Hello,
Since I have not been able to tackle the excessive CPU usage of spamd on a
single machine (see the thread "spamd still burning CPU in 3.0.1"), I am
hoping that the people who said I am simply maxing out spamd's capabilities
are right: I am moving to a multiple box solution. I will be putting a
machine online that will likely do little else than run spamd. I may or may
not continue to run a couple spamd children on the original machine, just to
help out. I have two questions:
1) Is it a waste of a whole machine to just run spamd? I suppose I will be
watching its resource usage, but am wondering if it will be available to be
used as a MySQL server and/or something like NFS.
2) I am clueless about how to serve spamd in more than one place. How do I
tell spamc that I have more than one spamd listening for requests in more
than one place? Also, one spamd will be running a lot more children and will
thus take more requests -- do I somehow (how???) need to load balance or will
it happen "automatically" by simply seeing that one of my machines' spamd
currently has no available children? Uhhhh, I am lost here. Anyone know of
any good reading I can do? Links? Tips? How-to's?
Reading man spamc, I see:
-d host In TCP/IP mode, connect to spamd server on given host (default:
localhost).
If host resolves to multiple addresses, then spamc will fail-over
to
the other addresses, if the first one cannot be connected to.
So do I just do this:
/usr/bin/spamc -u <username> -d 127.0.0.1 123.45.6.789
Again, is load balancing going to be an issue with this configuration?
Remember, one of these addresses will be underpowered compared to the other.
Ah, then this:
-H For TCP/IP sockets, randomize the IP addresses returned from a DNS
name lookup (when more than one IP is returned). This provides for a
kind of hostname-base load balancing.
I am not sure how to use this one, but it looks a little more like what I
want. Can anyone offer pointers on how to implement this?
TIA!
__________________________________
Do you Yahoo!?
Check out the new Yahoo! Front Page.
www.yahoo.com
