Cyrus IMAP 2.3.9 on Solaris 10 with ZFS and SAN

[Adam Stephens]

Wesley Craig wrote:
> On 21 Sep 2007, at 13:36, Pascal Gienger wrote:
>   
>> A proxy would mean another possibility of failure. How stable is  
>> that proxy daemon? Another two boxes for redundancy?
>>     
>
> UMich runs the caching proxy on the host running httpd/webmail.  up- 
> imapproxy is very stable.
>
>   

We found the opposite; proxies for busy servers would segfault every 
half-hour or so. It pretty much crippled our webmail system.

The problem was that up-imapproxy's SSL code wasn't thread safe, and we 
were running on parallelised systems (SPARC T2000s). If you're going to 
run it in a similar environment, be sure to use 1.2.6rc1, which has our 
fixes.

Adam.

-- 
--------------------------------
Adam Stephens
Network Specialist - Email & DNS
adam.stephens at bristol.ac.uk