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https://issues.apache.org/jira/browse/HDFS-10722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15623785#comment-15623785
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Zhe Zhang commented on HDFS-10722:
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Thanks for the work Daryn. I just backported to branch-2.8.
> Fix race condition in TestEditLog#testBatchedSyncWithClosedLogs
> ---------------------------------------------------------------
>
> Key: HDFS-10722
> URL: https://issues.apache.org/jira/browse/HDFS-10722
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 2.8.0, 3.0.0-alpha1, 2.8
>
> Attachments: HDFS-10722.patch
>
>
> The test may fail the following assertion if async edit logs are enabled:
> {{logging edit without syncing should do not affect txid expected:<1> but
> was:<2>}}. The async thread is doing batched syncs in the background.
> logSync just ensures the edit is durable, so the txid may increase prior to
> sync. It's a race.
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