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Re: 2.1.17 performance issues

To: <quanah@stanford.edu>
Subject: Re: 2.1.17 performance issues
From: "John Madden" <jmadden@ivytech.edu>
Date: Tue, 15 Apr 2003 16:34:08 -0500 (EST)
Cc: <ltierney@mykungfuisthebest.net>, <openldap-software@OpenLDAP.org>
Importance: Normal
In-reply-to: <183532375.1050417243@cadabra.stanford.edu>
References: <55802.168.91.2.45.1050436404.squirrel@mail.ivytech.edu> <53172.64.94.142.144.1050439918.squirrel@webmail.mykungfuisthebest.net> <183532375.1050417243@cadabra.stanford.edu>

>> You were probably running LDBM before with 2.0.x. You may want to try
>> LDBM again if you don't need the transactional integrity of BDB...
>
> We use BDB with a particularly large DB (close to 300,000 people with
> 20+  attributes each), and have no performance problems to speak of.
> Our  systems are heavily utilized 24/7.  There are some basic
> configuration  pieces to BDB that can help improve performance.  I would
> be curious to  know if your slowdowns happen to coincide with write
> activity.  Also, have  you looked at your BDB stats?  Perhaps you have
> not allocated a large  enough cache.

I'll take a look at these things in the future.  For now, I've rolled back
to 2.0.27 on Linux.  Just after I sent the original post, things got so
bad that slapd eventually didn't even respond to a -INT, and I eventually
ended up with corruption (slapcat won't even run to completion).

Thanks,
  John




-- 
John Madden
UNIX Systems Engineer
Ivy Tech State College
jmadden@ivytech.edu

Follow-Ups:
- Re: 2.1.17 performance issues
  - From: xoror@infuse.org

References:
- 2.1.17 performance issues
  - From: "John Madden" <jmadden@ivytech.edu>
- Re: 2.1.17 performance issues
  - From: "Lon Tierney" <ltierney@mykungfuisthebest.net>
- Re: 2.1.17 performance issues
  - From: Quanah Gibson-Mount <quanah@stanford.edu>

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