Andy Isaacson created HDFS-3828:
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Summary: 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
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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