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region_merge.go
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region_merge.go
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// Copyright 2018 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package cases
import (
"math/rand"
"github.com/pingcap/kvproto/pkg/metapb"
"github.com/pingcap/pd/server/core"
"github.com/pingcap/pd/tools/pd-simulator/simulator/simutil"
)
func newRegionMerge() *Case {
var simCase Case
var id idAllocator
// Initialize the cluster
for i := 1; i <= 4; i++ {
simCase.Stores = append(simCase.Stores, &Store{
ID: id.nextID(),
Status: metapb.StoreState_Up,
Capacity: 1 * TB,
Available: 900 * GB,
Version: "2.1.0",
})
}
for i := 0; i < 40; i++ {
storeIDs := rand.Perm(4)
peers := []*metapb.Peer{
{Id: id.nextID(), StoreId: uint64(storeIDs[0] + 1)},
{Id: id.nextID(), StoreId: uint64(storeIDs[1] + 1)},
{Id: id.nextID(), StoreId: uint64(storeIDs[2] + 1)},
}
simCase.Regions = append(simCase.Regions, Region{
ID: id.nextID(),
Peers: peers,
Leader: peers[0],
Size: 10 * MB,
Keys: 100000,
})
}
simCase.MaxID = id.maxID
// Checker description
simCase.Checker = func(regions *core.RegionsInfo) bool {
count1 := regions.GetStoreRegionCount(1)
count2 := regions.GetStoreRegionCount(2)
count3 := regions.GetStoreRegionCount(3)
count4 := regions.GetStoreRegionCount(4)
sum := count1 + count2 + count3 + count4
simutil.Logger.Infof("region counts: %v %v %v %v", count1, count2, count3, count4)
return sum == 30
}
return &simCase
}