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https://issues.apache.org/jira/browse/HDFS-15821?focusedWorklogId=550933&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-550933
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ASF GitHub Bot logged work on HDFS-15821:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 10/Feb/21 20:30
Start Date: 10/Feb/21 20:30
Worklog Time Spent: 10m
Work Description: jbrennan333 commented on pull request #2690:
URL: https://github.com/apache/hadoop/pull/2690#issuecomment-777009218
Thanks for fixing checkstyle issues. I will wait for checks to finish
before committing.
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Issue Time Tracking
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Worklog Id: (was: 550933)
Time Spent: 0.5h (was: 20m)
> Add metrics for in-service datanodes
> ------------------------------------
>
> Key: HDFS-15821
> URL: https://issues.apache.org/jira/browse/HDFS-15821
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Zehao Chen
> Assignee: Zehao Chen
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> We currently have metrics for live datanodes but some of the datanodes may be
> in decommissioning state or maintenance state. Adding this metric allows us
> to know how many nodes are currently in service, where NumInServiceDatanodes
> = NumLiveDataNodes - NumDecomLiveDataNodes - NumInMaintenanceLiveDataNodes.
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