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Posted to common-issues@hadoop.apache.org by "Attila Doroszlai (Jira)" <ji...@apache.org> on 2023/06/05 05:54:00 UTC
[jira] [Updated] (HADOOP-18433) Fix main thread name.
[ https://issues.apache.org/jira/browse/HADOOP-18433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Attila Doroszlai updated HADOOP-18433:
--------------------------------------
Fix Version/s: 3.3.6
> 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, 3.3.6
>
>
> 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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