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  1. Hadoop HDFS
  2. HDFS-8315

Datanode does not log reads

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Details

    • Bug
    • Status: Resolved
    • Critical
    • Resolution: Won't Fix
    • None
    • None
    • None

    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.

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        is broken by

        Improvement - An improvement or enhancement to an existing feature or task. HDFS-6836 HDFS INFO logging is verbose & uses file appenders

        • Major - Major loss of function.
        • Closed

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            kihwal Kihwal Lee Assign to me
            kihwal Kihwal Lee
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