[horde] Large numbers of open sessions

[Simon Wilson]

Hi list...

I upgraded my Horde install last night, after a couple of months since  
the last upgrade. As a matter or course now I check Sessions, and  
there were 3025 open sessions. Given there are typically only 3 or 4  
users, I was a bit surprised at the number.

The sessions are all (bar a couple) from iOS devices, of which there  
are 5 currently registered to ActiveSync.

In the 12 hours since the upgrade, 4 of those iOS devices (iOS4 and  
iOS5) have added 224 new open sessions.

It would appear that for some reason iOS and Horde ActiveSync are not  
closing and terminating sessions between them. Is there a known issue  
with this, or something I can do to encourage the termination of the  
sessions? If I set $conf[session][timeout] will that assist, and what  
other risks does that bring, given that the config entry says to  
change "with care"?

Simon

--
Simon Wilson
M: 0400 12 11 16