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  1. Hadoop HDFS
  2. HDFS-4169

Add per-disk latency metrics to DataNode

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 3.0.0-alpha1
    • Fix Version/s: 3.0.0-alpha2
    • Component/s: datanode
    • Labels:
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      Description

      Currently, if one of the drives on the DataNode is slow, it's hard to determine what the issue is. This can happen due to a failing disk, bad controller, etc. It would be preferable to expose per-drive metrics/jmx with latency statistics about how long reads/writes are taking.

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              • Assignee:
                xyao Xiaoyu Yao
                Reporter:
                tlipcon Todd Lipcon
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                • Created:
                  Updated:
                  Resolved: