Hi,
I'm learning all about SOGo, and I've been able to setup two different
working scenarios (local LDAP / lan AD), and I'm quite happy with what I
see, but I have a slight but noticeable slow behaviour of the web
interface, comapred to online demo... and I cant find what is causing
it, and then... how to solve. :)
about hardware:
* the sogo server is a kvm virtual machine
* hypervisor is proxmox running on IBM x3650M2 nodes
* nodes have Intel(R) Xeon(R) CPU E5520 @ 2.27GHz (2x) and 20GB RAM each.
* vm has
- 2GB RAM,
- 1 cpu/4 cores,
- virtio LAN, virtio storage
- vm storage is iSCSI (1GB eth)
about software:
* the base system is debian 7.5
* sogo 2.2.3-1
* postfix 2.9.6-2
* dovecot 2.1.17-2
* openldap 2.4.31-1+nmu2
* apache 2.2.22-13+deb7u1
* mysql-server 5.5.37-0+wheezy1
As I said, I have two working setup
setup A: sogo & dovecot authenticate on lan AD server (w2003)
setup B: sogo & dovecot authenticate on local slapd server (JohnDoe/JohnDoe)
Both work (even it took me a while to figure out how to ;D) but I feel
that the mail section is kinda slow, opening the voarious folders takes
a few seconds, maybe 2-3. Not something unusable but... feels
sluggish... I also tried to enable auth_cache_size and auth_cache_ttl,
fearing there could be some auth delay, but nothing changed.
So I tried online demo, and I noticed that was less "slow" than mine,
local vm! In particular, switching from one mail folder to another takes
less than a second, on the online demo, much less than my local install...?
I wondered what it could be the reason but ended up downloading the ZEG
appliance, and created another vm with identical hardware (same network
storage box but on NFS, since iSCSI is block storage and can't hold vmdk
images)
well, this is snappy at least as the online demo, if not more (probably
obviously)! So, I guess that my fears of a slow access to vm disk due to
hypervisor are out of game here... I noticed that ZEG appliances has
Cyrus instead of Dovecot, so I am not able to check different settings
from my install...
Since I'm a noob on this system, can anyone point me to what can bring
me those snappy mail performances?
Any help would be greatly appreciated, thanks!
Feel free to ask me more info & tests...
Marco
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*Marco*
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