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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