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From "Erik Krogen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12131) Add some of the FSNamesystem JMX values as metrics
Date Tue, 01 Aug 2017 22:42:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erik Krogen updated HDFS-12131:
-------------------------------
    Description: 
A number of useful numbers are emitted via the FSNamesystem JMX, but not through the metrics
system. These would be useful to be able to track over time, e.g. to alert on via standard
metrics systems or to view trends and rate changes:
* NumLiveDataNodes
* NumDeadDataNodes
* NumDecomLiveDataNodes
* NumDecomDeadDataNodes
* NumDecommissioningDataNodes
* NumStaleStorages
* VolumeFailuresTotal
* EstimatedCapacityLostTotal
* NumInMaintenanceLiveDataNodes
* NumInMaintenanceDeadDataNodes
* NumEnteringMaintenanceDataNodes

This is a simple change that just requires annotating the JMX methods with {{@Metric}}.

  was:
A number of useful numbers are emitted via the FSNamesystem JMX, but not through the metrics
system. These would be useful to be able to track over time, e.g. to alert on via standard
metrics systems or to view trends and rate changes:
* NumLiveDataNodes
* NumDeadDataNodes
* NumDecomLiveDataNodes
* NumDecomDeadDataNodes
* NumDecommissioningDataNodes
* NumStaleStorages

This is a simple change that just requires annotating the JMX methods with {{@Metric}}.


> Add some of the FSNamesystem JMX values as metrics
> --------------------------------------------------
>
>                 Key: HDFS-12131
>                 URL: https://issues.apache.org/jira/browse/HDFS-12131
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs, namenode
>            Reporter: Erik Krogen
>            Assignee: Erik Krogen
>            Priority: Minor
>         Attachments: HDFS-12131.000.patch, HDFS-12131.001.patch, HDFS-12131.002.patch,
HDFS-12131.002.patch, HDFS-12131.003.patch, HDFS-12131.004.patch
>
>
> A number of useful numbers are emitted via the FSNamesystem JMX, but not through the
metrics system. These would be useful to be able to track over time, e.g. to alert on via
standard metrics systems or to view trends and rate changes:
> * NumLiveDataNodes
> * NumDeadDataNodes
> * NumDecomLiveDataNodes
> * NumDecomDeadDataNodes
> * NumDecommissioningDataNodes
> * NumStaleStorages
> * VolumeFailuresTotal
> * EstimatedCapacityLostTotal
> * NumInMaintenanceLiveDataNodes
> * NumInMaintenanceDeadDataNodes
> * NumEnteringMaintenanceDataNodes
> This is a simple change that just requires annotating the JMX methods with {{@Metric}}.



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