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Posted to hdfs-issues@hadoop.apache.org by "Kousuke Saruta (JIRA)" <ji...@apache.org> on 2013/11/22 02:02:32 UTC

[jira] [Assigned] (HDFS-5546) race condition crashes "hadoop ls -R" when directories are moved/removed

     [ https://issues.apache.org/jira/browse/HDFS-5546?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kousuke Saruta reassigned HDFS-5546:
------------------------------------

    Assignee: Kousuke Saruta

> race condition crashes "hadoop ls -R" when directories are moved/removed
> ------------------------------------------------------------------------
>
>                 Key: HDFS-5546
>                 URL: https://issues.apache.org/jira/browse/HDFS-5546
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.2.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Kousuke Saruta
>            Priority: Minor
>
> This seems to be a rare race condition where we have a sequence of events like this:
> 1. org.apache.hadoop.shell.Ls calls DFS#getFileStatus on directory D.
> 2. someone deletes or moves directory D
> 3. org.apache.hadoop.shell.Ls calls PathData#getDirectoryContents(D), which calls DFS#listStatus(D). This throws FileNotFoundException.
> 4. ls command terminates with FNF



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