Re: Occasional service disruptions

2022-06-08 Thread Paul Kudla (SCOM.CA Internet Services Inc.)
ok i do NOT use roundcube however trying to help regarding : > Jun 06 12:01:22 imap(user1)<29639>: Warning: Inotify > instance limit for user 500 (UID vmail) exceeded, disabling. Increase > /proc/sys/fs/inotify/max_user_instances this to me indicates that all users are logging in under one

Re: Occasional service disruptions

2022-06-06 Thread Oscar del Rio
On 2022-06-06 12:59 p.m., Nikolaos Milas wrote: Any other suggestions regarding process_limit and service_count values? Are there any rules of thumb for determining optimal values for these and/or other critical configuration parameters? The limits are explained here:

Re: Occasional service disruptions

2022-06-06 Thread Nikolaos Milas
On 6/6/2022 7:09 μ.μ., Oscar del Rio wrote: increasing inotify settings, as the error message suggests. E.g. in /etc/sysctl.conf Thanks Oscar, I did that. Any other suggestions regarding process_limit and service_count values? Are there any rules of thumb for determining optimal values for

Re: Occasional service disruptions

2022-06-06 Thread Oscar del Rio
On 2022-06-06 11:38 a.m., Nikolaos Milas wrote: Jun 06 12:01:22 imap(user1)<29639>: Warning: Inotify instance limit for user 500 (UID vmail) exceeded, disabling. Increase /proc/sys/fs/inotify/max_user_instances ... Jun 06 12:01:26 imap(user2)<29793>: Warning: Inotify instance limit for user

Occasional service disruptions

2022-06-06 Thread Nikolaos Milas
Hello, On a server with (Postfix and) Dovecot 2.3.18 (on a VM running CentOS 7 - 1 CPU, 5 GB RAM) with the config you will see below, we are facing occasional (infrequent) service disruptions: IMAP service seems unavailable to some users. Jun  6 12:01:25 vweb2 roundcube: <1eecb0d4> IMAP