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Posted to issues@spark.apache.org by "Sean R. Owen (Jira)" <ji...@apache.org> on 2023/09/28 23:05:00 UTC
[jira] [Assigned] (SPARK-44895) Considering 'daemon', 'priority' from higher JDKs for ThreadStackTrace class
[ https://issues.apache.org/jira/browse/SPARK-44895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean R. Owen reassigned SPARK-44895:
------------------------------------
Assignee: Kent Yao
> Considering 'daemon', 'priority' from higher JDKs for ThreadStackTrace class
> ----------------------------------------------------------------------------
>
> Key: SPARK-44895
> URL: https://issues.apache.org/jira/browse/SPARK-44895
> Project: Spark
> Issue Type: Sub-task
> Components: Web UI
> Affects Versions: 4.0.0
> Reporter: Kent Yao
> Assignee: Kent Yao
> Priority: Major
> Labels: pull-request-available
>
> {code:java}
> jshell> var t = java.lang.management.ManagementFactory.getThreadMXBean()t ==> com.sun.management.internal.HotSpotThreadImpl@7daf6ecc
> jshell> var tt = t.dumpAllThreads(true, true)tt ==> ThreadInfo[10] { "main" prio=5 Id=1 RUNNABLE at ... k$NonfairSync@27fa135a
> }
> jshell> for (java.lang.management.ThreadInfo t1: tt) {System.out.println(t1.toString());}"main" prio=5 Id=1 RUNNABLE at java.management@20.0.1/sun.management.ThreadImpl.dumpThreads0(Native Method) at java.management@20.0.1/sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:540) at java.management@20.0.1/sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:527) at REPL.$JShell$12.do_it$Aux($JShell$12.java:7) at REPL.$JShell$12.do_it$($JShell$12.java:11) at java.base@20.0.1/java.lang.invoke.DirectMethodHandle$Holder.invokeStatic(DirectMethodHandle$Holder) at java.base@20.0.1/java.lang.invoke.LambdaForm$MH/0x0000007001008c00.invoke(LambdaForm$MH) at java.base@20.0.1/java.lang.invoke.Invokers$Holder.invokeExact_MT(Invokers$Holder) ...
> "Reference Handler" daemon prio=10 Id=8 RUNNABLE at java.base@20.0.1/java.lang.ref.Reference.waitForReferencePendingList(Native Method) at java.base@20.0.1/java.lang.ref.Reference.processPendingReferences(Reference.java:246) at java.base@20.0.1/java.lang.ref.Reference$ReferenceHandler.run(Reference.java:208) {code}
> the `daemon prio=10` is not available for ThreadInfo of jdk8
>
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