How to process old WLSTORE table

Hi,
For some reason, the JDBC WLSTORE table, has reached more than 200.000 rows. For this reason due performance, we created a new WLSTORE.
Question is how to process the transations that are keep in the old and unused WLSTORE?
Best REgards,

WebLogic is not designed to support this scenario -- but I can give you some ideas that will hopefully get you started. There's no direct way to merge the two stores together, and the methods that do exist may not be "fool-proof" in your particular use case: the recovery process can differ widely from application to application. You may want to consider contacting customer support.
Processing messages in an old store usually requires (A) the domain, JMS server(s), SAF agent(s), destinations, and store configured the same way they were when the original messages were stored (especially the same configuration names), (B) your application for processing messages, (C) booting the system, and (D) running the application until all messages are processed.
Also, if your app is transactional (eg, if it uses JMS transacted sessions or JTA/XA transactions), you should (1) copy the current TLOG (default file store) and save it, and then (2) replace it with the original TLOG from the time you system is transactional. (If your using the "JDBC LLR" feature, you should also perform similar steps with the LLR database table.) If you don't perform this step, and you had "in-doubt" transactions at the point you shutdown the original system, its possible that you can lose messages are cause duplicate messages. It’s likely too late for this step perhaps, as the TM subsystem abandons in-doubt transactions that are more than 24 hours old by default (this, in turn forces all in-doubt transactions to rollback, and is equivalent to what happens when deleting the TLOG – but the fully correct behavior would be to complete the commit of those in-doubt transactions that have already been partially committed).
If step D above is impractical, in some cases it is possible to merge messages from two stores by (1) booting the original system using steps A thru C above, (2) using the console “message management” screens to export the messages to a file, (3) restarting the system with the current store and TLOG, (4) using console "message management" screens to import the messages from the file back into the current system. If I recall correctly, the console export utility uses considerable JVM heap if one attempts to export too many messages in the same operation, also, this process will change the timestamps on the messages and likely cause the old messages to sort after the current messages (so even though the imported messages are older than current messages, current messages will be first in line.)
As another approach if D is impractical, in some cases it is possible to merge messages from two stores by following steps A-C above, and then configuring a message bridge to forward the messages from the old recovered queue in the old domain into a running new domain. The problem with this approach is that domain names and server names will be duplicated between the two domains, an unsupported setup that can lead to connectivity problems and XA issues (especially if you're using transactions to ensure exactly-once forwarding). To work around the problem, messages can be first forwarded to an intermediary destination on yet a third domain, before ultimately forwarding them into the final system. If I recall correctly, the bridge has a feature that can cause it to preserve the message-id and timestamp of WL JMS messages when they are forwarded between two WebLogic destinations.
Note that all of the above assumes that the application processing of the old messages doesn't depend on or modify database data / external data that have already been modified by processing that occurred after the original message store was deleted and replaced. For example, some messages may have been superseded by newer messages and therefore should not be processed (depends on the application). If this is an issue, then many use cases would likely require some sort of manual reconciliation and/or custom application coding to guard against old messages messing up state that should not be changed, or using current state that won't reconcile sanely with the old message's "view of the world".
Hope this helps,
Tom
Edited by: TomB on Oct 14, 2009 1:13 PM

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