pd/pkg/core/store_stats_test.go

// Copyright 2020 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.

package core

import (
	"testing"

	"github.com/docker/go-units"
	"github.com/stretchr/testify/require"

	"github.com/pingcap/kvproto/pkg/metapb"
	"github.com/pingcap/kvproto/pkg/pdpb"
)

func TestStoreStats(t *testing.T) {
	re := require.New(t)
	meta := &metapb.Store{Id: 1, State: metapb.StoreState_Up}
	store := NewStoreInfo(meta, SetStoreStats(&pdpb.StoreStats{
		Capacity:  uint64(200 * units.GiB),
		UsedSize:  uint64(50 * units.GiB),
		Available: uint64(150 * units.GiB),
	}))

	re.Equal(uint64(200*units.GiB), store.GetCapacity())
	re.Equal(uint64(50*units.GiB), store.GetUsedSize())
	re.Equal(uint64(150*units.GiB), store.GetAvailable())
	re.Equal(uint64(150*units.GiB), store.GetAvgAvailable())

	store = store.Clone(SetStoreStats(&pdpb.StoreStats{
		Capacity:  uint64(200 * units.GiB),
		UsedSize:  uint64(50 * units.GiB),
		Available: uint64(160 * units.GiB),
	}))

	re.Equal(uint64(160*units.GiB), store.GetAvailable())
	re.Greater(store.GetAvgAvailable(), uint64(150*units.GiB))
	re.Less(store.GetAvgAvailable(), uint64(160*units.GiB))
}

func TestDFSStats(t *testing.T) {
	re := require.New(t)
	meta := &metapb.Store{Id: 1, State: metapb.StoreState_Up}
	storeStats := &pdpb.StoreStats{
		Capacity:  uint64(200 * units.GiB),
		UsedSize:  uint64(50 * units.GiB),
		Available: uint64(150 * units.GiB),
	}
	store := NewStoreInfo(meta, SetStoreStats(storeStats))
	scopedDFSStats := store.TakeScopedDFSStats()
	re.Empty(scopedDFSStats)

	storeStats.Dfs = []*pdpb.DfsStatItem{
		{
			Scope: &pdpb.DfsStatScope{
				KeyspaceId: 1,
				Component:  "test-component",
			},
			WrittenBytes:  100,
			WriteRequests: 100,
		},
		{
			Scope: &pdpb.DfsStatScope{
				KeyspaceId: 2,
				Component:  "test-component",
			},
			WrittenBytes:  200,
			WriteRequests: 200,
		},
	}
	store = store.Clone(SetStoreStats(storeStats))
	scopedDFSStats = store.TakeScopedDFSStats()
	re.Len(scopedDFSStats, 2)
	re.Equal(storeStats.Dfs[0].WrittenBytes, scopedDFSStats[*storeStats.Dfs[0].Scope].WrittenBytes)
	re.Equal(storeStats.Dfs[0].WriteRequests, scopedDFSStats[*storeStats.Dfs[0].Scope].WriteRequests)
	re.Equal(storeStats.Dfs[1].WrittenBytes, scopedDFSStats[*storeStats.Dfs[1].Scope].WrittenBytes)
	re.Equal(storeStats.Dfs[1].WriteRequests, scopedDFSStats[*storeStats.Dfs[1].Scope].WriteRequests)

	storeStats.Dfs = []*pdpb.DfsStatItem{
		{
			Scope: &pdpb.DfsStatScope{
				KeyspaceId: 1,
				Component:  "test-component",
			},
			WrittenBytes:  100,
			WriteRequests: 100,
		},
		{
			Scope: &pdpb.DfsStatScope{
				KeyspaceId: 1,
				Component:  "test-component",
			},
			WrittenBytes:  200,
			WriteRequests: 200,
		},
	}
	store = store.Clone(SetStoreStats(storeStats))
	scopedDFSStats = store.TakeScopedDFSStats()
	re.Len(scopedDFSStats, 1)
	re.Equal(storeStats.Dfs[0].WrittenBytes+storeStats.Dfs[1].WrittenBytes, scopedDFSStats[*storeStats.Dfs[0].Scope].WrittenBytes)
	re.Equal(storeStats.Dfs[0].WriteRequests+storeStats.Dfs[1].WriteRequests, scopedDFSStats[*storeStats.Dfs[0].Scope].WriteRequests)

	storeStats.Dfs = []*pdpb.DfsStatItem{
		{
			Scope: &pdpb.DfsStatScope{
				KeyspaceId: 1,
				Component:  "test-component",
			},
			WrittenBytes:  10,
			WriteRequests: 0,
		},
		{
			Scope: &pdpb.DfsStatScope{
				KeyspaceId: 2,
				Component:  "test-component",
			},
			WrittenBytes:  0,
			WriteRequests: 0,
		},
	}
	store = store.Clone(SetStoreStats(storeStats))
	scopedDFSStats = store.TakeScopedDFSStats()
	re.Len(scopedDFSStats, 1)
	re.Equal(storeStats.Dfs[0].WrittenBytes, scopedDFSStats[*storeStats.Dfs[0].Scope].WrittenBytes)
	re.Equal(storeStats.Dfs[0].WriteRequests, scopedDFSStats[*storeStats.Dfs[0].Scope].WriteRequests)
}