This moves the priority types from the algorithm package
to priorities package.
Idea is to move the type to the packages where it is
implemented. This will ease the future refactor process.
This moves the type `ScheduleAlgorithm` from `pkg/scheduler/algorithm`
to `pkg/scheduler/core`. The reason for this move is to fix our import
dependency graph and allow predicate & priority types to be moved into
their appropriate packages.
The new location makes sense because `core` is the only package that
exports an implementation of this type.
With the alpha scheduling queue we move pods from unschedulable to
active on certain events without a backoff. As a result we can cause
starvation issues if high priority pods are in the unschedulable queue.
Implement a backoff mechanism for pods being moved to active.
Closes#56721
- don't update nominatedMap cache when Pop() an element from activeQ
- instead, delete the nominated info from cache when it's "assumed"
- unit test behavior adjusted
- expose SchedulingQueue in factory.Config
- Move from the old github.com/golang/glog to k8s.io/klog
- klog as explicit InitFlags() so we add them as necessary
- we update the other repositories that we vendor that made a similar
change from glog to klog
* github.com/kubernetes/repo-infra
* k8s.io/gengo/
* k8s.io/kube-openapi/
* github.com/google/cadvisor
- Entirely remove all references to glog
- Fix some tests by explicit InitFlags in their init() methods
Change-Id: I92db545ff36fcec83afe98f550c9e630098b3135
Loop over priorityConfigs seperately. The node loop can only safely
modify result[i][index]. Before this change it sometimes modified
result[i] concurrently with other loops.
Fixes: 7164967662
==================== Test output for //pkg/scheduler/core:go_default_test:
==================
WARNING: DATA RACE
Read at 0x00c0005e8ed0 by goroutine 22:
k8s.io/kubernetes/pkg/scheduler/core.PrioritizeNodes.func2()
pkg/scheduler/core/generic_scheduler.go:667 +0x2ea
k8s.io/kubernetes/vendor/k8s.io/client-go/util/workqueue.ParallelizeUntil.func1()
staging/src/k8s.io/client-go/util/workqueue/parallelizer.go:65 +0x9e
Previous write at 0x00c0005e8ed0 by goroutine 21:
k8s.io/kubernetes/pkg/scheduler/core.PrioritizeNodes.func2()
pkg/scheduler/core/generic_scheduler.go:668 +0x450
k8s.io/kubernetes/vendor/k8s.io/client-go/util/workqueue.ParallelizeUntil.func1()
staging/src/k8s.io/client-go/util/workqueue/parallelizer.go:65 +0x9e
Goroutine 22 (running) created at:
k8s.io/kubernetes/vendor/k8s.io/client-go/util/workqueue.ParallelizeUntil()
staging/src/k8s.io/client-go/util/workqueue/parallelizer.go:57 +0x1a3
k8s.io/kubernetes/pkg/scheduler/core.PrioritizeNodes()
pkg/scheduler/core/generic_scheduler.go:682 +0x592
k8s.io/kubernetes/pkg/scheduler/core.(*genericScheduler).Schedule()
pkg/scheduler/core/generic_scheduler.go:186 +0x77d
k8s.io/kubernetes/pkg/scheduler/core.TestGenericScheduler.func1()
pkg/scheduler/core/generic_scheduler_test.go:464 +0x91f
testing.tRunner()
GOROOT/src/testing/testing.go:827 +0x162
Goroutine 21 (running) created at:
k8s.io/kubernetes/vendor/k8s.io/client-go/util/workqueue.ParallelizeUntil()
staging/src/k8s.io/client-go/util/workqueue/parallelizer.go:57 +0x1a3
k8s.io/kubernetes/pkg/scheduler/core.PrioritizeNodes()
pkg/scheduler/core/generic_scheduler.go:682 +0x592
k8s.io/kubernetes/pkg/scheduler/core.(*genericScheduler).Schedule()
pkg/scheduler/core/generic_scheduler.go:186 +0x77d
k8s.io/kubernetes/pkg/scheduler/core.TestGenericScheduler.func1()
pkg/scheduler/core/generic_scheduler_test.go:464 +0x91f
testing.tRunner()
GOROOT/src/testing/testing.go:827 +0x162
==================
--- FAIL: TestGenericScheduler (0.01s)
--- FAIL: TestGenericScheduler/test_6 (0.00s)
testing.go:771: race detected during execution of test
testing.go:771: race detected during execution of test
FAIL
Andrew Kim