我面临着java.lang.OutOfMemoryError:无法创建新的本机线程 这些错误总是以一定的频率出现在两个堆栈中: 第一 java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:714)
at org.springframework.core.task.SimpleAsyncTaskExecutor.doE
在我的线程转储中,我发现了下面这几行:
"lir" daemon prio=5 tid=7f927c7b0000 nid=0x121f40000 in Object.wait() [121f3f000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <7f70bedf0> (a java.util.TaskQueue)
at java.util.TimerThre
在tomcat中,如果webapp确实停止了无守护进程线程,shutdown.sh就不能关闭tomcat。
例如:
public class demo implements ServletContextListener{
public void contextDestroyed(ServletContextEvent arg0) {
// TODO Auto-generated method stub
// yes,we can cancel timer in here,but this is not the major problem
}
public vo
在分析线程转储时,在服务器日志中,我可以看到如下所示的多个问题
Error due to access to database:
Caused by: weblogic.jdbc.extensions.PoolLimitSQLException: weblogic.common.resourcepool.ResourceLimitException: No resources currently available in pool NetCrackerDataSource to allocate to applications, please increase the size of th
看看Java的:
NEW
A thread that has not yet started is in this state.
RUNNABLE
A thread executing in the Java virtual machine is in this state.
BLOCKED
A thread that is blocked waiting for a monitor lock is in this state.
WAITING
A thread that is waiting indefinitely for another thread to perform a parti
我正在尝试从weblogic控制台生成线程转储(服务器-> ->监控->线程->转储线程堆栈。
我得到了下面的消息:Server must be running before thread stacks can be displayed.
但是,当我尝试使用kill -3 <PID>生成线程转储时,它被生成了。
操作系统: Centos Weblogic: WebLogic服务器版本: 10.3.6.0
谁能帮助我理解,为什么线程转储没有从控制台生成,为什么我得到的消息说服务器必须运行。
注意:服务器处于运行状态。
我在Glassfish下有一个使用TIMED_WAIT的WorkManager+ThreadPool,如下所示:
p: thread-pool-1; w: 2018 (TIMED_WAITING):
at java.lang.Object.wait(Native Method)
at com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl.requestWork(WorkQueueImpl.java:171)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerT
在分析Java应用程序时,我注意到了一个有趣的事实。当JVM处于死亡线程转储的GC螺旋中时,如下所示:
"1304802943@qtp-393978767-9985" prio=10 tid=0x00007f3ed02dd000 nid=0x74e7 in Object.wait() [0x000000004febb000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at org.mortbay.thread
我研究了多线程增量的最佳性能。我检查了基于同步、AtomicInteger和自定义实现的实现,比如在AtomicInteger中,但是在失败的parkNanos(1)上。
private int customAtomic() {
int ret;
for (;;) {
ret = intValue;
if (unsafe.compareAndSwapInt(this, offsetIntValue, ret, ++ret)) {
break;
}
有一个日志显示用Weblogic标记的卡住线程:
<Apr 23, 2013 7:48:25 AM CST> <Error> <WebLogicServer> <BEA-000337> <[STUCK] ExecuteThread: '276' for queue: 'weblogic.kernel.Default (self-tuning)' has been busy for "668" seconds working on the request "weblogic.servle