On Wed, 22 Jun 2016, Joe Blow wrote:
If you're trying for true HA/prod setup, I'd suggest looking at
DRBD+pacemaker+corosync+crmsh+keepalived+rsyslog with local storage.
Why would use keepalived as well as pacemaker/corosync? It seems to me that you
would use one or the other.
I've given serious consideration to setting up pacemaker/corosync between my two
archive servers (in two different datacenters) and having the 'active' one copy
data to the 'inactive' one as the logs roll, just so that the arcives are
identical so that rsync can patch gaps (and when it can't deliver the messages
to the remote system, keep both copies as they will be different)
I haven't completely satisfied myself that I cover all failure modes with this,
so I haven't implemented it yet.
David Lang
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