mirror of
https://gitee.com/milvus-io/milvus.git
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113 lines
2.9 KiB
Go
113 lines
2.9 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package dist
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import (
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"context"
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"sync"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/querycoordv2/meta"
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"github.com/milvus-io/milvus/internal/querycoordv2/session"
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"github.com/milvus-io/milvus/internal/querycoordv2/task"
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"github.com/milvus-io/milvus/pkg/log"
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)
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type Controller interface {
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StartDistInstance(ctx context.Context, nodeID int64)
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Remove(nodeID int64)
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SyncAll(ctx context.Context)
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Stop()
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}
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type ControllerImpl struct {
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mu sync.RWMutex
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handlers map[int64]*distHandler
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client session.Cluster
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nodeManager *session.NodeManager
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dist *meta.DistributionManager
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targetMgr *meta.TargetManager
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scheduler task.Scheduler
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}
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func (dc *ControllerImpl) StartDistInstance(ctx context.Context, nodeID int64) {
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dc.mu.Lock()
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defer dc.mu.Unlock()
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if _, ok := dc.handlers[nodeID]; ok {
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log.Info("node has started", zap.Int64("nodeID", nodeID))
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return
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}
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h := newDistHandler(ctx, nodeID, dc.client, dc.nodeManager, dc.scheduler, dc.dist, dc.targetMgr)
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dc.handlers[nodeID] = h
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}
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func (dc *ControllerImpl) Remove(nodeID int64) {
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dc.mu.Lock()
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defer dc.mu.Unlock()
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if h, ok := dc.handlers[nodeID]; ok {
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h.stop()
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delete(dc.handlers, nodeID)
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}
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}
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func (dc *ControllerImpl) SyncAll(ctx context.Context) {
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dc.mu.RLock()
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defer dc.mu.RUnlock()
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wg := sync.WaitGroup{}
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for _, h := range dc.handlers {
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wg.Add(1)
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go func(handler *distHandler) {
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defer wg.Done()
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resp, err := handler.getDistribution(ctx)
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if err != nil {
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log.Warn("SyncAll come across err when getting data distribution", zap.Error(err))
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} else {
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handler.handleDistResp(resp)
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}
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}(h)
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}
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wg.Wait()
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}
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func (dc *ControllerImpl) Stop() {
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dc.mu.Lock()
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defer dc.mu.Unlock()
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for nodeID, h := range dc.handlers {
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h.stop()
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delete(dc.handlers, nodeID)
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}
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}
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func NewDistController(
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client session.Cluster,
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nodeManager *session.NodeManager,
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dist *meta.DistributionManager,
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targetMgr *meta.TargetManager,
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scheduler task.Scheduler,
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) *ControllerImpl {
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return &ControllerImpl{
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handlers: make(map[int64]*distHandler),
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client: client,
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nodeManager: nodeManager,
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dist: dist,
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targetMgr: targetMgr,
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scheduler: scheduler,
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}
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}
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