[TRAFODION-1935] TransactionManager retries needlessly when an UnknownTransactionException is caught

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: dtm
• Assignee: Sean Broeder
• Reporter: Sean Broeder
• Created: 14/Apr/16 20:00
• Updated: 19/Jul/16 00:14
• Resolved: 19/Jul/16 00:14

Description

In doPrepareX the the TransactionManager catches and retries UnknownTransactionExceptions thrown by the regions. This is pointless because regions that don't know about a transaction will never learn about it through a prepare message retry. Instead, we should catch a generic excpetion, look to see if it's an UnknownTransactionException, throw it if it is, otherwise retry.