Todd Lipcon created KUDU-1678:
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Summary: Race during abort of pending operations during raft
shutdown
Key: KUDU-1678
URL: https://issues.apache.org/jira/browse/KUDU-1678
Project: Kudu
Issue Type: Bug
Components: consensus
Affects Versions: 1.0.0
Reporter: Todd Lipcon
I'm seeing the following race occasionally in alter_table-randomized-test:
- a follower tablet is shutting down while some operations are pending. The
first operation is an ALTER_TABLE, and the second is a WRITE which depends on
the ALTER (i.e includes the new column)
- we cancel the ALTER successfully, and then the thread gets de-scheduled
- the PrepareTask for the WRITE runs before we're able to cancel it. It then
fails to prepare because the alter it depends on has not completed
It seems like we should probably cancel the pending operations in reverse order.
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