Relax version check to allow maintenance digit increases within the same
LTS family (e.g. 4.3.0 -> 4.3.1), not just patch digit increases.
Add LTS SQL schema patch execution from upgrade/lts/schema_update.sql,
running before views and widget updates so schema changes are in place
for dependent objects.
Replace the blocking semaphore guard with a non-blocking bounded FIFO queue
+ semaphore pattern:
- No semaphore/queue when maxParallelRequestsCount=0 (default): direct doHttpCall,
identical to the old behavior.
- When a concurrency limit is set, incoming messages are enqueued via non-blocking
offer(); a full queue triggers onFailure immediately.
- tryProcess() acquires one semaphore slot and dispatches the next valid queued task.
Stale tasks (batch deadline expired) are dropped and the slot reused in the same pass.
- doFinally hook releases the semaphore and calls tryProcess() exactly once after any
terminal signal (success, error, cancel), preventing double-release and permit leaks.
- publishOn(externalCallExecutor) moves callbacks off reactor-netty I/O threads.
System-level safety caps are wired through thingsboard.yml → ActorSystemContext →
TbContext → TbHttpClient, scoped to rule-engine services only via @TbRuleEngineComponent:
actors.rule.external.http_client.max_parallel_requests (ACTORS_RULE_EXTERNAL_HTTP_CLIENT_MAX_PARALLEL_REQUESTS)
actors.rule.external.http_client.max_pending_requests (ACTORS_RULE_EXTERNAL_HTTP_CLIENT_MAX_PENDING_REQUESTS)
actors.rule.external.http_client.pool_max_connections (ACTORS_RULE_EXTERNAL_HTTP_CLIENT_POOL_MAX_CONNECTIONS)
Backward compat: TB_RE_HTTP_CLIENT_POOL_MAX_CONNECTIONS still honored via yaml fallback.
Observability: five AtomicLong counters (dispatched, success, failure, droppedQueueFull,
droppedStale) with periodic WARN anomaly logging including semaphorePermits for leak detection.
No configuration changes or upgrade scripts required — docker image update is sufficient.
Rename RestApiCallNodeSettings to TbHttpClientSettings
The settings are about HTTP client transport concerns (connection pool,
concurrency, queue depth), not REST API Call node business logic.
The new name matches the consumer (TbHttpClient) and the YAML path
(actors.rule.external.http_client.*).
Removed overflow:hidden from DynamicFormSelectItemsComponent that was hiding the Value/Label table headers and "No options configured" message. Added overflow-visible to nested dynamic-form-properties to prevent clipping in expansion panels.
Add optional roundDown parameter that uses Math.floor instead of
Math.round when abbreviating numbers. This prevents values like
3993979 from rounding up to 4M, showing 3.9M instead.
Also improve typing: replace any with ShortNumberArgs interface
and ensure transform always returns string.
When a NO_DATA filter is present, the condition type control gets
disabled. Angular's FormGroup.value excludes disabled controls,
causing the 'type' field to be omitted from the saved result.
This leads to a JSON parse error on the backend.
Explicitly include the type control value in the save output
while keeping unit/value/count excluded when disabled.
Added IWidgetHttpUtils interface and httpUtils property to WidgetContext
so widget action code can use defaultHttpOptionsFromConfig and related
functions without modifying ThingsBoard source code.
Viacheslav Klimov
Maksym Tsymbarov
Dmytro Skarzhynets
Oleksandra Matviienko
Sergey Matvienko
dashevchenko
Vladyslav_Prykhodko