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https://issues.apache.org/jira/browse/HDFS-15887?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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JiangHua Zhu updated HDFS-15887:
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Summary: Make LogRoll and TailEdits execute in parallel (was: Solve the
uneven rolling edit log file)
> Make LogRoll and TailEdits execute in parallel
> ----------------------------------------------
>
> Key: HDFS-15887
> URL: https://issues.apache.org/jira/browse/HDFS-15887
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: JiangHua Zhu
> Assignee: JiangHua Zhu
> Priority: Major
> Attachments: edit_files.jpg
>
>
> When checkpoint action and roll edit log action occur at the same time, the
> generated edit file will be larger, which is unfavorable for the tail edit
> file.
> For example, here is an actual effect:
> The StandbyCheckpointer log is triggered as follows : edit_files.jpg
> 2021-03-11 09:18:42,513 [769071096]-INFO [Standby State
> Checkpointer:StandbyCheckpointer$CheckpointerThread@335]-Triggering
> checkpoint because there have been 5142154 txns since the last checkpoint,
> which exceeds the configured threshold 1000000
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