java - 100% cpu 在 java 中

Question

我在 jboss 上运行的服务器 (.war) 有时会达到 100% cpu。我用 jstack 做了一个转储，但没有成功地看到什么占用 100% cpu 的指示。jstack -F 没有成功，所以我在没有标志的情况下运行它。还有更多行，但我无法发布所有内容......

我有一个想法，但不确定这是对的:会不会是因为 0x00002aaab58c0900 上的所有锁？

还有几个可运行的喜欢下面的

 "Connect thread 120.18.1.17 session" prio=10 tid=0x00002aaad41ce800 nid=0x604b runnable [0x00000000448d8000..0x00000000448d8b10]
   java.lang.Thread.State: RUNNABLE
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.read(SocketInputStream.java:129)
    at com.jcraft.jsch.IO.getByte(IO.java:82)
    at com.jcraft.jsch.Session.read(Session.java:821)
    at com.jcraft.jsch.Session.run(Session.java:1241)
    at java.lang.Thread.run(Thread.java:619)

"Thread-28" prio=10 tid=0x00002aaad4e9e400 nid=0x6409 runnable [0x0000000044cdc000..0x0000000044cdcd10]
   java.lang.Thread.State: RUNNABLE
    at com.company.departement.application.infrastruct.SSHAgent.executeCommand(SSHAgent.java:128)
    at com.company.departement.application.server.DataCollector.getcomponentKPIs(DataCollector.java:3345)
    - locked <0x00002aaab58c0900> (a com.company.departement.application.server.DataCollector)
    at com.company.departement.application.server.DataCollector.getAllDataRun(DataCollector.java:2021)
    - locked <0x00002aaab58c0900> (a com.company.departement.application.server.DataCollector)
    - locked <0x00002aaab5e6e768> (a java.lang.Object)
    at com.company.departement.application.server.Initapplication$DataThread.run(Initapplication.java:12)

这是转储的开始

2012-05-02 15:02:25
Full thread dump Java HotSpot(TM) 64-Bit Server VM (11.0-b16 mixed mode):

"Attach Listener" daemon prio=10 tid=0x000000005fa00400 nid=0x6f17 waiting on condition [0x0000000000000000..0x0000000000000000]
   java.lang.Thread.State: RUNNABLE

"http-0.0.0.0-8180-13" daemon prio=10 tid=0x00002aaadc2c1400 nid=0x277c waiting for monitor entry [0x00000000460ef000..0x00000000460f0a90]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at com.company.departement.application.server.DataCollector.componentKPIsToClient(DataCollector.java:1413)
    - waiting to lock <0x00002aaab58c0900> (a com.company.departement.application.server.DataCollector)
    at com.company.departement.application.server.getComponentKPIsServiceImpl.getComponentKPIs(getComponentKPIsServiceImpl.java:20)
    at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-12" daemon prio=10 tid=0x00002aaadc2bf800 nid=0x2663 waiting for monitor entry [0x0000000045fee000..0x0000000045fefa10]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at com.company.departement.application.server.DataCollector.componentKPIsToClient(DataCollector.java:1413)
    - waiting to lock <0x00002aaab58c0900> (a com.company.departement.application.server.DataCollector)
    at com.company.departement.application.server.getComponentKPIsServiceImpl.getComponentKPIs(getComponentKPIsServiceImpl.java:20)
    at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-11" daemon prio=10 tid=0x00002aaadc036000 nid=0x25b7 in Object.wait() [0x0000000045eee000..0x0000000045eeeb90]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab67e1c98> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.await(MasterSlaveWorkerThread.java:81)
    - locked <0x00002aaab67e1c98> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:107)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-10" daemon prio=10 tid=0x00002aaadc034800 nid=0x24a8 waiting for monitor entry [0x0000000045dec000..0x0000000045dedb10]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at com.company.departement.application.server.DataCollector.componentKPIsToClient(DataCollector.java:1413)
    - waiting to lock <0x00002aaab58c0900> (a com.company.departement.application.server.DataCollector)
    at com.company.departement.application.server.getComponentKPIsServiceImpl.getComponentKPIs(getComponentKPIsServiceImpl.java:20)
    at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-9" daemon prio=10 tid=0x00002aaadc034000 nid=0x244d in Object.wait() [0x0000000045cec000..0x0000000045cecc90]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab67e3c98> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.await(MasterSlaveWorkerThread.java:81)
    - locked <0x00002aaab67e3c98> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:107)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-8" daemon prio=10 tid=0x00002aaadc02e800 nid=0x233e in Object.wait() [0x00000000458e8000..0x00000000458e8c10]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab67e5c98> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.await(MasterSlaveWorkerThread.java:81)
    - locked <0x00002aaab67e5c98> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:107)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-7" daemon prio=10 tid=0x00002aaadc002800 nid=0x6edd in Object.wait() [0x0000000045beb000..0x0000000045bebc90]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab5e57af8> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.await(MasterSlaveWorkerThread.java:81)
    - locked <0x00002aaab5e57af8> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:107)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-6" daemon prio=10 tid=0x00002aaadc000c00 nid=0x6edc in Object.wait() [0x0000000045aea000..0x0000000045aeac10]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab5e6b0e8> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.await(MasterSlaveWorkerThread.java:81)
    - locked <0x00002aaab5e6b0e8> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:107)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-5" daemon prio=10 tid=0x00002aaadc010000 nid=0x6edb waiting for monitor entry [0x00000000459e8000..0x00000000459e9d90]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at com.company.departement.application.server.DataCollector.componentKPIsToClient(DataCollector.java:1413)
    - waiting to lock <0x00002aaab58c0900> (a com.company.departement.application.server.DataCollector)
    at com.company.departement.application.server.getComponentKPIsServiceImpl.getComponentKPIs(getComponentKPIsServiceImpl.java:20)
    at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-4" daemon prio=10 tid=0x00002aaadc00ec00 nid=0x6da0 waiting for monitor entry [0x00000000457e6000..0x00000000457e7a90]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at com.company.departement.application.server.DataCollector.componentKPIsToClient(DataCollector.java:1413)
    - waiting to lock <0x00002aaab58c0900> (a com.company.departement.application.server.DataCollector)
    at com.company.departement.application.server.getComponentKPIsServiceImpl.getComponentKPIs(getComponentKPIsServiceImpl.java:20)
    at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-3" daemon prio=10 tid=0x00002aaadc026800 nid=0x6d9f waiting for monitor entry [0x0000000041506000..0x0000000041507a10]
   java.lang.Thread.State: BLOCKED (on object monitor)
    at com.company.departement.application.server.DataCollector.componentKPIsToClient(DataCollector.java:1413)
    - waiting to lock <0x00002aaab58c0900> (a com.company.departement.application.server.DataCollector)
    at com.company.departement.application.server.getComponentKPIsServiceImpl.getComponentKPIs(getComponentKPIsServiceImpl.java:20)
    at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
    at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
    at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
    at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:153)
    at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-2" daemon prio=10 tid=0x00002aaadc026000 nid=0x6d9c in Object.wait() [0x0000000044bdb000..0x0000000044bdbb90]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab5ef7ac0> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.await(MasterSlaveWorkerThread.java:81)
    - locked <0x00002aaab5ef7ac0> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:107)
    at java.lang.Thread.run(Thread.java:619)

"TP-Monitor" daemon prio=10 tid=0x00002aaad4d84c00 nid=0x6414 in Object.wait() [0x00000000456e6000..0x00000000456e6c90]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab5e594c0> (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
    at org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable.run(ThreadPool.java:559)
    - locked <0x00002aaab5e594c0> (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
    at java.lang.Thread.run(Thread.java:619)

"TP-Processor4" daemon prio=10 tid=0x00002aaad4ffb400 nid=0x6413 runnable [0x00000000455e5000..0x00000000455e5c10]
   java.lang.Thread.State: RUNNABLE
    at java.net.PlainSocketImpl.socketAccept(Native Method)
    at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
    - locked <0x00002aaab5e6eb10> (a java.net.SocksSocketImpl)
    at java.net.ServerSocket.implAccept(ServerSocket.java:453)
    at java.net.ServerSocket.accept(ServerSocket.java:421)
    at org.apache.jk.common.ChannelSocket.accept(ChannelSocket.java:295)
    at org.apache.jk.common.ChannelSocket.acceptConnections(ChannelSocket.java:641)
    at org.apache.jk.common.SocketAcceptor.runIt(ChannelSocket.java:852)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    at java.lang.Thread.run(Thread.java:619)

"TP-Processor3" daemon prio=10 tid=0x00002aaad4909800 nid=0x6412 in Object.wait() [0x00000000454e4000..0x00000000454e4d90]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab5e58698> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:656)
    - locked <0x00002aaab5e58698> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
    at java.lang.Thread.run(Thread.java:619)

"TP-Processor2" daemon prio=10 tid=0x00002aaad5147800 nid=0x6411 in Object.wait() [0x00000000453e3000..0x00000000453e3d10]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab5e58b50> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:656)
    - locked <0x00002aaab5e58b50> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
    at java.lang.Thread.run(Thread.java:619)

"TP-Processor1" daemon prio=10 tid=0x00002aaad5013c00 nid=0x6410 in Object.wait() [0x00000000452e2000..0x00000000452e2a90]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab5e59008> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:656)
    - locked <0x00002aaab5e59008> (a org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
    at java.lang.Thread.run(Thread.java:619)

"http-0.0.0.0-8180-1" daemon prio=10 tid=0x00002aaadc025400 nid=0x640f in Object.wait() [0x00000000451e1000..0x00000000451e1a10]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00002aaab5f20ee8> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at java.lang.Object.wait(Object.java:485)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.await(MasterSlaveWorkerThread.java:81)
    - locked <0x00002aaab5f20ee8> (a org.apache.tomcat.util.net.MasterSlaveWorkerThread)
    at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:107)
    at java.lang.Thread.run(Thread.java:619)

Answer 1

这里有 2 个不同的问题。

您有一个卡住或长时间运行的线程正在阻止其他请求完成。长时间运行的任务 (DataCollector.getAllDataRun()) 正在阻止其他请求完成。您在最初的评估中看到了这一点。这很可能是您的客户端未收到响应的原因，因为这些新请求正在进入 getAllDataRun() 创建的锁(请参阅所有 Waiting to Lock)。这个线程被阻塞可能有几个原因。

• SSHAgent 被阻止，因为它正在长时间访问服务器。正在执行的作业可能需要调整。
• SSHAgent 正在连接的主机没有响应，而您没有配置正确的超时。
• 有些东西陷入了一个循环，永远不会返回
• 如果这是计划的长时间运行的作业，您可能希望将其从 JBoss 服务器中删除并将其移动到自己的进程中，这样它就不会干扰其余的。

第二部分是 100% 的 CPU。等待锁定线程可能没有使用任何 CPU 周期，因为它们等待获得可以自由继续处理的信号。这里最有可能的罪魁祸首是 SSHAgent.executeMethod() 方法。您将希望看到该方法与 DataCollector.getAllDataRun() 方法一起执行的操作。

如果您在基于 unix 的操作系统上运行它，您可以阅读我发布的另一个答案 here .Solaris 上的 prstat 或其他基于 unix 的操作系统上的 top [shift+h when it opens] 将为您提供 CPU Activity 的分割，直至线程 ID给您带来问题的 JVM。您可以将此信息与您的线程转储配对，以确定究竟是哪一段代码导致了您的问题。