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  1. Hadoop HDFS
  2. HDFS-8315

Datanode does not log reads

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
    • Target Version/s:

      Description

      HDFS-6836 made datanode read request logging DEBUG. There is a good reason why it was at INFO for so many years. This is very useful in debugging load issues. This jira will revert HDFS-6836.

      We haven't seen it being a bottleneck on busy hbase clusters, but if someone thinks it is a serious overhead, please make it configurable in a separate jira.

        Attachments

        1. HDFS-8315.patch
          1 kB
          Kihwal Lee

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              • Assignee:
                kihwal Kihwal Lee
                Reporter:
                kihwal Kihwal Lee
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                • Created:
                  Updated:
                  Resolved: