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Posted to hdfs-dev@hadoop.apache.org by "Stephen O'Donnell (Jira)" <ji...@apache.org> on 2021/11/03 21:53:00 UTC

[jira] [Resolved] (HDFS-16286) Debug tool to verify the correctness of erasure coding on file

     [ https://issues.apache.org/jira/browse/HDFS-16286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stephen O'Donnell resolved HDFS-16286.
--------------------------------------
    Resolution: Fixed

Committed down the active 3.x branches. Thanks for the contribution [~cndaimin].

> Debug tool to verify the correctness of erasure coding on file
> --------------------------------------------------------------
>
>                 Key: HDFS-16286
>                 URL: https://issues.apache.org/jira/browse/HDFS-16286
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: erasure-coding, tools
>    Affects Versions: 3.3.0, 3.3.1
>            Reporter: daimin
>            Assignee: daimin
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.4.0, 3.2.3, 3.3.2
>
>          Time Spent: 4.5h
>  Remaining Estimate: 0h
>
> Block data in erasure coded block group may corrupt and the block meta (checksum) is unable to discover the corruption in some cases such as EC reconstruction, related issues are:  HDFS-14768, HDFS-15186, HDFS-15240.
> In addition to HDFS-15759, there needs a tool to check erasure coded file whether any block group has data corruption in case of other conditions rather than EC reconstruction, or the feature HDFS-15759(validation during EC reconstruction) is not open(which is close by default now).



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