20 Feb
2007
20 Feb
'07
10:53 a.m.
I have been using dovecot 1.0alpha4 + deliver/sieve in production for a few accounts (400'000).
After testing 1.0.rc22 I decided to upgrade one of the imap servers...
And... what a mess !
The server just gets unusable. I don't know why but with new release, it just overloads the system with I/O. It turns that with 1.0.rc22 I get 15Mo/s read on disk average, without any reason. What did really change ? How come a system (with a few thousand accounts) works perfectly and then with 1.0.rc22 gets unusable with a load approaching 300 ?
If you have any ideas...