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https://issues.apache.org/jira/browse/HIVE-26121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Denys Kuzmenko updated HIVE-26121:
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Description:
When Hive query is being interrupted via cancel request, both the background
pool thread (HiveServer2-Background) executing the query and the HttpHandler
thread (HiveServer2-Handler) running the HiveSession.cancelOperation logic will
eventually trigger the below method:
{code}
DriverTxnHandler.endTransactionAndCleanup(boolean commit)
{code}
Since this method could be invoked concurrently we need to synchronize access
to it, so that only 1 thread would attempt to abort the transaction and stop
the heartbeat.
was:
When Hive query is being interrupted via cancel request, both the background
pool thread (HiveServer2-Background) executing the query and the HttpHandler
thread (HiveServer2-Handler) running the HiveSession.cancelOperation logic will
eventually trigger the below method:
{code}
DriverTxnHandler.endTransactionAndCleanup(boolean commit)
{code}
Since this method could be invoked concurrently we need to synchronize access
to it, so that one 1 thread would abort the transaction and stop the heartbeat.
> Hive transaction rollback should be thread-safe
> -----------------------------------------------
>
> Key: HIVE-26121
> URL: https://issues.apache.org/jira/browse/HIVE-26121
> Project: Hive
> Issue Type: Task
> Reporter: Denys Kuzmenko
> Priority: Major
>
> When Hive query is being interrupted via cancel request, both the background
> pool thread (HiveServer2-Background) executing the query and the HttpHandler
> thread (HiveServer2-Handler) running the HiveSession.cancelOperation logic
> will eventually trigger the below method:
> {code}
> DriverTxnHandler.endTransactionAndCleanup(boolean commit)
> {code}
> Since this method could be invoked concurrently we need to synchronize access
> to it, so that only 1 thread would attempt to abort the transaction and stop
> the heartbeat.
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