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bcgov / ols-geocoder

Physical Address Geocoder
Apache License 2.0
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Deploy a second batch geocoder to support continuous availability #65

Closed mraross closed 1 year ago

mraross commented 4 years ago

By deploying a second batch geocoder on its own CPF, we get continuous availability.

cmhodgson commented 4 years ago

I believe this is more complex that you may think... I don't think it is possible to put a load balancer in front of the CPFs because we would need a way to ensure requests such as status updates and download requests are routed to the correct instance of CPF... perhaps with a smart enough load balancer this could be done, but it would have to inspect the returned packets for job ids and keep a database of which job id goes to which CPF instance... and then if the CPF that was running your job goes down you have to know to restart your job when you fail to get a status update. This would also require that the 2 CPFs had non-overlapping job ids. Really, isn't the CPF front end already basically a state-aware load balancer, with the backend cpf workers providing the continuous availability?

alixcote commented 1 year ago

Closing. Moving to OpenShift with failover will address this.