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https://issues.apache.org/jira/browse/HDFS-11350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16184986#comment-16184986
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Hadoop QA commented on HDFS-11350:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 2m 9s{color}
| {color:red} HDFS-11350 does not apply to trunk. Rebase required? Wrong
Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-11350 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12848284/HDFS-11350.001.patch |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/21413/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Document the missing settings relevant to DataNode disk IO statistics
> ---------------------------------------------------------------------
>
> Key: HDFS-11350
> URL: https://issues.apache.org/jira/browse/HDFS-11350
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation
> Affects Versions: 3.0.0-alpha2
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Priority: Minor
> Attachments: HDFS-11350.001.patch
>
>
> HDFS-11299 and HDFS-11339 introduced some new setting relevant to profiling
> hooks to expose latency statistics around DataNode disk IO. These settings
> should be intended for users but they are not documented. Totally three
> relevant settings:
> 1.dfs.datanode.enable.fileio.profiling
> 2.dfs.datanode.enable.fileio.fault.injection
> 3.dfs.datanode.fileio.profiling.sampling.fraction
> Actually, only the setting {{dfs.datanode.enable.fileio.fault.injection}}
> don't need to be documented.
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