On Mon, 2008-10-27 at 09:51 -0700, Brandon Lamb wrote:
Two servers were working fine and then all of a sudden this morning bam 500 load and theres a million dovecots and tons of these lines in the logs.
I guess the load is about I/O load, not CPU load?
It is like everyone gets up at exactly 8:30 and hits the pop3 server at once.
Anyway, dovecot 1.1.5, nfs mount, debian lenny/sid amd64, 2.6.26-1-amd64 i had the performance mode options for login configured, i just set back to the single process per login though, I think that hasnt fallen over that way but I really dont remember anymore. I included the dovecot -n using the suggest performance login settings? Do I have something totally out of whack?
If the virtual -> physical size change didn't help, I guess that wasn't the problem then. Another possibility could be Maildir++ quota working non-optimally. You could try temporarily disabling it for POP3 to see if that helps.
dotlock_use_excl = yes fsync_disable = no lock_method = fcntl
Could I be running into some nfs locking issue? Wouldnt a reboot clear any nfs um, handles or whatnot that the mail server(s) might have? Do these look like the right values for using NFS? Should I try using lock_method = dotlock instead?
I guess you could try lock_method=dotlock too.