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63 lines
1007 B
63 lines
1007 B
package nodes
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import (
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"sync"
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"time"
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"github.com/syndtr/goleveldb/leveldb"
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)
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type State = uint8
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const (
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Follower State = iota + 1
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Candidate
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Leader
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)
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type Node struct {
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mu sync.Mutex
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// 当前节点id
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selfId string
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// 记录的leader(不能用votedfor：投票的leader可能没有收到多数票)
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leaderId string
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// 除当前节点外其他节点id
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nodes []string
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// 当前节点状态
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state State
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// 任期
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currTerm int
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// 简单的kv存储
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log []RaftLogEntry
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// leader用来标记新log, = log.len
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maxLogId int
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// 已提交的index
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commitIndex int
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// 最后应用（写到db）的index
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lastApplied int
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// 需要发送给每个节点的下一个索引
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nextIndex map[string]int
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// 已经发送给每个节点的最大索引
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matchIndex map[string]int
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// 存kv（模拟状态机）
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db *leveldb.DB
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// 持久化节点数据（currterm votedfor log）
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storage *RaftStorage
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votedFor string
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electionTimer *time.Timer
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// 通信方式
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transport Transport
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}
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