My guess is that your app is doing a bunch of socket communications and something isn't properly closing the sockets after use. I have seen similar things when using HTTPClient from apache commons-net where the http connections weren't being closed properly. Eventually the app starts hanging.
I will be interested to hear other opinions -- Dov Rosenberg Inquira Knowledge Management Experts http://www.inquira.com On 4/28/07 8:41 AM, "James Cicenia" <[EMAIL PROTECTED]> wrote: > Hello - > > This one application is driving me crazy. > > It is a read only application! Yet it dies at least once a week which > is unacceptable. > > Here is the thread dump, so if anyone can tell me what is happening > to my app I would be really appreciative. > > Thanks > James Cicenia > > > Full thread dump Java HotSpot(TM) Server VM (1.5.0_07-87 mixed mode): > > "WorkerThread15" prio=5 tid=0x00622470 nid=0x18c9200 waiting for > monitor entry [0xb161c000..0xb161cd10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread14" prio=5 tid=0x00621fc0 nid=0x18c8e00 waiting for > monitor entry [0xb159b000..0xb159bd10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread13" prio=5 tid=0x00621b10 nid=0x18c8a00 waiting for > monitor entry [0xb151a000..0xb151ad10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread12" prio=5 tid=0x00621660 nid=0x18c8600 runnable > [0xb1499000..0xb1499d10] > at java.net.SocketInputStream.socketRead0(Native Method) > at java.net.SocketInputStream.read(SocketInputStream.java:129) > at com.webobjects.appserver._private.WOHttpIO.refillInputBuffer > (WOHttpIO.java:131) > at com.webobjects.appserver._private.WOHttpIO.readLine(WOHttpIO.java: > 187) > at com.webobjects.appserver._private.WOHttpIO.readRequestFromSocket > (WOHttpIO.java:279) > at com.webobjects.appserver._private.WOWorkerThread.runOnce > (WOWorkerThread.java:79) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:254) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread11" prio=5 tid=0x006211b0 nid=0x18c8200 waiting for > monitor entry [0xb1418000..0xb1418d10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread10" prio=5 tid=0x00620c60 nid=0x18c7e00 runnable > [0xb1397000..0xb1397d10] > at java.net.SocketInputStream.socketRead0(Native Method) > at java.net.SocketInputStream.read(SocketInputStream.java:129) > at com.webobjects.appserver._private.WOHttpIO.refillInputBuffer > (WOHttpIO.java:131) > at com.webobjects.appserver._private.WOHttpIO.readLine(WOHttpIO.java: > 187) > at com.webobjects.appserver._private.WOHttpIO.readRequestFromSocket > (WOHttpIO.java:279) > at com.webobjects.appserver._private.WOWorkerThread.runOnce > (WOWorkerThread.java:79) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:254) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread9" prio=5 tid=0x006207b0 nid=0x18c7a00 runnable > [0xb1316000..0xb1316d10] > at java.net.PlainSocketImpl.socketAccept(Native Method) > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384) > - locked <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread8" prio=5 tid=0x006203a0 nid=0x18c7600 runnable > [0xb1295000..0xb1295d10] > at java.net.SocketInputStream.socketRead0(Native Method) > at java.net.SocketInputStream.read(SocketInputStream.java:129) > at com.webobjects.appserver._private.WOHttpIO.refillInputBuffer > (WOHttpIO.java:131) > at com.webobjects.appserver._private.WOHttpIO.readLine(WOHttpIO.java: > 187) > at com.webobjects.appserver._private.WOHttpIO.readRequestFromSocket > (WOHttpIO.java:279) > at com.webobjects.appserver._private.WOWorkerThread.runOnce > (WOWorkerThread.java:79) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:254) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread7" prio=5 tid=0x0061fef0 nid=0x18d5a00 waiting for > monitor entry [0xb1214000..0xb1214d10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread6" prio=5 tid=0x0061fa40 nid=0x18d5600 runnable > [0xb1193000..0xb1193d10] > at java.net.SocketInputStream.socketRead0(Native Method) > at java.net.SocketInputStream.read(SocketInputStream.java:129) > at com.webobjects.appserver._private.WOHttpIO.refillInputBuffer > (WOHttpIO.java:131) > at com.webobjects.appserver._private.WOHttpIO.readLine(WOHttpIO.java: > 187) > at com.webobjects.appserver._private.WOHttpIO.readRequestFromSocket > (WOHttpIO.java:279) > at com.webobjects.appserver._private.WOWorkerThread.runOnce > (WOWorkerThread.java:79) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:254) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread5" prio=5 tid=0x0061f590 nid=0x18d5200 waiting for > monitor entry [0xb1112000..0xb1112d10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread4" prio=5 tid=0x0061f0e0 nid=0x18d4e00 waiting for > monitor entry [0xb1091000..0xb1091d10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread3" prio=5 tid=0x0061ec30 nid=0x18cbe00 waiting for > monitor entry [0xb1010000..0xb1010d10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread2" prio=5 tid=0x0061e7f0 nid=0x18cba00 waiting for > monitor entry [0xb0f8f000..0xb0f8fd10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread1" prio=5 tid=0x0061e3f0 nid=0x18cb600 waiting for > monitor entry [0xb0f0e000..0xb0f0ed10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "WorkerThread0" prio=5 tid=0x0061e270 nid=0x18c5400 waiting for > monitor entry [0xb0e8d000..0xb0e8dd10] > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382) > - waiting to lock <0x085be268> (a java.net.SocksSocketImpl) > at java.net.ServerSocket.implAccept(ServerSocket.java:450) > at java.net.ServerSocket.accept(ServerSocket.java:421) > at com.webobjects.appserver._private.WOWorkerThread.run > (WOWorkerThread.java:238) > at java.lang.Thread.run(Thread.java:613) > > "Thread-0" daemon prio=5 tid=0x00616610 nid=0x1848600 waiting on > condition [0xb0e0c000..0xb0e0cd10] > at java.lang.Thread.sleep(Native Method) > at com.webobjects.appserver.WOApplication$_LifebeatThread.run > (WOApplication.java:1233) > > "Session Timeout Thread" daemon prio=5 tid=0x00615540 nid=0x188fc00 > waiting on condition [0xb0d8b000..0xb0d8bd10] > at java.lang.Thread.sleep(Native Method) > at com.webobjects.appserver.WOSessionStore$_SessionTimeoutManager.run > (WOSessionStore.java:110) > at java.lang.Thread.run(Thread.java:613) > > "Low Memory Detector" daemon prio=5 tid=0x0060a7a0 nid=0x1819000 > runnable [0x00000000..0x00000000] > > "CompilerThread1" daemon prio=9 tid=0x00609d00 nid=0x1818c00 waiting > on condition [0x00000000..0xb0c0832c] > > "CompilerThread0" daemon prio=9 tid=0x00609770 nid=0x1818800 waiting > on condition [0x00000000..0xb0b8732c] > > "AdapterThread" daemon prio=9 tid=0x00609250 nid=0x1803c00 waiting on > condition [0x00000000..0x00000000] > > "Signal Dispatcher" daemon prio=9 tid=0x00608d30 nid=0x1812600 > waiting on condition [0x00000000..0x00000000] > > "Finalizer" daemon prio=8 tid=0x00608390 nid=0x1813400 in Object.wait > () [0xb0a04000..0xb0a04d10] > at java.lang.Object.wait(Native Method) > - waiting on <0x083d0218> (a java.lang.ref.ReferenceQueue$Lock) > at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116) > - locked <0x083d0218> (a java.lang.ref.ReferenceQueue$Lock) > at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132) > at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) > > "Reference Handler" daemon prio=10 tid=0x00607f90 nid=0x1813000 in > Object.wait() [0xb0983000..0xb0983d10] > at java.lang.Object.wait(Native Method) > - waiting on <0x083d0298> (a java.lang.ref.Reference$Lock) > at java.lang.Object.wait(Object.java:474) > at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116) > - locked <0x083d0298> (a java.lang.ref.Reference$Lock) > > "main" prio=5 tid=0x006015b0 nid=0x1804a00 in Object.wait() > [0xb07ff000..0xb08000dc] > at java.lang.Object.wait(Native Method) > - waiting on <0x08506630> (a com.webobjects.appserver._WORunLoop) > at com.webobjects.appserver._WORunLoop._acceptInputBeforeDate > (_WORunLoop.java:217) > at com.webobjects.appserver._WORunLoop.runBeforeDate(_WORunLoop.java: > 71) > - locked <0x08506630> (a com.webobjects.appserver._WORunLoop) > at com.webobjects.appserver.WOApplication._runOnce > (WOApplication.java:775) > at com.webobjects.appserver.WOApplication.run(WOApplication.java:900) > at com.webobjects.appserver.WOApplication.main(WOApplication.java:324) > at com.hb.Application.main(Application.java:70) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke > (NativeMethodAccessorImpl.java:39) > at sun.reflect.DelegatingMethodAccessorImpl.invoke > (DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:585) > at com.webobjects._bootstrap.WOBootstrap.main(WOBootstrap.java:71) > > "VM Thread" prio=9 tid=0x00607760 nid=0x1812c00 runnable > > "VM Periodic Task Thread" prio=9 tid=0x0060b300 nid=0x1819400 waiting > on condition > > "Exception Catcher Thread" prio=10 tid=0x006017d0 nid=0x1805200 runnable > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Webobjects-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/webobjects-dev/drosenberg%40inquira.com > > This email sent to [EMAIL PROTECTED] _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
