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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9674) The HTrace span for OpWriteBlock should record the maxWriteToDisk time
Date Thu, 21 Jan 2016 21:27:40 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9674?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhe Zhang updated HDFS-9674:
----------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 2.9.0
           Status: Resolved  (was: Patch Available)

> The HTrace span for OpWriteBlock should record the maxWriteToDisk time
> ----------------------------------------------------------------------
>
>                 Key: HDFS-9674
>                 URL: https://issues.apache.org/jira/browse/HDFS-9674
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, tracing
>    Affects Versions: 2.4.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>             Fix For: 2.9.0
>
>         Attachments: HTRACE-9674.001.patch
>
>
> The HTrace span for OpWriteBlock should record the maxWriteToDisk time.  That way, if
the trace span is long, we can figure out whether it is because of a hard disk or I/O issue,
or something else.



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