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https://issues.apache.org/jira/browse/HDFS-9674?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15111325#comment-15111325
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Zhe Zhang commented on HDFS-9674:
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Thanks Colin. +1 on the patch. The failed tests are not related to the change
and pass locally.
I just committed the patch to trunk and branch-2.
> 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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