On Dec 31, 2008, at 12:45 PM, OneTimer wrote:


Hello all,

I would like to inquire on the purpose of the two following files:

var\txlog\howl_1.log
Transaction manager log containing entries for prepared transactions and committed transactions. During tm recovery these are matched up and the unmatched ones have their tx commit finished.

var\activemq\journal\control.dat
This is an activemq file that contains persistent messages that have not yet been completely delivered and have not been around too long. I think but don't know that it uses a similar "write only" strategy to the howl log. Messages that aren't delivered fairly promptly are moved to some other persistent storage such as jdbc. ActiveMQ 5 (now used in trunk/2.2) uses a different persistence mechanism.

hope this helps
david jencks



Thank you.
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