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From "Radim Kolar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3828) Block Scanner rescans blocks too frequently
Date Tue, 21 Aug 2012 20:36:38 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3828?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Radim Kolar updated HDFS-3828:
------------------------------

    Fix Version/s: 0.23.0
                   2.1.0-alpha
    
> Block Scanner rescans blocks too frequently
> -------------------------------------------
>
>                 Key: HDFS-3828
>                 URL: https://issues.apache.org/jira/browse/HDFS-3828
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>             Fix For: 0.23.0, 2.1.0-alpha
>
>
> Branching off from HDFS-3194:
> Andy said:
> {quote}
> There is still an issue here even with the patch from hdfs-3194-1.txt. Running on a cluster
with just one block we now see
> {noformat}
> 2012-08-16 15:59:57,884 INFO  datanode.BlockPoolSliceScanner (BlockPoolSliceScanner.java:verifyBlock(391))
- Verification succeeded for BP-2101131164-172.29.122.91-1337906886255:blk_7919273167187535506_4915
> 2012-08-16 16:00:07,904 INFO  datanode.BlockPoolSliceScanner (BlockPoolSliceScanner.java:verifyBlock(391))
- Verification succeeded for BP-2101131164-172.29.122.91-1337906886255:blk_7919273167187535506_4915
> 2012-08-16 16:00:17,925 INFO  datanode.BlockPoolSliceScanner (BlockPoolSliceScanner.java:verifyBlock(391))
- Verification succeeded for BP-2101131164-172.29.122.91-1337906886255:blk_7919273167187535506_4915
> {noformat}
> {quote}
> Uma said:
> bq. Latest patch from Amith should address this issue. 

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