Jackie-Jiang commented on a change in pull request #7886:
URL: https://github.com/apache/pinot/pull/7886#discussion_r766089149
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File path:
pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/RealtimeTableDataManager.java
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@@ -340,9 +340,18 @@ public void addSegment(String segmentName, TableConfig
tableConfig, IndexLoading
PartitionUpsertMetadataManager partitionUpsertMetadataManager =
_tableUpsertMetadataManager != null ? _tableUpsertMetadataManager
.getOrCreatePartitionManager(partitionGroupId) : null;
- segmentDataManager =
- new LLRealtimeSegmentDataManager(segmentZKMetadata, tableConfig,
this, _indexDir.getAbsolutePath(),
- indexLoadingConfig, schema, llcSegmentName, semaphore,
_serverMetrics, partitionUpsertMetadataManager);
+ try {
+ segmentDataManager =
+ new LLRealtimeSegmentDataManager(segmentZKMetadata, tableConfig,
this, _indexDir.getAbsolutePath(),
+ indexLoadingConfig, schema, llcSegmentName, semaphore,
_serverMetrics, partitionUpsertMetadataManager);
+ } catch (Exception e) {
+ // In case of exception thrown here, segment goes to ERROR state. Then
any attempt to reset the segment from
+ // ERROR -> OFFLINE -> CONSUMING via Helix Admin fails because the
semaphore never gets released and the
+ // semaphore.acquire() is called in constructor of
LLRealtimeSegmentDataManager. Hence releasing the semaphore
+ // here to unblock reset operation via Helix Admin.
+ semaphore.release();
+ throw e;
Review comment:
The `release()` should be handled within the constructor when it throws
the exception. The problem of handling it here is that there is no guarantee
`acquire()` is already called within the constructor
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