Thanks to Twitter for sharing: -
 | IBM_AppServer Great blog on Recovering from failed transaction recovery. Very helpful! Take a look! http://t.co/KoxbxEqNr9 #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.