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Posted to hdfs-dev@hadoop.apache.org by "Zehao Chen (Jira)" <ji...@apache.org> on 2021/02/04 22:07:00 UTC
[jira] [Created] (HDFS-15821) Add metrics for in-service datanodes
Zehao Chen created HDFS-15821:
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Summary: 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
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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