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From "Andy Isaacson (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3828) Block Scanner rescans blocks too frequently
Date Wed, 22 Aug 2012 00:10:38 GMT

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

Andy Isaacson updated HDFS-3828:
--------------------------------

     Target Version/s: 2.2.0-alpha  (was: 2.1.0-alpha)
    Affects Version/s: 0.23.0
        Fix Version/s:     (was: 2.1.0-alpha)
                           (was: 0.23.0)

Radim,

We don't set the Fix Version field on Hadoop jiras until the fix is actually committed.  Instead
please set the Affects or Target versions appropriately.

I've removed the 0.23.0 tag from Fix Version and added it to Affects Version since I suspect
that's what you intended.  Please update the Target Version if you plan to backport to 0.23;
I am not planning to backport unless requested.
                
> 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: 0.23.0, 2.0.0-alpha
>            Reporter: Andy Isaacson
>            Assignee: Andy Isaacson
>
> 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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