Re: WOOutputPath causes launch hang

Tue, 24 Oct 2006 22:17:39 -0700 

Chuck,

Very odd! :-)
This is mostly a very, very simple application. There's probably less than 100 lines of controller code in total, and only three components. Nothing happens in the app constructor. It uses Axis as a client (not using WO web services), but not on launch. It has three models with no custom business logic. I'm not using Wonder for this project, and the frameworks are not even installed on the deployment server. Here are the "weird" things I can think of:
- I built it under JDK v1.5. Still runs fine on my development machine, and I certainly haven't had any problems at least with apps LAUNCHING using JDK 1.5. Building it under 1.4.2 doesn't seem to have made a difference.
- The .woa shows up as a folder in the Finder on the deployment machine... which is odd only because the other apps don't.
The best I can figure is that it IS a WOLips specific problem of some sort - but I don't know nearly enough about what WOLips does differently in terms of building the application bundle to figure out where to start troubleshooting it. This is literally the first time I've actually dealt with a woa built by WOLips, but the bundle contents look correct...
The only other interesting thing I noticed is that while it is hung, Monitor recognizes it as running, and if I go to the app in a browser, it shows a blank page. Here is the thread dump.
Full thread dump Java HotSpot(TM) Client VM (1.5.0_06-64 mixed mode, sharing):
"WorkerThread15" prio=5 tid=0x0051d0e0 nid=0x187fc00 waiting for monitor entry [0xf151a000..0xf151aab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x0051cc40 nid=0x187f800 waiting for monitor entry [0xf1499000..0xf1499ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x0051c7a0 nid=0x187f400 waiting for monitor entry [0xf1418000..0xf1418ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x0051c300 nid=0x187f000 waiting for monitor entry [0xf1397000..0xf1397ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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)
"WorkerThread11" prio=5 tid=0x0051be60 nid=0x187ec00 waiting for monitor entry [0xf1316000..0xf1316ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x0051b8c0 nid=0x184c800 runnable [0xf1295000..0xf1295ab0] 
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384)
        - locked <0x268b0120> (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)
"WorkerThread9" prio=5 tid=0x0051b430 nid=0x184c400 waiting for monitor entry [0xf1214000..0xf1214ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x0051af00 nid=0x184c000 waiting for monitor entry [0xf1193000..0xf1193ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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)
"WorkerThread7" prio=5 tid=0x0051aa60 nid=0x184bc00 waiting for monitor entry [0xf1112000..0xf1112ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x0051a5c0 nid=0x184b800 waiting for monitor entry [0xf1091000..0xf1091ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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)
"WorkerThread5" prio=5 tid=0x0051a130 nid=0x1863a00 waiting for monitor entry [0xf1010000..0xf1010ab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x00519b40 nid=0x1863600 waiting for monitor entry [0xf0f8f000..0xf0f8fab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x005196a0 nid=0x1863200 waiting for monitor entry [0xf0f0e000..0xf0f0eab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x00519220 nid=0x1862e00 waiting for monitor entry [0xf0e8d000..0xf0e8dab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x00518e60 nid=0x1862a00 waiting for monitor entry [0xf0e0c000..0xf0e0cab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x005189e0 nid=0x185ea00 waiting for monitor entry [0xf0d8b000..0xf0d8bab0] 
        at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:382)
        - waiting to lock <0x268b0120> (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=0x00518260 nid=0x185e600 waiting on condition [0xf0d0a000..0xf0d0aab0] 
        at java.lang.Thread.sleep(Native Method)
at com.webobjects.appserver.WOApplication $_LifebeatThread.run(WOApplication.java:1233)
"Session Timeout Thread" daemon prio=5 tid=0x00517b60 nid=0x1867000 waiting on condition [0xf0c89000..0xf0c89ab0] 
        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=0x0050a880 nid=0x1810800 runnable [0x00000000..0x00000000]
"CompilerThread0" daemon prio=9 tid=0x00509f30 nid=0x1810400 waiting on condition [0x00000000..0xf0b06358]
"Signal Dispatcher" daemon prio=9 tid=0x00509b30 nid=0x1815800 waiting on condition [0x00000000..0x00000000]
"Finalizer" daemon prio=8 tid=0x00509280 nid=0x1810000 in Object.wait() [0xf0a04000..0xf0a04ab0] 
        at java.lang.Object.wait(Native Method)
- waiting on <0x26ce7000> (a java.lang.ref.ReferenceQueue $Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java: 116) 
        - locked <0x26ce7000> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java: 132) at java.lang.ref.Finalizer$FinalizerThread.run (Finalizer.java:159)
"Reference Handler" daemon prio=10 tid=0x00508e90 nid=0x180f000 in Object.wait() [0xf0983000..0xf0983ab0] 
        at java.lang.Object.wait(Native Method)
        - waiting on <0x26ce7080> (a java.lang.ref.Reference$Lock)
        at java.lang.Object.wait(Object.java:474)
at java.lang.ref.Reference$ReferenceHandler.run (Reference.java:116) 
        - locked <0x26ce7080> (a java.lang.ref.Reference$Lock)
"main" prio=5 tid=0x00501610 nid=0x1804600 in Object.wait() [0xf07ff000..0xf08002c0] 
        at java.lang.Object.wait(Native Method)
- waiting on <0x268b1000> (a com.webobjects.appserver._WORunLoop) at com.webobjects.appserver._WORunLoop._acceptInputBeforeDate (_WORunLoop.java:217) at com.webobjects.appserver._WORunLoop.runBeforeDate (_WORunLoop.java:71) 
        - locked <0x268b1000> (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.macxprts.repairstatus.Application.main (Application.java:34) 
        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=0x005086b0 nid=0x1803c00 runnable
"VM Periodic Task Thread" prio=9 tid=0x0050bf30 nid=0x181a000 waiting on condition
"Exception Catcher Thread" prio=10 tid=0x00501820 nid=0x1804e00 runnable 



Thanks,
Clark

On 24 Oct 06, at 10:27 PM, Chuck Hill wrote:


Clark,
This is rather odd! I can't think of what it might be. Let's try getting a thread dump when it hangs and see where it is stuck, maybe that will suggest something. Are you using Log4J or anything else unusual? Are you using Wonder?
If you need help getting a thread dump, this should help: http:// www.gvcsitemaker.com/gvc.webobjects/faq&mode=single&recordID=41413 


Chuck


On Oct 24, 2006, at 9:01 PM, Clark Mueller wrote:


Chuck,
It doesn't appear to be. The appserver user has write access to the /Library/WebObjects/Logs/RepairStatus directory, and the files underneath it. I've tried running from the CLI as both the appserver user and root, with the same results. Here's an example of the full output:
This command hangs (with the -WOOutputPath flag, in this case set to /dev/null):
root# /Library/WebObjects/Applications/RepairStatus.woa/ RepairStatus -WOPort 5001 -WOOutputPath /dev/null - WOCachingEnabled NO -WODebuggingEnabled NO -WOAutoOpenInBrowser NO -WOAutoOpenClientApplication NO -WOLifebeatInterval 30 - WOLifebeatEnabled YES -WOLifebeatDestinationPort 1085 -WOAdaptor WODefaultAdaptor -WOWorkerThreadCount 8 -WOListenQueueSize 128 - WOWorkerThreadCountMin 16 -WOWorkerThreadCountMax 256 - NSProjectSearchPath "()" -WOSessionTimeOut 3600 - WOApplicationName RepairStatus -WOMonitorEnabled YES -WONoPause YES 


Reading MacOSClassPath.txt ...
Launching RepairStatus.woa ...
java -XX:NewSize=2m -Xmx64m -Xms32m -DWORootDirectory="/System" - DWOLocalRootDirectory="" -DWOUserDirectory="/library/webobjects/ applications" -DWOEnvClassPath="" - DWOApplicationClass=com.macxprts.repairstatus.Application - DWOPlatform=MacOS -Dcom.webobjects.pid=739 -classpath WOBootstrap.jar com.webobjects._bootstrap.WOBootstrap -WOPort 5001 -WOOutputPath /dev/null -WOCachingEnabled NO - WODebuggingEnabled NO -WOAutoOpenInBrowser NO - WOAutoOpenClientApplication NO -WOLifebeatInterval 30 - WOLifebeatEnabled YES -WOLifebeatDestinationPort 1085 -WOAdaptor WODefaultAdaptor -WOWorkerThreadCount 8 -WOListenQueueSize 128 - WOWorkerThreadCountMin 16 -WOWorkerThreadCountMax 256 - NSProjectSearchPath "()" -WOSessionTimeOut 3600 - WOApplicationName RepairStatus -WOMonitorEnabled YES -WONoPause YES appRoot is /Library/WebObjects/Applications/RepairStatus.woa/ Contents Loading /Library/WebObjects/Applications/RepairStatus.woa/ Contents/MacOS/MacOSClassPath.txt 
Generated classpath:
/Library/WebObjects/Applications/RepairStatus.woa/Contents/ Resources/Java/ /Library/WebObjects/Applications/RepairStatus.woa/Contents/ Resources/Java/repairstatus.jar /System/Library/Frameworks/JavaWebObjects.framework/Resources/ Java/javawebobjects.jar /System/Library/Frameworks/JavaFoundation.framework/Resources/ Java/javafoundation.jar /System/Library/Frameworks/JavaXML.framework/Resources/Java/ javaxml.jar /System/Library/Frameworks/JavaEOAccess.framework/Resources/ Java/javaeoaccess.jar /System/Library/Frameworks/JavaEOControl.framework/Resources/ Java/javaeocontrol.jar /System/Library/Frameworks/JavaJDBCAdaptor.framework/Resources/ Java/javajdbcadaptor.jar /Library/Frameworks/JavaWOExtensions.framework/Resources/Java/ JavaWOExtensions.jar 
^C^C^C



This command works (no -WOOutputPath flag at all):
# sudo -u appserver /Library/WebObjects/Applications/ RepairStatus.woa/RepairStatus -WOPort 5001 -WOCachingEnabled NO - WODebuggingEnabled NO -WOAutoOpenInBrowser NO - WOAutoOpenClientApplication NO -WOLifebeatInterval 30 - WOLifebeatEnabled YES -WOLifebeatDestinationPort 1085 -WOAdaptor WODefaultAdaptor -WOWorkerThreadCount 8 -WOListenQueueSize 128 - WOWorkerThreadCountMin 16 -WOWorkerThreadCountMax 256 - NSProjectSearchPath "()" -WOSessionTimeOut 3600 - WOApplicationName RepairStatus -WOMonitorEnabled YES -WONoPause YES 


Reading MacOSClassPath.txt ...
Launching RepairStatus.woa ...
java -XX:NewSize=2m -Xmx64m -Xms32m -DWORootDirectory="/System" - DWOLocalRootDirectory="" -DWOUserDirectory="/library/webobjects/ logs/RepairStatus" -DWOEnvClassPath="" - DWOApplicationClass=com.macxprts.repairstatus.Application - DWOPlatform=MacOS -Dcom.webobjects.pid=782 -classpath WOBootstrap.jar com.webobjects._bootstrap.WOBootstrap -WOPort 5001 -WOCachingEnabled NO -WODebuggingEnabled NO - WOAutoOpenInBrowser NO -WOAutoOpenClientApplication NO - WOLifebeatInterval 30 -WOLifebeatEnabled YES - WOLifebeatDestinationPort 1085 -WOAdaptor WODefaultAdaptor - WOWorkerThreadCount 8 -WOListenQueueSize 128 - WOWorkerThreadCountMin 16 -WOWorkerThreadCountMax 256 - NSProjectSearchPath "()" -WOSessionTimeOut 3600 - WOApplicationName RepairStatus -WOMonitorEnabled YES -WONoPause YES appRoot is /Library/WebObjects/Applications/RepairStatus.woa/ Contents Loading /Library/WebObjects/Applications/RepairStatus.woa/ Contents/MacOS/MacOSClassPath.txt 
Generated classpath:
/Library/WebObjects/Applications/RepairStatus.woa/Contents/ Resources/Java/ /Library/WebObjects/Applications/RepairStatus.woa/Contents/ Resources/Java/repairstatus.jar /System/Library/Frameworks/JavaWebObjects.framework/Resources/ Java/javawebobjects.jar /System/Library/Frameworks/JavaFoundation.framework/Resources/ Java/javafoundation.jar /System/Library/Frameworks/JavaXML.framework/Resources/Java/ javaxml.jar /System/Library/Frameworks/JavaEOAccess.framework/Resources/ Java/javaeoaccess.jar /System/Library/Frameworks/JavaEOControl.framework/Resources/ Java/javaeocontrol.jar /System/Library/Frameworks/JavaJDBCAdaptor.framework/Resources/ Java/javajdbcadaptor.jar /Library/Frameworks/JavaWOExtensions.framework/Resources/Java/ JavaWOExtensions.jar [2006-10-24 22:53:17 CDT] <main> Creating LifebeatThread now with: RepairStatus 5001 <host>/<ip> 1085 30000 
Welcome to RepairStatus!
[2006-10-24 22:53:17 CDT] <main> The URL for webserver connect is:
http://<ip>/cgi-bin/WebObjects/RepairStatus.woa/-5001
[2006-10-24 22:53:17 CDT] <main> null
[2006-10-24 22:53:17 CDT] <main> Waiting for requests...


Thanks,
Clark

On 24 Oct 06, at 9:35 PM, Chuck Hill wrote:


Hi Clark,

It is probably a permissions problem as here:
http://www.gvcsitemaker.com/gvc.webobjects/ faq&mode=single&recordID=19193 

HTH
Chuck

On Oct 24, 2006, at 8:31 PM, Clark Mueller wrote:


Hi everyone,
I'm having a problem deploying a new WO application. This is a very small app, and it's the first that I've built for deployment with WOLips (I am not sure if that's related or not, but I did it according to the tutorial @ http:// www.objectstyle.org/confluence/display/WOL/Deploy+a+WO +Application). What's happening is that on launch, the application hangs immediately after printing the class path. In monitor, it eventually times out as a death. From the CLI, it looks like it just hangs that way indefinitely. The launch arguments are like so:
/Library/WebObjects/Applications/RepairStatus.woa/RepairStatus - WOPort 5001 -WOOutputPath /dev/null -WOCachingEnabled NO - WODebuggingEnabled NO -WOAutoOpenInBrowser NO - WOAutoOpenClientApplication NO -WOLifebeatInterval 30 - WOLifebeatEnabled YES -WOLifebeatDestinationPort 1085 - WOAdaptor WODefaultAdaptor -WOWorkerThreadCount 8 - WOListenQueueSize 128 -WOWorkerThreadCountMin 16 - WOWorkerThreadCountMax 256 -NSProjectSearchPath "()" - WOSessionTimeOut 3600 -WOApplicationName RepairStatus - WOMonitorEnabled YES -WONoPause YES
I've found that if I remove WOOoutputPath, the app launches fine, but if it is set (apparently to anything), the app will hang. Other apps on the server are not having any problems launching. 

Has anyone seen this before? Any thoughts?

Thanks,
Clark

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