Re: MURDER : tuning for increasing load

2005-05-24 Thread John Madden
>In fact, 100 000 users represent more or less 600 000 folders & > subfolders. The choice of murder is high availability, even if one > backend falls down, only 25% of the users will loose the mail service. I see. > Any idea on optimizing Berkeley DB cache? I assume reading berkeley

Re: MURDER : tuning for increasing load

2005-05-24 Thread Simon Matter
> John Madden wrote: >>>I have to deal with increasing charge of by now 500 users that will grow >>>up to 100 000. >>>All mailboxes exist, for a 65Mb mailboxes.db on mupdate >> >> Is murder even necessary for such a configuration? Based on the numbers >> on Cyrus' >> pages, I assumed 200k accounts

Re: MURDER : tuning for increasing load

2005-05-24 Thread LaurentG
In fact, 100 000 users represent more or less 600 000 folders & subfolders. The choice of murder is high availability, even if one backend falls down, only 25% of the users will loose the mail service. Each server has 2 CPU & 5 GB RAM. Any idea on optimizing Berkeley DB cache? Laurent. Joh

Re: MURDER : tuning for increasing load

2005-05-24 Thread Etienne Goyer
John Madden wrote: I have to deal with increasing charge of by now 500 users that will grow up to 100 000. All mailboxes exist, for a 65Mb mailboxes.db on mupdate Is murder even necessary for such a configuration? Based on the numbers on Cyrus' pages, I assumed 200k accounts on one big, beefy

Re: MURDER : tuning for increasing load

2005-05-24 Thread John Madden
> I have to deal with increasing charge of by now 500 users that will grow > up to 100 000. > All mailboxes exist, for a 65Mb mailboxes.db on mupdate Is murder even necessary for such a configuration? Based on the numbers on Cyrus' pages, I assumed 200k accounts on one big, beefy box would be ok

MURDER : tuning for increasing load

2005-05-24 Thread LaurentG
Hello, running CyrusIMAP 2.2.8 on Debian Sarge, with a murder of 2 frontends & 3 backends, (4 & 4) at the end. I have to deal with increasing charge of by now 500 users that will grow up to 100 000. All mailboxes exist, for a 65Mb mailboxes.db on mupdate 1- Mupdate slows down informing Frontend