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balance_leader.go
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/
balance_leader.go
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// Copyright 2017 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 (
"github.com/pingcap/kvproto/pkg/metapb"
"github.com/pingcap/pd/server/core"
"github.com/pingcap/pd/tools/pd-simulator/simulator/simutil"
)
func newBalanceLeader() *Case {
var simCase Case
var id idAllocator
for i := 1; i <= 3; 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 < 1000; i++ {
peers := []*metapb.Peer{
{Id: id.nextID(), StoreId: 1},
{Id: id.nextID(), StoreId: 2},
{Id: id.nextID(), StoreId: 3},
}
simCase.Regions = append(simCase.Regions, Region{
ID: id.nextID(),
Peers: peers,
Leader: peers[0],
Size: 96 * MB,
Keys: 960000,
})
}
simCase.MaxID = id.maxID
simCase.Checker = func(regions *core.RegionsInfo) bool {
count1 := regions.GetStoreLeaderCount(1)
count2 := regions.GetStoreLeaderCount(2)
count3 := regions.GetStoreLeaderCount(3)
simutil.Logger.Infof("leader counts: %v %v %v", count1, count2, count3)
return count1 <= 350 &&
count2 >= 300 &&
count3 >= 300
}
return &simCase
}