on 09-30-2012 8:58 AM
Hello,
We have an Issue in Solution Manager Production system.
While opening the NWA page it takes huge time and throws below Error.
Network Error (tcp_error) |
A communication error occurred: "" |
The Web Server may be down, too busy, or experiencing other problems preventing it from responding to requests. You may wish to try again at a later time. |
============================================================================
Other links like System Info etc works properly.
End users while using java part of SPZ does not face.
We have taken the HTTP Watch trace for this and the logs are as follows
00:00:00.000 Network Error
+ 0.000 0.112 922 300 GET 302 Redirect to http://10.8.33.13:51000/webdynpro/dispatcher/sap.com/tc~lm~webadmin~mainframe~wd/WebAdminApp http://10.8.33.13:51000/nwa
+ 0.114 2 324.187 987 1061 GET 503 html http://10.8.33.13:51000/webdynpro/dispatcher/sap.com/tc~lm~webadmin~mainframe~wd/WebAdminApp
2 324.301 1909 1361 2 requests
In default trace we observe below Errors
#1.#0017A477202800040000000C00005F5C0004CAE5B40C9755#1348987823888#com.sap.engine.services.r3startup.impl1.dispatcher.R3StartupService##com.sap.engine.services.r3startup.impl1.dispatcher.R3StartupSe
rvice#######SAPEngine_System_Thread[impl:6]_36##0#0#Error##Plain###Couldn't send INVALIDATE_ETAG to R/3 dispatcher. Exception is : java.net.SocketException: Socket closed
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:120)
at java.net.SocketOutputStream.write(SocketOutputStream.java:157)
at com.sap.engine.services.r3startup.dispatcher.SocketThread.sendMessage(SocketThread.java:93)
at com.sap.engine.services.r3startup.impl1.dispatcher.R3StartupService.invalidateEtag(R3StartupService.java:460)
at com.sap.engine.services.httpserver.dispatcher.HttpDispatcherFrame.receive(HttpDispatcherFrame.java:492)
at com.sap.engine.core.service630.context.cluster.message.MessageListenerWrapper.process(MessageListenerWrapper.java:126)
at com.sap.engine.core.cluster.impl6.ms.MSMessageQueue.process(MSMessageQueue.java:77)
at com.sap.engine.core.cluster.impl6.ms.MSMessageThread.run(MSMessageThread.java:37)
at com.sap.engine.frame.core.thread.Task.run(Task.java:64)
at com.sap.engine.core.thread.impl6.SingleThread.execute(SingleThread.java:82)
at com.sap.engine.core.thread.impl6.SingleThread.run(SingleThread.java:154)
We have restarted the Java Instance of this and also entire solman system also.
But this issue did solve.
Kindly suggest how should this issue be solved.
Thank you, Regards,
Girish Garje.
Hello Girish
Please check / search SCN or use Google to search for relevant historical threads for this issue.
Search for "Couldn't send INVALIDATE_ETAG to R/3 dispatcher"
For example:
http://scn.sap.com/thread/760593
Your J2EE dispatcher fails to send a message to the R/3 dispatcher. Try the solution provided in above thread, the root cause is most likely a communication timeout.
Best regards
Tom
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