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https://issues.apache.org/jira/browse/HBASE-11240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14062353#comment-14062353
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Hudson commented on HBASE-11240:
--------------------------------

FAILURE: Integrated in HBase-TRUNK #5305 (See 
[https://builds.apache.org/job/HBase-TRUNK/5305/])
HBASE-11240 Print hdfs pipeline when hlog's sync is slow ADDENDUM (stack: rev 
c694ec11df3437b2ad24f365e3318dc7e931ddfc)
* 
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: 0.99.0, 2.0.0
>
>         Attachments: HBASE-11240-addendum.diff, 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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