[jboss-dev-forums] [Design of Messaging on JBoss (Messaging/JBoss)] - Re: Transactional Summary & Holes on the journal (Repost)

clebert.suconic@jboss.com do-not-reply at jboss.com
Wed Jun 24 09:22:35 EDT 2009


I'm writing the number of records at where the commit is located.

Example 1:

File1: 5 records
File2: 3 records
File3: 1 records
File4: 4 records and 1 commit


The commit will be:
COMMIT, 4

I won' t need to inform the other files on the summary any more, since I'm guaranteeing they are synced before writing the COMMIT. The only place I could have a hole now is at the current file.


Example 2:

The user took some time to commit, and there are no records at the top:


File1: 5 records
File2: 3 records
File3: 1 records
File4: 4 records
- User takes 2 hours to commit it:

File 10: Commit Record alone

The commit record on that case will be:

COMMIT, 0


what is a valid approach,

And compacting would work fine with this approach also.

View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4239760#4239760

Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4239760



More information about the jboss-dev-forums mailing list