Caideyipi opened a new pull request, #18342:
URL: https://github.com/apache/iotdb/pull/18342
## Description
Backport #18335 (8d5da83f0dfb33da552606badb2d735d7f21352e) to dev/1.3.
- Use Throwable.toString() for root-cause reporting so exceptions with a
null message still include their exception type.
- Preserve the original throwable as the cause of
PipeRuntimeSinkCriticalException instances.
- Add cause-aware constructors to the Pipe runtime exception hierarchy.
- Add unit coverage for null root-cause messages and preserved cause chains.
The dev/1.3 branch predates the newer master-side Pipe message layer and
PipeSinkSubtask constructor shape, so the conflict resolution retains the
existing 1.3 log templates and API shape while applying the diagnostic and
cause-preservation changes.
## Verification
- PASS: mvn -o -nsu spotless:apply -pl
iotdb-core/node-commons,iotdb-core/datanode
- NOT COMPLETED: mvn -o -nsu -pl iotdb-core/node-commons,iotdb-core/datanode
-Dtest=PipeSinkSubtaskTest -Dsurefire.failIfNoSpecifiedTests=false test
- The local JVM failed native memory allocation in node-commons before the
test executed because system virtual memory was exhausted. CI will validate the
tests.
<hr>
This PR has:
- [x] been self-reviewed.
- [x] added or modified unit tests to cover the new code paths.
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