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Date: Mon, 2 Dec 2013 17:34:36 +0000 (UTC)
From: "Colin Patrick McCabe (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12680851.1385172292478.54962.1386005676090@arcas>
In-Reply-To: <JIRA.12680851.1385172292478@arcas>
References: <JIRA.12680851.1385172292478@arcas>
Subject: [jira] [Commented] (HDFS-5558) LeaseManager monitor thread can
 crash if the last block is complete but another block is not.
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    [ https://issues.apache.org/jira/browse/HDFS-5558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13836710#comment-13836710 ] 

Colin Patrick McCabe commented on HDFS-5558:
--------------------------------------------

Thanks for the explanation.  Using WARN here is fine with me.

> LeaseManager monitor thread can crash if the last block is complete but another block is not.
> ---------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5558
>                 URL: https://issues.apache.org/jira/browse/HDFS-5558
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.23.9, 2.3.0
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>         Attachments: HDFS-5558.branch-023.patch, HDFS-5558.patch
>
>
> As mentioned in HDFS-5557, if a file has its last and penultimate block not completed and the file is being closed, the last block may be completed but the penultimate one might not. If this condition lasts long and the file is abandoned, LeaseManager will try to recover the lease and the block. But {{internalReleaseLease()}} will fail with invalid cast exception with this kind of file.


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