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Posted to hdfs-issues@hadoop.apache.org by "farmmamba (Jira)" <ji...@apache.org> on 2023/07/27 01:41:00 UTC

[jira] [Assigned] (HDFS-17126) FsDataSetImpl#checkAndUpdate should delete duplicated block meta file.

     [ https://issues.apache.org/jira/browse/HDFS-17126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

farmmamba reassigned HDFS-17126:
--------------------------------

    Assignee: farmmamba

> FsDataSetImpl#checkAndUpdate should delete duplicated block meta file.
> ----------------------------------------------------------------------
>
>                 Key: HDFS-17126
>                 URL: https://issues.apache.org/jira/browse/HDFS-17126
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>    Affects Versions: 3.4.0
>            Reporter: farmmamba
>            Assignee: farmmamba
>            Priority: Major
>
> Think about below case :
> We have one datanode called dn1,   it has two storages call ds1 and ds2 respectively.
> Suppose we have blk_123 and blk_123_1001.meta in ds1 and blk_123_1001.meta in ds2.
> The current logic will not handle the file blk_123_1001.meta in ds2 and only prints logs to tell us DirectoryScanner scan missing block files.
> I think we should do something here.



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