Istio sidecar running at 100% CPU

[chandrakanthkannam]

Is this the right place to submit this?

• [X] This is not a security vulnerability or a crashing bug
• [X] This is not a question about how to use Istio

Bug Description

We are running EKS cluster with istio service mesh and sidecar injection enabled. Few of the replicas for a pod deployment in the cluster having an issue, where istio-proxy has envoy process sitting at 100% and these pods don't have any traffic coming in and the process still sits 100%.

Version

Istio helm chart version: 1.14.3 

EKS version: v1.22.17-eks-0a21954

Additional Information

No response

[chandrakanthkannam]

Tried to reach out on slack as well: https://istio.slack.com/archives/C37A4KAAD/p1695912023854109

[zirain]

if there's no taffic, the most likely reason is stats. can you check the ouput of command: istioctl x es <pod_name> -n <namespace> | grep istio|wc -l

[kyessenov]

What features are you using?

[chandrakanthkannam]

Sorry guys for the late reply.

What features are you using?

• @kyessenov can you be more specific? I'm not sure i get this question.

if there's no taffic, the most likely reason is stats.

• @zirain Oh? stats?

can you check the ouput of command:istioctl x es <pod_name> -n <namespace> | grep istio|wc -l

• @zirain it says 77, but I'm not able to reproduce the behavior at the moment

[istio-policy-bot]

🚧 This issue or pull request has been closed due to not having had activity from an Istio team member since 2023-09-29. If you feel this issue or pull request deserves attention, please reopen the issue. Please see this wiki page for more information. Thank you for your contributions.

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