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Posted to hdfs-dev@hadoop.apache.org by "Xiaoqiao He (Jira)" <ji...@apache.org> on 2020/03/25 12:42:00 UTC

[jira] [Created] (HDFS-15242) Add metrics for operations hold lock times of FsDatasetImpl

Xiaoqiao He created HDFS-15242:
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             Summary: Add metrics for operations hold lock times of FsDatasetImpl
                 Key: HDFS-15242
                 URL: https://issues.apache.org/jira/browse/HDFS-15242
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: datanode
            Reporter: Xiaoqiao He
            Assignee: Xiaoqiao He


Some operations of FsDatasetImpl need to hold Lock, and sometimes it costs long time to execute since it include IO operation in Lock. I propose to add metrics for this operations then it could be more convenient for monitor and dig bottleneck.



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