Distributed Jmeter max number of servers

0
votes

I use distributed jmeter for load tests in Kubernetes. To maximize the number of concurrent threads I use several Jmeter server instances.

My test plan has 2000 users, so I have 10000 concurrent users with 5 Jmeter servers. Each user send 1 request per second to Kafka. This runs without any problems.

But if I increase the number of server instances up to 10, Jmeter gets a lot of errors when sending requests and is not able to send the required rate of requests per second.

Is there a way to use more than 5 server instances in Jmeter (my cluster has 24vCPUs and 192gb ram)?

1
kubernetesjmeterload-testingdistributed-testing

1 Answers

0
votes

Theoretical maximum value of slaves is very high, you can have as many as 2 147 483 647 slaves which is a little bit more than 5.

So my expectation is that the problem is somewhere else, i.e. there is a maximum number of connections per IP defined or the broker is running out of resources

We cannot give meaningful advices unless we have more details, in the meantime you can check: