Metrics on Secondary namenode's activity
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Key: HADOOP-3990
URL: https://issues.apache.org/jira/browse/HADOOP-3990
Project: Hadoop Core
Issue Type: Improvement
Components: dfs, metrics
Reporter: Koji Noguchi
Priority: Minor
To monitor secondary namenode's activiely, we currently rely on 'delete'
metrics when it replays the edits.
(HADOOP-1495)
Requesting for new metrics that shows secondary namenode's activity.
Maybe the size of the fsimage/edits being read and written.
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