where set the replication factor of segments in historical servers ?


I noticed each segment (or segment partition) is hosted on 2 historical nodes.

Please advise how to set this to 1.



You can change the replication factor of the datasource from the coordinator UI,which runs by default on the 8090 port of the coordinator host.
You need to edit the load rule and change replication factor.

My bad:
coordinator UI runs by default on 8081.


Thanks, can you tell me in more detail how to set replication to 1?

I add a rule, of Load type or Drop type?

Pls advise,


Hi Nicu,
you can add a load rule with replication set to 1.

More details about rules can be found here -