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78010262f0
issue: https://github.com/milvus-io/milvus/issues/41690 - Merge leader view and channel management into ChannelDistManager, allowing a channel to have multiple delegators. - Improve shard leader switching to ensure a single replica only has one shard leader per channel. The shard leader handles all resource loading and query requests. - Refine the serviceable mechanism: after QC completes loading, sync the query view to the delegator. The delegator then determines its serviceable status based on the query view. - When a delegator encounters forwarding query or deletion failures, mark the corresponding segment as offline and transition it to an unserviceable state. Signed-off-by: Wei Liu <wei.liu@zilliz.com>
61 lines
2.1 KiB
Go
61 lines
2.1 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 meta
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import (
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/json"
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"github.com/milvus-io/milvus/pkg/v2/log"
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"github.com/milvus-io/milvus/pkg/v2/util/metricsinfo"
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)
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type DistributionManager struct {
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SegmentDistManager SegmentDistManagerInterface
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ChannelDistManager ChannelDistManagerInterface
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}
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func NewDistributionManager() *DistributionManager {
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return &DistributionManager{
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SegmentDistManager: NewSegmentDistManager(),
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ChannelDistManager: NewChannelDistManager(),
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}
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}
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// GetDistributionJSON returns a JSON representation of the current distribution state.
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// It includes segments, DM channels, and leader views.
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// If there are no segments, channels, or leader views, it returns an empty string.
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// In case of an error during JSON marshaling, it returns the error.
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func (dm *DistributionManager) GetDistributionJSON(collectionID int64) string {
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segments := dm.SegmentDistManager.GetSegmentDist(collectionID)
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channels := dm.ChannelDistManager.GetChannelDist(collectionID)
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leaderView := dm.ChannelDistManager.GetLeaderView(collectionID)
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dist := &metricsinfo.QueryCoordDist{
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Segments: segments,
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DMChannels: channels,
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LeaderViews: leaderView,
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}
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v, err := json.Marshal(dist)
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if err != nil {
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log.Warn("failed to marshal dist", zap.Error(err))
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return ""
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}
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return string(v)
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}
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