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Posted to hdfs-issues@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2011/08/09 01:12:29 UTC

[jira] [Commented] (HDFS-2240) Possible deadlock between LeaseManager and its factory

    [ https://issues.apache.org/jira/browse/HDFS-2240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13081286#comment-13081286 ] 

Tsz Wo (Nicholas), SZE commented on HDFS-2240:
----------------------------------------------

Todd, thanks for running jcarder.  The detected deadlock is a false alert since LeaseRenewer.Factory.get(..) is invoked indirectly by a DFSClient constructor only.  DFSClient.close() won't be called inside the constructor.

> Possible deadlock between LeaseManager and its factory
> ------------------------------------------------------
>
>                 Key: HDFS-2240
>                 URL: https://issues.apache.org/jira/browse/HDFS-2240
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.23.0
>
>         Attachments: lease-renewer-cycle.png
>
>
> Lock cycle detected by jcarder

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