milvus/internal/datanode/param_table.go

// Copyright (C) 2019-2020 Zilliz. All rights reserved.
//
// 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 datanode

import (
	"path"
	"strconv"
	"strings"
	"sync"
	"time"

	"github.com/milvus-io/milvus/internal/util/paramtable"
)

// ParamTable in DataNode contains all configs for DataNode
type ParamTable struct {
	paramtable.BaseTable

	// === DataNode Internal Components Configs ===
	NodeID                  UniqueID
	IP                      string
	Port                    int
	FlowGraphMaxQueueLength int32
	FlowGraphMaxParallelism int32
	FlushInsertBufferSize   int64
	InsertBinlogRootPath    string
	StatsBinlogRootPath     string
	Alias                   string // Different datanode in one machine

	// === DataNode External Components Configs ===
	// --- Pulsar ---
	PulsarAddress string

	// --- Rocksmq ---
	RocksmqPath string

	// --- Cluster channels ---
	ClusterChannelPrefix string

	// - seg statistics channel -
	SegmentStatisticsChannelName string

	// - timetick channel -
	TimeTickChannelName string

	// - channel subname -
	MsgChannelSubName string

	// --- ETCD ---
	EtcdEndpoints []string
	MetaRootPath  string

	// --- MinIO ---
	MinioAddress         string
	MinioAccessKeyID     string
	MinioSecretAccessKey string
	MinioUseSSL          bool
	MinioBucketName      string

	CreatedTime time.Time
	UpdatedTime time.Time
}

// Params is global var in DataNode
var Params ParamTable
var once sync.Once

// InitAlias init this DataNode alias
func (p *ParamTable) InitAlias(alias string) {
	p.Alias = alias
}

// InitOnce call params Init only once
func (p *ParamTable) InitOnce() {
	once.Do(func() {
		p.Init()
	})
}

// Init initializes DataNode configs
func (p *ParamTable) Init() {
	p.BaseTable.Init()
	err := p.LoadYaml("advanced/data_node.yaml")
	if err != nil {
		panic(err)
	}

	// === DataNode Internal Components Configs ===
	p.initFlowGraphMaxQueueLength()
	p.initFlowGraphMaxParallelism()
	p.initFlushInsertBufferSize()
	p.initInsertBinlogRootPath()
	p.initStatsBinlogRootPath()

	// === DataNode External Components Configs ===
	// --- Pulsar ---
	p.initPulsarAddress()

	p.initRocksmqPath()

	// Has to init global msgchannel prefix before other channel names
	p.initClusterMsgChannelPrefix()

	// - seg statistics channel -
	p.initSegmentStatisticsChannelName()

	// - timetick channel -
	p.initTimeTickChannelName()

	// --- ETCD ---
	p.initEtcdEndpoints()
	p.initMetaRootPath()

	// --- MinIO ---
	p.initMinioAddress()
	p.initMinioAccessKeyID()
	p.initMinioSecretAccessKey()
	p.initMinioUseSSL()
	p.initMinioBucketName()

	p.initRoleName()
}

// ==== DataNode internal components configs ====
// ---- flowgraph configs ----
func (p *ParamTable) initFlowGraphMaxQueueLength() {
	p.FlowGraphMaxQueueLength = p.ParseInt32("dataNode.dataSync.flowGraph.maxQueueLength")
}

func (p *ParamTable) initFlowGraphMaxParallelism() {
	p.FlowGraphMaxParallelism = p.ParseInt32("dataNode.dataSync.flowGraph.maxParallelism")
}

// ---- flush configs ----
func (p *ParamTable) initFlushInsertBufferSize() {
	p.FlushInsertBufferSize = p.ParseInt64("_DATANODE_INSERTBUFSIZE")
}

func (p *ParamTable) initInsertBinlogRootPath() {
	// GOOSE TODO: rootPath change to  TenentID
	rootPath, err := p.Load("minio.rootPath")
	if err != nil {
		panic(err)
	}
	p.InsertBinlogRootPath = path.Join(rootPath, "insert_log")
}

func (p *ParamTable) initStatsBinlogRootPath() {
	rootPath, err := p.Load("minio.rootPath")
	if err != nil {
		panic(err)
	}
	p.StatsBinlogRootPath = path.Join(rootPath, "stats_log")
}

// ---- Pulsar ----
func (p *ParamTable) initPulsarAddress() {
	url, err := p.Load("_PulsarAddress")
	if err != nil {
		panic(err)
	}
	p.PulsarAddress = url
}

func (p *ParamTable) initRocksmqPath() {
	path, err := p.Load("_RocksmqPath")
	if err != nil {
		panic(err)
	}
	p.RocksmqPath = path
}

func (p *ParamTable) initClusterMsgChannelPrefix() {
	name, err := p.Load("msgChannel.chanNamePrefix.cluster")
	if err != nil {
		panic(err)
	}
	p.ClusterChannelPrefix = name
}

func (p *ParamTable) initSegmentStatisticsChannelName() {
	config, err := p.Load("msgChannel.chanNamePrefix.dataCoordStatistic")
	if err != nil {
		panic(err)
	}
	s := []string{p.ClusterChannelPrefix, config}
	p.SegmentStatisticsChannelName = strings.Join(s, "-")
}

func (p *ParamTable) initTimeTickChannelName() {
	config, err := p.Load("msgChannel.chanNamePrefix.dataCoordTimeTick")
	if err != nil {
		panic(err)
	}
	s := []string{p.ClusterChannelPrefix, config}
	p.TimeTickChannelName = strings.Join(s, "-")
}

// - msg channel subname -
func (p *ParamTable) initMsgChannelSubName() {
	config, err := p.Load("msgChannel.subNamePrefix.dataNodeSubNamePrefix")
	if err != nil {
		panic(err)
	}
	s := []string{p.ClusterChannelPrefix, config, strconv.FormatInt(p.NodeID, 10)}
	p.MsgChannelSubName = strings.Join(s, "-")
}

// --- ETCD ---
func (p *ParamTable) initEtcdEndpoints() {
	endpoints, err := p.Load("_EtcdEndpoints")
	if err != nil {
		panic(err)
	}
	p.EtcdEndpoints = strings.Split(endpoints, ",")
}

func (p *ParamTable) initMetaRootPath() {
	rootPath, err := p.Load("etcd.rootPath")
	if err != nil {
		panic(err)
	}
	subPath, err := p.Load("etcd.metaSubPath")
	if err != nil {
		panic(err)
	}
	p.MetaRootPath = path.Join(rootPath, subPath)
}

// --- MinIO ---
func (p *ParamTable) initMinioAddress() {
	endpoint, err := p.Load("_MinioAddress")
	if err != nil {
		panic(err)
	}
	p.MinioAddress = endpoint
}

func (p *ParamTable) initMinioAccessKeyID() {
	keyID, err := p.Load("minio.accessKeyID")
	if err != nil {
		panic(err)
	}
	p.MinioAccessKeyID = keyID
}

func (p *ParamTable) initMinioSecretAccessKey() {
	key, err := p.Load("minio.secretAccessKey")
	if err != nil {
		panic(err)
	}
	p.MinioSecretAccessKey = key
}

func (p *ParamTable) initMinioUseSSL() {
	usessl, err := p.Load("minio.useSSL")
	if err != nil {
		panic(err)
	}
	p.MinioUseSSL, _ = strconv.ParseBool(usessl)
}

func (p *ParamTable) initMinioBucketName() {
	bucketName, err := p.Load("minio.bucketName")
	if err != nil {
		panic(err)
	}
	p.MinioBucketName = bucketName
}

func (p *ParamTable) initRoleName() {
	p.RoleName = "datanode"
}