mcs: forward region requests to scheduling server #7023
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| // Copyright 2023 TiKV Project Authors. | ||
| // | ||
| // Licensed 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. | ||
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| package cluster | ||
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| import ( | ||
| "github.com/tikv/pd/pkg/core" | ||
| "github.com/tikv/pd/pkg/schedule" | ||
| "github.com/tikv/pd/pkg/schedule/placement" | ||
| "github.com/tikv/pd/pkg/statistics" | ||
| ) | ||
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| // Cluster provides an overview of a cluster's basic information. | ||
| type Cluster interface { | ||
| GetHotStat() *statistics.HotStat | ||
| GetRegionStats() *statistics.RegionStatistics | ||
| GetLabelStats() *statistics.LabelStatistics | ||
| GetCoordinator() *schedule.Coordinator | ||
| GetRuleManager() *placement.RuleManager | ||
| } | ||
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| // HandleStatsAsync handles the flow asynchronously. | ||
| func HandleStatsAsync(c Cluster, region *core.RegionInfo) { | ||
| c.GetHotStat().CheckWriteAsync(statistics.NewCheckExpiredItemTask(region)) | ||
| c.GetHotStat().CheckReadAsync(statistics.NewCheckExpiredItemTask(region)) | ||
| reportInterval := region.GetInterval() | ||
| interval := reportInterval.GetEndTimestamp() - reportInterval.GetStartTimestamp() | ||
| for _, peer := range region.GetPeers() { | ||
| peerInfo := core.NewPeerInfo(peer, region.GetWriteLoads(), interval) | ||
| c.GetHotStat().CheckWriteAsync(statistics.NewCheckPeerTask(peerInfo, region)) | ||
| } | ||
| c.GetCoordinator().GetSchedulersController().CheckTransferWitnessLeader(region) | ||
| } | ||
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| // HandleOverlaps handles the overlap regions. | ||
| func HandleOverlaps(c Cluster, overlaps []*core.RegionInfo) { | ||
| for _, item := range overlaps { | ||
| if c.GetRegionStats() != nil { | ||
| c.GetRegionStats().ClearDefunctRegion(item.GetID()) | ||
| } | ||
| c.GetLabelStats().ClearDefunctRegion(item.GetID()) | ||
| c.GetRuleManager().InvalidCache(item.GetID()) | ||
| } | ||
| } | ||
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| // Collect collects the cluster information. | ||
| func Collect(c Cluster, region *core.RegionInfo, stores []*core.StoreInfo, hasRegionStats, isNew, isPrepared bool) { | ||
| if hasRegionStats { | ||
| c.GetRegionStats().Observe(region, stores) | ||
| } | ||
| if !isPrepared && isNew { | ||
| c.GetCoordinator().GetPrepareChecker().Collect(region) | ||
| } | ||
| } |
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Maybe we can reduce some of the duplicate functions, and of course, we can do it in the next pr.