diff --git a/application/src/main/java/org/thingsboard/server/controller/EntityQueryController.java b/application/src/main/java/org/thingsboard/server/controller/EntityQueryController.java
index 94417886d6..2df8298d23 100644
--- a/application/src/main/java/org/thingsboard/server/controller/EntityQueryController.java
+++ b/application/src/main/java/org/thingsboard/server/controller/EntityQueryController.java
@@ -16,18 +16,23 @@
 package org.thingsboard.server.controller;
 
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.ResponseBody;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.context.request.async.DeferredResult;
 import org.thingsboard.server.common.data.exception.ThingsboardException;
+import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.page.PageData;
 import org.thingsboard.server.common.data.query.AlarmData;
 import org.thingsboard.server.common.data.query.AlarmDataQuery;
 import org.thingsboard.server.common.data.query.EntityCountQuery;
 import org.thingsboard.server.common.data.query.EntityData;
+import org.thingsboard.server.common.data.query.EntityDataPageLink;
 import org.thingsboard.server.common.data.query.EntityDataQuery;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.query.EntityQueryService;
@@ -40,6 +45,7 @@ public class EntityQueryController extends BaseController {
     @Autowired
     private EntityQueryService entityQueryService;
 
+    private static final int MAX_PAGE_SIZE = 100;
 
     @PreAuthorize("hasAnyAuthority('TENANT_ADMIN', 'CUSTOMER_USER')")
     @RequestMapping(value = "/entitiesQuery/count", method = RequestMethod.POST)
@@ -76,4 +82,24 @@ public class EntityQueryController extends BaseController {
             throw handleException(e);
         }
     }
+
+    @PreAuthorize("hasAnyAuthority('TENANT_ADMIN', 'CUSTOMER_USER')")
+    @RequestMapping(value = "/entitiesQuery/find/keys", method = RequestMethod.POST)
+    @ResponseBody
+    public DeferredResult<ResponseEntity> findEntityTimeseriesAndAttributesKeysByQuery(@RequestBody EntityDataQuery query,
+                                                                                       @RequestParam("timeseries") boolean isTimeseries,
+                                                                                       @RequestParam("attributes") boolean isAttributes) throws ThingsboardException {
+        TenantId tenantId = getTenantId();
+        checkNotNull(query);
+        try {
+            EntityDataPageLink pageLink = query.getPageLink();
+            if (pageLink.getPageSize() > MAX_PAGE_SIZE) {
+                pageLink.setPageSize(MAX_PAGE_SIZE);
+            }
+            return entityQueryService.getKeysByQuery(getCurrentUser(), tenantId, query, isTimeseries, isAttributes);
+        } catch (Exception e) {
+            throw handleException(e);
+        }
+    }
+
 }
diff --git a/application/src/main/java/org/thingsboard/server/service/query/DefaultEntityQueryService.java b/application/src/main/java/org/thingsboard/server/service/query/DefaultEntityQueryService.java
index b8ccad466d..c9726693bf 100644
--- a/application/src/main/java/org/thingsboard/server/service/query/DefaultEntityQueryService.java
+++ b/application/src/main/java/org/thingsboard/server/service/query/DefaultEntityQueryService.java
@@ -15,11 +15,23 @@
  */
 package org.thingsboard.server.service.query;
 
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
 import lombok.extern.slf4j.Slf4j;
+import org.checkerframework.checker.nullness.qual.Nullable;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
+import org.springframework.util.CollectionUtils;
+import org.springframework.web.context.request.async.DeferredResult;
+import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.EntityId;
+import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.page.PageData;
 import org.thingsboard.server.common.data.query.AlarmData;
 import org.thingsboard.server.common.data.query.AlarmDataQuery;
@@ -31,12 +43,25 @@ import org.thingsboard.server.common.data.query.EntityDataSortOrder;
 import org.thingsboard.server.common.data.query.EntityKey;
 import org.thingsboard.server.common.data.query.EntityKeyType;
 import org.thingsboard.server.dao.alarm.AlarmService;
+import org.thingsboard.server.dao.attributes.AttributesService;
 import org.thingsboard.server.dao.entity.EntityService;
 import org.thingsboard.server.dao.model.ModelConstants;
+import org.thingsboard.server.dao.timeseries.TimeseriesService;
+import org.thingsboard.server.dao.util.mapping.JacksonUtil;
 import org.thingsboard.server.queue.util.TbCoreComponent;
+import org.thingsboard.server.service.executors.DbCallbackExecutorService;
+import org.thingsboard.server.service.security.AccessValidator;
 import org.thingsboard.server.service.security.model.SecurityUser;
 
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
 import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
 
 @Service
 @Slf4j
@@ -52,6 +77,15 @@ public class DefaultEntityQueryService implements EntityQueryService {
     @Value("${server.ws.max_entities_per_alarm_subscription:1000}")
     private int maxEntitiesPerAlarmSubscription;
 
+    @Autowired
+    private DbCallbackExecutorService dbCallbackExecutor;
+
+    @Autowired
+    private TimeseriesService timeseriesService;
+
+    @Autowired
+    private AttributesService attributesService;
+
     @Override
     public long countEntitiesByQuery(SecurityUser securityUser, EntityCountQuery query) {
         return entityService.countEntitiesByQuery(securityUser.getTenantId(), securityUser.getCustomerId(), query);
@@ -100,4 +134,103 @@ public class DefaultEntityQueryService implements EntityQueryService {
         EntityDataPageLink edpl = new EntityDataPageLink(maxEntitiesPerAlarmSubscription, 0, null, entitiesSortOrder);
         return new EntityDataQuery(query.getEntityFilter(), edpl, query.getEntityFields(), query.getLatestValues(), query.getKeyFilters());
     }
+
+    @Override
+    public DeferredResult<ResponseEntity> getKeysByQuery(SecurityUser securityUser, TenantId tenantId, EntityDataQuery query,
+                                                         boolean isTimeseries, boolean isAttributes) {
+        final DeferredResult<ResponseEntity> response = new DeferredResult<>();
+        if (!isAttributes && !isTimeseries) {
+            replyWithEmptyResponse(response);
+            return response;
+        }
+
+        List<EntityId> ids = this.findEntityDataByQuery(securityUser, query).getData().stream()
+                .map(EntityData::getEntityId)
+                .collect(Collectors.toList());
+        if (ids.isEmpty()) {
+            replyWithEmptyResponse(response);
+            return response;
+        }
+
+        Set<EntityType> types = ids.stream().map(EntityId::getEntityType).collect(Collectors.toSet());
+        final ListenableFuture<List<String>> timeseriesKeysFuture;
+        final ListenableFuture<List<String>> attributesKeysFuture;
+
+        if (isTimeseries) {
+            timeseriesKeysFuture = dbCallbackExecutor.submit(() -> timeseriesService.findAllKeysByEntityIds(tenantId, ids));
+        } else {
+            timeseriesKeysFuture = null;
+        }
+
+        if (isAttributes) {
+            Map<EntityType, List<EntityId>> typesMap = ids.stream().collect(Collectors.groupingBy(EntityId::getEntityType));
+            List<ListenableFuture<List<String>>> futures = new ArrayList<>(typesMap.size());
+            typesMap.forEach((type, entityIds) -> futures.add(dbCallbackExecutor.submit(() -> attributesService.findAllKeysByEntityIds(tenantId, type, entityIds))));
+            attributesKeysFuture = Futures.transform(Futures.allAsList(futures), lists -> {
+                if (CollectionUtils.isEmpty(lists)) {
+                    return Collections.emptyList();
+                }
+                return lists.stream().flatMap(List::stream).distinct().sorted().collect(Collectors.toList());
+            }, dbCallbackExecutor);
+        } else {
+            attributesKeysFuture = null;
+        }
+
+        if (isTimeseries && isAttributes) {
+            Futures.whenAllComplete(timeseriesKeysFuture, attributesKeysFuture).run(() -> {
+                try {
+                    replyWithResponse(response, types, timeseriesKeysFuture.get(), attributesKeysFuture.get());
+                } catch (Exception e) {
+                    log.error("Failed to fetch timeseries and attributes keys!", e);
+                    AccessValidator.handleError(e, response, HttpStatus.INTERNAL_SERVER_ERROR);
+                }
+            }, dbCallbackExecutor);
+        } else if (isTimeseries) {
+            addCallback(timeseriesKeysFuture, keys -> replyWithResponse(response, types, keys, null),
+                    error -> {
+                        log.error("Failed to fetch timeseries keys!", error);
+                        AccessValidator.handleError(error, response, HttpStatus.INTERNAL_SERVER_ERROR);
+                    });
+        } else {
+            addCallback(attributesKeysFuture, keys -> replyWithResponse(response, types, null, keys),
+                    error -> {
+                        log.error("Failed to fetch attributes keys!", error);
+                        AccessValidator.handleError(error, response, HttpStatus.INTERNAL_SERVER_ERROR);
+                    });
+        }
+        return response;
+    }
+
+    private void replyWithResponse(DeferredResult<ResponseEntity> response, Set<EntityType> types, List<String> timeseriesKeys, List<String> attributesKeys) {
+        ObjectNode json = JacksonUtil.newObjectNode();
+        addItemsToArrayNode(json.putArray("entityTypes"), types);
+        addItemsToArrayNode(json.putArray("timeseries"), timeseriesKeys);
+        addItemsToArrayNode(json.putArray("attribute"), attributesKeys);
+        response.setResult(new ResponseEntity(json, HttpStatus.OK));
+    }
+
+    private void replyWithEmptyResponse(DeferredResult<ResponseEntity> response) {
+        replyWithResponse(response, Collections.emptySet(), Collections.emptyList(), Collections.emptyList());
+    }
+
+    private void addItemsToArrayNode(ArrayNode arrayNode, Collection<?> collection) {
+        if (!CollectionUtils.isEmpty(collection)) {
+            collection.forEach(item -> arrayNode.add(item.toString()));
+        }
+    }
+
+    private void addCallback(ListenableFuture<List<String>> future, Consumer<List<String>> success, Consumer<Throwable> error) {
+        Futures.addCallback(future, new FutureCallback<List<String>>() {
+            @Override
+            public void onSuccess(@Nullable List<String> keys) {
+                success.accept(keys);
+            }
+
+            @Override
+            public void onFailure(Throwable t) {
+                error.accept(t);
+            }
+        }, dbCallbackExecutor);
+    }
+
 }
diff --git a/application/src/main/java/org/thingsboard/server/service/query/EntityQueryService.java b/application/src/main/java/org/thingsboard/server/service/query/EntityQueryService.java
index 15f7d86252..763453c815 100644
--- a/application/src/main/java/org/thingsboard/server/service/query/EntityQueryService.java
+++ b/application/src/main/java/org/thingsboard/server/service/query/EntityQueryService.java
@@ -15,6 +15,9 @@
  */
 package org.thingsboard.server.service.query;
 
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.context.request.async.DeferredResult;
+import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.common.data.page.PageData;
 import org.thingsboard.server.common.data.query.AlarmData;
 import org.thingsboard.server.common.data.query.AlarmDataQuery;
@@ -31,4 +34,7 @@ public interface EntityQueryService {
 
     PageData<AlarmData> findAlarmDataByQuery(SecurityUser securityUser, AlarmDataQuery query);
 
+    DeferredResult<ResponseEntity> getKeysByQuery(SecurityUser securityUser, TenantId tenantId, EntityDataQuery query,
+                                                  boolean isTimeseries, boolean isAttributes);
+
 }
diff --git a/application/src/main/resources/thingsboard.yml b/application/src/main/resources/thingsboard.yml
index 791b032352..4a7c58e4db 100644
--- a/application/src/main/resources/thingsboard.yml
+++ b/application/src/main/resources/thingsboard.yml
@@ -192,8 +192,9 @@ cassandra:
     read_consistency_level: "${CASSANDRA_READ_CONSISTENCY_LEVEL:ONE}"
     write_consistency_level: "${CASSANDRA_WRITE_CONSISTENCY_LEVEL:ONE}"
     default_fetch_size: "${CASSANDRA_DEFAULT_FETCH_SIZE:2000}"
-    # Specify partitioning size for timestamp key-value storage. Example: MINUTES, HOURS, DAYS, MONTHS,INDEFINITE
+    # Specify partitioning size for timestamp key-value storage. Example: MINUTES, HOURS, DAYS, MONTHS, INDEFINITE
     ts_key_value_partitioning: "${TS_KV_PARTITIONING:MONTHS}"
+    ts_key_value_partitions_max_cache_size: "${TS_KV_PARTITIONS_MAX_CACHE_SIZE:100000}"
     ts_key_value_ttl: "${TS_KV_TTL:0}"
     events_ttl: "${TS_EVENTS_TTL:0}"
     # Specify TTL of debug log in seconds. The current value corresponds to one week
diff --git a/common/dao-api/src/main/java/org/thingsboard/server/dao/attributes/AttributesService.java b/common/dao-api/src/main/java/org/thingsboard/server/dao/attributes/AttributesService.java
index 2e5c895f84..47f1f91376 100644
--- a/common/dao-api/src/main/java/org/thingsboard/server/dao/attributes/AttributesService.java
+++ b/common/dao-api/src/main/java/org/thingsboard/server/dao/attributes/AttributesService.java
@@ -16,6 +16,7 @@
 package org.thingsboard.server.dao.attributes;
 
 import com.google.common.util.concurrent.ListenableFuture;
+import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
@@ -42,4 +43,6 @@ public interface AttributesService {
 
     List<String> findAllKeysByDeviceProfileId(TenantId tenantId, DeviceProfileId deviceProfileId);
 
+    List<String> findAllKeysByEntityIds(TenantId tenantId, EntityType entityType, List<EntityId> entityIds);
+
 }
diff --git a/common/dao-api/src/main/java/org/thingsboard/server/dao/timeseries/TimeseriesService.java b/common/dao-api/src/main/java/org/thingsboard/server/dao/timeseries/TimeseriesService.java
index dbfbe3d0f5..ccf933e03d 100644
--- a/common/dao-api/src/main/java/org/thingsboard/server/dao/timeseries/TimeseriesService.java
+++ b/common/dao-api/src/main/java/org/thingsboard/server/dao/timeseries/TimeseriesService.java
@@ -50,4 +50,6 @@ public interface TimeseriesService {
     ListenableFuture<Collection<String>> removeAllLatest(TenantId tenantId, EntityId entityId);
 
     List<String> findAllKeysByDeviceProfileId(TenantId tenantId, DeviceProfileId deviceProfileId);
+
+    List<String> findAllKeysByEntityIds(TenantId tenantId, List<EntityId> entityIds);
 }
diff --git a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
index 0df14d4655..59a78570ad 100644
--- a/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
+++ b/common/transport/mqtt/src/main/java/org/thingsboard/server/transport/mqtt/MqttTransportHandler.java
@@ -462,26 +462,26 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
         String clientId = msg.payload().clientIdentifier();
         if (DataConstants.PROVISION.equals(userName) || DataConstants.PROVISION.equals(clientId)) {
             deviceSessionCtx.setProvisionOnly(true);
-            ctx.writeAndFlush(createMqttConnAckMsg(CONNECTION_ACCEPTED));
+            ctx.writeAndFlush(createMqttConnAckMsg(CONNECTION_ACCEPTED, msg));
         } else {
             X509Certificate cert;
             if (sslHandler != null && (cert = getX509Certificate()) != null) {
-                processX509CertConnect(ctx, cert);
+                processX509CertConnect(ctx, cert, msg);
             } else {
                 processAuthTokenConnect(ctx, msg);
             }
         }
     }
 
-    private void processAuthTokenConnect(ChannelHandlerContext ctx, MqttConnectMessage msg) {
-        String userName = msg.payload().userName();
+    private void processAuthTokenConnect(ChannelHandlerContext ctx, MqttConnectMessage connectMessage) {
+        String userName = connectMessage.payload().userName();
         log.info("[{}] Processing connect msg for client with user name: {}!", sessionId, userName);
         TransportProtos.ValidateBasicMqttCredRequestMsg.Builder request = TransportProtos.ValidateBasicMqttCredRequestMsg.newBuilder()
-                .setClientId(msg.payload().clientIdentifier());
+                .setClientId(connectMessage.payload().clientIdentifier());
         if (userName != null) {
             request.setUserName(userName);
         }
-        String password = msg.payload().password();
+        String password = connectMessage.payload().password();
         if (password != null) {
             request.setPassword(password);
         }
@@ -489,19 +489,19 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
                 new TransportServiceCallback<ValidateDeviceCredentialsResponse>() {
                     @Override
                     public void onSuccess(ValidateDeviceCredentialsResponse msg) {
-                        onValidateDeviceResponse(msg, ctx);
+                        onValidateDeviceResponse(msg, ctx, connectMessage);
                     }
 
                     @Override
                     public void onError(Throwable e) {
                         log.trace("[{}] Failed to process credentials: {}", address, userName, e);
-                        ctx.writeAndFlush(createMqttConnAckMsg(MqttConnectReturnCode.CONNECTION_REFUSED_SERVER_UNAVAILABLE));
+                        ctx.writeAndFlush(createMqttConnAckMsg(MqttConnectReturnCode.CONNECTION_REFUSED_SERVER_UNAVAILABLE, connectMessage));
                         ctx.close();
                     }
                 });
     }
 
-    private void processX509CertConnect(ChannelHandlerContext ctx, X509Certificate cert) {
+    private void processX509CertConnect(ChannelHandlerContext ctx, X509Certificate cert, MqttConnectMessage connectMessage) {
         try {
             if (!context.isSkipValidityCheckForClientCert()) {
                 cert.checkValidity();
@@ -512,18 +512,18 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
                     new TransportServiceCallback<ValidateDeviceCredentialsResponse>() {
                         @Override
                         public void onSuccess(ValidateDeviceCredentialsResponse msg) {
-                            onValidateDeviceResponse(msg, ctx);
+                            onValidateDeviceResponse(msg, ctx, connectMessage);
                         }
 
                         @Override
                         public void onError(Throwable e) {
                             log.trace("[{}] Failed to process credentials: {}", address, sha3Hash, e);
-                            ctx.writeAndFlush(createMqttConnAckMsg(MqttConnectReturnCode.CONNECTION_REFUSED_SERVER_UNAVAILABLE));
+                            ctx.writeAndFlush(createMqttConnAckMsg(MqttConnectReturnCode.CONNECTION_REFUSED_SERVER_UNAVAILABLE, connectMessage));
                             ctx.close();
                         }
                     });
         } catch (Exception e) {
-            ctx.writeAndFlush(createMqttConnAckMsg(CONNECTION_REFUSED_NOT_AUTHORIZED));
+            ctx.writeAndFlush(createMqttConnAckMsg(CONNECTION_REFUSED_NOT_AUTHORIZED, connectMessage));
             ctx.close();
         }
     }
@@ -547,11 +547,11 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
         doDisconnect();
     }
 
-    private MqttConnAckMessage createMqttConnAckMsg(MqttConnectReturnCode returnCode) {
+    private MqttConnAckMessage createMqttConnAckMsg(MqttConnectReturnCode returnCode, MqttConnectMessage msg) {
         MqttFixedHeader mqttFixedHeader =
                 new MqttFixedHeader(CONNACK, false, AT_MOST_ONCE, false, 0);
         MqttConnAckVariableHeader mqttConnAckVariableHeader =
-                new MqttConnAckVariableHeader(returnCode, true);
+                new MqttConnAckVariableHeader(returnCode, !msg.variableHeader().isCleanSession());
         return new MqttConnAckMessage(mqttFixedHeader, mqttConnAckVariableHeader);
     }
 
@@ -627,9 +627,10 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
         }
     }
 
-    private void onValidateDeviceResponse(ValidateDeviceCredentialsResponse msg, ChannelHandlerContext ctx) {
+
+    private void onValidateDeviceResponse(ValidateDeviceCredentialsResponse msg, ChannelHandlerContext ctx, MqttConnectMessage connectMessage) {
         if (!msg.hasDeviceInfo()) {
-            ctx.writeAndFlush(createMqttConnAckMsg(CONNECTION_REFUSED_NOT_AUTHORIZED));
+            ctx.writeAndFlush(createMqttConnAckMsg(CONNECTION_REFUSED_NOT_AUTHORIZED, connectMessage));
             ctx.close();
         } else {
             deviceSessionCtx.setDeviceInfo(msg.getDeviceInfo());
@@ -640,7 +641,7 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
                 public void onSuccess(Void msg) {
                     transportService.registerAsyncSession(deviceSessionCtx.getSessionInfo(), MqttTransportHandler.this);
                     checkGatewaySession();
-                    ctx.writeAndFlush(createMqttConnAckMsg(CONNECTION_ACCEPTED));
+                    ctx.writeAndFlush(createMqttConnAckMsg(CONNECTION_ACCEPTED, connectMessage));
                     log.info("[{}] Client connected!", sessionId);
                 }
 
@@ -651,7 +652,7 @@ public class MqttTransportHandler extends ChannelInboundHandlerAdapter implement
                     } else {
                         log.warn("[{}] Failed to submit session event", sessionId, e);
                     }
-                    ctx.writeAndFlush(createMqttConnAckMsg(MqttConnectReturnCode.CONNECTION_REFUSED_SERVER_UNAVAILABLE));
+                    ctx.writeAndFlush(createMqttConnAckMsg(MqttConnectReturnCode.CONNECTION_REFUSED_SERVER_UNAVAILABLE, connectMessage));
                     ctx.close();
                 }
             });
diff --git a/dao/src/main/java/org/thingsboard/server/dao/attributes/AttributesDao.java b/dao/src/main/java/org/thingsboard/server/dao/attributes/AttributesDao.java
index 458a251f8a..f1af5a1b1b 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/attributes/AttributesDao.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/attributes/AttributesDao.java
@@ -16,6 +16,7 @@
 package org.thingsboard.server.dao.attributes;
 
 import com.google.common.util.concurrent.ListenableFuture;
+import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
@@ -41,4 +42,6 @@ public interface AttributesDao {
     ListenableFuture<List<Void>> removeAll(TenantId tenantId, EntityId entityId, String attributeType, List<String> keys);
 
     List<String> findAllKeysByDeviceProfileId(TenantId tenantId, DeviceProfileId deviceProfileId);
+
+    List<String> findAllKeysByEntityIds(TenantId tenantId, EntityType entityType, List<EntityId> entityIds);
 }
diff --git a/dao/src/main/java/org/thingsboard/server/dao/attributes/BaseAttributesService.java b/dao/src/main/java/org/thingsboard/server/dao/attributes/BaseAttributesService.java
index 2e18006036..24f988c79d 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/attributes/BaseAttributesService.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/attributes/BaseAttributesService.java
@@ -20,6 +20,7 @@ import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
@@ -65,6 +66,11 @@ public class BaseAttributesService implements AttributesService {
         return attributesDao.findAllKeysByDeviceProfileId(tenantId, deviceProfileId);
     }
 
+    @Override
+    public List<String> findAllKeysByEntityIds(TenantId tenantId, EntityType entityType, List<EntityId> entityIds) {
+        return attributesDao.findAllKeysByEntityIds(tenantId, entityType, entityIds);
+    }
+
     @Override
     public ListenableFuture<List<Void>> save(TenantId tenantId, EntityId entityId, String scope, List<AttributeKvEntry> attributes) {
         validate(entityId, scope);
diff --git a/dao/src/main/java/org/thingsboard/server/dao/sql/attributes/AttributeKvRepository.java b/dao/src/main/java/org/thingsboard/server/dao/sql/attributes/AttributeKvRepository.java
index f6c3e195e7..3d14730b54 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/sql/attributes/AttributeKvRepository.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/sql/attributes/AttributeKvRepository.java
@@ -56,5 +56,8 @@ public interface AttributeKvRepository extends CrudRepository<AttributeKvEntity,
             "AND entity_id in (SELECT id FROM device WHERE tenant_id = :tenantId limit 100) ORDER BY attribute_key", nativeQuery = true)
     List<String> findAllKeysByTenantId(@Param("tenantId") UUID tenantId);
 
+    @Query(value = "SELECT DISTINCT attribute_key FROM attribute_kv WHERE entity_type = :entityType " +
+            "AND entity_id in :entityIds ORDER BY attribute_key", nativeQuery = true)
+    List<String> findAllKeysByEntityIds(@Param("entityType") String entityType, @Param("entityIds") List<UUID> entityIds);
 }
 
diff --git a/dao/src/main/java/org/thingsboard/server/dao/sql/attributes/JpaAttributeDao.java b/dao/src/main/java/org/thingsboard/server/dao/sql/attributes/JpaAttributeDao.java
index a95bd4b612..a6a9348e8f 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/sql/attributes/JpaAttributeDao.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/sql/attributes/JpaAttributeDao.java
@@ -22,6 +22,7 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Component;
+import org.thingsboard.server.common.data.EntityType;
 import org.thingsboard.server.common.data.id.DeviceProfileId;
 import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
@@ -145,6 +146,12 @@ public class JpaAttributeDao extends JpaAbstractDaoListeningExecutorService impl
         }
     }
 
+    @Override
+    public List<String> findAllKeysByEntityIds(TenantId tenantId, EntityType entityType, List<EntityId> entityIds) {
+        return attributeKvRepository
+                .findAllKeysByEntityIds(entityType.name(), entityIds.stream().map(EntityId::getId).collect(Collectors.toList()));
+    }
+
     @Override
     public ListenableFuture<Void> save(TenantId tenantId, EntityId entityId, String attributeType, AttributeKvEntry attribute) {
         AttributeKvEntity entity = new AttributeKvEntity();
diff --git a/dao/src/main/java/org/thingsboard/server/dao/sqlts/SqlTimeseriesLatestDao.java b/dao/src/main/java/org/thingsboard/server/dao/sqlts/SqlTimeseriesLatestDao.java
index ff602e6eed..a97fa97a5c 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/sqlts/SqlTimeseriesLatestDao.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/sqlts/SqlTimeseriesLatestDao.java
@@ -61,6 +61,7 @@ import java.util.Optional;
 import java.util.UUID;
 import java.util.concurrent.ExecutionException;
 import java.util.function.Function;
+import java.util.stream.Collectors;
 
 @Slf4j
 @Component
@@ -169,6 +170,11 @@ public class SqlTimeseriesLatestDao extends BaseAbstractSqlTimeseriesDao impleme
         }
     }
 
+    @Override
+    public List<String> findAllKeysByEntityIds(TenantId tenantId, List<EntityId> entityIds) {
+        return tsKvLatestRepository.findAllKeysByEntityIds(entityIds.stream().map(EntityId::getId).collect(Collectors.toList()));
+    }
+
     private ListenableFuture<Void> getNewLatestEntryFuture(TenantId tenantId, EntityId entityId, DeleteTsKvQuery query) {
         ListenableFuture<List<TsKvEntry>> future = findNewLatestEntryFuture(tenantId, entityId, query);
         return Futures.transformAsync(future, entryList -> {
diff --git a/dao/src/main/java/org/thingsboard/server/dao/sqlts/latest/TsKvLatestRepository.java b/dao/src/main/java/org/thingsboard/server/dao/sqlts/latest/TsKvLatestRepository.java
index cd3db69d70..da8c921487 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/sqlts/latest/TsKvLatestRepository.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/sqlts/latest/TsKvLatestRepository.java
@@ -36,4 +36,9 @@ public interface TsKvLatestRepository extends CrudRepository<TsKvLatestEntity, T
             "WHERE ts_kv_latest.entity_id IN (SELECT id FROM device WHERE tenant_id = :tenant_id limit 100) ORDER BY ts_kv_dictionary.key", nativeQuery = true)
     List<String> getKeysByTenantId(@Param("tenant_id") UUID tenantId);
 
+    @Query(value = "SELECT DISTINCT ts_kv_dictionary.key AS strKey FROM ts_kv_latest " +
+            "INNER JOIN ts_kv_dictionary ON ts_kv_latest.key = ts_kv_dictionary.key_id " +
+            "WHERE ts_kv_latest.entity_id IN :entityIds ORDER BY ts_kv_dictionary.key", nativeQuery = true)
+    List<String> findAllKeysByEntityIds(@Param("entityIds") List<UUID> entityIds);
+
 }
diff --git a/dao/src/main/java/org/thingsboard/server/dao/timeseries/BaseTimeseriesService.java b/dao/src/main/java/org/thingsboard/server/dao/timeseries/BaseTimeseriesService.java
index 7160baf939..12e081d234 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/timeseries/BaseTimeseriesService.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/timeseries/BaseTimeseriesService.java
@@ -121,6 +121,11 @@ public class BaseTimeseriesService implements TimeseriesService {
         return timeseriesLatestDao.findAllKeysByDeviceProfileId(tenantId, deviceProfileId);
     }
 
+    @Override
+    public List<String> findAllKeysByEntityIds(TenantId tenantId, List<EntityId> entityIds) {
+        return timeseriesLatestDao.findAllKeysByEntityIds(tenantId, entityIds);
+    }
+
     @Override
     public ListenableFuture<Integer> save(TenantId tenantId, EntityId entityId, TsKvEntry tsKvEntry) {
         validate(entityId);
diff --git a/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraBaseTimeseriesDao.java b/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraBaseTimeseriesDao.java
index b9d8c62833..db5f8f8684 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraBaseTimeseriesDao.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraBaseTimeseriesDao.java
@@ -79,12 +79,17 @@ public class CassandraBaseTimeseriesDao extends AbstractCassandraBaseTimeseriesD
 
     protected static List<Long> FIXED_PARTITION = Arrays.asList(new Long[]{0L});
 
+    private CassandraTsPartitionsCache cassandraTsPartitionsCache;
+
     @Autowired
     private Environment environment;
 
     @Value("${cassandra.query.ts_key_value_partitioning}")
     private String partitioning;
 
+    @Value("${cassandra.query.ts_key_value_partitions_max_cache_size:100000}")
+    private long partitionsCacheSize;
+
     @Value("${cassandra.query.ts_key_value_ttl}")
     private long systemTtl;
 
@@ -111,13 +116,16 @@ public class CassandraBaseTimeseriesDao extends AbstractCassandraBaseTimeseriesD
         super.startExecutor();
         if (!isInstall()) {
             getFetchStmt(Aggregation.NONE, DESC_ORDER);
-        }
-        Optional<NoSqlTsPartitionDate> partition = NoSqlTsPartitionDate.parse(partitioning);
-        if (partition.isPresent()) {
-            tsFormat = partition.get();
-        } else {
-            log.warn("Incorrect configuration of partitioning {}", partitioning);
-            throw new RuntimeException("Failed to parse partitioning property: " + partitioning + "!");
+            Optional<NoSqlTsPartitionDate> partition = NoSqlTsPartitionDate.parse(partitioning);
+            if (partition.isPresent()) {
+                tsFormat = partition.get();
+                if (!isFixedPartitioning() && partitionsCacheSize > 0) {
+                    cassandraTsPartitionsCache = new CassandraTsPartitionsCache(partitionsCacheSize);
+                }
+            } else {
+                log.warn("Incorrect configuration of partitioning {}", partitioning);
+                throw new RuntimeException("Failed to parse partitioning property: " + partitioning + "!");
+            }
         }
     }
 
@@ -175,17 +183,18 @@ public class CassandraBaseTimeseriesDao extends AbstractCassandraBaseTimeseriesD
         }
         ttl = computeTtl(ttl);
         long partition = toPartitionTs(tsKvEntryTs);
-        log.debug("Saving partition {} for the entity [{}-{}] and key {}", partition, entityId.getEntityType(), entityId.getId(), key);
-        BoundStatementBuilder stmtBuilder = new BoundStatementBuilder((ttl == 0 ? getPartitionInsertStmt() : getPartitionInsertTtlStmt()).bind());
-        stmtBuilder.setString(0, entityId.getEntityType().name())
-                .setUuid(1, entityId.getId())
-                .setLong(2, partition)
-                .setString(3, key);
-        if (ttl > 0) {
-            stmtBuilder.setInt(4, (int) ttl);
+        if (cassandraTsPartitionsCache == null) {
+            return doSavePartition(tenantId, entityId, key, ttl, partition);
+        } else {
+            CassandraPartitionCacheKey partitionSearchKey = new CassandraPartitionCacheKey(entityId, key, partition);
+            if (!cassandraTsPartitionsCache.has(partitionSearchKey)) {
+                ListenableFuture<Integer> result = doSavePartition(tenantId, entityId, key, ttl, partition);
+                Futures.addCallback(result, new CacheCallback<>(partitionSearchKey), MoreExecutors.directExecutor());
+                return result;
+            } else {
+                return Futures.immediateFuture(0);
+            }
         }
-        BoundStatement stmt = stmtBuilder.build();
-        return getFuture(executeAsyncWrite(tenantId, stmt), rs -> 0);
     }
 
     @Override
@@ -461,6 +470,38 @@ public class CassandraBaseTimeseriesDao extends AbstractCassandraBaseTimeseriesD
         return getFuture(executeAsyncWrite(tenantId, stmt), rs -> null);
     }
 
+    private ListenableFuture<Integer> doSavePartition(TenantId tenantId, EntityId entityId, String key, long ttl, long partition) {
+        log.debug("Saving partition {} for the entity [{}-{}] and key {}", partition, entityId.getEntityType(), entityId.getId(), key);
+        PreparedStatement preparedStatement = ttl == 0 ? getPartitionInsertStmt() : getPartitionInsertTtlStmt();
+        BoundStatement stmt = preparedStatement.bind();
+        stmt = stmt.setString(0, entityId.getEntityType().name())
+                .setUuid(1, entityId.getId())
+                .setLong(2, partition)
+                .setString(3, key);
+        if (ttl > 0) {
+            stmt = stmt.setInt(4, (int) ttl);
+        }
+        return getFuture(executeAsyncWrite(tenantId, stmt), rs -> 0);
+    }
+
+    private class CacheCallback<Void> implements FutureCallback<Void> {
+        private final CassandraPartitionCacheKey key;
+
+        private CacheCallback(CassandraPartitionCacheKey key) {
+            this.key = key;
+        }
+
+        @Override
+        public void onSuccess(Void result) {
+            cassandraTsPartitionsCache.put(key);
+        }
+
+        @Override
+        public void onFailure(Throwable t) {
+
+        }
+    }
+
     private long computeTtl(long ttl) {
         if (systemTtl > 0) {
             if (ttl == 0) {
diff --git a/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraBaseTimeseriesLatestDao.java b/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraBaseTimeseriesLatestDao.java
index f086f913c0..2cb67f1260 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraBaseTimeseriesLatestDao.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraBaseTimeseriesLatestDao.java
@@ -86,6 +86,11 @@ public class CassandraBaseTimeseriesLatestDao extends AbstractCassandraBaseTimes
         return Collections.emptyList();
     }
 
+    @Override
+    public List<String> findAllKeysByEntityIds(TenantId tenantId, List<EntityId> entityIds) {
+        return Collections.emptyList();
+    }
+
     @Override
     public ListenableFuture<Void> saveLatest(TenantId tenantId, EntityId entityId, TsKvEntry tsKvEntry) {
         BoundStatementBuilder stmtBuilder = new BoundStatementBuilder(getLatestStmt().bind());
diff --git a/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraPartitionCacheKey.java b/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraPartitionCacheKey.java
new file mode 100644
index 0000000000..791ce84113
--- /dev/null
+++ b/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraPartitionCacheKey.java
@@ -0,0 +1,30 @@
+/**
+ * Copyright © 2016-2020 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.dao.timeseries;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import org.thingsboard.server.common.data.id.EntityId;
+
+@Data
+@AllArgsConstructor
+public class CassandraPartitionCacheKey {
+
+    private EntityId entityId;
+    private String key;
+    private long partition;
+
+}
\ No newline at end of file
diff --git a/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraTsPartitionsCache.java b/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraTsPartitionsCache.java
new file mode 100644
index 0000000000..c167fb28cb
--- /dev/null
+++ b/dao/src/main/java/org/thingsboard/server/dao/timeseries/CassandraTsPartitionsCache.java
@@ -0,0 +1,42 @@
+/**
+ * Copyright © 2016-2020 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.dao.timeseries;
+
+import com.github.benmanes.caffeine.cache.AsyncLoadingCache;
+import com.github.benmanes.caffeine.cache.Caffeine;
+
+import java.util.concurrent.CompletableFuture;
+
+public class CassandraTsPartitionsCache {
+
+    private AsyncLoadingCache<CassandraPartitionCacheKey, Boolean> partitionsCache;
+
+    public CassandraTsPartitionsCache(long maxCacheSize) {
+        this.partitionsCache = Caffeine.newBuilder()
+                .maximumSize(maxCacheSize)
+                .buildAsync(key -> {
+                    throw new IllegalStateException("'get' methods calls are not supported!");
+                });
+    }
+
+    public boolean has(CassandraPartitionCacheKey key) {
+        return partitionsCache.getIfPresent(key) != null;
+    }
+
+    public void put(CassandraPartitionCacheKey key) {
+        partitionsCache.put(key, CompletableFuture.completedFuture(true));
+    }
+}
diff --git a/dao/src/main/java/org/thingsboard/server/dao/timeseries/TimeseriesLatestDao.java b/dao/src/main/java/org/thingsboard/server/dao/timeseries/TimeseriesLatestDao.java
index 0b7156e03e..b2cd346277 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/timeseries/TimeseriesLatestDao.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/timeseries/TimeseriesLatestDao.java
@@ -35,4 +35,6 @@ public interface TimeseriesLatestDao {
     ListenableFuture<Void> removeLatest(TenantId tenantId, EntityId entityId, DeleteTsKvQuery query);
 
     List<String> findAllKeysByDeviceProfileId(TenantId tenantId, DeviceProfileId deviceProfileId);
+
+    List<String> findAllKeysByEntityIds(TenantId tenantId, List<EntityId> entityIds);
 }
diff --git a/dao/src/test/java/org/thingsboard/server/dao/nosql/CassandraPartitionsCacheTest.java b/dao/src/test/java/org/thingsboard/server/dao/nosql/CassandraPartitionsCacheTest.java
new file mode 100644
index 0000000000..83975f46e8
--- /dev/null
+++ b/dao/src/test/java/org/thingsboard/server/dao/nosql/CassandraPartitionsCacheTest.java
@@ -0,0 +1,110 @@
+/**
+ * Copyright © 2016-2020 The Thingsboard Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.thingsboard.server.dao.nosql;
+
+import com.datastax.oss.driver.api.core.ConsistencyLevel;
+import com.datastax.oss.driver.api.core.cql.BoundStatement;
+import com.datastax.oss.driver.api.core.cql.PreparedStatement;
+import com.datastax.oss.driver.api.core.cql.Statement;
+import com.google.common.util.concurrent.Futures;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Spy;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.springframework.core.env.Environment;
+import org.springframework.test.util.ReflectionTestUtils;
+import org.thingsboard.server.common.data.id.TenantId;
+import org.thingsboard.server.dao.cassandra.CassandraCluster;
+import org.thingsboard.server.dao.cassandra.guava.GuavaSession;
+import org.thingsboard.server.dao.timeseries.CassandraBaseTimeseriesDao;
+
+import java.util.UUID;
+
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@RunWith(MockitoJUnitRunner.class)
+public class CassandraPartitionsCacheTest {
+
+    @Spy
+    private CassandraBaseTimeseriesDao cassandraBaseTimeseriesDao;
+
+    @Mock
+    private PreparedStatement preparedStatement;
+
+    @Mock
+    private BoundStatement boundStatement;
+
+    @Mock
+    private Environment environment;
+
+    @Mock
+    private CassandraBufferedRateExecutor rateLimiter;
+
+    @Mock
+    private CassandraCluster cluster;
+
+    @Mock
+    private GuavaSession session;
+
+    @Before
+    public void setUp() throws Exception {
+        ReflectionTestUtils.setField(cassandraBaseTimeseriesDao, "partitioning", "MONTHS");
+        ReflectionTestUtils.setField(cassandraBaseTimeseriesDao, "partitionsCacheSize", 100000);
+        ReflectionTestUtils.setField(cassandraBaseTimeseriesDao, "systemTtl", 0);
+        ReflectionTestUtils.setField(cassandraBaseTimeseriesDao, "setNullValuesEnabled", false);
+        ReflectionTestUtils.setField(cassandraBaseTimeseriesDao, "environment", environment);
+        ReflectionTestUtils.setField(cassandraBaseTimeseriesDao, "rateLimiter", rateLimiter);
+        ReflectionTestUtils.setField(cassandraBaseTimeseriesDao, "cluster", cluster);
+
+        when(cluster.getDefaultReadConsistencyLevel()).thenReturn(ConsistencyLevel.ONE);
+        when(cluster.getDefaultWriteConsistencyLevel()).thenReturn(ConsistencyLevel.ONE);
+        when(cluster.getSession()).thenReturn(session);
+        when(session.prepare(anyString())).thenReturn(preparedStatement);
+
+        when(preparedStatement.bind()).thenReturn(boundStatement);
+
+        when(boundStatement.setString(anyInt(), anyString())).thenReturn(boundStatement);
+        when(boundStatement.setUuid(anyInt(), any(UUID.class))).thenReturn(boundStatement);
+        when(boundStatement.setLong(anyInt(), any(Long.class))).thenReturn(boundStatement);
+
+        doReturn(Futures.immediateFuture(0)).when(cassandraBaseTimeseriesDao).getFuture(any(TbResultSetFuture.class), any());
+    }
+
+    @Test
+    public void testPartitionSave() throws Exception {
+        cassandraBaseTimeseriesDao.init();
+
+        UUID id = UUID.randomUUID();
+        TenantId tenantId = new TenantId(id);
+        long tsKvEntryTs = System.currentTimeMillis();
+
+        for (int i = 0; i < 50000; i++) {
+            cassandraBaseTimeseriesDao.savePartition(tenantId, tenantId, tsKvEntryTs, "test" + i, 0);
+        }
+        for (int i = 0; i < 60000; i++) {
+            cassandraBaseTimeseriesDao.savePartition(tenantId, tenantId, tsKvEntryTs, "test" + i, 0);
+        }
+        verify(cassandraBaseTimeseriesDao, times(60000)).executeAsyncWrite(any(TenantId.class), any(Statement.class));
+    }
+}
diff --git a/dao/src/test/resources/cassandra-test.properties b/dao/src/test/resources/cassandra-test.properties
index 43a78abac4..4b3ea0a74d 100644
--- a/dao/src/test/resources/cassandra-test.properties
+++ b/dao/src/test/resources/cassandra-test.properties
@@ -54,6 +54,8 @@ cassandra.query.default_fetch_size=2000
 
 cassandra.query.ts_key_value_partitioning=HOURS
 
+cassandra.query.ts_key_value_partitions_max_cache_size=100000
+
 cassandra.query.ts_key_value_ttl=0
 
 cassandra.query.debug_events_ttl=604800
diff --git a/ui-ngx/src/app/core/http/entity.service.ts b/ui-ngx/src/app/core/http/entity.service.ts
index 6a1f0191c4..953e67549c 100644
--- a/ui-ngx/src/app/core/http/entity.service.ts
+++ b/ui-ngx/src/app/core/http/entity.service.ts
@@ -41,10 +41,16 @@ import { AttributeScope, DataKeyType } from '@shared/models/telemetry/telemetry.
 import { defaultHttpOptionsFromConfig, RequestConfig } from '@core/http/http-utils';
 import { RuleChainService } from '@core/http/rule-chain.service';
 import { AliasInfo, StateParams, SubscriptionInfo } from '@core/api/widget-api.models';
-import { Datasource, DatasourceType, KeyInfo } from '@app/shared/models/widget.models';
+import { DataKey, Datasource, DatasourceType, KeyInfo } from '@app/shared/models/widget.models';
 import { UtilsService } from '@core/services/utils.service';
 import { AliasFilterType, EntityAlias, EntityAliasFilter, EntityAliasFilterResult } from '@shared/models/alias.models';
-import { entityFields, EntityInfo, ImportEntitiesResultInfo, ImportEntityData } from '@shared/models/entity.models';
+import {
+  EntitiesKeysByQuery,
+  entityFields,
+  EntityInfo,
+  ImportEntitiesResultInfo,
+  ImportEntityData
+} from '@shared/models/entity.models';
 import { EntityRelationService } from '@core/http/entity-relation.service';
 import { deepClone, isDefined, isDefinedAndNotNull } from '@core/utils';
 import { Asset } from '@shared/models/asset.models';
@@ -376,6 +382,13 @@ export class EntityService {
     return this.http.post<PageData<EntityData>>('/api/entitiesQuery/find', query, defaultHttpOptionsFromConfig(config));
   }
 
+  public findEntityKeysByQuery(query: EntityDataQuery, attributes = true, timeseries = true,
+                               config?: RequestConfig): Observable<EntitiesKeysByQuery> {
+    return this.http.post<EntitiesKeysByQuery>(
+      `/api/entitiesQuery/find/keys?attributes=${attributes}&timeseries=${timeseries}`,
+      query, defaultHttpOptionsFromConfig(config));
+  }
+
   public findAlarmDataByQuery(query: AlarmDataQuery, config?: RequestConfig): Observable<PageData<AlarmData>> {
     return this.http.post<PageData<AlarmData>>('/api/alarmsQuery/find', query, defaultHttpOptionsFromConfig(config));
   }
@@ -595,7 +608,7 @@ export class EntityService {
     return entityTypes;
   }
 
-  private getEntityFieldKeys(entityType: EntityType, searchText: string): Array<string> {
+  private getEntityFieldKeys(entityType: EntityType, searchText: string = ''): Array<string> {
     const entityFieldKeys: string[] = [entityFields.createdTime.keyName];
     const query = searchText.toLowerCase();
     switch (entityType) {
@@ -637,7 +650,7 @@ export class EntityService {
     return query ? entityFieldKeys.filter((entityField) => entityField.toLowerCase().indexOf(query) === 0) : entityFieldKeys;
   }
 
-  private getAlarmKeys(searchText: string): Array<string> {
+  private getAlarmKeys(searchText: string = ''): Array<string> {
     const alarmKeys: string[] = Object.keys(alarmFields);
     const query = searchText.toLowerCase();
     return query ? alarmKeys.filter((alarmField) => alarmField.toLowerCase().indexOf(query) === 0) : alarmKeys;
@@ -672,6 +685,59 @@ export class EntityService {
     );
   }
 
+  public getEntityKeysByEntityFilter(filter: EntityFilter, types: DataKeyType[], config?: RequestConfig): Observable<Array<DataKey>> {
+    if (!types.length) {
+      return of([]);
+    }
+    let entitiesKeysByQuery$: Observable<EntitiesKeysByQuery>;
+    if (filter !== null && types.some(type => [DataKeyType.timeseries, DataKeyType.attribute].includes(type))) {
+      const dataQuery = {
+        entityFilter: filter,
+        pageLink: createDefaultEntityDataPageLink(100),
+      };
+      entitiesKeysByQuery$ = this.findEntityKeysByQuery(dataQuery, types.includes(DataKeyType.attribute),
+        types.includes(DataKeyType.timeseries), config);
+    } else {
+      entitiesKeysByQuery$ = of({
+        attribute: [],
+        timeseries: [],
+        entityTypes: [],
+      });
+    }
+    return entitiesKeysByQuery$.pipe(
+      map((entitiesKeys) => {
+        const dataKeys: Array<DataKey> = [];
+        types.forEach(type => {
+          let keys: Array<string>;
+          switch (type) {
+            case DataKeyType.entityField:
+              if (entitiesKeys.entityTypes.length) {
+                const entitiesFields = [];
+                entitiesKeys.entityTypes.forEach(entityType => entitiesFields.push(...this.getEntityFieldKeys(entityType)));
+                keys = Array.from(new Set(entitiesFields));
+              }
+              break;
+            case DataKeyType.alarm:
+              keys = this.getAlarmKeys();
+              break;
+            case DataKeyType.attribute:
+            case DataKeyType.timeseries:
+              if (entitiesKeys[type].length) {
+                keys = entitiesKeys[type];
+              }
+              break;
+          }
+          if (keys) {
+            dataKeys.push(...keys.map(key => {
+              return {name: key, type};
+            }));
+          }
+        });
+        return dataKeys;
+      })
+    );
+  }
+
   public createDatasourcesFromSubscriptionsInfo(subscriptionsInfo: Array<SubscriptionInfo>): Array<Datasource> {
     const datasources = subscriptionsInfo.map(subscriptionInfo => this.createDatasourceFromSubscriptionInfo(subscriptionInfo));
     this.utils.generateColors(datasources);
diff --git a/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.html b/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.html
index cec0f48259..79fa9b7383 100644
--- a/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.html
+++ b/ui-ngx/src/app/modules/home/components/profile/alarm/device-profile-alarm.component.html
@@ -33,87 +33,91 @@
       </button>
     </div>
   </mat-expansion-panel-header>
-  <div fxLayout="column" fxLayoutGap="0.5em">
-    <mat-divider></mat-divider>
-    <mat-form-field fxFlex floatLabel="always">
-      <mat-label>{{'device-profile.alarm-type' | translate}}</mat-label>
-      <input required matInput formControlName="alarmType" placeholder="Enter alarm type">
-      <mat-error *ngIf="alarmFormGroup.get('alarmType').hasError('required')">
-        {{ 'device-profile.alarm-type-required' | translate }}
-      </mat-error>
-      <mat-error *ngIf="alarmFormGroup.get('alarmType').hasError('unique')">
-        {{ 'device-profile.alarm-type-unique' | translate }}
-      </mat-error>
-    </mat-form-field>
-  </div>
-  <mat-expansion-panel class="advanced-settings" [expanded]="false">
-    <mat-expansion-panel-header>
-      <mat-panel-title>
-        <div fxFlex fxLayout="row" fxLayoutAlign="end center">
-          <div class="tb-small" translate>device-profile.advanced-settings</div>
-        </div>
-      </mat-panel-title>
-    </mat-expansion-panel-header>
-    <mat-checkbox formControlName="propagate" style="display: block; padding-bottom: 16px;">
-      {{ 'device-profile.propagate-alarm' | translate }}
-    </mat-checkbox>
-    <section *ngIf="alarmFormGroup.get('propagate').value === true" style="padding-bottom: 1em;">
-      <mat-form-field floatLabel="always" class="mat-block">
-        <mat-label translate>device-profile.alarm-rule-relation-types-list</mat-label>
-        <mat-chip-list #relationTypesChipList [disabled]="disabled">
-          <mat-chip
-            *ngFor="let key of alarmFormGroup.get('propagateRelationTypes').value;"
-            (removed)="removeRelationType(key)">
-            {{key}}
-            <mat-icon matChipRemove>close</mat-icon>
-          </mat-chip>
-          <input matInput type="text" placeholder="{{'device-profile.alarm-rule-relation-types-list' | translate}}"
-                 style="max-width: 200px;"
-                 [matChipInputFor]="relationTypesChipList"
-                 [matChipInputSeparatorKeyCodes]="separatorKeysCodes"
-                 (matChipInputTokenEnd)="addRelationType($event)"
-                 [matChipInputAddOnBlur]="true">
-        </mat-chip-list>
-        <mat-hint innerHTML="{{ 'device-profile.alarm-rule-relation-types-list-hint' | translate }}"></mat-hint>
+  <ng-template matExpansionPanelContent>
+    <div fxLayout="column" fxLayoutGap="0.5em">
+      <mat-divider></mat-divider>
+      <mat-form-field fxFlex floatLabel="always">
+        <mat-label>{{'device-profile.alarm-type' | translate}}</mat-label>
+        <input required matInput formControlName="alarmType" placeholder="Enter alarm type">
+        <mat-error *ngIf="alarmFormGroup.get('alarmType').hasError('required')">
+          {{ 'device-profile.alarm-type-required' | translate }}
+        </mat-error>
+        <mat-error *ngIf="alarmFormGroup.get('alarmType').hasError('unique')">
+          {{ 'device-profile.alarm-type-unique' | translate }}
+        </mat-error>
       </mat-form-field>
-    </section>
-  </mat-expansion-panel>
-  <div fxFlex fxLayout="column">
-    <div translate class="tb-small" style="padding-bottom: 8px;">device-profile.create-alarm-rules</div>
-    <tb-create-alarm-rules formControlName="createRules"
-                           style="padding-bottom: 16px;"
-                           [deviceProfileId]="deviceProfileId">
-    </tb-create-alarm-rules>
-    <div translate class="tb-small" style="padding-bottom: 8px;">device-profile.clear-alarm-rule</div>
-    <div fxLayout="row" fxLayoutGap="8px;" fxLayoutAlign="start center"
-         [fxShow]="alarmFormGroup.get('clearRule').value"
-         style="padding-bottom: 8px;">
-      <div class="clear-alarm-rule" fxFlex fxLayout="row">
-        <tb-alarm-rule formControlName="clearRule" fxFlex [deviceProfileId]="deviceProfileId">
-        </tb-alarm-rule>
-      </div>
-      <button *ngIf="!disabled"
-              mat-icon-button color="primary" style="min-width: 40px;"
-              type="button"
-              (click)="removeClearAlarmRule()"
-              matTooltip="{{ 'action.remove' | translate }}"
-              matTooltipPosition="above">
-        <mat-icon>remove_circle_outline</mat-icon>
-      </button>
     </div>
-    <div *ngIf="disabled && !alarmFormGroup.get('clearRule').value">
-      <span translate fxLayoutAlign="center center" style="margin: 16px 0"
-            class="tb-prompt">device-profile.no-clear-alarm-rule</span>
-    </div>
-    <div *ngIf="!disabled" [fxShow]="!alarmFormGroup.get('clearRule').value">
-      <button mat-stroked-button color="primary"
-              type="button"
-              (click)="addClearAlarmRule()"
-              matTooltip="{{ 'device-profile.add-clear-alarm-rule' | translate }}"
-              matTooltipPosition="above">
-        <mat-icon class="button-icon">add_circle_outline</mat-icon>
-        {{ 'device-profile.add-clear-alarm-rule' | translate }}
-      </button>
+    <mat-expansion-panel class="advanced-settings" [expanded]="false">
+      <mat-expansion-panel-header>
+        <mat-panel-title>
+          <div fxFlex fxLayout="row" fxLayoutAlign="end center">
+            <div class="tb-small" translate>device-profile.advanced-settings</div>
+          </div>
+        </mat-panel-title>
+      </mat-expansion-panel-header>
+      <ng-template matExpansionPanelContent>
+        <mat-checkbox formControlName="propagate" style="display: block; padding-bottom: 16px;">
+          {{ 'device-profile.propagate-alarm' | translate }}
+        </mat-checkbox>
+        <section *ngIf="alarmFormGroup.get('propagate').value === true" style="padding-bottom: 1em;">
+          <mat-form-field floatLabel="always" class="mat-block">
+            <mat-label translate>device-profile.alarm-rule-relation-types-list</mat-label>
+            <mat-chip-list #relationTypesChipList [disabled]="disabled">
+              <mat-chip
+                *ngFor="let key of alarmFormGroup.get('propagateRelationTypes').value;"
+                (removed)="removeRelationType(key)">
+                {{key}}
+                <mat-icon matChipRemove>close</mat-icon>
+              </mat-chip>
+              <input matInput type="text" placeholder="{{'device-profile.alarm-rule-relation-types-list' | translate}}"
+                     style="max-width: 200px;"
+                     [matChipInputFor]="relationTypesChipList"
+                     [matChipInputSeparatorKeyCodes]="separatorKeysCodes"
+                     (matChipInputTokenEnd)="addRelationType($event)"
+                     [matChipInputAddOnBlur]="true">
+            </mat-chip-list>
+            <mat-hint innerHTML="{{ 'device-profile.alarm-rule-relation-types-list-hint' | translate }}"></mat-hint>
+          </mat-form-field>
+        </section>
+      </ng-template>
+    </mat-expansion-panel>
+    <div fxFlex fxLayout="column">
+      <div translate class="tb-small" style="padding-bottom: 8px;">device-profile.create-alarm-rules</div>
+      <tb-create-alarm-rules formControlName="createRules"
+                             style="padding-bottom: 16px;"
+                             [deviceProfileId]="deviceProfileId">
+      </tb-create-alarm-rules>
+      <div translate class="tb-small" style="padding-bottom: 8px;">device-profile.clear-alarm-rule</div>
+      <div fxLayout="row" fxLayoutGap="8px;" fxLayoutAlign="start center"
+           [fxShow]="alarmFormGroup.get('clearRule').value"
+           style="padding-bottom: 8px;">
+        <div class="clear-alarm-rule" fxFlex fxLayout="row">
+          <tb-alarm-rule formControlName="clearRule" fxFlex [deviceProfileId]="deviceProfileId">
+          </tb-alarm-rule>
+        </div>
+        <button *ngIf="!disabled"
+                mat-icon-button color="primary" style="min-width: 40px;"
+                type="button"
+                (click)="removeClearAlarmRule()"
+                matTooltip="{{ 'action.remove' | translate }}"
+                matTooltipPosition="above">
+          <mat-icon>remove_circle_outline</mat-icon>
+        </button>
+      </div>
+      <div *ngIf="disabled && !alarmFormGroup.get('clearRule').value">
+        <span translate fxLayoutAlign="center center" style="margin: 16px 0"
+              class="tb-prompt">device-profile.no-clear-alarm-rule</span>
+      </div>
+      <div *ngIf="!disabled" [fxShow]="!alarmFormGroup.get('clearRule').value">
+        <button mat-stroked-button color="primary"
+                type="button"
+                (click)="addClearAlarmRule()"
+                matTooltip="{{ 'device-profile.add-clear-alarm-rule' | translate }}"
+                matTooltipPosition="above">
+          <mat-icon class="button-icon">add_circle_outline</mat-icon>
+          {{ 'device-profile.add-clear-alarm-rule' | translate }}
+        </button>
+      </div>
     </div>
-  </div>
+  </ng-template>
 </mat-expansion-panel>
diff --git a/ui-ngx/src/app/modules/home/components/profile/device-profile.component.html b/ui-ngx/src/app/modules/home/components/profile/device-profile.component.html
index 4cba236d2a..bb3d6e7e43 100644
--- a/ui-ngx/src/app/modules/home/components/profile/device-profile.component.html
+++ b/ui-ngx/src/app/modules/home/components/profile/device-profile.component.html
@@ -91,10 +91,12 @@
                 <div translate>device-profile.profile-configuration</div>
               </mat-panel-title>
             </mat-expansion-panel-header>
-            <tb-device-profile-configuration
-              formControlName="configuration"
-              required>
-            </tb-device-profile-configuration>
+            <ng-template matExpansionPanelContent>
+              <tb-device-profile-configuration
+                formControlName="configuration"
+                required>
+              </tb-device-profile-configuration>
+            </ng-template>
           </mat-expansion-panel>
           <mat-expansion-panel *ngIf="displayTransportConfiguration" [expanded]="true">
             <mat-expansion-panel-header>
@@ -102,10 +104,12 @@
                 <div translate>device-profile.transport-configuration</div>
               </mat-panel-title>
             </mat-expansion-panel-header>
-            <tb-device-profile-transport-configuration
-              formControlName="transportConfiguration"
-              required>
-            </tb-device-profile-transport-configuration>
+            <ng-template matExpansionPanelContent>
+              <tb-device-profile-transport-configuration
+                formControlName="transportConfiguration"
+                required>
+              </tb-device-profile-transport-configuration>
+            </ng-template>
           </mat-expansion-panel>
           <mat-expansion-panel [expanded]="false">
             <mat-expansion-panel-header>
@@ -115,10 +119,12 @@
                       entityForm.get('profileData.alarms').value.length : 0} }}</div>
               </mat-panel-title>
             </mat-expansion-panel-header>
-            <tb-device-profile-alarms
-              formControlName="alarms"
-              [deviceProfileId]="deviceProfileId">
-            </tb-device-profile-alarms>
+            <ng-template matExpansionPanelContent>
+              <tb-device-profile-alarms
+                formControlName="alarms"
+                [deviceProfileId]="deviceProfileId">
+              </tb-device-profile-alarms>
+            </ng-template>
           </mat-expansion-panel>
           <mat-expansion-panel [expanded]="true">
             <mat-expansion-panel-header>
@@ -126,9 +132,11 @@
                 <div translate>device-profile.device-provisioning</div>
               </mat-panel-title>
             </mat-expansion-panel-header>
-            <tb-device-profile-provision-configuration
-              formControlName="provisionConfiguration">
-            </tb-device-profile-provision-configuration>
+            <ng-template matExpansionPanelContent>
+              <tb-device-profile-provision-configuration
+                formControlName="provisionConfiguration">
+              </tb-device-profile-provision-configuration>
+            </ng-template>
           </mat-expansion-panel>
         </mat-accordion>
       </div>
diff --git a/ui-ngx/src/app/modules/home/components/profile/tenant-profile-data.component.html b/ui-ngx/src/app/modules/home/components/profile/tenant-profile-data.component.html
index 3d853940f4..ae7a9540db 100644
--- a/ui-ngx/src/app/modules/home/components/profile/tenant-profile-data.component.html
+++ b/ui-ngx/src/app/modules/home/components/profile/tenant-profile-data.component.html
@@ -22,9 +22,11 @@
         <div translate>tenant-profile.profile-configuration</div>
       </mat-panel-title>
     </mat-expansion-panel-header>
-    <tb-tenant-profile-configuration
-      formControlName="configuration"
-      required>
-    </tb-tenant-profile-configuration>
+    <ng-template matExpansionPanelContent>
+      <tb-tenant-profile-configuration
+        formControlName="configuration"
+        required>
+      </tb-tenant-profile-configuration>
+    </ng-template>
   </mat-expansion-panel>
 </form>
diff --git a/ui-ngx/src/app/modules/home/components/widget/data-key-config.component.ts b/ui-ngx/src/app/modules/home/components/widget/data-key-config.component.ts
index fde4b1a32f..a4187d9b6c 100644
--- a/ui-ngx/src/app/modules/home/components/widget/data-key-config.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/data-key-config.component.ts
@@ -36,7 +36,7 @@ import { EntityService } from '@core/http/entity.service';
 import { DataKeysCallbacks } from '@home/components/widget/data-keys.component.models';
 import { DataKeyType } from '@shared/models/telemetry/telemetry.models';
 import { Observable, of } from 'rxjs';
-import { map, mergeMap, tap } from 'rxjs/operators';
+import { map, mergeMap, publishReplay, refCount, tap } from 'rxjs/operators';
 import { alarmFields } from '@shared/models/alarm.models';
 import { JsFuncComponent } from '@shared/components/js-func.component';
 import { JsonFormComponentData } from '@shared/components/json-form/json-form-component.models';
@@ -95,6 +95,7 @@ export class DataKeyConfigComponent extends PageComponent implements OnInit, Con
 
   filteredKeys: Observable<Array<string>>;
   private latestKeySearchResult: Array<string> = null;
+  private fetchObservable$: Observable<Array<string>> = null;
 
   keySearchText = '';
 
@@ -205,31 +206,42 @@ export class DataKeyConfigComponent extends PageComponent implements OnInit, Con
   }
 
   private fetchKeys(searchText?: string): Observable<Array<string>> {
-    if (this.latestKeySearchResult === null || this.keySearchText !== searchText) {
+    if (this.keySearchText !== searchText || this.latestKeySearchResult === null) {
       this.keySearchText = searchText;
-      let fetchObservable: Observable<Array<DataKey>> = null;
+      const dataKeyFilter = this.createKeyFilter(this.keySearchText);
+      return this.getKeys().pipe(
+        map(name => name.filter(dataKeyFilter)),
+        tap(res => this.latestKeySearchResult = res)
+      );
+    }
+    return of(this.latestKeySearchResult);
+  }
+
+  private getKeys() {
+    if (this.fetchObservable$ === null) {
+      let fetchObservable: Observable<Array<DataKey>>;
       if (this.modelValue.type === DataKeyType.alarm) {
-        const dataKeyFilter = this.createDataKeyFilter(this.keySearchText);
-        fetchObservable = of(this.alarmKeys.filter(dataKeyFilter));
+        fetchObservable = of(this.alarmKeys);
       } else {
         if (this.entityAliasId) {
           const dataKeyTypes = [this.modelValue.type];
-          fetchObservable = this.callbacks.fetchEntityKeys(this.entityAliasId, this.keySearchText, dataKeyTypes);
+          fetchObservable = this.callbacks.fetchEntityKeys(this.entityAliasId, dataKeyTypes);
         } else {
           fetchObservable = of([]);
         }
       }
-      return fetchObservable.pipe(
+      this.fetchObservable$ = fetchObservable.pipe(
         map((dataKeys) => dataKeys.map((dataKey) => dataKey.name)),
-        tap(res => this.latestKeySearchResult = res)
+        publishReplay(1),
+        refCount()
       );
     }
-    return of(this.latestKeySearchResult);
+    return this.fetchObservable$;
   }
 
-  private createDataKeyFilter(query: string): (key: DataKey) => boolean {
+  private createKeyFilter(query: string): (key: string) => boolean {
     const lowercaseQuery = query.toLowerCase();
-    return key => key.name.toLowerCase().indexOf(lowercaseQuery) === 0;
+    return key => key.toLowerCase().startsWith(lowercaseQuery);
   }
 
   public validateOnSubmit() {
diff --git a/ui-ngx/src/app/modules/home/components/widget/data-keys.component.models.ts b/ui-ngx/src/app/modules/home/components/widget/data-keys.component.models.ts
index 452e390faa..f5a937a4be 100644
--- a/ui-ngx/src/app/modules/home/components/widget/data-keys.component.models.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/data-keys.component.models.ts
@@ -20,5 +20,5 @@ import { Observable } from 'rxjs';
 
 export interface DataKeysCallbacks {
   generateDataKey: (chip: any, type: DataKeyType) => DataKey;
-  fetchEntityKeys: (entityAliasId: string, query: string, types: Array<DataKeyType>) => Observable<Array<DataKey>>;
+  fetchEntityKeys: (entityAliasId: string, types: Array<DataKeyType>) => Observable<Array<DataKey>>;
 }
diff --git a/ui-ngx/src/app/modules/home/components/widget/data-keys.component.ts b/ui-ngx/src/app/modules/home/components/widget/data-keys.component.ts
index 22c9663be8..e31ad036c9 100644
--- a/ui-ngx/src/app/modules/home/components/widget/data-keys.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/data-keys.component.ts
@@ -38,7 +38,7 @@ import {
     Validators
 } from '@angular/forms';
 import { Observable, of } from 'rxjs';
-import { filter, map, mergeMap, share, tap } from 'rxjs/operators';
+import { filter, map, mergeMap, publishReplay, refCount, share, tap } from 'rxjs/operators';
 import { Store } from '@ngrx/store';
 import { AppState } from '@app/core/core.state';
 import { TranslateService } from '@ngx-translate/core';
@@ -142,6 +142,7 @@ export class DataKeysComponent implements ControlValueAccessor, OnInit, AfterVie
 
   searchText = '';
   private latestSearchTextResult: Array<DataKey> = null;
+  private fetchObservable$: Observable<Array<DataKey>> = null;
 
   private dirty = false;
 
@@ -260,6 +261,7 @@ export class DataKeysComponent implements ControlValueAccessor, OnInit, AfterVie
       if (!change.firstChange && change.currentValue !== change.previousValue) {
         if (propName === 'entityAliasId') {
           this.searchText = '';
+          this.fetchObservable$ = null;
           this.latestSearchTextResult = null;
           this.dirty = true;
         } else if (['widgetType', 'datasourceType'].includes(propName)) {
@@ -405,14 +407,24 @@ export class DataKeysComponent implements ControlValueAccessor, OnInit, AfterVie
     return key ? key.name : undefined;
   }
 
-  fetchKeys(searchText?: string): Observable<Array<DataKey>> {
-    if (this.latestSearchTextResult === null || this.searchText !== searchText) {
+  private fetchKeys(searchText?: string): Observable<Array<DataKey>> {
+    if (this.searchText !== searchText || this.latestSearchTextResult === null) {
       this.searchText = searchText;
-      let fetchObservable: Observable<Array<DataKey>> = null;
+      const dataKeyFilter = this.createDataKeyFilter(this.searchText);
+      return this.getKeys().pipe(
+        map(name => name.filter(dataKeyFilter)),
+        tap(res => this.latestSearchTextResult = res)
+      );
+    }
+    return of(this.latestSearchTextResult);
+  }
+
+  private getKeys(): Observable<Array<DataKey>> {
+    if (this.fetchObservable$ === null) {
+      let fetchObservable: Observable<Array<DataKey>>;
       if (this.datasourceType === DatasourceType.function) {
-        const dataKeyFilter = this.createDataKeyFilter(this.searchText);
         const targetKeysList = this.widgetType === widgetType.alarm ? this.alarmKeys : this.functionTypeKeys;
-        fetchObservable = of(targetKeysList.filter(dataKeyFilter));
+        fetchObservable = of(targetKeysList);
       } else {
         if (this.entityAliasId) {
           const dataKeyTypes = [DataKeyType.timeseries];
@@ -420,24 +432,25 @@ export class DataKeysComponent implements ControlValueAccessor, OnInit, AfterVie
             dataKeyTypes.push(DataKeyType.attribute);
             dataKeyTypes.push(DataKeyType.entityField);
             if (this.widgetType === widgetType.alarm) {
-                dataKeyTypes.push(DataKeyType.alarm);
+              dataKeyTypes.push(DataKeyType.alarm);
             }
           }
-          fetchObservable = this.callbacks.fetchEntityKeys(this.entityAliasId, this.searchText, dataKeyTypes);
+          fetchObservable = this.callbacks.fetchEntityKeys(this.entityAliasId, dataKeyTypes);
         } else {
           fetchObservable = of([]);
         }
       }
-      return fetchObservable.pipe(
-        tap(res => this.latestSearchTextResult = res)
+      this.fetchObservable$ = fetchObservable.pipe(
+        publishReplay(1),
+        refCount()
       );
     }
-    return of(this.latestSearchTextResult);
+    return this.fetchObservable$;
   }
 
   private createDataKeyFilter(query: string): (key: DataKey) => boolean {
     const lowercaseQuery = query.toLowerCase();
-    return key => key.name.toLowerCase().indexOf(lowercaseQuery) === 0;
+    return key => key.name.toLowerCase().startsWith(lowercaseQuery);
   }
 
   textIsNotEmpty(text: string): boolean {
diff --git a/ui-ngx/src/app/modules/home/components/widget/lib/maps/leaflet-map.ts b/ui-ngx/src/app/modules/home/components/widget/lib/maps/leaflet-map.ts
index 6b903101ad..5430aa2e69 100644
--- a/ui-ngx/src/app/modules/home/components/widget/lib/maps/leaflet-map.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/lib/maps/leaflet-map.ts
@@ -608,26 +608,32 @@ export default abstract class LeafletMap {
       return polygon;
     }
 
-    updatePoints(pointsData: FormattedData[], getTooltip: (point: FormattedData, setTooltip?: boolean) => string) {
+  updatePoints(pointsData: FormattedData[][], getTooltip: (point: FormattedData) => string) {
+    if(pointsData.length) {
       if (this.points) {
-          this.map.removeLayer(this.points);
+        this.map.removeLayer(this.points);
       }
       this.points = new FeatureGroup();
-      pointsData.filter(pdata => !!this.convertPosition(pdata)).forEach(data => {
-          const point = L.circleMarker(this.convertPosition(data), {
-              color: this.options.pointColor,
-              radius: this.options.pointSize
-          });
-          if (!this.options.pointTooltipOnRightPanel) {
-              point.on('click', () => getTooltip(data));
-          }
-          else {
-              createTooltip(point, this.options, data.$datasource, getTooltip(data, false));
-          }
-          this.points.addLayer(point);
+    }
+    for(let i = 0; i < pointsData.length; i++) {
+      const pointsList = pointsData[i];
+      pointsList.filter(pdata => !!this.convertPosition(pdata)).forEach(data => {
+        const point = L.circleMarker(this.convertPosition(data), {
+          color: this.options.pointColor,
+          radius: this.options.pointSize
+        });
+        if (!this.options.pointTooltipOnRightPanel) {
+          point.on('click', () => getTooltip(data));
+        } else {
+          createTooltip(point, this.options, data.$datasource, getTooltip(data));
+        }
+        this.points.addLayer(point);
       });
+    }
+    if(pointsData.length) {
       this.map.addLayer(this.points);
     }
+  }
 
     // Polyline
 
diff --git a/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.html b/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.html
index 2ea80cf2af..6264231b68 100644
--- a/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.html
+++ b/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.html
@@ -28,8 +28,12 @@
             </button>
         </div>
         <div class="trip-animation-tooltip md-whiteframe-z4" fxLayout="column"
-            [ngClass]="{'trip-animation-tooltip-hidden':!visibleTooltip}" [innerHTML]="mainTooltip"
-            [ngStyle]="{'background-color': settings.tooltipColor, 'opacity': settings.tooltipOpacity, 'color': settings.tooltipFontColor}">
+             [ngClass]="{'trip-animation-tooltip-hidden':!visibleTooltip}"
+             [ngStyle]="{'background-color': settings.tooltipColor, 'opacity': settings.tooltipOpacity, 'color': settings.tooltipFontColor}">
+          <div *ngFor="let mainTooltip of mainTooltips"
+               [innerHTML]="mainTooltip"
+               style="padding: 10px 0">
+          </div>
         </div>
     </div>
   <tb-history-selector *ngIf="historicalData"
diff --git a/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.scss b/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.scss
index cdb28f8a27..b1a49da9fb 100644
--- a/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.scss
+++ b/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.scss
@@ -73,6 +73,9 @@
     }
 
     .trip-animation-tooltip {
+      display: flex;
+      overflow: auto;
+      max-height: 90%;
       position: absolute;
       top: 30px;
       right: 0;
@@ -86,4 +89,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.ts b/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.ts
index 99c399d3f2..8de3269bb0 100644
--- a/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/trip-animation/trip-animation.component.ts
@@ -47,6 +47,9 @@ import moment from 'moment';
 import { isUndefined } from '@core/utils';
 import { ResizeObserver } from '@juggle/resize-observer';
 
+interface dataMap {
+  [key: string] : FormattedData
+}
 
 @Component({
   // tslint:disable-next-line:component-selector
@@ -70,7 +73,7 @@ export class TripAnimationComponent implements OnInit, AfterViewInit, OnDestroy
   interpolatedTimeData = [];
   widgetConfig: WidgetConfig;
   settings: TripAnimationSettings;
-  mainTooltip = '';
+  mainTooltips = [];
   visibleTooltip = false;
   activeTrip: FormattedData;
   label: string;
@@ -115,7 +118,7 @@ export class TripAnimationComponent implements OnInit, AfterViewInit, OnDestroy
       this.historicalData = parseArray(this.ctx.data).filter(arr => arr.length);
       if (this.historicalData.length) {
         this.calculateIntervals();
-        this.timeUpdated(this.currentTime && this.currentTime > this.minTime ? this.currentTime : this.minTime);
+        this.timeUpdated(this.minTime);
       }
       this.mapWidget.map.map?.invalidateSize();
       this.cd.detectChanges();
@@ -140,32 +143,39 @@ export class TripAnimationComponent implements OnInit, AfterViewInit, OnDestroy
     this.currentTime = time;
     const currentPosition = this.interpolatedTimeData
       .map(dataSource => dataSource[time])
-      .filter(ds => ds);
-    if (isUndefined(currentPosition[0])) {
-      const timePoints = Object.keys(this.interpolatedTimeData[0]).map(item => parseInt(item, 10));
-      for (let i = 1; i < timePoints.length; i++) {
-        if (timePoints[i - 1] < time && timePoints[i] > time) {
-          const beforePosition = this.interpolatedTimeData[0][timePoints[i - 1]];
-          const afterPosition = this.interpolatedTimeData[0][timePoints[i]];
-          const ratio = getRatio(timePoints[i - 1], timePoints[i], time);
-          currentPosition[0] = {
-            ...beforePosition,
-            time,
-            ...interpolateOnLineSegment(beforePosition, afterPosition, this.settings.latKeyName, this.settings.lngKeyName, ratio)
+    for(let j = 0; j < this.interpolatedTimeData.length; j++) {
+      if (isUndefined(currentPosition[j])) {
+        const timePoints = Object.keys(this.interpolatedTimeData[j]).map(item => parseInt(item, 10));
+        for (let i = 1; i < timePoints.length; i++) {
+          if (timePoints[i - 1] < time && timePoints[i] > time) {
+            const beforePosition = this.interpolatedTimeData[j][timePoints[i - 1]];
+            const afterPosition = this.interpolatedTimeData[j][timePoints[i]];
+            const ratio = getRatio(timePoints[i - 1], timePoints[i], time);
+            currentPosition[j] = {
+              ...beforePosition,
+              time,
+              ...interpolateOnLineSegment(beforePosition, afterPosition, this.settings.latKeyName, this.settings.lngKeyName, ratio)
+            }
+            break;
           }
-          break;
         }
       }
     }
+    for(let j = 0; j < this.interpolatedTimeData.length; j++) {
+      if (isUndefined(currentPosition[j])) {
+        currentPosition[j] = this.calculateLastPoints(this.interpolatedTimeData[j], time);
+      }
+    }
     this.calcLabel();
-    this.calcTooltip(currentPosition.find(position => position.entityName === this.activeTrip.entityName));
+    this.calcMainTooltip(currentPosition);
     if (this.mapWidget && this.mapWidget.map && this.mapWidget.map.map) {
-      this.mapWidget.map.updatePolylines(this.interpolatedTimeData.map(ds => _.values(ds)), true, this.activeTrip);
+      const formattedInterpolatedTimeData = this.interpolatedTimeData.map(ds => _.values(ds));
+      this.mapWidget.map.updatePolylines(formattedInterpolatedTimeData, true);
       if (this.settings.showPolygon) {
         this.mapWidget.map.updatePolygons(this.interpolatedTimeData);
       }
       if (this.settings.showPoints) {
-        this.mapWidget.map.updatePoints(_.values(_.union(this.interpolatedTimeData)[0]), this.calcTooltip);
+        this.mapWidget.map.updatePoints(formattedInterpolatedTimeData.map(ds => _.union(ds)), this.calcTooltip);
       }
       this.mapWidget.map.updateMarkers(currentPosition, true, (trip) => {
         this.activeTrip = trip;
@@ -177,6 +187,23 @@ export class TripAnimationComponent implements OnInit, AfterViewInit, OnDestroy
   setActiveTrip() {
   }
 
+  private calculateLastPoints(dataSource: dataMap, time: number): FormattedData {
+    const timeArr = Object.keys(dataSource);
+    let index = timeArr.findIndex((dtime, index) => {
+      return Number(dtime) >= time;
+    });
+
+    if(index !== -1) {
+      if(Number(timeArr[index]) !== time && index !== 0) {
+        index--;
+      }
+    } else {
+      index = timeArr.length - 1;
+    }
+
+    return dataSource[timeArr[index]];
+  }
+
   calculateIntervals() {
     this.historicalData.forEach((dataSource, index) => {
       this.minTime = dataSource[0]?.time || Infinity;
@@ -194,16 +221,19 @@ export class TripAnimationComponent implements OnInit, AfterViewInit, OnDestroy
     }
   }
 
-  calcTooltip = (point?: FormattedData): string => {
+  calcTooltip = (point: FormattedData): string => {
     const data = point ? point : this.activeTrip;
     const tooltipPattern: string = this.settings.useTooltipFunction ?
       safeExecute(this.settings.tooltipFunction, [data, this.historicalData, point.dsIndex]) : this.settings.tooltipPattern;
-    const tooltipText = parseWithTranslation.parseTemplate(tooltipPattern, data, true);
-    this.mainTooltip = this.sanitizer.sanitize(
-      SecurityContext.HTML, tooltipText);
-    this.cd.detectChanges();
-    this.activeTrip = point;
-    return tooltipText;
+    return parseWithTranslation.parseTemplate(tooltipPattern, data, true);
+  }
+
+  private calcMainTooltip(points: FormattedData[]): void {
+    const tooltips = [];
+    for (let point of points) {
+      tooltips.push(this.sanitizer.sanitize(SecurityContext.HTML, this.calcTooltip(point)));
+    }
+    this.mainTooltips = tooltips;
   }
 
   calcLabel() {
diff --git a/ui-ngx/src/app/modules/home/components/widget/widget-config.component.ts b/ui-ngx/src/app/modules/home/components/widget/widget-config.component.ts
index ba8cdaf5d2..b1984f997a 100644
--- a/ui-ngx/src/app/modules/home/components/widget/widget-config.component.ts
+++ b/ui-ngx/src/app/modules/home/components/widget/widget-config.component.ts
@@ -54,13 +54,13 @@ import { UtilsService } from '@core/services/utils.service';
 import { DataKeyType } from '@shared/models/telemetry/telemetry.models';
 import { TranslateService } from '@ngx-translate/core';
 import { EntityType } from '@shared/models/entity-type.models';
-import { forkJoin, Observable, of, Subscription } from 'rxjs';
+import { Observable, of, Subscription } from 'rxjs';
 import { WidgetConfigCallbacks } from '@home/components/widget/widget-config.component.models';
 import {
   EntityAliasDialogComponent,
   EntityAliasDialogData
 } from '@home/components/alias/entity-alias-dialog.component';
-import { catchError, map, mergeMap, tap } from 'rxjs/operators';
+import { catchError, mergeMap, tap } from 'rxjs/operators';
 import { MatDialog } from '@angular/material/dialog';
 import { EntityService } from '@core/http/entity.service';
 import { JsonFormComponentData } from '@shared/components/json-form/json-form-component.models';
@@ -792,54 +792,16 @@ export class WidgetConfigComponent extends PageComponent implements OnInit, Cont
     );
   }
 
-  private fetchEntityKeys(entityAliasId: string, query: string, dataKeyTypes: Array<DataKeyType>): Observable<Array<DataKey>> {
-    return this.aliasController.resolveSingleEntityInfo(entityAliasId).pipe(
-      mergeMap((entity) => {
-        if (entity) {
-          const fetchEntityTasks: Array<Observable<Array<DataKey>>> = [];
-          for (const dataKeyType of dataKeyTypes) {
-            fetchEntityTasks.push(
-              this.entityService.getEntityKeys(
-                {entityType: entity.entityType, id: entity.id},
-                query,
-                dataKeyType,
-                {ignoreLoading: true, ignoreErrors: true}
-              ).pipe(
-                map((keys) => {
-                  const dataKeys: Array<DataKey> = [];
-                  for (const key of keys) {
-                    dataKeys.push({name: key, type: dataKeyType});
-                  }
-                  return dataKeys;
-                }
-                ),
-                catchError(() => of([]))
-            ));
-          }
-          return forkJoin(fetchEntityTasks).pipe(
-            map(arrayOfDataKeys => {
-              const result = new Array<DataKey>();
-              arrayOfDataKeys.forEach((dataKeyArray) => {
-                result.push(...dataKeyArray);
-              });
-              return result;
-            }
-          ));
-        } else if (dataKeyTypes.includes(DataKeyType.alarm)) {
-          return this.entityService.getEntityKeys(null, query, DataKeyType.alarm).pipe(
-            map((keys) => {
-                const dataKeys: Array<DataKey> = [];
-                for (const key of keys) {
-                  dataKeys.push({name: key, type: DataKeyType.alarm});
-                }
-                return dataKeys;
-              }
-            ),
-            catchError(() => of([]))
-          );
-        } else {
-          return of([]);
-        }
+  private fetchEntityKeys(entityAliasId: string, dataKeyTypes: Array<DataKeyType>): Observable<Array<DataKey>> {
+    return this.aliasController.getAliasInfo(entityAliasId).pipe(
+      mergeMap((aliasInfo) => {
+        return this.entityService.getEntityKeysByEntityFilter(
+          aliasInfo.entityFilter,
+          dataKeyTypes,
+          {ignoreLoading: true, ignoreErrors: true}
+        ).pipe(
+          catchError(() => of([]))
+        );
       }),
       catchError(() => of([] as Array<DataKey>))
     );
diff --git a/ui-ngx/src/app/shared/models/entity.models.ts b/ui-ngx/src/app/shared/models/entity.models.ts
index 8f1d4f417e..300de484c1 100644
--- a/ui-ngx/src/app/shared/models/entity.models.ts
+++ b/ui-ngx/src/app/shared/models/entity.models.ts
@@ -64,6 +64,12 @@ export interface EntityField {
   time?: boolean;
 }
 
+export interface EntitiesKeysByQuery {
+  attribute: Array<string>;
+  timeseries: Array<string>;
+  entityTypes: EntityType[];
+}
+
 export const entityFields: {[fieldName: string]: EntityField} = {
   createdTime: {
     keyName: 'createdTime',