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Merge pull request #1432 from unihorn/187

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raft: use raft-specific rand.Rand instead of global one
This commit is contained in:
Yicheng Qin 2014-10-27 14:15:58 -07:00
commit 60cb18b6c2
1 changed files with 3 additions and 2 deletions
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5
raft/raft.go
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@ -115,6 +115,7 @@ type raft struct {
elapsed int // number of ticks since the last msg
heartbeatTimeout int
electionTimeout int
rand *rand.Rand
tick func()
step stepFunc
}
@ -123,7 +124,6 @@ func newRaft(id uint64, peers []uint64, election, heartbeat int) *raft {
if id == None {
panic("cannot use none id")
}
rand.Seed(int64(id))
r := &raft{
id: id,
lead: None,
@ -132,6 +132,7 @@ func newRaft(id uint64, peers []uint64, election, heartbeat int) *raft {
electionTimeout: election,
heartbeatTimeout: heartbeat,
}
r.rand = rand.New(rand.NewSource(int64(id)))
for _, p := range peers {
r.prs[p] = &progress{}
}
@ -575,5 +576,5 @@ func (r *raft) isElectionTimeout() bool {
if d < 0 {
return false
}
return d > rand.Int()%r.electionTimeout
return d > r.rand.Int()%r.electionTimeout
}