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From "Binglin Chang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6506) Newly moved block replica been invalidated and deleted in TestBalancer
Date Tue, 15 Jul 2014 03:24:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14061612#comment-14061612
] 

Binglin Chang commented on HDFS-6506:
-------------------------------------

Hi [~djp], this bug is related to TestBalancerWithNodeGroup, could you help review this? Thanks:)

> Newly moved block replica been invalidated and deleted in TestBalancer
> ----------------------------------------------------------------------
>
>                 Key: HDFS-6506
>                 URL: https://issues.apache.org/jira/browse/HDFS-6506
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Binglin Chang
>            Assignee: Binglin Chang
>         Attachments: HDFS-6506.v1.patch, HDFS-6506.v2.patch
>
>
> TestBalancerWithNodeGroup#testBalancerWithNodeGroup fails recently
> https://builds.apache.org/job/PreCommit-HDFS-Build/7045//testReport/
> from the error log, the reason seems to be that newly moved block replicas been invalidated
and deleted, so some work of the balancer are reversed.
> {noformat}
> 2014-06-06 18:15:51,681 INFO  balancer.Balancer (Balancer.java:dispatch(370)) - Successfully
moved blk_1073741834_1010 with size=100 from 127.0.0.1:49159 to 127.0.0.1:55468 through 127.0.0.1:49159
> 2014-06-06 18:15:51,683 INFO  balancer.Balancer (Balancer.java:dispatch(370)) - Successfully
moved blk_1073741833_1009 with size=100 from 127.0.0.1:49159 to 127.0.0.1:55468 through 127.0.0.1:49159
> 2014-06-06 18:15:51,683 INFO  balancer.Balancer (Balancer.java:dispatch(370)) - Successfully
moved blk_1073741830_1006 with size=100 from 127.0.0.1:49159 to 127.0.0.1:55468 through 127.0.0.1:49159
> 2014-06-06 18:15:51,683 INFO  balancer.Balancer (Balancer.java:dispatch(370)) - Successfully
moved blk_1073741831_1007 with size=100 from 127.0.0.1:49159 to 127.0.0.1:55468 through 127.0.0.1:49159
> 2014-06-06 18:15:51,682 INFO  balancer.Balancer (Balancer.java:dispatch(370)) - Successfully
moved blk_1073741832_1008 with size=100 from 127.0.0.1:49159 to 127.0.0.1:55468 through 127.0.0.1:49159
> 2014-06-06 18:15:54,702 INFO  balancer.Balancer (Balancer.java:dispatch(370)) - Successfully
moved blk_1073741827_1003 with size=100 from 127.0.0.1:49159 to 127.0.0.1:55468 through 127.0.0.1:49159
> 2014-06-06 18:15:54,702 INFO  balancer.Balancer (Balancer.java:dispatch(370)) - Successfully
moved blk_1073741828_1004 with size=100 from 127.0.0.1:49159 to 127.0.0.1:55468 through 127.0.0.1:49159
> 2014-06-06 18:15:54,701 INFO  balancer.Balancer (Balancer.java:dispatch(370)) - Successfully
moved blk_1073741829_1005 with size=100 fr
> 2014-06-06 18:15:54,706 INFO  BlockStateChange (BlockManager.java:chooseExcessReplicates(2711))
- BLOCK* chooseExcessReplicates: (127.0.0.1:55468, blk_1073741833_1009) is added to invalidated
blocks set
> 2014-06-06 18:15:54,709 INFO  BlockStateChange (BlockManager.java:chooseExcessReplicates(2711))
- BLOCK* chooseExcessReplicates: (127.0.0.1:55468, blk_1073741834_1010) is added to invalidated
blocks set
> 2014-06-06 18:15:56,421 INFO  BlockStateChange (BlockManager.java:invalidateWorkForOneNode(3242))
- BLOCK* BlockManager: ask 127.0.0.1:55468 to delete [blk_1073741833_1009, blk_1073741834_1010]
> 2014-06-06 18:15:57,717 INFO  BlockStateChange (BlockManager.java:chooseExcessReplicates(2711))
- BLOCK* chooseExcessReplicates: (127.0.0.1:55468, blk_1073741832_1008) is added to invalidated
blocks set
> 2014-06-06 18:15:57,720 INFO  BlockStateChange (BlockManager.java:chooseExcessReplicates(2711))
- BLOCK* chooseExcessReplicates: (127.0.0.1:55468, blk_1073741827_1003) is added to invalidated
blocks set
> 2014-06-06 18:15:57,721 INFO  BlockStateChange (BlockManager.java:chooseExcessReplicates(2711))
- BLOCK* chooseExcessReplicates: (127.0.0.1:55468, blk_1073741830_1006) is added to invalidated
blocks set
> 2014-06-06 18:15:57,722 INFO  BlockStateChange (BlockManager.java:chooseExcessReplicates(2711))
- BLOCK* chooseExcessReplicates: (127.0.0.1:55468, blk_1073741831_1007) is added to invalidated
blocks set
> 2014-06-06 18:15:57,723 INFO  BlockStateChange (BlockManager.java:chooseExcessReplicates(2711))
- BLOCK* chooseExcessReplicates: (127.0.0.1:55468, blk_1073741829_1005) is added to invalidated
blocks set
> 2014-06-06 18:15:59,422 INFO  BlockStateChange (BlockManager.java:invalidateWorkForOneNode(3242))
- BLOCK* BlockManager: ask 127.0.0.1:55468 to delete [blk_1073741827_1003, blk_1073741829_1005,
blk_1073741830_1006, blk_1073741831_1007, blk_1073741832_1008]
> 2014-06-06 18:16:02,423 INFO  BlockStateChange (BlockManager.java:invalidateWorkForOneNode(3242))
- BLOCK* BlockManager: ask 127.0.0.1:55468 to delete [blk_1073741845_1021]
> {noformat}
> Normally this should not happen, when moving a block from src to dest, replica on src
should be invalided not the dest, there should be bug inside related logic. 
> I don't think TestBalancerWithNodeGroup#testBalancerWithNodeGroup caused this. 



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