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f236ab24df
The --contention-profiling flag enables block profiling by calling SetBlockProfileRate(). It, however does not call SetMutexProfileFraction which enables mutex profiling. Mutex profiling gives us information about lock contention whereas block profiling on the other hand gives us information on gorotuines being blocked on sync primitives. Updating the docs to "block profiling" in order to make it more accurate. Eventhough a block profile may reflect contention points on locks to some extent, it also talks about other sources where goroutines may be blocked. Signed-off-by: Madhav Jivrajani <madhav.jiv@gmail.com>
56 lines
3.6 KiB
Go
56 lines
3.6 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package options
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import (
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"time"
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"github.com/spf13/pflag"
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componentbaseconfig "k8s.io/component-base/config"
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)
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// DeprecatedOptions contains deprecated options and their flags.
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// TODO remove these fields once the deprecated flags are removed.
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type DeprecatedOptions struct {
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componentbaseconfig.DebuggingConfiguration
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componentbaseconfig.ClientConnectionConfiguration
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// Note that only the deprecated options (lock-object-name and lock-object-namespace) are populated here.
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componentbaseconfig.LeaderElectionConfiguration
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// PodMaxInUnschedulablePodsDuration is the maximum time a pod can stay in
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// unschedulablePods. If a pod stays in unschedulablePods for longer than this
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// value, the pod will be moved from unschedulablePods to backoffQ or activeQ.
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// If this value is empty, the default value (5min) will be used.
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PodMaxInUnschedulablePodsDuration time.Duration
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}
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// AddFlags adds flags for the deprecated options.
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func (o *DeprecatedOptions) AddFlags(fs *pflag.FlagSet) {
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if o == nil {
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return
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}
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fs.BoolVar(&o.EnableProfiling, "profiling", true, "DEPRECATED: enable profiling via web interface host:port/debug/pprof/. This parameter is ignored if a config file is specified in --config.")
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fs.BoolVar(&o.EnableContentionProfiling, "contention-profiling", true, "DEPRECATED: enable block profiling, if profiling is enabled. This parameter is ignored if a config file is specified in --config.")
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fs.StringVar(&o.Kubeconfig, "kubeconfig", "", "DEPRECATED: path to kubeconfig file with authorization and master location information. This parameter is ignored if a config file is specified in --config.")
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fs.StringVar(&o.ContentType, "kube-api-content-type", "application/vnd.kubernetes.protobuf", "DEPRECATED: content type of requests sent to apiserver. This parameter is ignored if a config file is specified in --config.")
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fs.Float32Var(&o.QPS, "kube-api-qps", 50.0, "DEPRECATED: QPS to use while talking with kubernetes apiserver. This parameter is ignored if a config file is specified in --config.")
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fs.Int32Var(&o.Burst, "kube-api-burst", 100, "DEPRECATED: burst to use while talking with kubernetes apiserver. This parameter is ignored if a config file is specified in --config.")
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fs.StringVar(&o.ResourceNamespace, "lock-object-namespace", "kube-system", "DEPRECATED: define the namespace of the lock object. Will be removed in favor of leader-elect-resource-namespace. This parameter is ignored if a config file is specified in --config.")
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fs.StringVar(&o.ResourceName, "lock-object-name", "kube-scheduler", "DEPRECATED: define the name of the lock object. Will be removed in favor of leader-elect-resource-name. This parameter is ignored if a config file is specified in --config.")
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fs.DurationVar(&o.PodMaxInUnschedulablePodsDuration, "pod-max-in-unschedulable-pods-duration", 5*time.Minute, "DEPRECATED: the maximum time a pod can stay in unschedulablePods. If a pod stays in unschedulablePods for longer than this value, the pod will be moved from unschedulablePods to backoffQ or activeQ. This flag is deprecated and will be removed in 1.26")
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}
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