> On 18/07/2023 09:18 EEST Joseph Tam <jtam.h...@gmail.com> wrote: > > > https://www.mail-archive.com/dovecot%40dovecot.org/msg85850.html > > > From: D D <pierre.alle...@gmail.com> > > > We're seeing a ton of imap-login processes running even when using high > > performance mode > > (https://doc.dovecot.org/admin_manual/login_processes/#high-performance-mode). > > According to the docs: > > > > "process_min_avail should be set to be at least the number of CPU cores in > > the system, so that all of them will be used. Otherwise new processes are > > created only once an existing one’s connection count reaches client_limit" > > > > We have process_min_avail=4, client_limit=0 and > > default_client_limit=200000. So we'd expect seeing only 4 imap-login > > processes serving a ton of connections each. Yet, we see thousands of > > imap-login processes (more than half of all the imap processes): > > ... > > > > Is having so many imap-login processes normal with our config? Did we > > misunderstand the docs or is there something wrong here? > > > > > > default_client_limit = 1048576 > > default_process_limit = 200000 > > > > service imap-login { > > # client_limit = 0 # default is 0 > > # process_limit = 0 # default is 0 > > service_count = 100 > > This service limit might be your culprit. > > I wrote about the strange interaction between service_count and > process_limit here: > > https://www.mail-archive.com/dovecot%40dovecot.org/msg85850.html > > This gotcha should really be documented. > > Joseph Tam <jtam.h...@gmail.com>
Did you check the https://doc.dovecot.org/configuration_manual/service_configuration/#service-limits to see if it is documented? A pull request would be appreciated if it's still wrong. Aki _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-le...@dovecot.org
