'Re: [nssldap] LDAP performance issues'

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List:       nssldap
Subject:    Re: [nssldap] LDAP performance issues
From:       "Matthew B. Brookover" <mbrookov () mines ! edu>
Date:       2005-10-16 14:46:34
Message-ID: 1129473994.12761.1.camel () mickey ! mattbrookover ! com
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I will give this a try next time.

Thanks.

Matt

On Sat, 2005-10-15 at 17:41 -0400, Adam Tauno Williams wrote:

> > The other problem was with logging to syslog.  I had the log level set 
> > high while testing.  Syslog was slowing slapd.  Setting loglevel to 0 
> > solved it.  I tend to be selective when picking what to log now.
> 
> You can prepend each log file in /etc/syslog.conf with a hyphen to 
> disable fsync()-after-each-message:  -/var/log/ldap vs. /var/log/ldap. 
> With fsync() disabled you should be able to sustain robust logging with 
> very little performance impact.

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I will give this a try next time.<BR>
<BR>
Thanks.<BR>
<BR>
Matt<BR>
<BR>
On Sat, 2005-10-15 at 17:41 -0400, Adam Tauno Williams wrote:
<BLOCKQUOTE TYPE=CITE>
<PRE>
<FONT COLOR="#000000">&gt; The other problem was with logging to syslog.  I had the log level set </FONT>
<FONT COLOR="#000000">&gt; high while testing.  Syslog was slowing slapd.  Setting loglevel to 0 </FONT>
<FONT COLOR="#000000">&gt; solved it.  I tend to be selective when picking what to log now.</FONT>

<FONT COLOR="#000000">You can prepend each log file in /etc/syslog.conf with a hyphen to </FONT>
<FONT COLOR="#000000">disable fsync()-after-each-message:  -/var/log/ldap vs. /var/log/ldap. </FONT>
<FONT COLOR="#000000">With fsync() disabled you should be able to sustain robust logging with </FONT>
<FONT COLOR="#000000">very little performance impact.</FONT>
</PRE>
</BLOCKQUOTE>
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