Should HDF 2.0 ZK nodes be isolated or colocated with NiFi nodes?

sunile_manjee — Tue, 21 Apr 2026 12:27:20 GMT

Planning on installing new HDF 2.0 cluster. Should HDF 2.0 ZK nodes be isolated or colocated with NiFi nodes? I want to colocate. I know NiFi disk need to be dedicated to NiFi. If i can have zk disk isolate from NiFi, I assume CPU might take a hit. Wondering how much and if this is a common practice.

Re: Should HDF 2.0 ZK nodes be isolated or colocated with NiFi nodes?

MattWho — Wed, 09 Nov 2016 02:17:45 GMT

@Sunile Manjee

As far as best practices goes, we do not recommend installing ZK on the same servers/nodes as NiFi. NiFi dataflows can be very CPU, disk, and/or memory intensive. Any of these can interfere with ZK --> NiFi comms/performance. This can result in NiFi nodes dropping from cluster, new NiFi cluster coordinators being assigned, and/or new primary nodes being elected frequently.

While it does work, i would keep away from co-location in production for sure.

Thank,

Matt

question Should HDF 2.0 ZK nodes be isolated or colocated with NiFi nodes? in Archives of Support Questions (Read Only)

Should HDF 2.0 ZK nodes be isolated or colocated with NiFi nodes?

Re: Should HDF 2.0 ZK nodes be isolated or colocated with NiFi nodes?