Arjun Mishra created SENTRY-1831:
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Summary: The MetastorePlugin SyncTask is leaking connection
threads when read timed out issues are thrown
Key: SENTRY-1831
URL: https://issues.apache.org/jira/browse/SENTRY-1831
Project: Sentry
Issue Type: Sub-task
Reporter: Arjun Mishra
Fix For: 1.8.0
The MetastorePlugin.SyncTask class is a thread running in the background in the
HMS side that is used to keep HMS/Sentry in sync with HDFS, or any other words,
it pushes a full HMS snapshot to Sentry every time Sentry is out-of-sync.
However when a timed out exception is thrown when sending the snapshot to
Sentry, a retry happens in the next thread run() iteration.
The problem is that these exceptions do not terminate the Thrift thread sending
the data, and a new retry will generate a new Thrift thread be created. We
should close those threads by resetting the connection when an error occurs.
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