Hi,
We are at the moment considering upgrading our ES cluster from a 3.0.1 version to 3.0.3…
Is there a certain strategy to use when upgrading a cluster?
We would like to keep it running and do a node by node upgrade. But is that even possible? Or should the whole cluster be brought down? (and is there a difference when doing a minor/major version update)
What is the best strategy to follow?
Cheers,
– Marcel
Hi,
We are at the moment considering upgrading our ES cluster from a 3.0.1
version to 3.0.3...Is there a certain strategy to use when upgrading a cluster?
upgrade one node at a time then bring it back into cluster
We would like to keep it running and do a node by node upgrade. But is that
even possible? Or should the whole cluster be brought down? (and is there a
difference when doing a minor/major version update)
depends on what the changes that caused a major revision are. Normally
we try to keep everything compatible but breaking changes are breaking
changes