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  1. Hadoop YARN
  2. YARN-8216

Reduce RegistryDNS port ping logging

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 3.1.0
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      System monitoring software usually send a tcp packet to test if port is alive. This can cause RegistryDNS to throw BufferUnderflowException.

      2018-04-26 17:07:55,846 WARN org.apache.hadoop.util.concurrent.ExecutorHelper: Execution exception when running task in RegistryDNS 3
      2018-04-26 17:07:55,847 WARN org.apache.hadoop.util.concurrent.ExecutorHelper: Caught exception in thread RegistryDNS 3:
      java.nio.BufferUnderflowException
              at java.nio.HeapByteBuffer.get(HeapByteBuffer.java:151)
              at org.apache.hadoop.registry.server.dns.RegistryDNS.nioTCPClient(RegistryDNS.java:771)
              at org.apache.hadoop.registry.server.dns.RegistryDNS$3.call(RegistryDNS.java:846)
              at org.apache.hadoop.registry.server.dns.RegistryDNS$3.call(RegistryDNS.java:843)
              at java.util.concurrent.FutureTask.run(FutureTask.java:266)
              at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
              at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
              at java.lang.Thread.run(Thread.java:748)
      

      This is perfectly normal, but it would be nice to hide this error message to reduce verbose logging on port ping.

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              • Assignee:
                Unassigned
                Reporter:
                eyang Eric Yang
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                  Updated:
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