Hi, I've read a few of the recent posts about 2-phase-commit support. I noticed some discussion related to persisting the state of in-doubt transactions, and thought you might be able to take advantage of work that has been going on in the area of transaction logs.
I'm working on a project (howl.objectweb.org) to implement a journal designed specifically to support transaction managers 2PC protocol. The project was concieved during a meeting between ObjectWeb and Apache Geronimo developers last year at ApacheCon 2003. The journal is currently used by the Apache Geronimo TM, Codehaus ActiveMQ, and ObjectWeb JOTM projects. Although the main objective is to support TM 2PC protocol, it could be used as a database before-image journal as well. The code is BSD licensed. More at http://howl.objectweb.org. Also, with respect to the requirements for the 2PC protocol, there is an excellent discussion by Mike Spille. Mike wrote a series of articles titled "XA Exposed". You can review the articles at http://www.theserverside.com. Search for "xa exposed". If any of you will be at ApacheCon 2004 next month, I'm giving a paper on the HOWL journal. I'll be happy to talk with you there. Michael Giroux, objectweb.org ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
