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Posted to common-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2023/06/05 05:52:00 UTC

[jira] [Commented] (HADOOP-18433) Fix main thread name.

    [ https://issues.apache.org/jira/browse/HADOOP-18433?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17729190#comment-17729190 ] 

ASF GitHub Bot commented on HADOOP-18433:
-----------------------------------------

adoroszlai merged PR #5692:
URL: https://github.com/apache/hadoop/pull/5692




> 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
>            Assignee: zhengchenyu
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>
> 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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