While starting now with SolrCloud I tried to understand the sense of external zookeeper.
Let's assume I want to split 1 huge collection accross 4 server. My straight forward idea is to setup a cloud with 4 shards (one on each server) and also have a replication of the shard on another server. server_1: shard_1, shard_replication_4 server_2: shard_2, shard_replication_1 server_3: shard_3, shard_replication_2 server_4: shard_4, shard_replication_3 In this configuration I always have all 4 shards available if one server fails. But now to zookeeper. I would start the internal zookeeper for all shards including replicas. Does this make sense? Or I only start the internal zookeeper for shard 1 to 4 but not the replicas. Should be good enough, one server can fail, or not? Or I follow the recommendations and install on all 4 server an external seperate zookeeper, but what is the advantage against having the internal zookeeper on each server? I really don't get it at this point. Can anyone help me here? Regards Bernd
