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https://issues.apache.org/jira/browse/HDFS-3194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13436178#comment-13436178
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Hudson commented on HDFS-3194:
------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #2618 (See 
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/2618/])
    HDFS-3194. DataNode block scanner is running too frequently. Contributed by 
Andy Isaacson (Revision 1373928)

     Result = FAILURE
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1373928
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java

                
> DataNode block scanner is running too frequently
> ------------------------------------------------
>
>                 Key: HDFS-3194
>                 URL: https://issues.apache.org/jira/browse/HDFS-3194
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node
>    Affects Versions: 2.0.0-alpha
>            Reporter: suja s
>            Assignee: Andy Isaacson
>             Fix For: 2.2.0-alpha
>
>         Attachments: HDFS-3194_1.patch, hdfs-3194-1.txt, HDFS-3194_2.patch, 
> HDFS-3194_4.patch, HDFS-3194_6.patch, HDFS-3194_7.patch, HDFS-3194.patch
>
>
> Block scanning interval by default should be taken as 21 days(3 weeks) and 
> each block scanning should happen once in 21 days.
> Here the block is being scanned continuosly.
> 2012-04-03 10:44:47,056 INFO 
> org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Verification 
> succeeded for 
> BP-241703115-xx.xx.xx.55-1333086229434:blk_-2666054955039014473_1003
> 2012-04-03 10:45:02,064 INFO 
> org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Verification 
> succeeded for 
> BP-241703115-xx.xx.xx.55-1333086229434:blk_-2666054955039014473_1003
> 2012-04-03 10:45:17,071 INFO 
> org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Verification 
> succeeded for 
> BP-241703115-xx.xx.xx.55-1333086229434:blk_-2666054955039014473_1003
> 2012-04-03 10:45:32,079 INFO 
> org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceScanner: Verification 
> succeeded for BP-241703115-xx.xx.xx.55-1333086229434:blk_-2666054955039014473

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