Wiremock originating OutOfMemoryError: Java heap space in Kubernetes Cluster

[Bikram Panda]

Hi ,

We have close to 48 Mocks / mappings ( very simple ones) which are running on a single node over a Kubernetes Cluster for Performance Test purpose. 

Wiremock flags are as below

java -jar wiremock-jre8-standalone-2.33.2.jar

When we are putting a load for 25 users for a period of 30 mins ( 350 TPS) after 15 mins the POD is crashing showing Out of Memory issue.

Resources configuration- Memory Limits:- 4GiB

Is there any way we can fix this.

Appreciate your help on this

[snegithan vikram]

@bikram Try adding this " --no-request-journal"  and " --disable-request-logging "  to ur command.

For example :-     java -jar wiremock-jre8-standalone-2.33.2.jar  --no-request-journal  --disable-request-logging

In addition, you can also try adding " --logged-response-body-size-limit" so that wiremock wont store response body exceeding the mentioned size. 

Refer :- https://wiremock.org/docs/running-standalone/ for commandline options

[Bikram Panda]

Yes doing this now with below 

java -Xms256m -Xmx6048m -jar wiremock-jre8-standalone-2.33.2.jar --no-request-journal --disable-request-logging

Will share the result shortly

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[Bikram Panda]

Thanks a lot for the pointer. Just to update with the below changes it worked like a charm

java -Xms256m -Xmx6048m -jar wiremock-jre8-standalone-2.33.2.jar --no-request-journal --disable-request-logging

[snegithan vikram]

Glad to hear that