cherry-pick 2529b667 notReady nodes in scaledown #26
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…resource And remove local-data volumes from pods before scheduler evaluations: VolumeBinding predicate does not support no-provisioner storage classes. Signed-off-by: Julien Balestra <[email protected]>
With 1.5k MIGs attached to a cluster, cluster-autoscaler needs about 40mn to start. Refreshing MIGs+IT concurrently brings that down to about 5mn. Upstream PR kubernetes#3704 (under review).
On our k8s v1.10 (configured without TaintBasedEvictions feature gate), recent CA versions fails to consider dead nodes (unkown status) as unschedulable. Likely Reason is newer CA versions relies on the /unreachable taint (provided by TaintBasedEvictions) for the node to be considered unschedulable. Our best, middle term fix will be to enable TaintBasedEvictions feature gate on 1.10 clusters. This will require a sufficient testing period, so until then, this (hopefuly) temporary patch should cover the case.
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