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Add automatic bootstrap and recovery

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This commit is contained in:
Ingo Oppermann
2023-05-02 15:49:46 +02:00
parent 75c11eb475
commit 4eb0258ba4
3 changed files with 91 additions and 20 deletions
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54
cluster/cluster.go
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@@ -941,26 +941,50 @@ func (c *cluster) startRaft(fsm raft.FSM, bootstrap, recover, inmem bool) error
cfg.LocalID = raft.ServerID(c.id)
cfg.Logger = NewLogger(c.logger, hclog.Debug).Named("raft")
if bootstrap {
hasState, err := raft.HasExistingState(logStore, stableStore, snapshots)
hasState, err := raft.HasExistingState(logStore, stableStore, snapshots)
if err != nil {
return err
}
if !hasState {
// Bootstrap cluster
configuration := raft.Configuration{
Servers: []raft.Server{
{
Suffrage: raft.Voter,
ID: raft.ServerID(c.id),
Address: transport.LocalAddr(),
},
},
}
if err := raft.BootstrapCluster(cfg, logStore, stableStore, snapshots, transport, configuration); err != nil {
return err
}
c.logger.Debug().Log("raft node bootstrapped")
} else {
// Recover cluster
fsm, err := NewStore()
if err != nil {
return err
}
if !hasState {
configuration := raft.Configuration{
Servers: []raft.Server{
{
Suffrage: raft.Voter,
ID: raft.ServerID(c.id),
Address: transport.LocalAddr(),
},
},
}
if err := raft.BootstrapCluster(cfg, logStore, stableStore, snapshots, transport, configuration); err != nil {
return err
}
configuration := raft.Configuration{
Servers: []raft.Server{
{
Suffrage: raft.Voter,
ID: raft.ServerID(c.id),
Address: transport.LocalAddr(),
},
},
}
if err := raft.RecoverCluster(cfg, fsm, logStore, stableStore, snapshots, transport, configuration); err != nil {
return err
}
c.logger.Debug().Log("raft node recoverd")
}
// Set up a channel for reliable leader notifications.