# Joint replacement: add node 4 and remove the current leader (node 1) in one ConfChangeV2. The
# cluster passes through the joint config {2,3,4}|{1,2,3} and leaves to {2,3,4}; node 1, no longer a
# voter, steps down on apply, after which {2,3,4} elect a new leader.
add-nodes 3 voters=(1,2,3)
----
n1: created voters={1,2,3} term=0 commit=0 last=0
n2: created voters={1,2,3} term=0 commit=0 last=0
n3: created voters={1,2,3} term=0 commit=0 last=0

campaign 1
----
n1 candidate term=1
RequestVote term=1 last=0/0 prevote=false
RequestVote term=1 last=0/0 prevote=false

stabilize
----
> n2 recv RequestVote term=1 last=0/0 prevote=false
> n3 recv RequestVote term=1 last=0/0 prevote=false
> n2 ready
  VoteResponse term=1 prevote=false reject=false
> n3 ready
  VoteResponse term=1 prevote=false reject=false
> n1 recv VoteResponse term=1 prevote=false reject=false
> n1 recv VoteResponse term=1 prevote=false reject=false
> n1 ready
  Heartbeat term=1 commit=0
  Heartbeat term=1 commit=0
  AppendEntries term=1 prev=0/0 commit=0 entries=[1/1 empty]
  AppendEntries term=1 prev=0/0 commit=0 entries=[1/1 empty]
  n1 leader-changed term=1 lead=1
> n2 recv Heartbeat term=1 commit=0
> n3 recv Heartbeat term=1 commit=0
> n2 recv AppendEntries term=1 prev=0/0 commit=0 entries=[1/1 empty]
> n3 recv AppendEntries term=1 prev=0/0 commit=0 entries=[1/1 empty]
> n2 ready
  HeartbeatResponse term=1
  AppendResponse term=1 match=1
  n2 leader-changed term=1 lead=1
> n3 ready
  HeartbeatResponse term=1
  AppendResponse term=1 match=1
  n3 leader-changed term=1 lead=1
> n1 recv HeartbeatResponse term=1
> n1 recv AppendResponse term=1 match=1
> n1 recv HeartbeatResponse term=1
> n1 recv AppendResponse term=1 match=1
> n1 ready
  AppendEntries term=1 prev=0/0 commit=0 entries=[1/1 empty]
  AppendEntries term=1 prev=1/1 commit=1 entries=[]
  AppendEntries term=1 prev=0/0 commit=1 entries=[1/1 empty]
  AppendEntries term=1 prev=1/1 commit=1 entries=[]
> n2 recv AppendEntries term=1 prev=0/0 commit=0 entries=[1/1 empty]
> n2 recv AppendEntries term=1 prev=1/1 commit=1 entries=[]
> n3 recv AppendEntries term=1 prev=0/0 commit=1 entries=[1/1 empty]
> n3 recv AppendEntries term=1 prev=1/1 commit=1 entries=[]
> n2 ready
  AppendResponse term=1 match=1
  AppendResponse term=1 match=1
> n3 ready
  AppendResponse term=1 match=1
  AppendResponse term=1 match=1
> n1 recv AppendResponse term=1 match=1
> n1 recv AppendResponse term=1 match=1
> n1 recv AppendResponse term=1 match=1
> n1 recv AppendResponse term=1 match=1

propose-conf-change-v2 1 add=4 remove=1
----
n1 proposed conf-change-v2 (2 change(s)) at index 2
AppendEntries term=1 prev=1/1 commit=1 entries=[1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000]
AppendEntries term=1 prev=1/1 commit=1 entries=[1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000]

stabilize
----
> n2 recv AppendEntries term=1 prev=1/1 commit=1 entries=[1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000]
> n3 recv AppendEntries term=1 prev=1/1 commit=1 entries=[1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000]
> n2 ready
  AppendResponse term=1 match=2
> n3 ready
  AppendResponse term=1 match=2
> n1 recv AppendResponse term=1 match=2
> n1 recv AppendResponse term=1 match=2
> n1 ready
  AppendEntries term=1 prev=1/2 commit=2 entries=[]
  AppendEntries term=1 prev=1/2 commit=2 entries=[]
  n1 conf-changed index=2 voters={2,3,4}|{1,2,3}(joint)
> n2 recv AppendEntries term=1 prev=1/2 commit=2 entries=[]
> n3 recv AppendEntries term=1 prev=1/2 commit=2 entries=[]
> n2 ready
  AppendResponse term=1 match=2
  n2 conf-changed index=2 voters={2,3,4}|{1,2,3}(joint)
> n3 ready
  AppendResponse term=1 match=2
  n3 conf-changed index=2 voters={2,3,4}|{1,2,3}(joint)
> n1 recv AppendResponse term=1 match=2
> n1 recv AppendResponse term=1 match=2

tick-heartbeat 1
----
Heartbeat term=1 commit=2
Heartbeat term=1 commit=2
Heartbeat term=1 commit=0

stabilize
----
> n2 recv Heartbeat term=1 commit=2
> n3 recv Heartbeat term=1 commit=2
> n4 recv Heartbeat term=1 commit=0
> n2 ready
  HeartbeatResponse term=1
> n3 ready
  HeartbeatResponse term=1
> n4 ready
  HeartbeatResponse term=1
  n4 leader-changed term=1 lead=1
> n1 recv HeartbeatResponse term=1
> n1 recv HeartbeatResponse term=1
> n1 recv HeartbeatResponse term=1
> n1 ready
  AppendEntries term=1 prev=1/2 commit=2 entries=[1/3 conf-change]
  AppendEntries term=1 prev=1/3 commit=2 entries=[]
  AppendEntries term=1 prev=1/2 commit=2 entries=[1/3 conf-change]
  AppendEntries term=1 prev=1/3 commit=2 entries=[]
  AppendEntries term=1 prev=1/1 commit=2 entries=[1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000, 1/3 conf-change]
> n2 recv AppendEntries term=1 prev=1/2 commit=2 entries=[1/3 conf-change]
> n2 recv AppendEntries term=1 prev=1/3 commit=2 entries=[]
> n3 recv AppendEntries term=1 prev=1/2 commit=2 entries=[1/3 conf-change]
> n3 recv AppendEntries term=1 prev=1/3 commit=2 entries=[]
> n4 recv AppendEntries term=1 prev=1/1 commit=2 entries=[1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000, 1/3 conf-change]
> n2 ready
  AppendResponse term=1 match=2
  AppendResponse term=1 match=3
> n3 ready
  AppendResponse term=1 match=2
  AppendResponse term=1 match=3
> n4 ready
  AppendResponse term=1 reject hint=0/0
> n1 recv AppendResponse term=1 match=2
> n1 recv AppendResponse term=1 match=3
> n1 recv AppendResponse term=1 match=2
> n1 recv AppendResponse term=1 match=3
> n1 recv AppendResponse term=1 reject hint=0/0
> n1 ready
  AppendEntries term=1 prev=1/3 commit=2 entries=[]
  AppendEntries term=1 prev=1/3 commit=3 entries=[]
  n1 conf-changed index=3 voters={2,3,4}
  n1 leader-changed term=1 lead=none
> n2 recv AppendEntries term=1 prev=1/3 commit=2 entries=[]
> n3 recv AppendEntries term=1 prev=1/3 commit=3 entries=[]
> n2 ready
  AppendResponse term=1 match=3
> n3 ready
  AppendResponse term=1 match=3
  n3 conf-changed index=3 voters={2,3,4}
> n1 recv AppendResponse term=1 match=3
> n1 recv AppendResponse term=1 match=3

campaign 2
----
n2 candidate term=2
RequestVote term=2 last=1/3 prevote=false
RequestVote term=2 last=1/3 prevote=false
RequestVote term=2 last=1/3 prevote=false
n2 leader-changed term=2 lead=none

stabilize
----
> n1 recv RequestVote term=2 last=1/3 prevote=false
> n3 recv RequestVote term=2 last=1/3 prevote=false
> n4 recv RequestVote term=2 last=1/3 prevote=false
> n1 ready
  VoteResponse term=2 prevote=false reject=false
> n3 ready
  VoteResponse term=2 prevote=false reject=false
  n3 leader-changed term=2 lead=none
> n4 ready
  VoteResponse term=2 prevote=false reject=false
  n4 leader-changed term=2 lead=none
> n2 recv VoteResponse term=2 prevote=false reject=false
> n2 recv VoteResponse term=2 prevote=false reject=false
> n2 recv VoteResponse term=2 prevote=false reject=false
> n2 ready
  Heartbeat term=2 commit=0
  Heartbeat term=2 commit=0
  Heartbeat term=2 commit=0
  AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
  AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
  AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
  n2 leader-changed term=2 lead=2
> n1 recv Heartbeat term=2 commit=0
> n3 recv Heartbeat term=2 commit=0
> n4 recv Heartbeat term=2 commit=0
> n1 recv AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
> n3 recv AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
> n4 recv AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
> n1 ready
  HeartbeatResponse term=2
  AppendResponse term=2 match=4
  n1 leader-changed term=2 lead=2
> n3 ready
  HeartbeatResponse term=2
  AppendResponse term=2 match=4
  n3 leader-changed term=2 lead=2
> n4 ready
  HeartbeatResponse term=2
  AppendResponse term=2 reject hint=0/0
  n4 leader-changed term=2 lead=2
> n2 recv HeartbeatResponse term=2
> n2 recv AppendResponse term=2 match=4
> n2 recv HeartbeatResponse term=2
> n2 recv AppendResponse term=2 match=4
> n2 recv HeartbeatResponse term=2
> n2 recv AppendResponse term=2 reject hint=0/0
> n2 ready
  AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
  AppendEntries term=2 prev=2/4 commit=2 entries=[]
  AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
  AppendEntries term=2 prev=2/4 commit=4 entries=[]
  AppendEntries term=2 prev=1/3 commit=4 entries=[2/4 empty]
  AppendEntries term=2 prev=0/0 commit=4 entries=[1/1 empty, 1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000, 1/3 conf-change, 2/4 empty]
  n2 conf-changed index=3 voters={2,3,4}
> n1 recv AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
> n1 recv AppendEntries term=2 prev=2/4 commit=2 entries=[]
> n3 recv AppendEntries term=2 prev=1/3 commit=2 entries=[2/4 empty]
> n3 recv AppendEntries term=2 prev=2/4 commit=4 entries=[]
> n4 recv AppendEntries term=2 prev=1/3 commit=4 entries=[2/4 empty]
> n4 recv AppendEntries term=2 prev=0/0 commit=4 entries=[1/1 empty, 1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000, 1/3 conf-change, 2/4 empty]
> n1 ready
  AppendResponse term=2 match=4
  AppendResponse term=2 match=4
> n3 ready
  AppendResponse term=2 match=4
  AppendResponse term=2 match=4
> n4 ready
  AppendResponse term=2 reject hint=0/0
  AppendResponse term=2 match=4
  n4 conf-changed index=2 voters={2,3,4}|{1,2,3}(joint)
  n4 conf-changed index=3 voters={2,3,4}
> n2 recv AppendResponse term=2 match=4
> n2 recv AppendResponse term=2 match=4
> n2 recv AppendResponse term=2 match=4
> n2 recv AppendResponse term=2 match=4
> n2 recv AppendResponse term=2 reject hint=0/0
> n2 recv AppendResponse term=2 match=4
> n2 ready
  AppendEntries term=2 prev=0/0 commit=4 entries=[1/1 empty, 1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000, 1/3 conf-change, 2/4 empty]
  AppendEntries term=2 prev=2/4 commit=4 entries=[]
> n4 recv AppendEntries term=2 prev=0/0 commit=4 entries=[1/1 empty, 1/2 conf-change 0x120a12080400000000000000120c080112080100000000000000, 1/3 conf-change, 2/4 empty]
> n4 recv AppendEntries term=2 prev=2/4 commit=4 entries=[]
> n4 ready
  AppendResponse term=2 match=4
  AppendResponse term=2 match=4
> n2 recv AppendResponse term=2 match=4
> n2 recv AppendResponse term=2 match=4

raft-state
----
n1: follower term=2 lead=2
n2: leader term=2 lead=2
n3: follower term=2 lead=2
n4: follower term=2 lead=2

