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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5558) LeaseManager monitor thread can crash if the last block is complete but another block is not.
Date Sat, 23 Nov 2013 02:05:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kihwal Lee updated HDFS-5558:
-----------------------------

    Description: 
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.



  was:
As mentioned in HDFS-5557, a file has its last and penultimate block not completed and the
file is being closed, the last block can 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.




> 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
>            Reporter: Kihwal Lee
>
> 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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