Christopher Chan wrote:
The service provider I used to work for tried openldap in 98. They
got burned big time. Maybe it is up to the task today. What kind of
hardware, though, would you use for one that the OP indicates will
get a lot of writes? Everything I have read says LDAP is not for high
write problems.
1998 was a long time ago. Red Hat (fedora) directory server has
claimed good performce for several years now.
http://directory.fedoraproject.org/
Yeah, well, I guess the Fedora Directory server is unlikely to drop its
entire datastore and will actually keep running but hey, are you going
to migrate back to ldap if you have a system that is distributed across
different mysql boxes running on cheap boxes and does its job?
Yes, I've had enough trouble with mysql that I'd look for any
alternative, but to be far that was a few years back too.
But the openldap guys think they are better - see page 33 of the pdf
linked from this page:
http://www.mail-archive.com/ldap@xxxxxxxxx/msg01151.html
(22000 queries/sec, 4800 updates/sec on a terabyte database with 150
million entries - but I think the test box had 480Gigs of RAM...)
There you go. If you have the hardware, you can do openldap. 480Gigs?
Did you add an extra zero?
I copied it from this email post.
http://www.redhat.com/archives/fedora-directory-users/2007-July/msg00113.html
Does anyone have enough faith in a free NFS server to use it in this
scenaro these days? How about opensolaris on top of zfs?
I would say. No comment on opensolaris in this scenario but I am
happy with zfs as an offsite online backup solution.
Are you using the incremental send/receive operation for this?
Huh? This is just rsync for the vpopmail maildir, user home directories,
pervasive database files and scp for an Exchange backup file and then
snapshotting on the zfs volume for the vpopmail and user home
directories. Nothing heavy. What is this incremental send/receive
operation that you are talking about?
zfs has the ability to make filesystem snapshots, then back them up with
a send/receive operation. See bottom of this page
http://docs.sun.com/app/docs/doc/819-5461/ftyxi?a=view. I haven't used
it myself but it sounds handy.
--
Les Mikesell
lesmikesell@xxxxxxxxx
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
