High load average mail server 5.3-RELEASE

[Eric Anderson]

Francisco Reyes wrote:
> On Wed, 28 Sep 2005, Eric Anderson wrote:
> 
>> Keep in mind that 5-STABLE, and 6.x (and -CURRENT) have a max of 256 
>> nfsd's, so if you want to go higher, you have to modify a line in nfsd.c.
> 
> 
> So far only a handfull of clients are expected. I am going to start at 
> 10. :-)
> 
> Other than "killall -9 nfsd" is there any other way to restart nfsd?

/etc/rc.d/nfsd restart


> On another thread you mentioned the rsize and wsize and that they should 
> go in the fstab at the client. I got the parameters to work based on a 
> doc on the web, but was wondering about size. 32K a good parameter for 
> an IMAP machine?

Yes, that should work just fine for you.  You may also want to mount the 
filesystem being shared via NFS on the server with the 'noatime' option.


> The setup will be a mail storage server with 3 to 5 machines running 
> Courier IMAP and connecting to a shared mail folder over NFS.

Should be no problem then.  So far, I have had great performance with 
the 5-STABLE branch and 6- branch of FreeBSD for NFS serving.  For an 
IMAP mail store, FreeBSD's near-out-of-box configuration (with the 
tweaks we've already talked about) should work wonders.

Eric



-- 
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Eric Anderson        Sr. Systems Administrator        Centaur Technology
Anything that works is better than anything that doesn't.
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