If you want a faster Kolab, read this.

[Paul Bronson]

Hi guys, (happy labor day!)

As you've probably seen me asking a thousand questions about slowness for
my brand new kolab 3.4, here's what my few weeks of research has come up
with... And hopefully this will work for all of you as well, or something
you can try and replicate on your end:

A few kolab plugins are initiating an imap connection every time the user
simply tries to read a message. Those plugins are:

kolab_addressbook
kolab_notes
kolab_tags
tasklist

If you disable ALL (not one) of these plugins, watch how magically fast
clicking on a message is. You will also notice logs in your var/log/maillog
such as this disappear:


Sep 7 13:59:55 es1 imap[18657]: USAGE tperson at domain.info user: 0.004000
sys: 0.007999

Sep  7 14:00:55 es1 imap[18657]: login: localhost [::1]
tperson at domain.info PLAIN User logged in
SESSIONID=<es1.domain.com-18657-1441648854-1-17261199637593060143>

These above log entries will however happen when you go to different
folders, but simply just single clicking a message to see it on the preview
pane will no longer log the entry.


I have also seen a HUGE improvement from memcache as well. (now that
instead of opening a new connection, it can now actually check against
memcache for a cache'd version) I also went to vast lands to try to make
cyrus faster thinking that was the problem, but I think this was the key!


I've logged a bug for this:

https://issues.kolab.org/show_bug.cgi?id=5219


Hopefully this will be an easy fix for the team!
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