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https://issues.apache.org/jira/browse/HDFS-2866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13198461#comment-13198461
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Aaron T. Myers commented on HDFS-2866:
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bq. I (we) are not convinced that having fsimage in a shared location is a bad
idea. This issue can happen with local edit dirs having a gap in txid with
respect to shared edit dirs.
OK. Please let us know your reasoning.
bq. Please leave the jiras open until we get a chance to think this through.
Maybe we can close one as a dupe but not the other, since they're really the
same underlying issue? Or perhaps close them both but open a new one along the
lines of "HA: Should we have a shared directory with an fsimage?" I just don't
want to have to one conversation split between two JIRAs.
> Standby does not start up due to a gap in transaction id
> --------------------------------------------------------
>
> Key: HDFS-2866
> URL: https://issues.apache.org/jira/browse/HDFS-2866
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Hari Mankude
> Priority: Critical
>
> Standby notices a gap in the transaction id in the shared.edits directory.
> The transactions in dfs.edits.dir does not seem to have the gap. The gap
> happens during a failover.
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