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c171280f63
issue: #44123 - support replicate message in wal of milvus. - support CDC-replicate recovery from wal. - fix some CDC replicator bugs Signed-off-by: chyezh <chyezh@outlook.com>
96 lines
3.4 KiB
Go
96 lines
3.4 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 replicatemanager
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import (
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"context"
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"fmt"
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"strings"
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"github.com/samber/lo"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/pkg/v2/log"
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"github.com/milvus-io/milvus/pkg/v2/proto/streamingpb"
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"github.com/milvus-io/milvus/pkg/v2/util/paramtable"
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)
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// replicateManager is the implementation of ReplicateManagerClient.
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type replicateManager struct {
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ctx context.Context
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// replicators is a map of replicate pchannel name to ChannelReplicator.
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replicators map[string]Replicator
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replicatorPChannels map[string]*streamingpb.ReplicatePChannelMeta
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}
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func NewReplicateManager() *replicateManager {
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return &replicateManager{
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ctx: context.Background(),
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replicators: make(map[string]Replicator),
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replicatorPChannels: make(map[string]*streamingpb.ReplicatePChannelMeta),
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}
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}
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func bindReplicatorKey(replicateInfo *streamingpb.ReplicatePChannelMeta) string {
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return fmt.Sprintf("%s_%s", replicateInfo.GetSourceChannelName(), replicateInfo.GetTargetChannelName())
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}
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func (r *replicateManager) CreateReplicator(replicateInfo *streamingpb.ReplicatePChannelMeta) {
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logger := log.With(
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zap.String("sourceChannel", replicateInfo.GetSourceChannelName()),
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zap.String("targetChannel", replicateInfo.GetTargetChannelName()),
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)
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currentClusterID := paramtable.Get().CommonCfg.ClusterPrefix.GetValue()
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if !strings.Contains(replicateInfo.GetSourceChannelName(), currentClusterID) {
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// current cluster is not source cluster, skip create replicator
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return
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}
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replicatorKey := bindReplicatorKey(replicateInfo)
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_, ok := r.replicators[replicatorKey]
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if ok {
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logger.Debug("replicator already exists, skip create replicator")
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return
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}
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replicator := NewChannelReplicator(replicateInfo)
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replicator.StartReplicate()
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r.replicators[replicatorKey] = replicator
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r.replicatorPChannels[replicatorKey] = replicateInfo
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logger.Info("created replicator for replicate pchannel")
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}
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func (r *replicateManager) RemoveOutOfTargetReplicators(targetReplicatePChannels []*streamingpb.ReplicatePChannelMeta) {
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targets := lo.KeyBy(targetReplicatePChannels, bindReplicatorKey)
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for replicatorKey, replicator := range r.replicators {
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if pchannelMeta, ok := targets[replicatorKey]; !ok {
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replicator.StopReplicate()
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delete(r.replicators, replicatorKey)
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delete(r.replicatorPChannels, replicatorKey)
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log.Info("removed replicator due to out of target",
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zap.String("sourceChannel", pchannelMeta.GetSourceChannelName()),
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zap.String("targetChannel", pchannelMeta.GetTargetChannelName()),
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)
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}
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}
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}
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func (r *replicateManager) Close() {
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for _, replicator := range r.replicators {
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replicator.StopReplicate()
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}
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}
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