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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-1149) Lease reassignment is not persisted to edit log
Date Thu, 02 Jun 2011 00:42:47 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers updated HDFS-1149:
---------------------------------

    Attachment: hdfs-1149.0.patch

Patch which addresses the issue.

I changed around the {{waitActive}} method of {{MiniDFSCluster}} such that it will work both
on fresh NN starts and NN restarts. This consisted of moving some error handling code around
the call to {{waitActive}} from {{restartNameNode}} into {{waitActive}} itself.

> Lease reassignment is not persisted to edit log
> -----------------------------------------------
>
>                 Key: HDFS-1149
>                 URL: https://issues.apache.org/jira/browse/HDFS-1149
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.21.0, 0.22.0, 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Aaron T. Myers
>             Fix For: 0.23.0
>
>         Attachments: hdfs-1149.0.patch
>
>
> During lease recovery, the lease gets reassigned to a special NN holder. This is not
currently persisted to the edit log, which means that after an NN restart, the original leaseholder
could end up allocating more blocks or completing a file that has already started recovery.

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