need help remote server error

[sun di]

I use jmeter to remotely control 3 windows servers, and 3 linux servers, the script contains dummy sampler, the windows server runs fine, the linux server returns the error:

java.io.InvalidClassException: kg.apc.jmeter.samplers.DummySampler, local class incompatible，

how to solve it？

[Sujeet Velapure]

Try copying  jmeter-plugins-dummy-0.3.jar on linux machines under jmeter/ lib/ext/  dir .

In case above doesnt help,  then might be the case dummy sampler is not supported in distributed jmeter tests. You can verify running in standalone mode on one of the jmeter machine vs multiple machines in distributed. 

[DT]

It looks like a version mismatch, i.e. master has version 0.4 and slave has 0.3 or something like this.

So make sure to update the Dummy Sampler (and other plugins) using JMeter Plugins Manager and the issue will go away.

Also ensure that you have the same Java, JMeter and other dependencies versions on all the machines.