Adar Dembo created KUDU-2109:
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Summary: TabletCopyClientSessionITest.TestCopyFromCrashedSource is
flaky
Key: KUDU-2109
URL: https://issues.apache.org/jira/browse/KUDU-2109
Project: Kudu
Issue Type: Bug
Components: tserver
Affects Versions: 1.4.0
Reporter: Adar Dembo
Attachments: 0_tablet_copy_client_session-itest.txt
I've attached the full log from my test failure.
I think I've found the issue too: the test assumes that if it finds an on-disk
superblock in the TOMBSTONED state, the failed tablet copy has finished and
it's safe to start another one. However, in TSTabletManager::RunTabletCopy,
'tc_client' goes out of scope before 'deleter', which means that the
TabletCopyClient destructor (which deletes the on-disk data, flushing the
superblock in the TOMBSTONED state) will run before the TransitionInProgress
destructor (which removes the tablet's ID from the global map tracking
transitions, allowing a new tablet copy to proceed).
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