Multiple primaries in a rethinkdb cluster

Question

I've got two sets of servers hosted on different continents belonging to a rethinkdb cluster. The primary belongs to one set, so any query generated from the other set takes a lot of time to execute under the default read and write consistency modes.

I was wondering if there is anyway I could make separate clusters for each of the sites and cross-replicate between the clusters? (I took a look at Rethink DB Cross Cluster Replication, but there doesn't seem to be such a solution.)

If not, is there a way I could setup two primaries in a cluster, one for each of the sites without breaking consistency guarantees?

score 2 · Answer 1 · answered Apr 04 '16 at 11:15

2

You can have two primaries in a cluster either by having two tables, one for each set of servers, or by sharding a single table. You can control which server set the primary ends up in by using server tags (https://www.rethinkdb.com/docs/sharding-and-replication/).

answered Apr 04 '16 at 11:15

mlucy

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Is there anyway I can have the primaries for different shards coming from different server-sets? – Kapil Earanky Apr 05 '16 at 09:39
You can write `table.config().update({shards: [{primary_replica: 'foo', replicas: ['foo', 'bar']}, {primary_replica: 'bar', replicas: ['foo', 'bar']}]})`. – mlucy Apr 05 '16 at 23:37
I'm getting an error : e: Expected type NUMBER but found ARRAY – Kapil Earanky Apr 06 '16 at 08:29

Multiple primaries in a rethinkdb cluster

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