/
add_nodes_dynamic.go
91 lines (82 loc) · 2.36 KB
/
add_nodes_dynamic.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 (
"github.com/pingcap/kvproto/pkg/metapb"
"github.com/pingcap/pd/server/core"
"github.com/pingcap/pd/tools/pd-simulator/simulator/simutil"
"go.uber.org/zap"
)
func newAddNodesDynamic() *Case {
var simCase Case
var id idAllocator
for i := 1; i <= 8; i++ {
simCase.Stores = append(simCase.Stores, &Store{
ID: id.nextID(),
Status: metapb.StoreState_Up,
Capacity: 1 * TB,
Available: 900 * GB,
Version: "2.1.0",
})
}
var ids []uint64
for i := 1; i <= 8; i++ {
ids = append(ids, id.nextID())
}
for i := 0; i < 2000; i++ {
peers := []*metapb.Peer{
{Id: id.nextID(), StoreId: uint64(i)%8 + 1},
{Id: id.nextID(), StoreId: uint64(i+1)%8 + 1},
{Id: id.nextID(), StoreId: uint64(i+2)%8 + 1},
}
simCase.Regions = append(simCase.Regions, Region{
ID: id.nextID(),
Peers: peers,
Leader: peers[0],
Size: 96 * MB,
Keys: 960000,
})
}
simCase.MaxID = id.maxID
numNodes := 8
e := &AddNodesInner{}
e.Step = func(tick int64) uint64 {
if tick%100 == 0 && numNodes < 16 {
numNodes++
nodeID := ids[0]
ids = append(ids[:0], ids[1:]...)
return nodeID
}
return 0
}
simCase.Events = []EventInner{e}
simCase.Checker = func(regions *core.RegionsInfo) bool {
res := true
leaderCounts := make([]int, 0, numNodes)
regionCounts := make([]int, 0, numNodes)
for i := 1; i <= numNodes; i++ {
leaderCount := regions.GetStoreLeaderCount(uint64(i))
regionCount := regions.GetStoreRegionCount(uint64(i))
leaderCounts = append(leaderCounts, leaderCount)
regionCounts = append(regionCounts, regionCount)
if leaderCount > 135 || leaderCount < 115 {
res = false
}
if regionCount > 390 || regionCount < 360 {
res = false
}
}
simutil.Logger.Info("current counts", zap.Ints("leader", leaderCounts), zap.Ints("region", regionCounts))
return res
}
return &simCase
}