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https://issues.apache.org/jira/browse/HDFS-3020?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-3020:
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Attachment: hdfs-3020.txt
The spying I did on trunk didn't work for branch-23. Updated patch spys on
metrics instead of the stream itself, which applies to both 23 and trunk. The
code's otherwise the same.
> Auto-logSync based on edit log buffer size broken
> -------------------------------------------------
>
> Key: HDFS-3020
> URL: https://issues.apache.org/jira/browse/HDFS-3020
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.22.0, 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
> Attachments: hdfs-3020.txt, hdfs-3020.txt, hdfs-3020.txt
>
>
> HDFS-1112 added a feature whereby the edit log automatically calls logSync()
> if the buffered data crosses a threshold. However, the code checks
> {{bufReady.size()}} rather than {{bufCurrent.size()}} -- which is incorrect
> since the writes themselves go into {{bufCurrent}}.
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