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https://issues.apache.org/jira/browse/HBASE-5618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13249464#comment-13249464
]
Hudson commented on HBASE-5618:
-------------------------------
Integrated in HBase-0.92 #362 (See
[https://builds.apache.org/job/HBase-0.92/362/])
HBASE-5618 SplitLogManager - prevent unnecessary attempts to resubmits
(Revision 1310921)
Result = FAILURE
stack :
Files :
* /hbase/branches/0.92/CHANGES.txt
*
/hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/SplitLogManager.java
> SplitLogManager - prevent unnecessary attempts to resubmits
> -----------------------------------------------------------
>
> Key: HBASE-5618
> URL: https://issues.apache.org/jira/browse/HBASE-5618
> Project: HBase
> Issue Type: Improvement
> Components: wal, zookeeper
> Reporter: Prakash Khemani
> Assignee: Prakash Khemani
> Fix For: 0.92.2, 0.94.0
>
> Attachments:
> 0001-HBASE-5618-SplitLogManager-prevent-unnecessary-attem.patch,
> 0001-HBASE-5618-SplitLogManager-prevent-unnecessary-attem.patch,
> 0001-HBASE-5618-SplitLogManager-prevent-unnecessary-attem.patch,
> 0001-HBASE-5618-SplitLogManager-prevent-unnecessary-attem.patch,
> 0001-HBASE-5618-SplitLogManager-prevent-unnecessary-attem.patch
>
>
> Currently once a watch fires that the task node has been updated (hearbeated)
> by the worker, the splitlogmanager still quite some time before it updates
> the "last heard from" time. This is because the manager currently schedules
> another getDataSetWatch() and only after that finishes will it update the
> task's "last heard from" time.
> This leads to a large number of zk-BadVersion warnings when resubmission is
> continuously attempted and it fails.
> Two changes should be made
> (1) On a resubmission failure because of BadVersion the task's lastUpdate
> time should get upped.
> (2) The task's lastUpdate time should get upped as soon as the
> nodeDataChanged() watch fires and without waiting for getDataSetWatch() to
> complete.
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