Can BPEL retry consuming message from JMS Q Infinite times after rollback?
Hi Guys,
I have a scenario where a simple BPEL 11g with a throw consumes messages from a JMS queue.
If some error occurs the message would be rolled back to JMS queue.
I want to configure the BPEL in such a way that the BPEL would retry to consume the rolled back message again and again regardless of how many times it is getting rolled back.
please suggest some solutions.
Thanks in Advance...
To get rollbacks to sucessfully put messages back on a queue we:
1. Ensure the BPEL component in composite.xml has the following properties set:
<property name="bpel.config.transaction">required</property>
<property name="bpel.config.oneWayDeliveryPolicy">sync</property>
2. Use ASync fault policy
<property name="oracle.composite.faultPolicyFile">oramds:/apps/AIAMetaData/faultPolicies/IC/ASync/V1/fault-policies.xml</property>
<property name="oracle.composite.faultBindingFile">oramds:/apps/AIAMetaData/faultPolicies/IC/ASync/V1/fault-bindings.xml</property>
These are custom fault policies we have that simply rethrows the fault (I can send them to you if required)
The problem is that you will fire your server into an endless loop and not have any control over the process. Many kinds of error will cause the loop not just the one you want. I can imagine SOA server will hang, or run out of memory then you will reboot it and it will just hang again.
You may have a resubmit delay of 5 mins but if you have 300 messages in the queue that is still one try every second. I can imagine your server falling over.
Automatic re-submission is possible but I would suggest going for a design that gives you a little more control over the process. Having error messages go into an error queue and an automatic re-submission process might be a good idea. You could then control the process. e.g. Try one of the messages every 5 mins and if that works put the entire contents of the error queue back into the main queue.
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>
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logMessage = msg.getString("Message");
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After reviewing your post, I have located an article that can help in this situation. It contains a number of troubleshooting steps and helpful advice concerning Messages and SMS:
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http://support.apple.com/kb/ts2755
Thank you for contributing to Apple Support Communities.
Cheers,
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