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  1. Hadoop HDFS
  2. HDFS-237

Better handling of dfsadmin command when namenode is slow

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    • New Feature
    • Status: Resolved
    • Major
    • Resolution: Later
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    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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            Unassigned Unassigned
            knoguchi Koji Noguchi
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