quartz集群报错but has failed to stop it. This is very likely to create a memory leak.

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quartz集群报错but has failed to stop it. This is very likely to create a memory leak.

嗯哼9925 2017-11-14 16:11:00 浏览5144
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在一台配置1核2G内存的阿里云服务器上运行quartz;执行定时任务报如下异常,而在本地开发环境中则正常运行。


10-Sep-2016 11:43:50.415 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [faxian] appears to have started a thread named [logback-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
 java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
 java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
 java.lang.Thread.run(Thread.java:745)
10-Sep-2016 11:43:50.415 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [faxian] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Object.wait(Native Method)
 java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
 com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:43)
10-Sep-2016 11:43:50.416 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [faxian] appears to have started a thread named [clusterQuartzScheduler_Worker-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Object.wait(Native Method)
 org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:568)
10-Sep-2016 11:43:50.417 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [faxian] appears to have started a thread named [clusterQuartzScheduler_Worker-2] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Object.wait(Native Method)
根据异常,初步判断是内存溢出导致的问题。查看服务器内存使用情况


 [root@test-server logs]#  free -h
              total       used       free     shared    buffers     cached
 Mem:          1.8G       1.7G       84M       9.4M       154M       520M
 -/+ buffers/cache:       1.1G       759M
 Swap:           0B         0B         0B
 
于是查看quartz的配置


<task:executor id="quartzTaskExecutor" keep-alive="900" pool-size="10" queue-capacity="20" />
pool-size="10",queue-capacity="20"。

然而根据实际情况并,连接池数量和容量并不需要这么大。改成pool-size="1",queue-capacity="1",再次启动不再报错。

查看服务器内存使用情况


[root@test-server logs]#  free -h
             total       used       free     shared    buffers     cached
Mem:          1.8G       1.7G       141M       9.3M       154M       422M
-/+ buffers/cache:       1.1G       718M
Swap:           0B         0B         0B







本文转自秋楓博客园博客,原文链接:http://www.cnblogs.com/rwxwsblog/p/5896449.html,如需转载请自行联系原作者

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