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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11240) Print hdfs pipeline when hlog's sync is slow
Date Wed, 02 Jul 2014 03:27:25 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14049581#comment-14049581
] 

Hudson commented on HBASE-11240:
--------------------------------

FAILURE: Integrated in HBase-TRUNK #5258 (See [https://builds.apache.org/job/HBase-TRUNK/5258/])
HBASE-11240 Print hdfs pipeline when hlog's sync is slow (Liu Shaohui) (stack: rev ad78a9cfded3d65f83f4015120746e5c29436b18)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/wal/FSHLog.java


> Print hdfs pipeline when hlog's sync is slow
> --------------------------------------------
>
>                 Key: HBASE-11240
>                 URL: https://issues.apache.org/jira/browse/HBASE-11240
>             Project: HBase
>          Issue Type: Improvement
>          Components: Operability, wal
>            Reporter: Liu Shaohui
>            Assignee: Liu Shaohui
>             Fix For: 2.0.0
>
>         Attachments: HBASE-11240-trunk-v1.diff, HBASE-11240-trunk-v2.diff
>
>
> Sometimes the slow sync of hlog writer is because there is an abnormal datanode in the
pipeline. So it will be helpful to print the pipeline of slow sync to diagnose those problems.
> The ultimate solution is to join the trace of HBase and HDFS.



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