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https://issues.apache.org/jira/browse/HDFS-13928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan updated HDFS-13928:
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    Target Version/s: 3.5.0  (was: 3.4.1)

> Add the corner case testings for log roll
> -----------------------------------------
>
>                 Key: HDFS-13928
>                 URL: https://issues.apache.org/jira/browse/HDFS-13928
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 3.1.1
>            Reporter: Yiqun Lin
>            Priority: Major
>
> We find some corner cases for log roll when doing jounalnode migration in our 
> cluster. We use a online way for the migration. And there will cause some 
> corner cases:
>  * Multiple in-progress  edits_inprogress* files exists in edits dir, if log 
> roll is updated correctly. In this case, we can divide this into two cases:
>  1.With redundant in-progress file with higher txid than current in-progress 
> file
>  2.With redundant in-progress file with lower txid than current in-progress 
> file
>  * In a HA mode, SBN is down, what's the behavior of log roll will become?
> We can complete the log roll UTs for above cases.



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