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persist_options.go
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persist_options.go
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package config
import (
"fmt"
"reflect"
"strconv"
"strings"
"sync/atomic"
"time"
"unsafe"
"github.com/coreos/go-semver/semver"
"github.com/deepfabric/prophet/core"
"github.com/deepfabric/prophet/limit"
"github.com/deepfabric/prophet/pb/metapb"
"github.com/deepfabric/prophet/storage"
"github.com/deepfabric/prophet/util"
"github.com/deepfabric/prophet/util/cache"
"github.com/deepfabric/prophet/util/slice"
"github.com/deepfabric/prophet/util/typeutil"
)
// PersistOptions wraps all configurations that need to persist to storage and
// allows to access them safely.
type PersistOptions struct {
ttl *cache.TTLString
schedule atomic.Value
replication atomic.Value
labelProperty atomic.Value
clusterVersion unsafe.Pointer
}
// NewPersistOptions creates a new PersistOptions instance.
func NewPersistOptions(cfg *Config) *PersistOptions {
o := &PersistOptions{}
o.schedule.Store(&cfg.Schedule)
o.replication.Store(&cfg.Replication)
o.labelProperty.Store(cfg.LabelProperty)
o.ttl = nil
return o
}
// GetScheduleConfig returns scheduling configurations.
func (o *PersistOptions) GetScheduleConfig() *ScheduleConfig {
return o.schedule.Load().(*ScheduleConfig)
}
// SetScheduleConfig sets the PD scheduling configuration.
func (o *PersistOptions) SetScheduleConfig(cfg *ScheduleConfig) {
o.schedule.Store(cfg)
}
// GetReplicationConfig returns replication configurations.
func (o *PersistOptions) GetReplicationConfig() *ReplicationConfig {
return o.replication.Load().(*ReplicationConfig)
}
// SetReplicationConfig sets the PD replication configuration.
func (o *PersistOptions) SetReplicationConfig(cfg *ReplicationConfig) {
o.replication.Store(cfg)
}
// GetLabelPropertyConfig returns the label property.
func (o *PersistOptions) GetLabelPropertyConfig() LabelPropertyConfig {
return o.labelProperty.Load().(LabelPropertyConfig)
}
// SetLabelPropertyConfig sets the label property configuration.
func (o *PersistOptions) SetLabelPropertyConfig(cfg LabelPropertyConfig) {
o.labelProperty.Store(cfg)
}
// GetClusterVersion returns the cluster version.
func (o *PersistOptions) GetClusterVersion() *semver.Version {
return (*semver.Version)(atomic.LoadPointer(&o.clusterVersion))
}
// SetClusterVersion sets the cluster version.
func (o *PersistOptions) SetClusterVersion(v *semver.Version) {
atomic.StorePointer(&o.clusterVersion, unsafe.Pointer(v))
}
// CASClusterVersion sets the cluster version.
func (o *PersistOptions) CASClusterVersion(old, new *semver.Version) bool {
return atomic.CompareAndSwapPointer(&o.clusterVersion, unsafe.Pointer(old), unsafe.Pointer(new))
}
// GetLocationLabels returns the location labels for each resource.
func (o *PersistOptions) GetLocationLabels() []string {
return o.GetReplicationConfig().LocationLabels
}
// GetIsolationLevel returns the isolation label for each resource.
func (o *PersistOptions) GetIsolationLevel() string {
return o.GetReplicationConfig().IsolationLevel
}
// IsPlacementRulesEnabled returns if the placement rules is enabled.
func (o *PersistOptions) IsPlacementRulesEnabled() bool {
return o.GetReplicationConfig().EnablePlacementRules
}
// SetPlacementRuleEnabled set PlacementRuleEnabled
func (o *PersistOptions) SetPlacementRuleEnabled(enabled bool) {
v := o.GetReplicationConfig().Clone()
v.EnablePlacementRules = enabled
o.SetReplicationConfig(v)
}
// GetStrictlyMatchLabel returns whether check label strict.
func (o *PersistOptions) GetStrictlyMatchLabel() bool {
return o.GetReplicationConfig().StrictlyMatchLabel
}
// GetMaxReplicas returns the number of replicas for each resource.
func (o *PersistOptions) GetMaxReplicas() int {
return int(o.GetReplicationConfig().MaxReplicas)
}
// SetMaxReplicas sets the number of replicas for each resource.
func (o *PersistOptions) SetMaxReplicas(replicas int) {
v := o.GetReplicationConfig().Clone()
v.MaxReplicas = uint64(replicas)
o.SetReplicationConfig(v)
}
const (
maxSnapshotCountKey = "schedule.max-snapshot-count"
maxMergeResourceSizeKey = "schedule.max-merge-resource-size"
maxPendingPeerCountKey = "schedule.max-pending-peer-count"
maxMergeResourceKeysKey = "schedule.max-merge-resource-keys"
leaderScheduleLimitKey = "schedule.leader-schedule-limit"
resourceScheduleLimitKey = "schedule.resource-schedule-limit"
replicaRescheduleLimitKey = "schedule.replica-schedule-limit"
mergeScheduleLimitKey = "schedule.merge-schedule-limit"
hotResourceScheduleLimitKey = "schedule.hot-resource-schedule-limit"
schedulerMaxWaitingOperatorKey = "schedule.scheduler-max-waiting-operator"
enableLocationReplacement = "schedule.enable-location-replacement"
)
var supportedTTLConfigs = []string{
maxSnapshotCountKey,
maxMergeResourceSizeKey,
maxPendingPeerCountKey,
maxMergeResourceKeysKey,
leaderScheduleLimitKey,
resourceScheduleLimitKey,
replicaRescheduleLimitKey,
mergeScheduleLimitKey,
hotResourceScheduleLimitKey,
schedulerMaxWaitingOperatorKey,
enableLocationReplacement,
"default-add-peer",
"default-remove-peer",
}
// IsSupportedTTLConfig checks whether a key is a supported config item with ttl
func IsSupportedTTLConfig(key string) bool {
for _, supportedConfig := range supportedTTLConfigs {
if key == supportedConfig {
return true
}
}
return strings.HasPrefix(key, "add-peer-") || strings.HasPrefix(key, "remove-peer-")
}
// GetMaxSnapshotCount returns the number of the max snapshot which is allowed to send.
func (o *PersistOptions) GetMaxSnapshotCount() uint64 {
return o.getTTLUintOr(maxSnapshotCountKey, o.GetScheduleConfig().MaxSnapshotCount)
}
// GetMaxPendingPeerCount returns the number of the max pending peers.
func (o *PersistOptions) GetMaxPendingPeerCount() uint64 {
return o.getTTLUintOr(maxPendingPeerCountKey, o.GetScheduleConfig().MaxPendingPeerCount)
}
// GetMaxMergeResourceSize returns the max resource size.
func (o *PersistOptions) GetMaxMergeResourceSize() uint64 {
return o.getTTLUintOr(maxMergeResourceSizeKey, o.GetScheduleConfig().MaxMergeResourceSize)
}
// GetMaxMergeResourceKeys returns the max number of keys.
func (o *PersistOptions) GetMaxMergeResourceKeys() uint64 {
return o.getTTLUintOr(maxMergeResourceKeysKey, o.GetScheduleConfig().MaxMergeResourceKeys)
}
// GetSplitMergeInterval returns the interval between finishing split and starting to merge.
func (o *PersistOptions) GetSplitMergeInterval() time.Duration {
return o.GetScheduleConfig().SplitMergeInterval.Duration
}
// SetSplitMergeInterval to set the interval between finishing split and starting to merge. It's only used to test.
func (o *PersistOptions) SetSplitMergeInterval(splitMergeInterval time.Duration) {
v := o.GetScheduleConfig().Clone()
v.SplitMergeInterval = typeutil.Duration{Duration: splitMergeInterval}
o.SetScheduleConfig(v)
}
// SetContainerLimit sets a container limit for a given type and rate.
func (o *PersistOptions) SetContainerLimit(containerID uint64, typ limit.Type, ratePerMin float64) {
v := o.GetScheduleConfig().Clone()
var sc ContainerLimitConfig
var rate float64
switch typ {
case limit.AddPeer:
if _, ok := v.ContainerLimit[containerID]; !ok {
rate = DefaultContainerLimit.GetDefaultContainerLimit(limit.AddPeer)
} else {
rate = v.ContainerLimit[containerID].RemovePeer
}
sc = ContainerLimitConfig{AddPeer: ratePerMin, RemovePeer: rate}
case limit.RemovePeer:
if _, ok := v.ContainerLimit[containerID]; !ok {
rate = DefaultContainerLimit.GetDefaultContainerLimit(limit.RemovePeer)
} else {
rate = v.ContainerLimit[containerID].AddPeer
}
sc = ContainerLimitConfig{AddPeer: rate, RemovePeer: ratePerMin}
}
v.ContainerLimit[containerID] = sc
o.SetScheduleConfig(v)
}
// SetAllContainersLimit sets all container limit for a given type and rate.
func (o *PersistOptions) SetAllContainersLimit(typ limit.Type, ratePerMin float64) {
v := o.GetScheduleConfig().Clone()
switch typ {
case limit.AddPeer:
DefaultContainerLimit.SetDefaultContainerLimit(limit.AddPeer, ratePerMin)
for containerID := range v.ContainerLimit {
sc := ContainerLimitConfig{AddPeer: ratePerMin, RemovePeer: v.ContainerLimit[containerID].RemovePeer}
v.ContainerLimit[containerID] = sc
}
case limit.RemovePeer:
DefaultContainerLimit.SetDefaultContainerLimit(limit.RemovePeer, ratePerMin)
for containerID := range v.ContainerLimit {
sc := ContainerLimitConfig{AddPeer: v.ContainerLimit[containerID].AddPeer, RemovePeer: ratePerMin}
v.ContainerLimit[containerID] = sc
}
}
o.SetScheduleConfig(v)
}
// IsOneWayMergeEnabled returns if a resource can only be merged into the next resource of it.
func (o *PersistOptions) IsOneWayMergeEnabled() bool {
return o.GetScheduleConfig().EnableOneWayMerge
}
// IsCrossTableMergeEnabled returns if across table merge is enabled.
func (o *PersistOptions) IsCrossTableMergeEnabled() bool {
return o.GetScheduleConfig().EnableCrossTableMerge
}
// GetPatrolResourceInterval returns the interval of patrolling resource.
func (o *PersistOptions) GetPatrolResourceInterval() time.Duration {
return o.GetScheduleConfig().PatrolResourceInterval.Duration
}
// GetMaxContainerDownTime returns the max down time of a container.
func (o *PersistOptions) GetMaxContainerDownTime() time.Duration {
return o.GetScheduleConfig().MaxContainerDownTime.Duration
}
// GetLeaderScheduleLimit returns the limit for leader schedule.
func (o *PersistOptions) GetLeaderScheduleLimit() uint64 {
return o.getTTLUintOr(leaderScheduleLimitKey, o.GetScheduleConfig().LeaderScheduleLimit)
}
// GetResourceScheduleLimit returns the limit for resource schedule.
func (o *PersistOptions) GetResourceScheduleLimit() uint64 {
return o.getTTLUintOr(resourceScheduleLimitKey, o.GetScheduleConfig().ResourceScheduleLimit)
}
// GetReplicaScheduleLimit returns the limit for replica schedule.
func (o *PersistOptions) GetReplicaScheduleLimit() uint64 {
return o.getTTLUintOr(replicaRescheduleLimitKey, o.GetScheduleConfig().ReplicaScheduleLimit)
}
// GetMergeScheduleLimit returns the limit for merge schedule.
func (o *PersistOptions) GetMergeScheduleLimit() uint64 {
return o.getTTLUintOr(mergeScheduleLimitKey, o.GetScheduleConfig().MergeScheduleLimit)
}
// GetHotResourceScheduleLimit returns the limit for hot resource schedule.
func (o *PersistOptions) GetHotResourceScheduleLimit() uint64 {
return o.getTTLUintOr(hotResourceScheduleLimitKey, o.GetScheduleConfig().HotResourceScheduleLimit)
}
// GetContainerLimit returns the limit of a container.
func (o *PersistOptions) GetContainerLimit(containerID uint64) (returnSC ContainerLimitConfig) {
defer func() {
returnSC.RemovePeer = o.getTTLFloatOr(fmt.Sprintf("remove-peer-%v", containerID), returnSC.RemovePeer)
returnSC.AddPeer = o.getTTLFloatOr(fmt.Sprintf("add-peer-%v", containerID), returnSC.AddPeer)
}()
if limit, ok := o.GetScheduleConfig().ContainerLimit[containerID]; ok {
return limit
}
cfg := o.GetScheduleConfig().Clone()
sc := ContainerLimitConfig{
AddPeer: DefaultContainerLimit.GetDefaultContainerLimit(limit.AddPeer),
RemovePeer: DefaultContainerLimit.GetDefaultContainerLimit(limit.RemovePeer),
}
v, ok1, err := o.getTTLFloat("default-add-peer")
if err != nil {
util.GetLogger().Warning("failed to parse default-add-peer from PersistOptions's ttl storage")
}
canSetAddPeer := ok1 && err == nil
if canSetAddPeer {
returnSC.AddPeer = v
}
v, ok2, err := o.getTTLFloat("default-remove-peer")
if err != nil {
util.GetLogger().Warning("failed to parse default-remove-peer from PersistOptions's ttl storage")
}
canSetRemovePeer := ok2 && err == nil
if canSetRemovePeer {
returnSC.RemovePeer = v
}
if canSetAddPeer || canSetRemovePeer {
return returnSC
}
cfg.ContainerLimit[containerID] = sc
o.SetScheduleConfig(cfg)
return o.GetScheduleConfig().ContainerLimit[containerID]
}
// GetContainerLimitByType returns the limit of a container with a given type.
func (o *PersistOptions) GetContainerLimitByType(containerID uint64, typ limit.Type) (returned float64) {
defer func() {
if typ == limit.RemovePeer {
returned = o.getTTLFloatOr(fmt.Sprintf("remove-peer-%v", containerID), returned)
} else if typ == limit.AddPeer {
returned = o.getTTLFloatOr(fmt.Sprintf("add-peer-%v", containerID), returned)
}
}()
l := o.GetContainerLimit(containerID)
switch typ {
case limit.AddPeer:
return l.AddPeer
case limit.RemovePeer:
return l.RemovePeer
default:
panic("no such limit type")
}
}
// GetAllContainersLimit returns the limit of all containers.
func (o *PersistOptions) GetAllContainersLimit() map[uint64]ContainerLimitConfig {
return o.GetScheduleConfig().ContainerLimit
}
// GetContainerLimitMode returns the limit mode of container.
func (o *PersistOptions) GetContainerLimitMode() string {
return o.GetScheduleConfig().ContainerLimitMode
}
// GetTolerantSizeRatio gets the tolerant size ratio.
func (o *PersistOptions) GetTolerantSizeRatio() float64 {
return o.GetScheduleConfig().TolerantSizeRatio
}
// GetLowSpaceRatio returns the low space ratio.
func (o *PersistOptions) GetLowSpaceRatio() float64 {
return o.GetScheduleConfig().LowSpaceRatio
}
// GetHighSpaceRatio returns the high space ratio.
func (o *PersistOptions) GetHighSpaceRatio() float64 {
return o.GetScheduleConfig().HighSpaceRatio
}
// GetResourceScoreFormulaVersion returns the formula version config.
func (o *PersistOptions) GetResourceScoreFormulaVersion() string {
return o.GetScheduleConfig().ResourceScoreFormulaVersion
}
// GetSchedulerMaxWaitingOperator returns the number of the max waiting operators.
func (o *PersistOptions) GetSchedulerMaxWaitingOperator() uint64 {
return o.getTTLUintOr(schedulerMaxWaitingOperatorKey, o.GetScheduleConfig().SchedulerMaxWaitingOperator)
}
// GetLeaderSchedulePolicy is to get leader schedule policy.
func (o *PersistOptions) GetLeaderSchedulePolicy() core.SchedulePolicy {
return core.StringToSchedulePolicy(o.GetScheduleConfig().LeaderSchedulePolicy)
}
// IsRemoveDownReplicaEnabled returns if remove down replica is enabled.
func (o *PersistOptions) IsRemoveDownReplicaEnabled() bool {
return o.GetScheduleConfig().EnableRemoveDownReplica
}
// IsReplaceOfflineReplicaEnabled returns if replace offline replica is enabled.
func (o *PersistOptions) IsReplaceOfflineReplicaEnabled() bool {
return o.GetScheduleConfig().EnableReplaceOfflineReplica
}
// IsMakeUpReplicaEnabled returns if make up replica is enabled.
func (o *PersistOptions) IsMakeUpReplicaEnabled() bool {
return o.GetScheduleConfig().EnableMakeUpReplica
}
// IsRemoveExtraReplicaEnabled returns if remove extra replica is enabled.
func (o *PersistOptions) IsRemoveExtraReplicaEnabled() bool {
return o.GetScheduleConfig().EnableRemoveExtraReplica
}
// IsLocationReplacementEnabled returns if location replace is enabled.
func (o *PersistOptions) IsLocationReplacementEnabled() bool {
if v, ok := o.getTTLData(enableLocationReplacement); ok {
result, err := strconv.ParseBool(v)
if err == nil {
return result
}
util.GetLogger().Warning("failed to parse " + enableLocationReplacement + " from PersistOptions's ttl storage")
}
return o.GetScheduleConfig().EnableLocationReplacement
}
// IsDebugMetricsEnabled returns if debug metrics is enabled.
func (o *PersistOptions) IsDebugMetricsEnabled() bool {
return o.GetScheduleConfig().EnableDebugMetrics
}
// IsUseJointConsensus returns if using joint consensus as a operator step is enabled.
func (o *PersistOptions) IsUseJointConsensus() bool {
return o.GetScheduleConfig().EnableJointConsensus
}
// SetEnableJointConsensus sets whether to enable joint-consensus. It's only used to test.
func (o *PersistOptions) SetEnableJointConsensus(enableJointConsensus bool) {
v := o.GetScheduleConfig().Clone()
v.EnableJointConsensus = enableJointConsensus
o.SetScheduleConfig(v)
}
// GetHotResourceCacheHitsThreshold is a threshold to decide if a resource is hot.
func (o *PersistOptions) GetHotResourceCacheHitsThreshold() int {
return int(o.GetScheduleConfig().HotResourceCacheHitsThreshold)
}
// GetSchedulers gets the scheduler configurations.
func (o *PersistOptions) GetSchedulers() SchedulerConfigs {
return o.GetScheduleConfig().Schedulers
}
// AddSchedulerCfg adds the scheduler configurations.
func (o *PersistOptions) AddSchedulerCfg(tp string, args []string) {
v := o.GetScheduleConfig().Clone()
for i, schedulerCfg := range v.Schedulers {
// comparing args is to cover the case that there are schedulers in same type but not with same name
// such as two schedulers of type "evict-leader",
// one name is "evict-leader-scheduler-1" and the other is "evict-leader-scheduler-2"
if reflect.DeepEqual(schedulerCfg, SchedulerConfig{Type: tp, Args: args, Disable: false}) {
return
}
if reflect.DeepEqual(schedulerCfg, SchedulerConfig{Type: tp, Args: args, Disable: true}) {
schedulerCfg.Disable = false
v.Schedulers[i] = schedulerCfg
o.SetScheduleConfig(v)
return
}
}
v.Schedulers = append(v.Schedulers, SchedulerConfig{Type: tp, Args: args, Disable: false})
o.SetScheduleConfig(v)
}
// SetLabelProperty sets the label property.
func (o *PersistOptions) SetLabelProperty(typ, labelKey, labelValue string) {
cfg := o.GetLabelPropertyConfig().Clone()
for _, l := range cfg[typ] {
if l.Key == labelKey && l.Value == labelValue {
return
}
}
cfg[typ] = append(cfg[typ], ContainerLabel{Key: labelKey, Value: labelValue})
o.labelProperty.Store(cfg)
}
// DeleteLabelProperty deletes the label property.
func (o *PersistOptions) DeleteLabelProperty(typ, labelKey, labelValue string) {
cfg := o.GetLabelPropertyConfig().Clone()
oldLabels := cfg[typ]
cfg[typ] = []ContainerLabel{}
for _, l := range oldLabels {
if l.Key == labelKey && l.Value == labelValue {
continue
}
cfg[typ] = append(cfg[typ], l)
}
if len(cfg[typ]) == 0 {
delete(cfg, typ)
}
o.labelProperty.Store(cfg)
}
// Persist saves the configuration to the storage.
func (o *PersistOptions) Persist(storage storage.Storage) error {
cfg := &Config{
Schedule: *o.GetScheduleConfig(),
Replication: *o.GetReplicationConfig(),
LabelProperty: o.GetLabelPropertyConfig(),
}
return storage.SaveConfig(cfg)
}
func (o *PersistOptions) adjustScheduleCfg(scheduleCfg *ScheduleConfig) {
// In case we add new default schedulers.
for _, ps := range DefaultSchedulers {
if slice.NoneOf(scheduleCfg.Schedulers, func(i int) bool {
return scheduleCfg.Schedulers[i].Type == ps.Type
}) {
scheduleCfg.Schedulers = append(scheduleCfg.Schedulers, ps)
}
}
}
// CheckLabelProperty checks the label property.
func (o *PersistOptions) CheckLabelProperty(typ string, labels []metapb.Pair) bool {
pc := o.labelProperty.Load().(LabelPropertyConfig)
for _, cfg := range pc[typ] {
for _, l := range labels {
if l.Key == cfg.Key && l.Value == cfg.Value {
return true
}
}
}
return false
}
func (o *PersistOptions) getTTLUint(key string) (uint64, bool, error) {
stringForm, ok := o.getTTLData(key)
if !ok {
return 0, false, nil
}
r, err := strconv.ParseUint(stringForm, 10, 64)
return r, true, err
}
func (o *PersistOptions) getTTLUintOr(key string, defaultValue uint64) uint64 {
if v, ok, err := o.getTTLUint(key); ok {
if err == nil {
return v
}
util.GetLogger().Warning("failed to parse " + key + " from PersistOptions's ttl storage")
}
return defaultValue
}
func (o *PersistOptions) getTTLFloat(key string) (float64, bool, error) {
stringForm, ok := o.getTTLData(key)
if !ok {
return 0, false, nil
}
r, err := strconv.ParseFloat(stringForm, 64)
return r, true, err
}
func (o *PersistOptions) getTTLFloatOr(key string, defaultValue float64) float64 {
if v, ok, err := o.getTTLFloat(key); ok {
if err == nil {
return v
}
util.GetLogger().Warning("failed to parse " + key + " from PersistOptions's ttl storage")
}
return defaultValue
}
func (o *PersistOptions) getTTLData(key string) (string, bool) {
if o.ttl == nil {
return "", false
}
if result, ok := o.ttl.Get(key); ok {
return result.(string), ok
}
return "", false
}