CODEWITHSUNDEEP
cassandrareplicationdatabase-performanceconsistency
Murtuza Talwari
Murtuza Talwari

Reputation: 21

Performance impact of using NetworkTopology with 3 node cassandra cluster in One Datacenter

We are using 3 node Cassandra cluster in one data center.

For our keyspaces as suggested in best practices we are using NetworkTopology for replication strategy using the GossipingPropertyFileSnitch.

For Read/Write consistency we are using as QUORUM.

In majority of cases when users use NetworkTopology as replication strategy they might have multiple DataCenters configured.

In our case we have only one DataCenter,

A) With that using the NetworkTopology as replication strategy will it cause any performance impact ?

B) As we are using QUORUM as Read/Write consistency which is considering multiple DataCenters, does QUORUM consistency have any performance impact ? is it OK to continue using QUORUM consistency considering future expansions of data centers ?

Please suggest.

Upvotes: 1

Views: 182

Answers (1)

Alex Ott
Alex Ott

Reputation: 87244

There should be no real performance difference between NetworkTopologyStrategy & SimpleStrategy. But it will be simpler to expand to another DC if you already use NetworkTopologyStrategy.

Regarding the QUORUM - you really need to decide if you want it. In multi-DC setup the QUORUM will be calculated from all nodes in the cluster. If you don't need it, then you can use LOCAL_QUORUM that will take into account machines in "local" DC

Upvotes: 0

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