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Posted to hdfs-issues@hadoop.apache.org by "Takanobu Asanuma (Jira)" <ji...@apache.org> on 2022/09/23 03:44:00 UTC

[jira] [Resolved] (HDFS-16776) Erasure Coding: The length of targets should be checked when DN gets a reconstruction task

     [ https://issues.apache.org/jira/browse/HDFS-16776?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Takanobu Asanuma resolved HDFS-16776.
-------------------------------------
    Fix Version/s: 3.4.0
                   3.3.9
                   3.2.5
       Resolution: Fixed

> Erasure Coding: The length of targets should be checked when DN gets a reconstruction task
> ------------------------------------------------------------------------------------------
>
>                 Key: HDFS-16776
>                 URL: https://issues.apache.org/jira/browse/HDFS-16776
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Kidd5368
>            Assignee: Kidd5368
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0, 3.3.9, 3.2.5
>
>
> The length of targets should be checked when DN gets a EC reconstruction task.For some reason (HDFS-14768, HDFS-16739) , the length of targets will be larger than additionalReplRequired which causes some elements in targets get the default value 0. It may trigger the bug which leads to the data corrupttion just like HDFS-14768.



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