amavis ldap trouble in process_request do_search

[Quanah Gibson-Mount]

--On Friday, April 05, 2013 8:16 PM +0200 Mark Martinec 
<Mark.Martinec+amavis at ijs.si> wrote:

> Such low mail rate could be the reason for persistent LDAP sessions
> to time out.  The default is to use persistent SQL and LDAP sessions:
>
>   $database_sessions_persistent = 1; # keep SQL & LDAP sessions open when
> idle
>
> Starting with 2.8.0 this can be turned off:
>
>   $database_sessions_persistent = 0;

See also my work on Net::LDAP.  The newest releases allow turning on 
keepalive (default 2 hours).  I also have a patch for it that, if you are 
on linux, allows tweaking the keepalive parameters for the Net::LDAP 
connection so that you can send keepalive probes much more often than those 
2 hours.

In addition, I started a thread a while back about bugs in Amavis where it 
does not properly handle certain error conditions with persistent 
connections, causing it to not retry connections when it should.  I believe 
I supplied a recommended patch for that as well. ;)

--Quanah


--

Quanah Gibson-Mount
Sr. Member of Technical Staff
Zimbra, Inc
A Division of VMware, Inc.
--------------------
Zimbra ::  the leader in open source messaging and collaboration