Re: Sudden cpu spike

doug andrews Fri, 31 Jul 2009 13:48:08 -0700

This is still an issue for us.

We have a site with the following:
OS 10.5.7
2.8 Ghz Quad-Core Intel Xeon
WebObjects 5.4.3
Java 1.5.0_19

Apache2.2 (We are using the Apache adaptor from Apple right now, andnot the Wonder version)


There is one instance of our app.
There are about 7 sessions running.
Each session has a separate connection to the database.

Within about 5 hours or so, all 4 processors run at close to 100%,until eventually the app stops responding.We have a few sites that have this problem, and the only thing i cansee in common is running WO5.4.x on Leopard.

I did manage to get the jstack output when this machine's cpu usagewas close to capacity.

Below is the jstack output.

Does anything jump out as obviously wrong to anybody?

admin$ sudo jstack 17494
Password:
Attaching to process ID 17494, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 1.5.0_19-137
Deadlock Detection:

No deadlocks found.

Thread t...@64771: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@66819: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@67075: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@67331: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@70147: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@70403: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@70659: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@70915: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@71171: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@71427: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@71683: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@71939: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@72195: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@73219: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@73475: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@73731: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@73987: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@74243: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@74499: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@74755: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@75011: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@75267: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@76291: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@76547: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@76803: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@77059: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@77315: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@77571: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@77827: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@78083: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@78339: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@78595: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@79107: (state = IN_NATIVE)


Thread t...@79363: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@79619: (state = IN_JAVA)


Thread t...@79875: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@80131: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

- com.webobjects.appserver.WOSessionStore.checkOutSessionWithID(java.lang.String, com.webobjects.appserver.WORequest) @bci=48,line=191 (Interpreted frame)- com.webobjects.appserver.WOApplication.restoreSessionWithID(java.lang.String, com.webobjects.appserver.WOContext) @bci=9,line=1913 (Interpreted frame)-com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(com.webobjects.appserver.WOApplication,com.webobjects.appserver.WOContext,com.webobjects.foundation.NSDictionary) @bci=55, line=324(Interpreted frame)-com.webobjects.appserver._private.WOComponentRequestHandler._handleRequest(com.webobjects.appserver.WORequest) @bci=113, line=369(Interpreted frame)-com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(com.webobjects.appserver.WORequest) @bci=46, line=445 (Interpretedframe)- com.webobjects.appserver.WOApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=32, line=1687 (Compiled frame)- Application.dispatchRequest(com.webobjects.appserver.WORequest)@bci=2, line=629 (Interpreted frame)- com.webobjects.appserver._private.WOWorkerThread.runOnce()@bci=473, line=144 (Compiled frame)- com.webobjects.appserver._private.WOWorkerThread.run() @bci=129,line=226 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@82435: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@82691: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@82947: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@83459: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@83715: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@83971: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@84739: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@85507: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@86275: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@88067: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@89859: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@90627: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@90883: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)

- PrintManager.findAFile(java.io.File) @bci=36, line=237(Interpreted frame)

 - PrintManager.run() @bci=64, line=60 (Interpreted frame)


Thread t...@91139: (state = BLOCKED)

- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@91395: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@91651: (state = IN_JAVA)


Thread t...@91907: (state = IN_JAVA)


Thread t...@92163: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@93187: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@93443: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@93699: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@94467: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@94723: (state = BLOCKED)

- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0,line=382 (Interpreted frame)- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50,line=450 (Interpreted frame)

 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)

- com.webobjects.appserver._private.WOWorkerThread.run() @bci=26,line=210 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@94979: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@95235: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@95491: (state = IN_NATIVE)
Error occurred during stack walking:

sun.jvm.hotspot.debugger.UnalignedAddressException: Trying to read ataddress: 0xc9e58955 with alignment: 4at sun.jvm.hotspot.debugger.DebuggerUtilities.checkAlignment(DebuggerUtilities.java:40)at sun.jvm.hotspot.debugger.macosx.MacOSXDebuggerLocal2.readCInteger(MacOSXDebuggerLocal2.java:387)at sun.jvm.hotspot.debugger.DebuggerBase.readAddressValue(DebuggerBase.java:425)at sun.jvm.hotspot.debugger.macosx.MacOSXDebuggerLocal2.readAddress(MacOSXDebuggerLocal2.java:257)at sun.jvm.hotspot.debugger.macosx.MacOSXAddress.getAddressAt(MacOSXAddress.java:54)

        at sun.jvm.hotspot.runtime.x86.X86Frame.getLink(X86Frame.java:338)
        at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:218)
        at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:184)
        at sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:189)
        at sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:102)
        at sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:134)

at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:231)

        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:53)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:27)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:62)


Thread t...@95751: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@96515: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@96771: (state = IN_JAVA)


Thread t...@97027: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)

- java.util.TimerThread.mainLoop() @bci=201, line=509 (Interpretedframe)

 - java.util.TimerThread.run() @bci=1, line=462 (Interpreted frame)


Thread t...@97283: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)

- com.webobjects.appserver.WOApplication$_LifebeatThread.run()@bci=233, line=1619 (Interpreted frame)



Thread t...@97539: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)

- com.webobjects.appserver.WOSessionStore$_SessionTimeoutManager.run() @bci=12, line=98 (Interpreted frame)

 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t...@97795: (state = BLOCKED)


Thread t...@98051: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)

- java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=120(Interpreted frame)- java.lang.ref.ReferenceQueue.remove() @bci=2, line=136 (Compiledframe)

Error occurred during stack walking:
java.lang.NullPointerException
        at sun.jvm.hotspot.runtime.Frame.addressOfStackSlot(Frame.java:214)
        at sun.jvm.hotspot.runtime.x86.X86Frame.getSenderSP(X86Frame.java:355)
        at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:218)
        at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:184)
        at sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:189)
        at sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:102)
        at sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:134)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:53)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:27)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:62)


Thread t...@98311: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Compiled frame)
Error occurred during stack walking:
java.lang.NullPointerException
        at sun.jvm.hotspot.runtime.Frame.addressOfStackSlot(Frame.java:214)
        at sun.jvm.hotspot.runtime.x86.X86Frame.getSenderSP(X86Frame.java:355)
        at sun.jvm.hotspot.runtime.x86.X86Frame.sender(X86Frame.java:218)
        at sun.jvm.hotspot.runtime.Frame.sender(Frame.java:184)
        at sun.jvm.hotspot.runtime.Frame.realSender(Frame.java:189)
        at sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:102)
        at sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:134)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:53)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:27)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:41)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:204)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:62)


Thread t...@98567: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)

- com.webobjects.appserver._WORunLoop._acceptInputBeforeDate(com.webobjects.foundation.NSTimestamp) @bci=98, line=244(Interpreted frame)- com.webobjects.appserver._WORunLoop.runBeforeDate(com.webobjects.foundation.NSTimestamp) @bci=39, line=95 (Interpretedframe)- com.webobjects.appserver.WOApplication._runOnce() @bci=17,line=1095 (Interpreted frame)- com.webobjects.appserver.WOApplication.run() @bci=106, line=1248(Interpreted frame)- com.webobjects.appserver.WOApplication.main(java.lang.String[],java.lang.Class) @bci=55, line=548 (Interpreted frame)- Application.main(java.lang.String[]) @bci=22, line=173(Interpreted frame)- sun.reflect.NativeMethodAccessorImpl.invoke0(java.lang.reflect.Method, java.lang.Object, java.lang.Object[])@bci=0 (Interpreted frame)- sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object,java.lang.Object[]) @bci=87, line=39 (Interpreted frame)- sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object,java.lang.Object[]) @bci=6, line=25 (Interpreted frame)- java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=111, line=585 (Interpreted frame)- com.webobjects._bootstrap.WOBootstrap.main(java.lang.String[])@bci=136, line=71 (Interpreted frame)



-Thanks



On Sep 23, 2008, at 5:03 PM, Chuck Hill wrote:

Hi Doug,


On Sep 23, 2008, at 12:19 PM, doug andrews wrote:
Still in need of help-
I took your advice and made a build specifically for this siteusing java 1.5 and the latest xcode and wo.
I am still having this problem.
We have one instance of our application that is causing eachprocessor to spike to over 90 percent of its cpu capacity.When this happens, one random user will get the 'instance notavailable'.
Have you gotten a thread dump from such a run away instance?
http://www.gvcsitemaker.com/gvc.webobjects/faq&mode=single&recordID=41413
Is that one specific instance, or just randomly one of them? Ifone specific, what is different about it?
This only happens when someone upgrades to WO 5.4.2 or 5.4.3.
Tiger machines running WO 5.3.x have no problems.
Are the machines upgraded to WO 5.4 running a copy of the appcompiled against the same version of WO?
These are intel machines running OS 10.5.x.
Does anyone know of any changes made in WO 5.4.x (or OS 10.5.x)that could cause this?
Not off hand.

Chuck
On Aug 25, 2008, at 3:22 PM, Mike Schrag wrote:
No, they were built using Xcode and WO 5.3.3.
This is a really bad idea ... I would never deploy on a versionthat's different than development. It's just asking forproblems. While it MAY work, you're just playing roulette withyour app. Either 1) replace 5.4 with 5.3 on that server, 2)rebuild your app with WO 5.3 embedded, or 3) Setup a proper 5.4.2build and development environment and rebuild and test your appin 5.4.2.
ms

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--
Chuck Hill             Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase theiroverall knowledge of WebObjects or who are trying to solve specificproblems.
http://www.global-village.net/products/practical_webobjects


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Re: Sudden cpu spike

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