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Re: OpenLDAP freezes and doesn't respond

To: Quanah Gibson-Mount <quanah@zimbra.com>
Subject: Re: OpenLDAP freezes and doesn't respond
From: Cyril Grosjean <cgrosjean@janua.fr>
Date: Mon, 25 Jul 2011 18:38:10 +0200
Cc: openldap-technical@openldap.org
In-reply-to: <F73321368775AC87D15D26B8@[192.168.1.2]>
References: <CAOuB_js7BdV4Z_Rb+XnM3j0RV6woR-J0wrZ4QsmHi7kmeDcLtw@mail.gmail.com> <F73321368775AC87D15D26B8@[192.168.1.2]>
User-agent: Thunderbird 2.0.0.24 (X11/20101027)

In case it could benefit to anyone, the freeze seems to come whenthere're "lots of" "deferring operation: binding" messagesin the slapd logfile. So, we investigated the corresponding clientapplication and found the way it dealt with LDAP connections

could be a problem with OpenLDAP (it was not with Sun DS 5.2 !).

So, we're now in the process of rewriting the client side LDAPconnections management with a pool, so that at least we don't

see anymore "deferring operation: binding" messages.

By the way, are there well known best practices and pointers to writeclean (from a connection management point of view) LDAP clients,or at least best practices or "known bad practices" with regards to theway OpenLDAP deals with connections ?

References:
- OpenLDAP freezes and doesn't respond
  - From: Cyril GROSJEAN <cgrosjean@janua.fr>
- Re: OpenLDAP freezes and doesn't respond
  - From: Quanah Gibson-Mount <quanah@zimbra.com>

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