1# Run a V2 membership change that adds a single voter but explicitly asks for the
2# use of joint consensus (with auto-leaving).
3
4# TODO(tbg): also verify that if the leader changes while in the joint state, the
5# new leader will auto-transition out of the joint state just the same.
6
7# Bootstrap n1.
8add-nodes 1 voters=(1) index=2
9----
10INFO 1 switched to configuration voters=(1)
11INFO 1 became follower at term 0
12INFO newRaft 1 [peers: [1], term: 0, commit: 2, applied: 2, lastindex: 2, lastterm: 1]
13
14campaign 1
15----
16INFO 1 is starting a new election at term 0
17INFO 1 became candidate at term 1
18INFO 1 received MsgVoteResp from 1 at term 1
19INFO 1 became leader at term 1
20
21propose-conf-change 1 transition=implicit
22v2
23----
24ok
25
26# Add n2.
27add-nodes 1
28----
29INFO 2 switched to configuration voters=()
30INFO 2 became follower at term 0
31INFO newRaft 2 [peers: [], term: 0, commit: 0, applied: 0, lastindex: 0, lastterm: 0]
32
33# n1 commits the conf change using itself as commit quorum, then starts catching up n2.
34# When that's done, it starts auto-transitioning out. Note that the snapshots propagating
35# the joint config have the AutoLeave flag set in their config.
36stabilize 1 2
37----
38> 1 handling Ready
39 Ready MustSync=true:
40 Lead:1 State:StateLeader
41 HardState Term:1 Vote:1 Commit:4
42 Entries:
43 1/3 EntryNormal ""
44 1/4 EntryConfChangeV2 v2
45 CommittedEntries:
46 1/3 EntryNormal ""
47 1/4 EntryConfChangeV2 v2
48 INFO 1 switched to configuration voters=(1 2)&&(1) autoleave
49 INFO initiating automatic transition out of joint configuration voters=(1 2)&&(1) autoleave
50> 1 handling Ready
51 Ready MustSync=true:
52 Entries:
53 1/5 EntryConfChangeV2
54 Messages:
55 1->2 MsgApp Term:1 Log:1/3 Commit:4 Entries:[1/4 EntryConfChangeV2 v2]
56> 2 receiving messages
57 1->2 MsgApp Term:1 Log:1/3 Commit:4 Entries:[1/4 EntryConfChangeV2 v2]
58 INFO 2 [term: 0] received a MsgApp message with higher term from 1 [term: 1]
59 INFO 2 became follower at term 1
60 DEBUG 2 [logterm: 0, index: 3] rejected MsgApp [logterm: 1, index: 3] from 1
61> 2 handling Ready
62 Ready MustSync=true:
63 Lead:1 State:StateFollower
64 HardState Term:1 Commit:0
65 Messages:
66 2->1 MsgAppResp Term:1 Log:0/3 Rejected (Hint: 0)
67> 1 receiving messages
68 2->1 MsgAppResp Term:1 Log:0/3 Rejected (Hint: 0)
69 DEBUG 1 received MsgAppResp(rejected, hint: (index 0, term 0)) from 2 for index 3
70 DEBUG 1 decreased progress of 2 to [StateProbe match=0 next=1]
71 DEBUG 1 [firstindex: 3, commit: 4] sent snapshot[index: 4, term: 1] to 2 [StateProbe match=0 next=1]
72 DEBUG 1 paused sending replication messages to 2 [StateSnapshot match=0 next=1 paused pendingSnap=4]
73> 1 handling Ready
74 Ready MustSync=false:
75 Messages:
76 1->2 MsgSnap Term:1 Log:0/0 Snapshot: Index:4 Term:1 ConfState:Voters:[1 2] VotersOutgoing:[1] Learners:[] LearnersNext:[] AutoLeave:true
77> 2 receiving messages
78 1->2 MsgSnap Term:1 Log:0/0 Snapshot: Index:4 Term:1 ConfState:Voters:[1 2] VotersOutgoing:[1] Learners:[] LearnersNext:[] AutoLeave:true
79 INFO log [committed=0, applied=0, unstable.offset=1, len(unstable.Entries)=0] starts to restore snapshot [index: 4, term: 1]
80 INFO 2 switched to configuration voters=(1 2)&&(1) autoleave
81 INFO 2 [commit: 4, lastindex: 4, lastterm: 1] restored snapshot [index: 4, term: 1]
82 INFO 2 [commit: 4] restored snapshot [index: 4, term: 1]
83> 2 handling Ready
84 Ready MustSync=false:
85 HardState Term:1 Commit:4
86 Snapshot Index:4 Term:1 ConfState:Voters:[1 2] VotersOutgoing:[1] Learners:[] LearnersNext:[] AutoLeave:true
87 Messages:
88 2->1 MsgAppResp Term:1 Log:0/4
89> 1 receiving messages
90 2->1 MsgAppResp Term:1 Log:0/4
91 DEBUG 1 recovered from needing snapshot, resumed sending replication messages to 2 [StateSnapshot match=4 next=5 paused pendingSnap=4]
92> 1 handling Ready
93 Ready MustSync=false:
94 Messages:
95 1->2 MsgApp Term:1 Log:1/4 Commit:4 Entries:[1/5 EntryConfChangeV2]
96> 2 receiving messages
97 1->2 MsgApp Term:1 Log:1/4 Commit:4 Entries:[1/5 EntryConfChangeV2]
98> 2 handling Ready
99 Ready MustSync=true:
100 Entries:
101 1/5 EntryConfChangeV2
102 Messages:
103 2->1 MsgAppResp Term:1 Log:0/5
104> 1 receiving messages
105 2->1 MsgAppResp Term:1 Log:0/5
106> 1 handling Ready
107 Ready MustSync=false:
108 HardState Term:1 Vote:1 Commit:5
109 CommittedEntries:
110 1/5 EntryConfChangeV2
111 Messages:
112 1->2 MsgApp Term:1 Log:1/5 Commit:5
113 INFO 1 switched to configuration voters=(1 2)
114> 2 receiving messages
115 1->2 MsgApp Term:1 Log:1/5 Commit:5
116> 2 handling Ready
117 Ready MustSync=false:
118 HardState Term:1 Commit:5
119 CommittedEntries:
120 1/5 EntryConfChangeV2
121 Messages:
122 2->1 MsgAppResp Term:1 Log:0/5
123 INFO 2 switched to configuration voters=(1 2)
124> 1 receiving messages
125 2->1 MsgAppResp Term:1 Log:0/5
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