[jira] [Resolved] (HDFS-8145) Fix the editlog corruption exposed by failed TestAddStripedBlocks

["Jing Zhao (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-8145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jing Zhao resolved HDFS-8145.
-----------------------------
       Resolution: Fixed
    Fix Version/s: HDFS-7285

I've committed this to the feature branch. Thanks for the review, Nicholas and Zhe!

> Fix the editlog corruption exposed by failed TestAddStripedBlocks
> -----------------------------------------------------------------
>
>                 Key: HDFS-8145
>                 URL: https://issues.apache.org/jira/browse/HDFS-8145
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>             Fix For: HDFS-7285
>
>         Attachments: HDFS-8145.000.patch, HDFS-8145.001.patch, HDFS-8145.002.patch
>
>
> {{TestAddStripedBlocks}} failed with some editlog corruption. Did some debugging, I can see at least two issues:
> # DFSStripedOutputStream tries to send out an empty packet to close the block even if writing 0 bytes
> # Because of the above, NN tries to close the file. This exposes another bug in {{BlockInfoStriped}}, which writes its data/parity block numbers into the close editlog but do not read them while loading.
> This jira aims to only fix #2 and HDFS-8166 is used for fixing #1.



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