[horde] Sessions consuming CPU

[Simon Wilson]

> Disable activesync in Horde Configuration and the problem goes away.
>
> It would appear to be related to the iPhones / iPad sessions  
> somehow. Nothing has changed though - not on the phones, not on the  
> server. Just since 7.10 this morning getting the CPU utilisation  
> from iOS sessions.
>
> Simon
>

Remove session files, and it comes back.
Restart Activesync, and it comes back.
Reprovision the iOS devices, and it comes back.
REMOVE the iOS devices within Horde Administration, restart httpd  
after removing all session files, and let them re-establish their  
connections, which they do automatically, and the problem has been  
solved.

So killing sessions has not fixed it this time, but removing the  
ActiveSync devices did.

2 days ago, 2 of them were upgraded to iOS 5.0.1, that's the only  
change. The change to iOS 5 happened a week or so ago and this did not  
happen then.

Simon.