zhengchenyu created HADOOP-18433:
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Summary: Fix main thread name.
Key: HADOOP-18433
URL: https://issues.apache.org/jira/browse/HADOOP-18433
Project: Hadoop Common
Issue Type: Improvement
Components: common, ipc
Affects Versions: 3.2.1
Reporter: zhengchenyu
The server's main thread is "Listener at ${hostname}/9000", it is confused
easily. We can see the main thread like below.
{code:java}
"Listener at ${hostname}/9000" #1 prio=5 os_prio=0 tid=0x00007f8068016000
nid=0x5c086 in Object.wait() [0x00007f806f1d4000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x00007f7552553010> (a
org.apache.hadoop.ipc.ProtobufRpcEngine$Server)
at java.lang.Object.wait(Object.java:502)
at org.apache.hadoop.ipc.Server.join(Server.java:3449)
- locked <0x00007f7552553010> (a
org.apache.hadoop.ipc.ProtobufRpcEngine$Server)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.join(NameNodeRpcServer.java:613)
at org.apache.hadoop.hdfs.server.namenode.NameNode.join(NameNode.java:1014)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1774)
{code}
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