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From "Liu Shaohui (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-11240) Print hdfs pipeline when hlog's sync is slow
Date Fri, 23 May 2014 07:27:01 GMT
Liu Shaohui created HBASE-11240:

             Summary: 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: wal
            Reporter: Liu Shaohui
            Assignee: Liu Shaohui

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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