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https://issues.apache.org/jira/browse/HDFS-13791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chen Liang updated HDFS-13791:
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Resolution: Fixed
Fix Version/s: HDFS-12943
Status: Resolved (was: Patch Available)
> Limit logging frequency of edit tail related statements
> -------------------------------------------------------
>
> Key: HDFS-13791
> URL: https://issues.apache.org/jira/browse/HDFS-13791
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs, qjm
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Major
> Fix For: HDFS-12943
>
> Attachments: HDFS-13791-HDFS-12943.000.patch,
> HDFS-13791-HDFS-12943.001.patch, HDFS-13791-HDFS-12943.002.patch,
> HDFS-13791-HDFS-12943.003.patch, HDFS-13791-HDFS-12943.004.patch,
> HDFS-13791-HDFS-12943.005.patch, HDFS-13791-HDFS-12943.006.patch
>
>
> There are a number of log statements that occur every time new edits are
> tailed by a Standby NameNode. When edits are tailing only on the order of
> every tens of seconds, this is fine. With the work in HDFS-13150, however,
> edits may be tailed every few milliseconds, which can flood the logs with
> tailing-related statements. We should throttle it to limit it to printing at
> most, say, once per 5 seconds.
> We can implement logic similar to that used in HDFS-10713. This may be
> slightly more tricky since the log statements are distributed across a few
> classes.
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