问题描述
- tomcat6 每隔几天无法取得dbcp连接池，内存正常，数据库无连接
-
"TP-Monitor" nid=17 state=TIMED_WAITING
- waiting on (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
- locked (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
at java.lang.Object.wait(Native Method)
at org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable.run(ThreadPool.java:565)
at java.lang.Thread.run(Thread.java:619)"TP-Processor1" nid=13 state=WAITING
- waiting on (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
- locked (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:485)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:662)
at java.lang.Thread.run(Thread.java:619)"http-8390-1" nid=19 state=WAITING
- waiting on (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
- locked (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:485)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.await(JIoEndpoint.java:416)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:442)
at java.lang.Thread.run(Thread.java:619)"pool-1-thread-1" nid=22 state=TIMED_WAITING
- waiting on (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
- locked (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:1963)
at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:583)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:576)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)