istio-discovery container is taking up large amounts of memory or leaking memory

[alyssa-tc]

I installed this on our cluster EKS K8S 1.11, and I noticed the istio-discover container using up large amounts of memory - approximately 20GB. Please look into this. It may be a memory leak

[dorkolog]

hi @alyssa-tc

I just run a cluster with >1000 ServiceEntires created sequentially (simple loop running curl)
dns-discovery was hitting 22mb-26mb res mem, so I wasn't able to reproduce this leak.

Can you please elaborate more about your environment, use-case, # serviceentries created - and anything else that might help me to spot this issue ?

[alyssa-tc]

We have 202 service entries. Use case is to do what dns-discovery is meant for- finding DNS names for all outbound traffic. We had it enabled for a few days before . See datadog screenshot. We have limits set in k8s so the container gets killed when memory usage goes too high.