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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 Mon, 06 Jun 2011 20:03:02 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-1149.2.patch

Thanks a lot for the review, Todd. The only change in this latest patch is:

{noformat}
-    if (isInSafeMode())
-      throw new SafeModeException("Cannot release lease on " + src, safeMode);
+    assert !isInSafeMode();
{noformat}

> 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: editsStored, hdfs-1149.0.patch, hdfs-1149.1.patch, hdfs-1149.1.patch,
hdfs-1149.2.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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