Reduce the number of API calls to K8S #197
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javacruft
requested review from
sed-i,
Abuelodelanada,
lucabello,
PietroPasotti,
dstathis and
simskij
as code owners
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new in py39 - drat! Let me take another run at this. |
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@javacruft seems like performance has been decreasing lately, we can consider merging this work, what's the status? |
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The charm makes a large number of API calls to retrieve information about the IP address allocated to the K8S service; cache this information to reduce the number of calls made and speed up hook performance. Note functools.lru_cache is used as this charm runs on 20.04 which uses Python 3.8 - when the base is updated to 22.04 the more simple cache decorator can be used instead.
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@PietroPasotti refreshed for 3.8 compatibility - I'm taking it for a test drive now |
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itests failing due to some ingress gateway unavailable |
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@PietroPasotti any idea what the cause of the gateway unavailable error is? I had a dig around in the logs but can't see anything obvious |
no idea either: https://discourse.charmhub.io/t/traefik-k8s-docs-troubleshooting-gateway-address-unavailable/10813 |
't was flaky |
The charm makes a large number of API calls to retrieve information about the IP address allocated to the K8S service; cache this information to reduce the number of calls made and speed up hook performance.
Issue
Improve the performance of hook executions
Solution
Cache response from K8S to reduce the amount of API calls made.
Context
The traefik charm stands out as always the last to settle in Sunbeam deployments; hopefully this may improve this situation a bit.
Testing Instructions
https://microstack.run/docs -> "multi-node tutorial"