CODEWITHSUNDEEP
linuxamazon-ec2cassandrastress-testing
Ma Diga
Ma Diga

Reputation: 416

How to measure IOPS for a Cassandra stress test?

I've been running some basic stress test against a 3 node Cassandra cluster with replication 1 and 3. The system is Linux and on SAN. Am also doing a comparison on EC2 with SSD storage. The duration of 1M records on writes/reads is much faster on local SAN network versus SSD on EC2.

However, I'm still not sure exactly how to best measure overall IOPS performance between the two systems while a stress test is running. Other than iowait, are there any other tools I can use?

The systems have large amount of memory so I would expect the IOPS to be low as the system disks would not be used due to all activity being in memory, am I wrong?

Thanks!

Upvotes: 0

Views: 1151

Answers (1)

Sergio Ayestarán
Sergio Ayestarán

Reputation: 5910

Yes, install Datastax OpsCenter on the cluster and while running the stress test go to the OpsCenter dashboard and you can look the IOPS graph in realtime.

Hope it helps!

Upvotes: 1

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