Hi everyone,
Please let me know what is the solution for the following problem. I am getting this problem randomly in server.log when using Jboss messaging,
2008-08-22 08:49:44,978 ERROR [org.jgroups.protocols.UDP] exception=java.io.StreamCorruptedException: invalid stream header
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:764)
at java.io.ObjectInputStream.(ObjectInputStream.java:277)
at org.jgroups.protocols.UDP.handleIncomingUdpPacket(UDP.java:670)
at org.jgroups.protocols.UDP$IncomingPacketHandler.run(UDP.java:1332)
at java.lang.Thread.run(Thread.java:595)
Thanks in advance :)
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Thank you PeterJ,
I am now moving with the datasource. But confusion again is that can (I am using Oracle database and data must be accessed from 3 users) we write 3 users and password in a single datasource file or we should make 3 different datasource file. And if we make 3 different datasources files what must be the name of the -ds.xml file. And How to access this -ds.xml file from the Code..
Thank you in advance anticipating the answer
mabimal
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-What is the difference between the 'start' and the 'create' date of a task instance ?
When a tasks gets created by the process, I think not both are set.
When you dynamically create task instances none of both is set (unless you set them yourself) though it is possible to end that task (and the end task will be filled in)
-Is there a concept like 'suspend until' ? I know you can suspend a task, but can you also suspend a task till some date ?
- when the due date expires ? how can you neatly define the transitions (one transition for leaving the node in a regular way, another transition that should be taken if the due date is exceeded (expiration date ?) )
Sincerely,
Dieter D'haeyere.
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Hello and thanks for the help,
The problem came back even after reducing the sleep time to 2 seconds.
I could see that every 2 seconds the JVM cpu utilization jumps high and I get many warning messages. When the problem happens the JVM takes about 250M, mostly for JBoss cache.
I will try to reduce the max nodes to 5000 and set the sleep time to 1 second.
I still don't understand how JBoss should be configured. Should I change the queue size from 200,000 ? Does it have any implication on my situation ?
Thanks again,
Elad.
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Dear Paul,
I gave you a link to a jconsole tutorial. Play around with jconsole for a few hours. Just load up a clean JBoss in Java 1.5 and dig around. I cannot teach you how to use it across the Internet, though you can hire me to do that. :-)
Read up on what mbeans are and how to interpret them. Then apply that to the jboss jmx console. I know it's big, but the first time you looked under the hood of your car it was big also. Now you just top up the oil even on cars you've never seen in your life.
Kees Jan
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