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  1. Hadoop HDFS
  2. HDFS-237

Better handling of dfsadmin command when namenode is slow

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Details

    • New Feature
    • Status: Resolved
    • Major
    • Resolution: Later
    • None
    • None
    • None
    • None

    Description

      Probably when hitting HADOOP-3810, Namenode became unresponsive. Large time spent in GC.
      All dfs/dfsadmin command were timing out.

      WebUI was coming up after waiting for a long time.

      Maybe setting a long timeout would have made the dfsadmin command go through.
      But it would be nice to have a separate queue/handler which doesn't compete with regular rpc calls.

      All I wanted to do was dfsadmin -safemode enter, dfsadmin -finalizeUpgrade ...

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          is related to

          New Feature - A new feature of the product, which has yet to be developed. HADOOP-9194 RPC Support for QoS

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-9640 RPC Congestion Control with FairCallQueue

          • Major - Major loss of function.
          • Resolved

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              Unassigned Unassigned
              knoguchi Koji Noguchi
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              Dates

                Created:
                Updated:
                Resolved: