[jira] Updated: (HDFS-1258) Clearing namespace quota on "/" corrupts FS image

["Aaron T. Myers (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-1258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aaron T. Myers updated HDFS-1258:
---------------------------------

    Attachment: clear-quota-0.20.patch
                clear-quota-0.21.patch

Patches for 0.20 and 0.21.

> Clearing namespace quota on "/" corrupts FS image
> -------------------------------------------------
>
>                 Key: HDFS-1258
>                 URL: https://issues.apache.org/jira/browse/HDFS-1258
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>            Priority: Blocker
>             Fix For: 0.20.3, 0.22.0
>
>         Attachments: clear-quota-0.20.patch, clear-quota-0.21.patch, clear-quota.patch, clear-quota.patch
>
>
> The HDFS root directory starts out with a default namespace quota of Integer.MAX_VALUE. If you clear this quota (using "hadoop dfsadmin -clrQuota /"), the fsimage gets corrupted immediately. Subsequent 2NN rolls will fail, and the NN will not come back up from a restart.

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