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Fixing a kubelet memory leak in Kubernetes 1.36

https://heyoncall.com/blog/fixing-kubernetes-kubelet-memory-leak
32•compumike•15h ago

Comments

compumike•15h ago
Author here! If you're running a Kubernetes cluster, I recommend you check `kubectl version` and see if you're running "Server Version: v1.36.[0,1,2]". If so, you may want to use the one-liner at the end of the article to check your "process_resident_memory_bytes" on each node, and consider restarting kubelet as a temporary workaround to tame the memory leak until v1.36.3 is released.
rirze•1h ago
Very cool. It's often daunting to contribute to such a well-established and recognizable project, but this is exactly how it should work.
CamouflagedKiwi•51m ago
Nice find.

Can't help but feel this is one of the subtle traps hidden beneath the advice that contexts aren't supposed to be stored. I know it's not always that easy, of course.

compumike•22m ago
Thanks. I know there's a `go vet` tool that's run as part of Kubernetes CI, and one of its checks is:

  lostcancel: check cancel func returned by context.WithCancel is called
I'm not 100% sure why `go vet` didn't catch this issue, but storing the cancelFn in the struct is probably part of the reason. Any Go experts know if that's the case?
fsuts•28m ago
Not all heroes wear capes! Well done
__turbobrew__•12m ago
A good reason to health check the kubelet process and restart it when the checks fail.

For first time, a cell built from scratch grows and divides

https://www.quantamagazine.org/for-the-first-time-a-cell-built-from-scratch-grows-and-divides-202...
382•defrost•3h ago•123 comments

Physical disc production ending in Jan 2028 for new games on PlayStation

https://blog.playstation.com/2026/07/01/physical-disc-production-ending-in-january-2028-for-new-g...
295•Tiberium•5h ago•368 comments

FFmpeg 9.1's new AAC encoder

https://hydrogenaudio.org/index.php/topic,129691.0.html
59•ledoge•3h ago•29 comments

How We Made IPFS Content Publishing 10x Faster

https://probelab.io/blog/optimistic-provide/
66•dennis-tra•2h ago•11 comments

Box3D, an open source 3D physics engine

https://box2d.org/posts/2026/06/announcing-box3d/
248•makepanic•5h ago•47 comments

Ask HN: Who is hiring? (July 2026)

68•whoishiring•3h ago•82 comments

Monetization Gateway

https://blog.cloudflare.com/monetization-gateway/
126•soheilpro•4h ago•61 comments

Internal Combustion Engine

https://ciechanow.ski/internal-combustion-engine/
129•StefanBatory•4h ago•17 comments

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47•whoishiring•3h ago•109 comments

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32•gergelycsegzi•4h ago•29 comments

Fixing a kubelet memory leak in Kubernetes 1.36

https://heyoncall.com/blog/fixing-kubernetes-kubelet-memory-leak
33•compumike•15h ago•6 comments

Solid and Clean Code never felt solid or clean to me

https://devz.cl/posts/solid-never-felt-solid/
22•DanielVZ•2h ago•20 comments

Sony Deletes 551 Movies PlayStation Owners Paid For

https://reclaimthenet.org/sony-deletes-551-studiocanal-movies-playstation-owners-paid-for
247•bilsbie•3h ago•124 comments

Reduce GVisor Cold Starts with GPU Snapshotting

https://cerebrium.ai/blog/reducing-gpu-cold-starts-with-memory-snapshots-restoring-cuda-workloads...
28•jono_irwin•1h ago•7 comments

Manufact (YC S25) Is Hiring a Developer Advocate in SF

https://www.ycombinator.com/companies/manufact/jobs/4cyWd6S-developer-advocate-partnerships-devrel
1•luigipederzani•4h ago

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https://exitprotocols.com/engineering/libr-state-machine/
3•cd_mkdir•8m ago•0 comments

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10•iemejia•1h ago•1 comments

What to Learn to Be a Graphics Programmer

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3•atan2•9m ago•0 comments

Asahi Linux 7.1 Progress Report

https://asahilinux.org/2026/06/progress-report-7-1/
454•pantalaimon•7h ago•156 comments

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https://hackerask.com/posts/pentesting-cheatsheet/
8•HackerAsk•13m ago•0 comments

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67•surprisetalk•6d ago•10 comments

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https://arxiv.org/abs/2606.22748
6•ilamont•42m ago•3 comments

Red Programming Language: Static linking support

https://www.red-lang.org/2026/06/static-linking-support.html
54•em-bee•1d ago•8 comments

Nintendo has raised its employees base salary by 10%

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404•_tk_•6h ago•216 comments

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10•bhaktatejas922•21h ago•1 comments

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212•chimpanzee•2d ago•47 comments

Ray Tracer in SQL

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32•kbumsik•3h ago•8 comments

Apple 'Hide My Email' vulnerability reveals peoples' real email addresses

https://easyoptouts.com/guides/apple-hide-my-email-is-leaking-email-addresses
108•sashk•7h ago•11 comments

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https://golemui.com
21•wtfdeveloper•2h ago•38 comments

Chasing the OPNsense RCE: The Story Behind My First CVEs

https://hackerask.com/posts/opnsense/
8•HackerAsk•31m ago•0 comments