[imp] login takes more than 20 seconds

[Eric Jon Rostetter]

Quoting Ferdinand Gruber <grfe at hs-schallerbach.at>:

> We use Dovecot IMAP server. But in tried also Pop. The login is not
> really faster.

If you are saying that non-IMP logins are also slow, then the problem is
outside IMP/Horde.  If you are saying something else, then I'm not sure
what you are trying to say.

> We have MySQL as database backend.

Could be a bottleneck also...

> But I think that there cannot be much activity because the database is
> small. I deleted the database and set up horde new yesterday and login
> is not faster than before. The database is nearly empty.

If you have more IMP connections to the DB than you have DB connections
allowed, then the sessions will stall and things will be slow...
Or, if the DB machine is just slow for some reason, things could be slow.
Probably other things too.

> May be there is some configuration problem with MySQL.

Could be...  Don't know.

> Because other applications, like wordpress, seem also to take a long
> time to start.

Sounds like maybe a networking issue connecting to the DB?

> Could the firewall be the reason. I'll try to switch off the firewall
> and look if the performance changes.

Also check tcp_wrappers if using them.  An in.authd call could cause a
noticed delay in the connections for example.  That could be caused by
connections to the DB, to dovecot, or both...

> Ferdinand

-- 
Eric Rostetter
The Department of Physics
The University of Texas at Austin

Go Longhorns!