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Fix a bug in initializing scheduler #2565

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merged 1 commit into from
Nov 26, 2019

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MaciekPytel
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By default scheduler now returns plugins instead of predicates.
However, plugins are not yet supported by CA, so we need to make
scheduler return predicates.

@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/XS Denotes a PR that changes 0-9 lines, ignoring generated files. labels Nov 26, 2019
@losipiuk
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/lgtm /approve

@MaciekPytel
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/hold
To give @ahg-g a chance to look at this.

@k8s-ci-robot k8s-ci-robot added the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Nov 26, 2019
@MaciekPytel
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I tested this using pods with hostport conflict - without this CA won't scale for them, because it lacks relevant predicate and thinks those are schedulable. With this change the scale-up happens as expected.

@@ -125,6 +125,7 @@ func NewPredicateChecker(kubeClient kube_client.Interface, stop <-chan struct{})
NoOpEventRecorder{},
stop,
scheduler.WithAlgorithmSource(algorithmSource),
scheduler.WithFrameworkConfigProducerRegistry(nil),
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you can remove line 127 above, by default the scheduler uses "schedulerconfig.SchedulerDefaultProviderName"

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That's a fair point. I was wondering if we're better off not relying on default, but assuming that by default we'll get a DefaultProvider seems reasonable.

By default scheduler now returns plugins instead of predicates.
However, plugins are not yet supported by CA, so we need to make
scheduler return predicates.
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ahg-g commented Nov 26, 2019

/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Nov 26, 2019
@MaciekPytel
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/hold cancel

@k8s-ci-robot k8s-ci-robot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Nov 26, 2019
@MaciekPytel
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/approve
It was already approved by @losipiuk, but apparently the bot needs the commands in separate lines. Also I'm curious if self approval will work :)

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: MaciekPytel

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Nov 26, 2019
@k8s-ci-robot k8s-ci-robot merged commit 6ab78a8 into kubernetes:master Nov 26, 2019
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4 participants