[jira] [Created] (YARN-8216) Reduce RegistryDNS port ping logging

["Eric Yang (JIRA)" <ji...@apache.org>]

Eric Yang created YARN-8216:
-------------------------------

             Summary: Reduce RegistryDNS port ping logging
                 Key: YARN-8216
                 URL: https://issues.apache.org/jira/browse/YARN-8216
             Project: Hadoop YARN
          Issue Type: Bug
    Affects Versions: 3.1.0
         Environment: System monitoring software usually send a tcp packet to test if port is alive.  This can cause RegistryDNS to throw BufferUnderflowException.

{code}
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)
{code}

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






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