--On Tuesday, May 26, 2009 8:35 PM -0700 Howard Chu<hyc@symas.com>
wrote:
For example, we may have a cluster of servers in MMR with a pool of
other
servers operating as slaves. We'd want the syncprov overlay active
on all
of the masters, the syncrepl consumer active on all of the servers,
and
the chain overlay active on all of the slaves. Setting
olcServerMatch on
the syncprov and chain overlays would allow things to behave as
desired,
without needing to create a parallel config tree just for the
slaves.
Comments?
I like it. One thing we've needed to do in the past is drop the
replication configuration portions of a master (taking it to
single-server
mode). This would allow that. I would note it may be common (I
certainly
do so) to run the syncprov overlay on the replica as well, at least in
a
glue'd environment.
It sounds like it gracefully solves the ability of keeping both master
and
replica configurations around for the most part. What still remains
sticky
is ACLs. There are plenty of valid reasons for the master to have
very
different ACLs than the replicas do.