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Created April 15, 2021 13:43
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Kubernetes PID exhaustion (fork rejected by pids controller in /kubepods...)
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README.md

Kernel errors like:

kubernetes cgroup: fork rejected by pids controller in /kubepods/burstable/... accompainied by errors creating threads or starting processes on base OS can be caused by the kubepods cgroup pids.max being to low

cat /sys/fs/cgroup/pids/kubepods/pids.max

If this is low, it can be reset by setting kernel.pid_max to a large number (kernel.pid_max=4194304) then restart kubelet. After a bit, kubepods/pids.max should be bumped up to the same number (can take a few minutes)

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