We are currently running a diverse ES install, with 10+ servers
running in four different data centres. As such, I would like to
change the default sharding method to increase the number of replicas,
as I'd prefer that when a remote DC goes offline for any reason, I
don't end up with all the replicas for one shard at the end of that
now dead link.
Ideally, I'd like there to be one copy of each shard in each DC, so
four shards total, and weighted by server location.
I looked at the ES website but honestly, it's pretty thin on details
when it comes to configuring the server. Any tips would be