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RE: Openldap2.4.16 performance issue
I need to tune any parameter in DB_CONFIG file for this or not? Because I am using default DB_CONFIG file.
Thanks & Regards,
Senior Unix Administrator,
(SOA Support Team)
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From: openldap-technical-bounces@OpenLDAP.org [mailto:openldap-technical-bounces@OpenLDAP.org] On Behalf Of Dieter Kluenter
Sent: Tuesday, August 17, 2010 1:12 PM
Subject: Re: Openldap2.4.16 performance issue
"Singh, Devender (GE Capital, consultant)" <Devender.Singh2@ge.com> writes:
> Hi All,
> I need help for openldap slapd 200% cpu utilization issue.
> I have configured three openldap servers(2 Masters and 1 Slave). I have
> configure PEN load balancer for failover setup on 2 master openldap servers.It
> means application server first of all hit the loadbalancer port and than PEN LB
> will forwad that request to Master 1 or 2 openldap server.
> Hardware configuration on all boxes:
> OS: RHEL5(x86_64)
> RAM: 2GB
> Number of CPU: 2(Intel(R) Xeon(R)2.00GHz)
> Number of BDB databases: 2
> Number of users : 830000
> Number of dns: 830000
> Number of users: 2000
> Number of dns: 800000
> My Application1 using Databse1 and Application2 using Databse2.
> Application2 just authenticating the users and store last 10 password history
> only, It means Application1 is not using openldap too much.
> In Application2(90% dependent on openldap) every user have 1000+ sub leafs
> entries. when I want to do major changes(number of leafs write) into this, it.s
> got hanged and got socket closed error in application logs and CPU utilization
> goes 200% and RAM 52%. My DB_CONFIG file is below:
Most likely to many concurrent write operations. You should move the
db logfiles onto a different disk.
Dieter Klünter | Systemberatung
GPG Key ID:8EF7B6C6