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https://issues.apache.org/jira/browse/HDFS-8410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15590592#comment-15590592
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SammiChen commented on HDFS-8410:
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Hi Andrew, thanks for the comments. Yea, It's better to use "final" for the new
variable. Regarding using {{Time.monotonicNow()}} function, it seems this
function returns the millisecond value instead of nanoseconds value. Given this
metric is called "Nanoseconds spent by decoding tasks", I'm not sure if you are
suggesting change this metric definition to "Milliseconds" something. I'd like
to known your opinion.
> Add computation time metrics to datanode for ECWorker
> -----------------------------------------------------
>
> Key: HDFS-8410
> URL: https://issues.apache.org/jira/browse/HDFS-8410
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Li Bo
> Assignee: SammiChen
> Attachments: HDFS-8410-001.patch, HDFS-8410-002.patch,
> HDFS-8410-003.patch, HDFS-8410-004.patch
>
>
> This is a sub task of HDFS-7674. It adds time metric for ec decode work.
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