Merge pull request #3184 from yichengq/fast-bootstrap
etcdserver: tick ElectionTicks before starting when bootstrap new clusterrelease-2.2
commit
f03f048232
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@ -210,6 +210,16 @@ func (r *raftNode) resumeSending() {
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p.Resume()
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}
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// advanceTicksForElection advances ticks to the node for fast election.
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// This reduces the time to wait for first leader election if bootstrapping the whole
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// cluster, while leaving at least 1 heartbeat for possible existing leader
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// to contact it.
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func advanceTicksForElection(n raft.Node, electionTicks int) {
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for i := 0; i < electionTicks-1; i++ {
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n.Tick()
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}
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}
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func startNode(cfg *ServerConfig, cl *cluster, ids []types.ID) (id types.ID, n raft.Node, s *raft.MemoryStorage, w *wal.WAL) {
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var err error
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member := cl.MemberByName(cfg.Name)
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@ -246,6 +256,7 @@ func startNode(cfg *ServerConfig, cl *cluster, ids []types.ID) (id types.ID, n r
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}
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n = raft.StartNode(c, peers)
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raftStatus = n.Status
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advanceTicksForElection(n, c.ElectionTick)
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return
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}
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@ -275,6 +286,7 @@ func restartNode(cfg *ServerConfig, snapshot *raftpb.Snapshot) (types.ID, *clust
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}
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n := raft.RestartNode(c)
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raftStatus = n.Status
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advanceTicksForElection(n, c.ElectionTick)
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return id, cl, n, s, w
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}
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