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系统变慢调整小结

时间:2014-07-25 00:04:44      阅读:379      评论:0      收藏:0      [点我收藏+]

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客户反映系统越用越慢,重启服务器后段时间内系统恢复正常

老年代 垃圾回收不了。 full gc 每分钟执行40次左右。

开始以为是内存泄漏,导出jvm内存快照

快照中可以看到线程池里有问题。但是看不出具体的问题原因

导出线程快照 没有发现可疑线程信息。。。  郁闷了。。(当前时间19:21已经没有客户在操作系统了


第二天继续今天的问题。上午客户打电话说又有问题了。

赶紧导出线程快照

$jstack pid

"Running HTTPHandler-26" prio=10 tid=0x00007f2140001000 nid=0x3c9b waiting for monitor entry [0x00007f21f4d50000]

   java.lang.Thread.State: BLOCKED (on object monitor)

 at com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager.repeatJudgeMethod(RepeatJudgeManager.java:266)

 - waiting to lock <0x00000007a994d600> (a com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager)

 at com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager$$FastClassByCGLIB$$971a2e6a.invoke(<generated>)

 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)

 at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)

 at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)

 at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)

 at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)

 at com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager$$EnhancerByCGLIB$$1805e0ee.repeatJudgeMethod(<generated>)

 at com.sinosoft.xf.petition.petitionaccept.web.RepeatJudgeAction.repeatJudgeMethod(RepeatJudgeAction.java:385)

 at com.sinosoft.xf.petition.petitionaccept.web.RepeatJudgeAction$$FastClassByCGLIB$$720d47c0.invoke(<generated>)

 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)

 java.lang.Thread.State: BLOCKED (on object monitor):线程阻塞

  - waiting to lock <0x00000007a994d600> (a com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager):线程在等待<0x00000007a994d600>这个锁。因为无法获取到所以发生阻塞。


 #cat statck.txt | grep ‘java.lang.Thread.State‘ | sort | uniq -c | sort -n > 1.txt

     18 java.lang.Thread.State: TIMED_WAITING (sleeping)

     18 java.lang.Thread.State: WAITING (parking)

     45 java.lang.Thread.State: TIMED_WAITING (parking)

     63 java.lang.Thread.State: WAITING (on object monitor)

    132 java.lang.Thread.State: RUNNABLE

    135 java.lang.Thread.State: BLOCKED (on object monitor)

    300 java.lang.Thread.State: TIMED_WAITING (on object monitor)

发现竟然有135个线程发生了阻塞

通过导出线程信息定位到具体的代码位置。。

public synchronized String repeatJudgeMethod() {
    ...
}

根据业务需求拆分,调整该方法。



之后有又观察一两天时间发现系统还是很慢,继续导出线程快照

发现该方法执行了一个批量更新,而且这边更新过程比较慢,锁住了一大批的数据导致

"Running HTTPHandler-10" prio=10 tid=0x00007f21b0004800 nid=0x48c1 runnable [0x00007f21f5afa000]

   java.lang.Thread.State: RUNNABLE

 at java.net.SocketInputStream.socketRead0(Native Method)

 at java.net.SocketInputStream.read(SocketInputStream.java:129)

 at com.ibm.db2.jcc.t4.ab.b(ab.java:193)

 at com.ibm.db2.jcc.t4.ab.c(ab.java:237)

 at com.ibm.db2.jcc.t4.ab.c(ab.java:348)

 at com.ibm.db2.jcc.t4.ab.v(ab.java:1133)

 at com.ibm.db2.jcc.t4.eb.c(eb.java:30)

 at com.ibm.db2.jcc.t4.u.a(u.java:32)

 at com.ibm.db2.jcc.t4.j.Xb(j.java:245)

 at com.ibm.db2.jcc.b.jk.X(jk.java:3412)

 at com.ibm.db2.jcc.t4.d.lb(d.java:1928)

 at com.ibm.db2.jcc.t4.d.n(d.java:2115)

 at com.ibm.db2.jcc.t4.d.o(d.java:2127)

 at com.ibm.db2.jcc.t4.d.a(d.java:163)

 at com.ibm.db2.jcc.t4.d.b(d.java:478)

 at com.ibm.db2.jcc.b.bc.a(bc.java:213)

 at com.ibm.db2.jcc.b.jk.c(jk.java:296)

 at com.ibm.db2.jcc.b.jk.next(jk.java:258)

 - locked <0x00000007b02094a8> (a com.ibm.db2.jcc.t4.b)

 at com.apusic.jdbc.adapter.ResultSetHandle.next(Unknown Source)

 at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:91)

 at org.springframework.jdbc.core.JdbcTemplate$1QueryStatementCallback.doInStatement(JdbcTemplate.java:448)

 at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:396)

 at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:458)

 at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:466)

 at org.springframework.jdbc.core.JdbcTemplate.queryForList(JdbcTemplate.java:497)

 at com.sinosoft.xf.petition.petitionaccept.dao.RepeatJudgeDao.getRepeatInfoTreeList(RepeatJudgeDao.java:429)

 at com.sinosoft.xf.petition.petitionaccept.dao.RepeatJudgeDao$$FastClassByCGLIB$$f0ee3a4a.invoke(<generated>)

 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)

 at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)

 at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)

 at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)

 at com.sinosoft.xf.petition.petitionaccept.dao.RepeatJudgeDao$$EnhancerByCGLIB$$e0e3d2b0.getRepeatInfoTreeList(<generated>)

 at com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager.editRepeatInfoRepeatNum(RepeatJudgeManager.java:476)

 at com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager.repeatJudgeMethod(RepeatJudgeManager.java:370)

 - locked <0x00000007a994d600> (a com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager)

 at com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager$$FastClassByCGLIB$$971a2e6a.invoke(<generated>)

 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)

 at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)

 at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)

 at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)

 at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)

 at com.sinosoft.xf.petition.petitionaccept.manager.RepeatJudgeManager$$EnhancerByCGLIB$$1805e0ee.repeatJudgeMethod(<generated>)

 at com.sinosoft.xf.petition.petitionaccept.web.RepeatJudgeAction.repeatJudgeMethod(RepeatJudgeAction.java:385)

 at com.sinosoft.xf.petition.petitionaccept.web.RepeatJudgeAction$$FastClassByCGLIB$$720d47c0.invoke(<generated>)

 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)

 at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:700)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)

 at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:50) 

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:160)

 at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:54)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:160)

 at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)

 at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)

 at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:635)

 at com.sinosoft.xf.petition.petitionaccept.web.RepeatJudgeAction$$EnhancerByCGLIB$$2bf459a6.repeatJudgeMethod(<generated>)

 at sun.reflect.GeneratedMethodAccessor6605.invoke(Unknown Source)

 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

 at java.lang.reflect.Method.invoke(Method.java:597)

 at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)

 at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)

 at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)

 at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)

 at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)

 at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)

 at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)

 at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:142)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:166)

 at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)

 at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)

 at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

 at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)

 at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:485)

 at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)

 at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

 at com.apusic.web.container.FilterComponent.doFilter(Unknown Source)

 at com.apusic.web.container.FilterChainImpl.performFilter(Unknown Source)

 at com.apusic.web.container.FilterChainImpl.doFilter(Unknown Source)

 at org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:102)

 at com.apusic.web.container.FilterComponent.doFilter(Unknown Source)

 at com.apusic.web.container.FilterChainImpl.performFilter(Unknown Source)

 at com.apusic.web.container.FilterChainImpl.doFilter(Unknown Source)

 at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)

 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

 at com.apusic.web.container.FilterComponent.doFilter(Unknown Source)

 at com.apusic.web.container.FilterChainImpl.performFilter(Unknown Source)

 at com.apusic.web.container.FilterChainImpl.doFilter(Unknown Source)

 at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)

 at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

 at com.apusic.web.container.FilterComponent.doFilter(Unknown Source)

 at com.apusic.web.container.FilterChainImpl.performFilter(Unknown Source)

 at com.apusic.web.container.WebContainer.invoke(Unknown Source)

 at com.apusic.web.container.WebContainer.processRequest(Unknown Source)

 at com.apusic.web.http.VirtualHost.processRequest(Unknown Source)

 at com.apusic.web.http.HttpServer.processRequest(Unknown Source)

 at com.apusic.web.http.HttpConnectionHandler.service(Unknown Source)

 at com.apusic.web.http.ConnectionHandler.processRequest(Unknown Source)

 at com.apusic.web.http.ConnectionHandler.processConnection(Unknown Source)

 at com.apusic.web.http.ConnectionHandler.run(Unknown Source)

 at com.apusic.util.ThreadPoolImpl$WorkerThread.run(Unknown Source)

根据业务需要,该方法完全可以忽略。屏蔽改方法后。系统恢复正常

注:有些图片看不到可以访问我的共享笔记:

http://note.youdao.com/share/?id=34bf189c8920fbc464d3ae5af67eaeec&type=note


系统变慢调整小结,布布扣,bubuko.com

系统变慢调整小结

标签:style   http   java   color   os   strong   数据   io   

原文地址:http://my.oschina.net/u/260244/blog/294596

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