Added possibility to set max inbound rpc message size

application/src/main/java/org/thingsboard/server/service/edge/rpc/EdgeGrpcService.java

@@ -81,6 +81,8 @@ public class EdgeGrpcService extends EdgeRpcServiceGrpc.EdgeRpcServiceImplBase i
     private boolean persistToTelemetry;
     @Value("${edges.rpc.client_max_keep_alive_time_sec}")
     private int clientMaxKeepAliveTimeSec;
+    @Value("${edges.rpc.max_inbound_message_size:4194304}")
+    private int maxInboundMessageSize;
 
     @Value("${edges.scheduler_pool_size}")
     private int schedulerPoolSize;
@@ -102,6 +104,7 @@ public class EdgeGrpcService extends EdgeRpcServiceGrpc.EdgeRpcServiceImplBase i
         log.info("Initializing Edge RPC service!");
         NettyServerBuilder builder = NettyServerBuilder.forPort(rpcPort)
                 .permitKeepAliveTime(clientMaxKeepAliveTimeSec, TimeUnit.SECONDS)
+                .maxInboundMessageSize(maxInboundMessageSize)
                 .addService(this);
         if (sslEnabled) {
             try {

application/src/main/resources/thingsboard.yml

@@ -705,6 +705,7 @@ edges:
       enabled: "${EDGES_RPC_SSL_ENABLED:false}"
       cert: "${EDGES_RPC_SSL_CERT:certChainFile.pem}"
       private_key: "${EDGES_RPC_SSL_PRIVATE_KEY:privateKeyFile.pem}"
+    max_inbound_message_size: "${INTEGRATIONS_RPC_MAX_INBOUND_MESSAGE_SIZE:4194304}"
   storage:
     max_read_records_count: "${EDGES_STORAGE_MAX_READ_RECORDS_COUNT:50}"
     no_read_records_sleep: "${EDGES_NO_READ_RECORDS_SLEEP:1000}"