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Posted to hdfs-dev@hadoop.apache.org by "Takanobu Asanuma (Jira)" <ji...@apache.org> on 2023/03/27 10:05:00 UTC

[jira] [Resolved] (HDFS-16958) EC: Fix bug in processing EC excess redundancy

     [ https://issues.apache.org/jira/browse/HDFS-16958?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Takanobu Asanuma resolved HDFS-16958.
-------------------------------------
    Resolution: Not A Problem

> EC: Fix bug in processing EC excess redundancy 
> -----------------------------------------------
>
>                 Key: HDFS-16958
>                 URL: https://issues.apache.org/jira/browse/HDFS-16958
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Shuyan Zhang
>            Assignee: Shuyan Zhang
>            Priority: Major
>              Labels: pull-request-available
>
> When processing excess redundancy, the number of internal blocks is computed by traversing `nonExcess`. This way is not accurate, because `nonExcess` excludes replicas in abnormal states, such as corrupt ones, or maintenance ones. `numOfTarget` may be smaller than the actual value, which will result in inaccurate generated `excessTypes`.



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