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proxy_client_manager.go
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/
proxy_client_manager.go
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// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package proxyutil
import (
"context"
"fmt"
"sync"
"github.com/cockroachdb/errors"
"go.uber.org/zap"
"golang.org/x/sync/errgroup"
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
"github.com/milvus-io/milvus-proto/go-api/v2/milvuspb"
grpcproxyclient "github.com/milvus-io/milvus/internal/distributed/proxy/client"
"github.com/milvus-io/milvus/internal/proto/proxypb"
"github.com/milvus-io/milvus/internal/types"
"github.com/milvus-io/milvus/internal/util/sessionutil"
"github.com/milvus-io/milvus/pkg/log"
"github.com/milvus-io/milvus/pkg/metrics"
"github.com/milvus-io/milvus/pkg/util/commonpbutil"
"github.com/milvus-io/milvus/pkg/util/merr"
"github.com/milvus-io/milvus/pkg/util/metricsinfo"
"github.com/milvus-io/milvus/pkg/util/typeutil"
)
type ExpireCacheConfig struct {
msgType commonpb.MsgType
}
func (c ExpireCacheConfig) Apply(req *proxypb.InvalidateCollMetaCacheRequest) {
if req.GetBase() == nil {
req.Base = commonpbutil.NewMsgBase()
}
req.Base.MsgType = c.msgType
}
func DefaultExpireCacheConfig() ExpireCacheConfig {
return ExpireCacheConfig{}
}
type ExpireCacheOpt func(c *ExpireCacheConfig)
func SetMsgType(msgType commonpb.MsgType) ExpireCacheOpt {
return func(c *ExpireCacheConfig) {
c.msgType = msgType
}
}
type ProxyCreator func(ctx context.Context, addr string, nodeID int64) (types.ProxyClient, error)
func DefaultProxyCreator(ctx context.Context, addr string, nodeID int64) (types.ProxyClient, error) {
cli, err := grpcproxyclient.NewClient(ctx, addr, nodeID)
if err != nil {
return nil, err
}
return cli, nil
}
type ProxyClientManagerHelper struct {
afterConnect func()
}
var defaultClientManagerHelper = ProxyClientManagerHelper{
afterConnect: func() {},
}
type ProxyClientManagerInterface interface {
AddProxyClient(session *sessionutil.Session)
AddProxyClients(session []*sessionutil.Session)
GetProxyClients() *typeutil.ConcurrentMap[int64, types.ProxyClient]
DelProxyClient(s *sessionutil.Session)
GetProxyCount() int
InvalidateCollectionMetaCache(ctx context.Context, request *proxypb.InvalidateCollMetaCacheRequest, opts ...ExpireCacheOpt) error
InvalidateShardLeaderCache(ctx context.Context, request *proxypb.InvalidateShardLeaderCacheRequest) error
InvalidateCredentialCache(ctx context.Context, request *proxypb.InvalidateCredCacheRequest) error
UpdateCredentialCache(ctx context.Context, request *proxypb.UpdateCredCacheRequest) error
RefreshPolicyInfoCache(ctx context.Context, req *proxypb.RefreshPolicyInfoCacheRequest) error
GetProxyMetrics(ctx context.Context) ([]*milvuspb.GetMetricsResponse, error)
SetRates(ctx context.Context, request *proxypb.SetRatesRequest) error
GetComponentStates(ctx context.Context) (map[int64]*milvuspb.ComponentStates, error)
}
type ProxyClientManager struct {
creator ProxyCreator
proxyClient *typeutil.ConcurrentMap[int64, types.ProxyClient]
helper ProxyClientManagerHelper
}
func NewProxyClientManager(creator ProxyCreator) *ProxyClientManager {
return &ProxyClientManager{
creator: creator,
proxyClient: typeutil.NewConcurrentMap[int64, types.ProxyClient](),
helper: defaultClientManagerHelper,
}
}
func (p *ProxyClientManager) AddProxyClients(sessions []*sessionutil.Session) {
for _, session := range sessions {
p.AddProxyClient(session)
}
}
func (p *ProxyClientManager) GetProxyClients() *typeutil.ConcurrentMap[int64, types.ProxyClient] {
return p.proxyClient
}
func (p *ProxyClientManager) AddProxyClient(session *sessionutil.Session) {
_, ok := p.proxyClient.Get(session.ServerID)
if ok {
return
}
p.connect(session)
p.updateProxyNumMetric()
}
// GetProxyCount returns number of proxy clients.
func (p *ProxyClientManager) GetProxyCount() int {
return p.proxyClient.Len()
}
// mutex.Lock is required before calling this method.
func (p *ProxyClientManager) updateProxyNumMetric() {
metrics.RootCoordProxyCounter.WithLabelValues().Set(float64(p.proxyClient.Len()))
}
func (p *ProxyClientManager) connect(session *sessionutil.Session) {
pc, err := p.creator(context.Background(), session.Address, session.ServerID)
if err != nil {
log.Warn("failed to create proxy client", zap.String("address", session.Address), zap.Int64("serverID", session.ServerID), zap.Error(err))
return
}
_, ok := p.proxyClient.GetOrInsert(session.GetServerID(), pc)
if ok {
pc.Close()
return
}
log.Info("succeed to create proxy client", zap.String("address", session.Address), zap.Int64("serverID", session.ServerID))
p.helper.afterConnect()
}
func (p *ProxyClientManager) DelProxyClient(s *sessionutil.Session) {
cli, ok := p.proxyClient.GetAndRemove(s.GetServerID())
if ok {
cli.Close()
}
p.updateProxyNumMetric()
log.Info("remove proxy client", zap.String("proxy address", s.Address), zap.Int64("proxy id", s.ServerID))
}
func (p *ProxyClientManager) InvalidateCollectionMetaCache(ctx context.Context, request *proxypb.InvalidateCollMetaCacheRequest, opts ...ExpireCacheOpt) error {
c := DefaultExpireCacheConfig()
for _, opt := range opts {
opt(&c)
}
c.Apply(request)
if p.proxyClient.Len() == 0 {
log.Warn("proxy client is empty, InvalidateCollectionMetaCache will not send to any client")
return nil
}
group := &errgroup.Group{}
p.proxyClient.Range(func(key int64, value types.ProxyClient) bool {
k, v := key, value
group.Go(func() error {
sta, err := v.InvalidateCollectionMetaCache(ctx, request)
if err != nil {
if errors.Is(err, merr.ErrNodeNotFound) {
log.Warn("InvalidateCollectionMetaCache failed due to proxy service not found", zap.Error(err))
return nil
}
if errors.Is(err, merr.ErrServiceUnimplemented) {
return nil
}
return fmt.Errorf("InvalidateCollectionMetaCache failed, proxyID = %d, err = %s", k, err)
}
if sta.ErrorCode != commonpb.ErrorCode_Success {
return fmt.Errorf("InvalidateCollectionMetaCache failed, proxyID = %d, err = %s", k, sta.Reason)
}
return nil
})
return true
})
return group.Wait()
}
// InvalidateCredentialCache TODO: too many codes similar to InvalidateCollectionMetaCache.
func (p *ProxyClientManager) InvalidateCredentialCache(ctx context.Context, request *proxypb.InvalidateCredCacheRequest) error {
if p.proxyClient.Len() == 0 {
log.Warn("proxy client is empty, InvalidateCredentialCache will not send to any client")
return nil
}
group := &errgroup.Group{}
p.proxyClient.Range(func(key int64, value types.ProxyClient) bool {
k, v := key, value
group.Go(func() error {
sta, err := v.InvalidateCredentialCache(ctx, request)
if err != nil {
return fmt.Errorf("InvalidateCredentialCache failed, proxyID = %d, err = %s", k, err)
}
if sta.ErrorCode != commonpb.ErrorCode_Success {
return fmt.Errorf("InvalidateCredentialCache failed, proxyID = %d, err = %s", k, sta.Reason)
}
return nil
})
return true
})
return group.Wait()
}
// UpdateCredentialCache TODO: too many codes similar to InvalidateCollectionMetaCache.
func (p *ProxyClientManager) UpdateCredentialCache(ctx context.Context, request *proxypb.UpdateCredCacheRequest) error {
if p.proxyClient.Len() == 0 {
log.Warn("proxy client is empty, UpdateCredentialCache will not send to any client")
return nil
}
group := &errgroup.Group{}
p.proxyClient.Range(func(key int64, value types.ProxyClient) bool {
k, v := key, value
group.Go(func() error {
sta, err := v.UpdateCredentialCache(ctx, request)
if err != nil {
return fmt.Errorf("UpdateCredentialCache failed, proxyID = %d, err = %s", k, err)
}
if sta.ErrorCode != commonpb.ErrorCode_Success {
return fmt.Errorf("UpdateCredentialCache failed, proxyID = %d, err = %s", k, sta.Reason)
}
return nil
})
return true
})
return group.Wait()
}
// RefreshPolicyInfoCache TODO: too many codes similar to InvalidateCollectionMetaCache.
func (p *ProxyClientManager) RefreshPolicyInfoCache(ctx context.Context, req *proxypb.RefreshPolicyInfoCacheRequest) error {
if p.proxyClient.Len() == 0 {
log.Warn("proxy client is empty, RefreshPrivilegeInfoCache will not send to any client")
return nil
}
group := &errgroup.Group{}
p.proxyClient.Range(func(key int64, value types.ProxyClient) bool {
k, v := key, value
group.Go(func() error {
status, err := v.RefreshPolicyInfoCache(ctx, req)
if err != nil {
return fmt.Errorf("RefreshPolicyInfoCache failed, proxyID = %d, err = %s", k, err)
}
if status.GetErrorCode() != commonpb.ErrorCode_Success {
return merr.Error(status)
}
return nil
})
return true
})
return group.Wait()
}
// GetProxyMetrics sends requests to proxies to get metrics.
func (p *ProxyClientManager) GetProxyMetrics(ctx context.Context) ([]*milvuspb.GetMetricsResponse, error) {
if p.proxyClient.Len() == 0 {
log.Warn("proxy client is empty, GetMetrics will not send to any client")
return nil, nil
}
req, err := metricsinfo.ConstructRequestByMetricType(metricsinfo.SystemInfoMetrics)
if err != nil {
return nil, err
}
group := &errgroup.Group{}
var metricRspsMu sync.Mutex
metricRsps := make([]*milvuspb.GetMetricsResponse, 0)
p.proxyClient.Range(func(key int64, value types.ProxyClient) bool {
k, v := key, value
group.Go(func() error {
rsp, err := v.GetProxyMetrics(ctx, req)
if err != nil {
return fmt.Errorf("GetMetrics failed, proxyID = %d, err = %s", k, err)
}
if rsp.GetStatus().GetErrorCode() != commonpb.ErrorCode_Success {
return fmt.Errorf("GetMetrics failed, proxyID = %d, err = %s", k, rsp.GetStatus().GetReason())
}
metricRspsMu.Lock()
metricRsps = append(metricRsps, rsp)
metricRspsMu.Unlock()
return nil
})
return true
})
err = group.Wait()
if err != nil {
return nil, err
}
return metricRsps, nil
}
// SetRates notifies Proxy to limit rates of requests.
func (p *ProxyClientManager) SetRates(ctx context.Context, request *proxypb.SetRatesRequest) error {
if p.proxyClient.Len() == 0 {
log.Warn("proxy client is empty, SetRates will not send to any client")
return nil
}
group := &errgroup.Group{}
p.proxyClient.Range(func(key int64, value types.ProxyClient) bool {
k, v := key, value
group.Go(func() error {
sta, err := v.SetRates(ctx, request)
if err != nil {
return fmt.Errorf("SetRates failed, proxyID = %d, err = %s", k, err)
}
if sta.GetErrorCode() != commonpb.ErrorCode_Success {
return fmt.Errorf("SetRates failed, proxyID = %d, err = %s", k, sta.Reason)
}
return nil
})
return true
})
return group.Wait()
}
func (p *ProxyClientManager) GetComponentStates(ctx context.Context) (map[int64]*milvuspb.ComponentStates, error) {
group, ctx := errgroup.WithContext(ctx)
states := make(map[int64]*milvuspb.ComponentStates)
p.proxyClient.Range(func(key int64, value types.ProxyClient) bool {
k, v := key, value
group.Go(func() error {
sta, err := v.GetComponentStates(ctx, &milvuspb.GetComponentStatesRequest{})
if err != nil {
return err
}
states[k] = sta
return nil
})
return true
})
err := group.Wait()
if err != nil {
return nil, err
}
return states, nil
}
func (p *ProxyClientManager) InvalidateShardLeaderCache(ctx context.Context, request *proxypb.InvalidateShardLeaderCacheRequest) error {
if p.proxyClient.Len() == 0 {
log.Warn("proxy client is empty, InvalidateShardLeaderCache will not send to any client")
return nil
}
group := &errgroup.Group{}
p.proxyClient.Range(func(key int64, value types.ProxyClient) bool {
k, v := key, value
group.Go(func() error {
sta, err := v.InvalidateShardLeaderCache(ctx, request)
if err != nil {
if errors.Is(err, merr.ErrNodeNotFound) {
log.Warn("InvalidateShardLeaderCache failed due to proxy service not found", zap.Error(err))
return nil
}
return fmt.Errorf("InvalidateShardLeaderCache failed, proxyID = %d, err = %s", k, err)
}
if sta.ErrorCode != commonpb.ErrorCode_Success {
return fmt.Errorf("InvalidateShardLeaderCache failed, proxyID = %d, err = %s", k, sta.Reason)
}
return nil
})
return true
})
return group.Wait()
}