Changgyoo Park created SPARK-49660:
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Summary: Cached local relation lookup failure
Key: SPARK-49660
URL: https://issues.apache.org/jira/browse/SPARK-49660
Project: Spark
Issue Type: Bug
Components: Connect
Affects Versions: 4.0.0
Reporter: Changgyoo Park
```
private def transformCachedLocalRelation(rel: proto.CachedLocalRelation):
LogicalPlan = {
val blockManager = session.sparkContext.env.blockManager
val blockId = CacheId(sessionHolder.session.sessionUUID, rel.getHash)
val bytes = blockManager.getLocalBytes(blockId)
bytes
.map { blockData =>
try {
val localRelation = proto.Relation
.newBuilder()
.getLocalRelation
.getParserForType
.parseFrom(blockData.toInputStream())
transformLocalRelation(localRelation)
} finally {
blockManager.releaseLock(blockId)
}
}
.getOrElse {
throw InvalidPlanInput(
s"Not found any cached local relation with the hash: ${blockId.hash}
in " +
s"the session with sessionUUID ${blockId.sessionUUID}.")
}
}
```
=> `blockManager.releaseLock(blockId)` is wrong because locks are released
inside `val bytes = blockManager.getLocalBytes(blockId)`.
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