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...ct_stats.s wait4 S 17352 ? 00:00:00 tee pipe_wait R 17356 ? 00:00:00 ps - XXX PROCESS STRUCTURE ===================== S UID PID PPID C PRI NI RSS SZ WCHAN STIME TTY TIME CMD S root 14 0 0 75 0 0 0 schedu Apr01 ? 00:10:26 [kupdated] S root 13 0 0 75 0 0 0 bdflus Apr01 ? 00:00:06 [bdflush] S root 12 0 1 75 0 0 0 krefil Apr01 ? 00:26:38 [krefilld] S root 11 0 0 75 0 0 0 krecla Apr01 ? 00:00:27 [kreclaimd] S root...

...computer and then try to use read.csv() 1 Housing Stock (UV53) 2 3 4 All Household Spaces 5 Occupied Household Spaces 6 Unoccupied Household Spaces 7 Unoccupied Household Spaces: Second residence / holiday accommodation 8 Unoccupied Household Spaces: Vacant household space 9 Housing Stock (UV53), Apr01 10 Housing Stock (UV53), Apr01 11 Housing Stock (UV53) 12 This material is Crown Copyright. Users are granted permission to reproduce Crown Copyright material provided that a Click-Use Licence has been obtained from HMSO. The Click-Use Licence can be obtained from http://www.clickanduse.hmso.gov.uk...

Hello, Just to follow up on this, we've hit over 16k (default client limit here) hibernated sessions: --- dovecot 119157 0.1 0.0 63404 56140 ? S Apr01 62:05 dovecot/imap-hibernate [11291 connections] dovecot 877825 0.2 0.0 28512 21224 ? S Apr23 1:34 dovecot/imap-hibernate [5420 connections] --- No issues other than the minor bug I reported, CPU usage is slight (at most 2% of a CPU core), memory savings are immense, so I'm a...

...st majority of IDLE processes will be in hibernated at any given time and thus not only using a fraction of the RAM otherwise needed but also freeing up process space. Real life example: 240 users, 86 imap processes (80% of those not IDLE) and: dovecot 119157 0.0 0.0 10452 3236 ? S Apr01 0:21 dovecot/imap-hibernate [237 connections] That's 237 hibernated connections and thus less processes than otherwise. I assume that given the silence on the ML what we are going to be the first hibernate users where the term "large scale" does apply. Despite that I have some qu...

...t; at any given time and thus not only using a fraction of the RAM otherwise > > needed but also freeing up process space. > > > > Real life example: > > 240 users, 86 imap processes (80% of those not IDLE) and: > > dovecot 119157 0.0 0.0 10452 3236 ? S Apr01 0:21 > dovecot/imap-hibernate [237 connections] > > That's 237 hibernated connections and thus less processes than otherwise. > > > > > > I assume that given the silence on the ML what we are going to be the > > first hibernate users where the term "large...

...> need to have imap {service_count=1} - i.e. I have a lots of imap > processes running. > We peaked out at 65k imap processes before upgrading to a version where imap-hibernate more or less works, but we're using a common ID. --- dovecot 119157 0.1 0.0 59364 52216 ? S Apr01 48:25 dovecot/imap-hibernate [15137 connections] --- The service_count parameter in this context is not doing what you think it does, I have it at 200 these days and that will allow imap (or pop3) processes to be recycled (they are labeled with "idling" when waiting for a new client), n...

On 24 Apr 2017, at 4.04, Christian Balzer <chibi at gol.com> wrote: > > > Hello, > > Just to follow up on this, we've hit over 16k (default client limit here) > hibernated sessions: > --- > dovecot 119157 0.1 0.0 63404 56140 ? S Apr01 62:05 dovecot/imap-hibernate [11291 connections] > dovecot 877825 0.2 0.0 28512 21224 ? S Apr23 1:34 dovecot/imap-hibernate [5420 connections] > --- > > No issues other than the minor bug I reported, CPU usage is slight (at > most 2% of a CPU core), memory savings...

...;chibi at gol.com <mailto:chibi at gol.com>> wrote: >> >> >> Hello, >> >> Just to follow up on this, we've hit over 16k (default client limit here) >> hibernated sessions: >> --- >> dovecot 119157 0.1 0.0 63404 56140 ? S Apr01 62:05 dovecot/imap-hibernate [11291 connections] >> dovecot 877825 0.2 0.0 28512 21224 ? S Apr23 1:34 dovecot/imap-hibernate [5420 connections] >> --- >> >> No issues other than the minor bug I reported, CPU usage is slight (at >> most 2% of a CPU co...

...will be in hibernated > at any given time and thus not only using a fraction of the RAM otherwise > needed but also freeing up process space. > > Real life example: > 240 users, 86 imap processes (80% of those not IDLE) and: > dovecot 119157 0.0 0.0 10452 3236 ? S Apr01 0:21 dovecot/imap-hibernate [237 connections] > That's 237 hibernated connections and thus less processes than otherwise. > > > I assume that given the silence on the ML what we are going to be the > first hibernate users where the term "large scale" does apply. >...

Hi everyone, I'm running dovecot with quite a lot of users and lots of active imap connections (like 20'000). I'm using different user IDs for users, so I need to have imap {service_count=1} - i.e. I have a lots of imap processes running. Everything works fine, until I reload dovecot configuration. When that happen, every client is forced to relogin in the same time and that

...thus not only using a fraction of the RAM otherwise > > > needed but also freeing up process space. > > > > > > Real life example: > > > 240 users, 86 imap processes (80% of those not IDLE) and: > > > dovecot 119157 0.0 0.0 10452 3236 ? S Apr01 0:21 > > dovecot/imap-hibernate [237 connections] > > > That's 237 hibernated connections and thus less processes than otherwise. > > > > > > > > > I assume that given the silence on the ML what we are going to be the > > > first hibernat...

Hello, Dovecot 2.2.27 (Debian Jessie backports). When issuing a "doveadm kick" for a specific user I was greeted by: --- "warning: other connections would also be kicked from following users:" --- and a list of 22odd thousand users. As it turns out, kick wants to smack the hibernation proces(ses) that have hibernated sessions for this user, obviously the wrong approach here.

On 6 Apr 2017, at 21.14, Mark Moseley <moseleymark at gmail.com> wrote: > >> >> imap-hibernate processes are similar to imap-login processes in that they >> should be able to handle thousands or even tens of thousands of connections >> per process. >> > > TL;DR: In a director/proxy setup, what's a good client_limit for >