Friday, 19 September 2014

WebSphere Application Server - Recovering from failed transaction recovery

Thanks to Twitter for sharing: -

Great blog on Recovering from failed transaction recovery. Very helpful! Take a look! #wasserv
19/09/2014 17:10

When WebSphere Application Server is running a transaction, the transaction information is written to the tranlog directory to log1 & log2. The resources required for that transaction (database name, user, password, etc) are recorded in the partnerlog directory to it's log1 & log2. When a transaction completes, the transaction information is garbage collected from the logs. If the application server should abend or be forced off mid-transaction, such that a transaction does not complete, then on subsequent server restarts, the transaction service detects the unfinished transaction and attempts to re-establish the resource(s) stored in the partnerlogs then complete the transaction(s) stored in the travelogs.

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