Kubernetes : An existing connection was forcibly closed by the remote host

Question

My Website is developed using Python Flask and deployed to Kubernetes and it is running with

gunicorn -k gevent --workers=8 --threads=5 apps.webapp:app

I am doing load test my project app with 100 users and Hatching rate 10 on locust, but everytime locust is throwing error after some requests with message

:

I am struggling to find out the root cause of this issue. Is it Locust framework can't work on kubernetes website app? Please help to understand this issue.

Did you verify if your app is working and accessible via service ? f.e. from inside/outside the cluster. — Nick, Jul 24 '20 at 08:04

score 1 · Accepted Answer · answered Jul 28 '20 at 06:59

1

I have extended ulimit to 3000, hence issue resolved.

answered Jul 28 '20 at 06:59

Sanjay Chintha

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score 0 · Answer 2 · answered Jul 21 '20 at 13:27

Your web server seems to be resetting & closing the connection. This is most likely not related to locust itself (and would be a problem even with real users hitting your site)

Perhaps gunicorn can only handle 40 (8x5) simultaneous requests with those settings? What is your throughput?

Kubernetes : An existing connection was forcibly closed by the remote host

2 Answers2