From: Alexey Verkhovsky <alex@...>
Date: 2005-01-19T08:05:59+09:00
Subject: Re: Madeleine snapshots (was: [ANN] Pimki 1.4)

Esteban Manchado Vel�zquez wrote:

>   I changed SNAPSHOT_INTERVAL to one hour, copied the data and all of that,
>and it seems to work fine.
>  
>
I've been fiddling with MadeleineService in Instiki - it is somewhat 
smarter now.
See http://dev.instiki.org/changeset/7 and 
http://dev.instiki.org/changeset/22

Madeleine people: please tell me if I'm doing something wrong in those 
changesets, especially the first one.
If not, maybe you should use that code as an example of what a real-life 
thread for snapshot taking should look like?

There still one potentially big story missing - namely, a signal handler 
for graceful shutdown. I expect there must be moments during 
snapshot-taking when that thread is in critical state (in the sense that 
killing it would result in snapshot corruption). But I haven't looked at 
that aspect seriously yet.

>   BTW, when I only had command logs, it seemed to lose revisions (in the
>sense that should be more revisions available, but the available ones seem to
>be right).
>
>   Thank you, Assaph,
>  
>
There was a trivial bug in Instiki that does it, especially on a page 
that is edited many times by the same person. See 
http://dev.instiki.org/changeset/19

-- 
Best regards,

Alexey Verkhovsky

Ruby Forum: http://ruby-forum.org        (moderator)
RForum:     http://rforum.andreas-s.net  (co-author)
Instiki:    http://instiki.org           (maintainer)