Currently using 4.2.8 community edition. Have a sharded cluster with 20+ shard nodes.
If I turn off the balancer, will inserted documents still be distributed to the correct shard nodes – assuming a good shard key has been utilized? I believe i have chosen a good hashed key, and the data seems to get distributed well already, however, I’m experiencing some slow-downs in insert speed during peak traffic.
I would like to only allow the balancer to run during scheduled times in the day to maximize my cluster’s performance but I don’t know if that means that all the inserts will just go to the primary shard and max out the disk. Can someone clarify?