similar to: concurrent IMAP connections (plus 2 easy questions)

We are gradually rolling out Dovecot (IMAP only, no POP3) to our customer base. We are replicating between a pair of CentOS 7 boxes. All has been working wonderfully. However, to be sure our rollout continues to go smoothly, we put together a simple benchmark client program to fire up X persistent IMAP connections (using hundreds of mailboxes) that login, list the folders, select the

We recently switched over mail servers to one running dovecot and postfix on RedHat Enterprise 6. The mail store is NFS on a NetApp filer, the index files are on local disk. We have about 6000 total active users, though not all of them access the system at the same time. All goes well for a while, then we start seeing errors like this in the log: dovecot: imap-login: Error:

Hello there, I’ve configured my server for maximum 50000 open files. [root at scast1 ~]# ulimit -a ... open files (-n) 50000 ... max user processes (-u) 65535 While im doing the Load Test 1, my server only reaches ~1015 listeners. I’ve set this on etc/security/limits.conf : icecast hard nofile 50000 icecast soft nofile 60000 icecast soft nproc 65535 icecast

We have CENTOS 4.7 on DELL server. our /etc/security/limits.conf already setup as: * soft nproc 2047 * hard nproc 16384 * soft nofile 4096 * hard nofile 65536 oracle soft nproc 2047 oracle hard nproc 16384 oracle soft nofile 8192

在 2017年05月25日 18:37, Daniel P. Berrange 写道: > On Thu, May 25, 2017 at 06:20:51PM +0800, dw wrote: >> Hi: >> >> I'm trying to connect with libvirtd with virsh from a remote PC,but only >> can establish 1000 connections. >> >> If try more connections,prompt: >> >> "error: failed to connect to the hypervisor >>

On 02/03/2015 03:35 PM, Ron Cleven wrote: > We are gradually rolling out Dovecot (IMAP only, no POP3) to our > customer base. We are replicating between a pair of CentOS 7 boxes. All > has been working wonderfully. However, to be sure our rollout continues > to go smoothly, we put together a simple benchmark client program to > fire up X persistent IMAP connections (using hundreds

On 20 Sep 2016, at 3:10, Chen Wei Hsu wrote: > Hi all, > > I am trying to stream for over 1k users on Ubuntu 16.04. I notice that > when > stream connection is over 1024, it get warning like this: > > WARN connection/_accept_connection accept() failed with error 24: Too > many > open files > > Tried these configs and reboot, it won't work! >

It all looks like a workarounds. I would suggest using a proper solution, such as systemd, that is present in ubuntu 16.04 by default, and where you can raise system limits per system service just by tweaking its config file. m. On 8 października 2016 at 11:37:59, Chen Wei Hsu (cwhsu1984 at gmail.com) wrote: Hi all, I am trying to stream for over 1k users on Ubuntu 16.04. I notice that when

On Thu, May 25, 2017 at 06:51:40PM +0800, dw wrote: > 在 2017年05月25日 18:37, Daniel P. Berrange 写道: > > On Thu, May 25, 2017 at 06:20:51PM +0800, dw wrote: > > > Hi: > > > > > > I'm trying to connect with libvirtd with virsh from a remote PC,but only > > > can establish 1000 connections. > > > > > > If try more

Hi all, I am trying to stream for over 1k users on Ubuntu 16.04. I notice that when stream connection is over 1024, it get warning like this: WARN connection/_accept_connection accept() failed with error 24: Too many open files Tried these configs and reboot, it won't work! /etc/pam.d/common-session session required pam_limits.so /etc/sysctl.conf fs.file-max = 100000

Hi Louis, Thanks for information, find it sometimes is a real challenge. Would you please share your how to link? I wish to read it. For the .local domain I suppose I have nothing to do. This is a running windows Active Directory and it is not possible to change domain suffix. Here is my /etc/hosts 127.0.0.1 localhost.localdomain localhost 10.254.104.8 wdc04.aa.local wdc04 10.254.105.208

Hello list, i run here an large mailsetup with some million mailboxes and got strange performance problems, cause i think i have overseen or forgotten an simple setting. Here are some details: 21 CentOS 7 Servers with dovecot 2.2.25 and ldap userdb/passdb via socket behind an hardware loadbalancer. The storage behind is an ISCSI Storage with 4 10Gbit/s multipath paths, splitted up to 10 TB

I am using CALDERA OPENLINUX 3.1.1 with latest patches and Samba 2.2.5 on it. But recently I start to receive linux error "kernel: VFS MAX FILES REACHED" and Samba error "Too many open files". After it I tuning linux increase open files descriptors in /etc/security/limits.conf * soft nproc 4094 * hard nproc 16384 * soft

We tested dovecot for a fair amount of time and decided finally to put it into production under CentOS 7 (we are running 2.2.10). I just joined the list, so I apologize for what is probably a question that has been answered many times, but I was wondering if there are any plans to implement replication among 3 or more servers (all "masters", as with 2)? As best as I can tell,

Sure there is, Install debian, follow my howto and you will have success. Just, your using an .local domain, and thats a reserved name for apples mDNS (zeroconf) And should not be used. ( same for .lan ) https://wiki.samba.org/index.php/FAQ#Can_I_Use_the_.local_Top-level_Domain_for_My_AD_DNS_Zone.3F So the info is good, thats not the problem, finding it, is. Can you post your /etc/hosts

Hi I Dont understand or? I im thinking wrong: process_limit = 25000 Older: #fs.inotify.max_user_watches= 8192 #fs.inotify.max_user_instances = 16384 New: fs.inotify.max_user_instances = 8192 ? fs.inotify.max_user_watches= process_limit x 2 + fs.inotify.max_user_instances fs.inotify.max_user_watches= 58192 On 31.03.2020 13:44, Aki Tuomi wrote: > I would prefer replies on the list... =)

Maybe I have multiple problems - dunno. I've started seeing the following log lines: Mar 7 07:46:22 bubba dovecot: imap(dmiller at amfes.com): Warning: Inotify instance limit for user 5000 (UID vmail) exceeded, disabling. Increase /proc/sys/fs/inotify/max_user_instances max_user_instances is currently 128. I've tried stopping and restarting dovecot - the message immediately returns.

Dear Samba experts, I have 10 rpcd_spoolss processes running. Here's the output o prlimit for one of them: # prlimit -p628 RESOURCE DESCRIPTION SOFT HARD UNITS AS address space limit unlimited unlimited bytes CORE max core file size 0 unlimited bytes CPU CPU time unlimited

I'm seeing this message in my /var/log/maillog: May 26 12:35:00 agencymail dovecot: IMAP(info at example.com): Inotify instance limit for user exceeded, disabling. Increase /proc/sys/fs/inotify/max_user_instances I rummaged through google, and found : http://www.dovecot.org/list/dovecot-cvs/2008-May/011132.html which says I need to increase /proc/sys/fs/inotify/max_user_instances (no

Hello all, could anyone explain the exact meaning of parameter nproc? Why different values of nproc give so different critical values, i.e. meanL2BB$computeCritval(0.05,nproc=3) [1] 0.9984853 meanL2BB$computeCritval(0.05,nproc=1) [1] 0.4594827 The strucchange-package description gives "integer specifying for which number of processes Brownian motions should be simulated" - do I need