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https://issues.apache.org/jira/browse/HDFS-5355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated HDFS-5355:
-----------------------------
    Target Version/s:   (was: 2.8.0)

> Hsync Metrics error
> -------------------
>
>                 Key: HDFS-5355
>                 URL: https://issues.apache.org/jira/browse/HDFS-5355
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.2.0, 3.0.0-alpha1
>            Reporter: haosdent
>            Priority: Minor
>         Attachments: HDFS-5355.patch
>
>
> The authors before comment "Expect two syncs, one from the hsync, one on 
> close" in TestDataNodeMetrics.java. In fact there isn't call sync when close. 
> One hsync call would produce two syncs, one for checksum and the other for 
> block. I modify relate code and make it looks like the hflush metrics.



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