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kube2iam resources improvement #1735
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After 2y running this we faced some issues with the default kube2iam resources values.
CPU limits cause applications to run up to 100% slower, in this case can end in race conditions touching while the ip tables and also in timeouts.
Default CPU requests and memory are not enough for +50 nodes.
You can run the next query in prometheus to see if your kube2iam instances are throttling:
```
100
* sum by(container, pod, namespace) (increase(container_cpu_cfs_throttled_periods_total{container!=""}[5m]))
/ sum by(container, pod, namespace) (increase(container_cpu_cfs_periods_total[5m]))
> 25
```
k8s-ci-robot
added
cncf-cla: yes
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[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: The full list of commands accepted by this bot can be found here.
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/assign @davidmccormick |
davidmccormick
approved these changes
Sep 25, 2019
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/lgtm |
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/approved |
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After 2y running this we faced some issues with the default kube2iam resources values.
CPU limits cause applications to run up to 100% slower, in this case can end in race conditions while touching the ip tables and also in timeouts.
Default CPU requests and memory are not enough for +50 nodes.
You can run the next query in prometheus to see if your kube2iam instances are throttling: