run all PreFilter when the preemption will happen later in the same scheduling cycle

This commit is contained in:
Kensei Nakada
2023-08-06 01:39:18 +00:00
parent 3be9a8cc73
commit 5ab2317947
2 changed files with 83 additions and 18 deletions

View File

@@ -670,6 +670,7 @@ func (f *frameworkImpl) RunPreFilterPlugins(ctx context.Context, state *framewor
if verboseLogs {
logger = klog.LoggerWithName(logger, "PreFilter")
}
var returnStatus *framework.Status
for _, pl := range f.preFilterPlugins {
ctx := ctx
if verboseLogs {
@@ -684,7 +685,16 @@ func (f *frameworkImpl) RunPreFilterPlugins(ctx context.Context, state *framewor
if !s.IsSuccess() {
s.SetPlugin(pl.Name())
if s.IsRejected() {
return nil, s
if s.Code() == framework.UnschedulableAndUnresolvable {
// In this case, the preemption shouldn't happen in this scheduling cycle.
// So, no need to execute all PreFilter.
return nil, s
}
// In this case, the preemption should happen later in this scheduling cycle.
// So we need to execute all PreFilter.
// https://github.com/kubernetes/kubernetes/issues/119770
returnStatus = s
continue
}
return nil, framework.AsStatus(fmt.Errorf("running PreFilter plugin %q: %w", pl.Name(), s.AsError())).WithPlugin(pl.Name())
}
@@ -697,10 +707,14 @@ func (f *frameworkImpl) RunPreFilterPlugins(ctx context.Context, state *framewor
if len(pluginsWithNodes) == 1 {
msg = fmt.Sprintf("node(s) didn't satisfy plugin %v", pluginsWithNodes[0])
}
return nil, framework.NewStatus(framework.Unschedulable, msg)
// In this case, the preemption should happen later in this scheduling cycle.
// So we need to execute all PreFilter.
// https://github.com/kubernetes/kubernetes/issues/119770
returnStatus = framework.NewStatus(framework.Unschedulable, msg)
continue
}
}
return result, nil
return result, returnStatus
}
func (f *frameworkImpl) runPreFilterPlugin(ctx context.Context, pl framework.PreFilterPlugin, state *framework.CycleState, pod *v1.Pod) (*framework.PreFilterResult, *framework.Status) {