jesus at omniti
Mar 2, 2004, 2:44 PM
Post #2 of 2
On Tue, 2004-03-02 at 15:03, Kaveh Goudarzi wrote:
Wackamole - high availability / crash definition
[In reply to]
> So my real question is what metric(s) does wackamole
> use to determine if a server has crashed and can these metrics
> be configured on a per application basis?
wackamole doesn't use metrics. The machine is either up or down.
Wackamole uses Spread, which uses your IP network. If your IP network
goes down and "the other machines" become unavailable in that sense,
then Wackamole will do its work and take over the appropriate IP
addresses that it believes are no longer accessible.
If you want to tell wackamole that it should act differently, you can do
so with wackatrl (to tell it that is has failed) or incorporate the tiny
bits of communication that wackatrl performs into your own monitoring
// Theo Schlossnagle
// Principal Engineer -- http://www.omniti.com/~jesus/
// Postal Engine -- http://www.postalengine.com/
// Ecelerity: fastest MTA on earth