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https://issues.apache.org/jira/browse/HDFS-4059?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suresh Srinivas updated HDFS-4059:
----------------------------------
Resolution: Fixed
Fix Version/s: (was: 1.1.0)
Release Note:
This jira adds a new metric with name "StaleDataNodes" under metrics context
"dfs" of type Gauge. This tracks the number of DataNodes marked as stale. A
DataNode is marked stale when the heartbeat message from the DataNode is not
received within the configured time ""dfs.namenode.stale.datanode.interval".
Please see hdfs-default.xml documentation corresponding to
""dfs.namenode.stale.datanode.interval" for more details on how to configure
this feature. When this feature is not configured, this metrics would return
zero.
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
I committed the patch to branch-2 and trunk. Thank you Jing.
> Add number of stale DataNodes to metrics
> ----------------------------------------
>
> Key: HDFS-4059
> URL: https://issues.apache.org/jira/browse/HDFS-4059
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: data-node, name-node
> Affects Versions: 3.0.0
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Priority: Minor
> Fix For: 3.0.0, 2.0.3-alpha
>
> Attachments: HDFS-4059.trunk.001.patch, HDFS-4059.trunk.002.patch,
> HDFS-4059.trunk.003.patch
>
>
> Add the number of stale DataNodes to metrics.
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