WebLogic 10.3 与 JDK 1.6_16 - Java 反射中挂起线程

发布于 2024-10-10 11:44:40 字数 1343 浏览 7 评论 0原文

在看似微不足道的 Java 反射操作中，我们的重复 Weblogic 线程挂起超过 600 秒，有时甚至仅挂起 30 秒（这同样糟糕）。

线程转储和 WebLogic 自己的关于卡住线程的内置警报都显示相同的本机代码，但不知道是什么导致它挂起这么长的时间间隔（下面的卡住线程）。

我注意到出现了这条消息，这很奇怪，因为 JDK 本身是 jdk160_16。

这是在启用了本机 I/O 的 Solaris 上进行的，但也许其他一些设置是错误的？

不同的线程有不同的早期代码，但卡住的部分总是相同的：

"[STUCK] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon prio=3 tid=0x01c2f000 nid=0x74 runnable [0x5bcfc000]
   java.lang.Thread.State: RUNNABLE
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
    at java.lang.Class.getConstructor0(Class.java:2699)
    at java.lang.Class.newInstance0(Class.java:326)
    at java.lang.Class.newInstance(Class.java:308)
    at sun.reflect.MethodAccessorGenerator$1.run(MethodAccessorGenerator.java:381)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.reflect.MethodAccessorGenerator.generate(MethodAccessorGenerator.java:377)
    at sun.reflect.MethodAccessorGenerator.generateMethod(MethodAccessorGenerator.java:59)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:28)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)

原文

We are having recurring Weblogic threads hanging for 600+ seconds, or sometimes only for 30 seconds (which is just as bad) in seemingly trivial Java Reflection operations.

Thread dumps and WebLogic's own built-in alert on stuck thread all showing same native code, but no idea what could be causing it to hang for such long intervals (stuck thread below).

I noticed that message comes up, which is weird as JDK itself is jdk160_16.

This is on Solaris with Native I/O enabled, but maybe some other setting is wrong?

Various threads have different earlier code, but the stuck section is always the same:

"[STUCK] ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon prio=3 tid=0x01c2f000 nid=0x74 runnable [0x5bcfc000]
   java.lang.Thread.State: RUNNABLE
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
    at java.lang.Class.getConstructor0(Class.java:2699)
    at java.lang.Class.newInstance0(Class.java:326)
    at java.lang.Class.newInstance(Class.java:308)
    at sun.reflect.MethodAccessorGenerator$1.run(MethodAccessorGenerator.java:381)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.reflect.MethodAccessorGenerator.generate(MethodAccessorGenerator.java:377)
    at sun.reflect.MethodAccessorGenerator.generateMethod(MethodAccessorGenerator.java:59)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:28)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)

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