[hobbit] big brother replacement
josh at imaginenetworksllc.com
Fri Nov 2 00:12:21 CET 2007
I see what you're saying, but you still have to manually specify which
server you're connecting to. If the bb1.domain.tld can not be reached the
techs have to manually enter bb2.domain.tld - correct?
I know of several BB ext scripts that work perfectly with Hobbit and even
more then just needed a small weak. Would you be able to post the entire
ext script? Hopefully Henrik is willing to answer your $64 question =)
On 11/1/07, Sloan <joe at tmsusa.com> wrote:
> Tod Hansmann wrote:
> > Let me see if I understand. You have several bb servers at one
> > datacenter, each with their twin at the other datacenter, and both sets
> > do the tests. They report to one central display server, but only one
> > set reports at a time, depending on failover state, correct?
> You have the basic idea, but there is no single central server, just
> pairs of bb servers, one to a data center, in each lan which is being
> monitored. For each pair of bb servers, only the server at data center A
> does reporting, unless the server in data center B cannot reach the
> server in data center A, in which case the server in data center B will
> take over the reporting duties until the bb server in data center A
> becomes reachable again. While this could theoretically lead to a split
> brain condition, the failover condition has only ever triggered when
> there was a wan outage.
> > Is this failover automatic? If so, how is this failover determined?
> > What if this failover has a false positive? If not, what is your
> > timeframe to swap over?
> IIRC It takes one bb cycle to kick in.
> We've not seen a false positive, as I mentioned above.
> It's just the standard built-in bb failover -
> head ~bb/ext/failover follows:
> # failover
> # BIG BROTHER - FAILOVER SCRIPT
> # Sean MacGuire
> # (c) Copyright Quest Software, Inc. 1997-2003 All rights reserved.
> # failover WATCHES BBNET and BBPAGER
> # IF BBNET OR BBPAGER BECOMES UNAVAILABLE, THEN TAKE OVER UNTIL THEY
> # To use, just add failover to the BBEXT variable in etc/bbdef.sh
> # To configure BBPAGER failover:
> # define both the primary and failover machines as BBPAGERS in
> # and set bbwarn: FAILOVER in etc/bbwarnsetup.cfg
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