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https://issues.apache.org/jira/browse/HDFS-13607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16488304#comment-16488304
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Plamen Jeliazkov commented on HDFS-13607:
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Hey [~xkrogen], the reason for the test failure is from the FSEditLogAsync. It
was enabled by default as part of HDFS-12603. I thought it was only enabled if
HA was enabled but it seems to be across the board. All the tests in
TestStateAlignmentContext that write and read are currently flaky as a result.
Nonetheless, because FSEditLogAsync is involved and HDFS-13399 is not committed
those tests are subject to random failures and more likely apparently in the
Jenkins builds.
If you run the build enough times locally you will reproduce this as well. I
would ignore for now. The off by one symptom is the sign of it. Fix is to fix
it in HDFS-13399.
> [Edit Tail Fast Path Pt 1] Enhance JournalNode with an in-memory cache of
> recent edit transactions
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-13607
> URL: https://issues.apache.org/jira/browse/HDFS-13607
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, journal-node
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Major
> Attachments: HDFS-13607-HDFS-12943.000.patch,
> HDFS-13607-HDFS-12943.001.patch
>
>
> See HDFS-13150 for full design.
> This JIRA is to add the in-memory cache of recent edit transactions on the
> JournalNode. This JIRA does not include accesses to this cache.
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