[DEBUG] [07/29/2026 01:14:15.396] [main] [EventStream(pekko://test)] logger log1-TestEventListener started
01:14:15,397 AM [test-pekko.actor.default-dispatcher-6] [INFO] Slf4jLogger - Slf4jLogger started
[DEBUG] [07/29/2026 01:14:15.397] [main] [EventStream(pekko://test)] logger log2-Slf4jLogger started
[DEBUG] [07/29/2026 01:14:15.397] [main] [EventStream(pekko://test)] Default Loggers started
[INFO] [07/29/2026 01:14:15.409] [main] [ArteryTransport(pekko://test)] Remoting started with transport [Artery tcp]; listening on address [pekko://test@10.30.170.17:17355] with UID [-438683763104622768]
[INFO] [07/29/2026 01:14:15.410] [main] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.17:17355] - Starting up, Pekko version [1.4.0] ...
01:14:15,414 AM [test-pekko.actor.default-dispatcher-7] [INFO] ArteryTransport - Remoting started with transport [Artery tcp]; listening on address [pekko://test@10.30.170.17:17355] with UID [-438683763104622768]
01:14:15,414 AM [test-pekko.actor.default-dispatcher-7] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.17:17355] - Starting up, Pekko version [1.4.0] ...
[INFO] [07/29/2026 01:14:15.414] [main] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.17:17355] - Registered cluster JMX MBean [pekko:type=Cluster]
[INFO] [07/29/2026 01:14:15.414] [main] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.17:17355] - Started up successfully
01:14:15,415 AM [test-pekko.actor.default-dispatcher-7] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.17:17355] - Registered cluster JMX MBean [pekko:type=Cluster]
01:14:15,415 AM [test-pekko.actor.default-dispatcher-7] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.17:17355] - Started up successfully
[INFO] [07/29/2026 01:14:15.416] [test-pekko.actor.internal-dispatcher-4] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.17:17355] - No downing-provider-class configured, manual cluster downing required, see https://pekko.apache.org/docs/pekko/current/typed/cluster.html#downing
[INFO] [07/29/2026 01:14:15.416] [test-pekko.actor.internal-dispatcher-4] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.17:17355] - No seed-nodes configured, manual cluster join required, see https://pekko.apache.org/docs/pekko/current/typed/cluster.html#joining
01:14:15,418 AM [test-pekko.actor.default-dispatcher-7] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.17:17355] - No downing-provider-class configured, manual cluster downing required, see https://pekko.apache.org/docs/pekko/current/typed/cluster.html#downing
01:14:15,418 AM [test-pekko.actor.default-dispatcher-7] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.17:17355] - No seed-nodes configured, manual cluster join required, see https://pekko.apache.org/docs/pekko/current/typed/cluster.html#joining
01:14:15,425 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,425 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,425 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): In requestVote: RequestVote{term=1, candidateId=test, lastLogIndex=10000, lastLogTerm=999} - currentTerm: 1, votedFor: test, lastIndex: 1, lastTerm: 1
01:14:15,425 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply{term=1, voteGranted=true}
01:14:15,425 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior549#-764067953]
01:14:15,436 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader550#62553106]
01:14:15,436 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender551#-460428673]
01:14:15,438 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,439 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,439 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): handleAppendEntries: AppendEntries{term=2, leaderId=leader-1, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=2, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[SimpleReplicatedLogEntry [index=0, term=2, payload=zero]]}
01:14:15,439 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior552#-526578667]
01:14:15,450 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader553#-416945516]
01:14:15,450 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender554#-1715269173]
01:14:15,453 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,454 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,454 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): In requestVote: RequestVote{term=1, candidateId=test, lastLogIndex=1999, lastLogTerm=1} - currentTerm: 1, votedFor: test, lastIndex: 2000, lastTerm: 1
01:14:15,454 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply{term=1, voteGranted=false}
01:14:15,454 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior555#519201561]
01:14:15,465 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader556#-1277980958]
01:14:15,465 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender557#34214791]
01:14:15,469 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,469 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,469 AM [main] [INFO] AbstractLeader - isolated-leader (IsolatedLeader): Term 100 in "AppendEntries{term=100, leaderId=leader-1, prevLogIndex=0, prevLogTerm=0, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}" message is greater than leader's term 1 - switching to Follower
01:14:15,469 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100
01:14:15,469 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,469 AM [main] [INFO] AbstractLeader - isolated-leader (IsolatedLeader): Term 100 in "AppendEntriesReply{term=100, success=false, followerId=follower-1, logLastIndex=100, logLastTerm=100, forceInstallSnapshot=false, needsLeaderAddress=false, payloadVersion=0, raftVersion=5, recipientRaftVersion=5}" message is greater than leader's term 1 - switching to Follower
01:14:15,469 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100
01:14:15,469 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,469 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): Found higher term in RequestVote rpc, verifying whether it's safe to update term.
01:14:15,470 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): Cluster state: []
01:14:15,470 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): Candidate in requestVote:RequestVote{term=100, candidateId=candidate-1, lastLogIndex=10, lastLogTerm=100} with higher term appears reachable, updating term.
01:14:15,470 AM [main] [INFO] AbstractLeader - isolated-leader (IsolatedLeader): Term 100 in "RequestVote{term=100, candidateId=candidate-1, lastLogIndex=10, lastLogTerm=100}" message is greater than leader's term 1 - switching to Follower
01:14:15,470 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100
01:14:15,470 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,470 AM [main] [INFO] AbstractLeader - isolated-leader (IsolatedLeader): Term 100 in "RequestVoteReply{term=100, voteGranted=false}" message is greater than leader's term 1 - switching to Follower
01:14:15,470 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100
01:14:15,470 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior558#-958824526]
01:14:15,481 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader559#-1668014341]
01:14:15,481 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender560#179795469]
01:14:15,484 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,484 AM [main] [DEBUG] AbstractLeader - test (IsolatedLeader): Election: Leader has following peers: []
01:14:15,484 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 0
01:14:15,484 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 0
01:14:15,484 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,484 AM [main] [DEBUG] SnapshotManager - test: fakeSnapshot purging log to 0 for term 1
01:14:15,484 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 2
01:14:15,484 AM [main] [DEBUG] SnapshotManager - test: fakeSnapshot purging log to 1 for term 1
01:14:15,484 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 2
01:14:15,484 AM [main] [DEBUG] SnapshotManager - test: fakeSnapshot purging log to 1 for term 1
01:14:15,484 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior561#-291580392]
01:14:15,495 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader562#109660039]
01:14:15,495 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender563#1165902999]
01:14:15,499 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,499 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,499 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader): Cannot append entries because sender's term 100 is less than 1000
01:14:15,499 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior564#-916389899]
01:14:15,510 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader565#-1328544433]
01:14:15,510 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender566#939392754]
01:14:15,514 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,514 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: []
01:14:15,514 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): In requestVote: RequestVote{term=999, candidateId=test, lastLogIndex=10000, lastLogTerm=999} - currentTerm: 1000, votedFor: null, lastIndex: 1, lastTerm: 1
01:14:15,514 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply{term=1000, voteGranted=false}
01:14:15,514 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior567#1081844817]
01:14:15,525 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader568#1401874294]
01:14:15,525 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender569#1431129816]
01:14:15,529 AM [main] [INFO] IsolatedLeaderTest - Starting testLeaderSchedulesHeartbeatsEvenWhenNoFollowersRespondToInitialAppendEntries
01:14:15,530 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:15,531 AM [main] [DEBUG] AbstractLeader - leader573 (IsolatedLeader): Election: Leader has following peers: [follower575, follower574]
01:14:15,531 AM [main] [DEBUG] AbstractLeader - leader573 (IsolatedLeader): Checking sendAppendEntries for follower follower575: active: false, followerNextIndex: -1, leaderLastIndex: 4, leaderSnapShotIndex: -1
01:14:15,531 AM [main] [DEBUG] AbstractLeader - leader573 (IsolatedLeader): Checking sendAppendEntries for follower follower574: active: false, followerNextIndex: -1, leaderLastIndex: 4, leaderSnapShotIndex: -1
01:14:16,539 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior570#1964985483]
01:14:16,549 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader571#-392868766]
01:14:16,549 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender572#1471245232]
01:14:16,550 AM [main] [INFO] TestActorFactory - Killing actor TestActor[pekko://test/user/leader573]
01:14:16,550 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/follower574#-155671242]
01:14:16,550 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/follower575#1325280478]
01:14:16,553 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:16,553 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-2, follower-1]
01:14:16,554 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.554] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader577#774651178]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.554] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader577#774651178] to Actor[pekko://test/user/$b] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,554 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader577#774651178] to Actor[pekko://test/user/$b] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,554 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.554] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader577#774651178]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.554] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader577#774651178] to Actor[pekko://test/user/$a] was not delivered. [2] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,554 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader577#774651178] to Actor[pekko://test/user/$a] was not delivered. [2] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,554 AM [main] [INFO] AbstractLeader - isolated-leader (IsolatedLeader): Term 2 in "AppendEntriesReply{term=2, success=true, followerId=follower-1, logLastIndex=2, logLastTerm=2, forceInstallSnapshot=false, needsLeaderAddress=false, payloadVersion=0, raftVersion=5, recipientRaftVersion=5}" message is greater than leader's term 1 - switching to Follower
01:14:16,554 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 2
01:14:16,555 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior576#1581170008]
01:14:16,565 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader577#774651178]
01:14:16,566 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender578#231204154]
01:14:16,571 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:16,571 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-2, follower-1]
01:14:16,571 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
01:14:16,571 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.571] [test-pekko.actor.default-dispatcher-11] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader580#-1107523170]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
01:14:16,571 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$b] was not delivered. [3] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.571] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$b] was not delivered. [3] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
[WARN] [07/29/2026 01:14:16.571] [test-pekko.actor.default-dispatcher-11] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader580#-1107523170]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.571] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$a] was not delivered. [4] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,572 AM [test-pekko.actor.default-dispatcher-11] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$a] was not delivered. [4] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,572 AM [main] [INFO] AbstractLeader - isolated-leader (IsolatedLeader): handleAppendEntriesReply: follower follower-1 last log term 0 for index 0 conflicts with the leader's 1 - set the follower's next index to -1
01:14:16,572 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1
01:14:16,572 AM [main] [INFO] IsolatedLeader - isolated-leader: IsolatedLeader isolated-leader switching from IsolatedLeader to Leader
[WARN] [07/29/2026 01:14:16.572] [test-pekko.actor.default-dispatcher-12] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader580#-1107523170]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}
01:14:16,572 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Election: Leader has following peers: [follower-2, follower-1]
01:14:16,572 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.572] [test-pekko.actor.default-dispatcher-11] [pekko://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$a] was not delivered. [5] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
[WARN] [07/29/2026 01:14:16.572] [test-pekko.actor.default-dispatcher-11] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader580#-1107523170]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
01:14:16,572 AM [test-pekko.actor.default-dispatcher-12] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$a] was not delivered. [5] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,573 AM [test-pekko.actor.default-dispatcher-12] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$b] was not delivered. [6] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.573] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$b] was not delivered. [6] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,573 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.573] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader580#-1107523170]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}
01:14:16,573 AM [test-pekko.actor.default-dispatcher-12] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$a] was not delivered. [7] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.573] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$a] was not delivered. [7] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,573 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Leader, election term: 1
01:14:16,573 AM [main] [INFO] AbstractLeader - isolated-leader (Leader): handleAppendEntriesReply: follower follower-2 last log term 0 for index 0 conflicts with the leader's 1 - set the follower's next index to -1
01:14:16,573 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.573] [test-pekko.actor.default-dispatcher-12] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader580#-1107523170]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}
01:14:16,573 AM [test-pekko.actor.default-dispatcher-12] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$b] was not delivered. [8] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.573] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1107523170] to Actor[pekko://test/user/$b] was not delivered. [8] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,574 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior579#-158429678]
01:14:16,584 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader580#-1107523170]
01:14:16,585 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender581#-1039519642]
01:14:16,589 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1
01:14:16,589 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-4, follower-3, follower-2, follower-1]
01:14:16,589 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-4: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.589] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$d] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.589] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$d] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader583#1086935541] to Actor[pekko://test/user/$d] was not delivered. [9] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$d] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,589 AM [test-pekko.actor.default-dispatcher-12] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader583#1086935541] to Actor[pekko://test/user/$d] was not delivered. [9] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$d] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,589 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-3: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.589] [test-pekko.actor.default-dispatcher-12] [pekko://test/user/$c] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
[INFO] [pekkoDeadLetter][07/29/2026 01:14:16.590] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$c] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader583#1086935541] to Actor[pekko://test/user/$c] was not delivered. [10] dead letters encountered, no more dead letters will be logged in next [5.000 min]. If this is not an expected behavior then Actor[pekko://test/user/$c] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,590 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef -  pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader583#1086935541] to Actor[pekko://test/user/$c] was not delivered. [10] dead letters encountered, no more dead letters will be logged in next [5.000 min]. If this is not an expected behavior then Actor[pekko://test/user/$c] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'.
01:14:16,590 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.590] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
01:14:16,590 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.590] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
01:14:16,590 AM [main] [INFO] AbstractLeader - isolated-leader (IsolatedLeader): handleAppendEntriesReply: follower follower-1 last log term 0 for index 0 conflicts with the leader's 1 - set the follower's next index to -1
01:14:16,590 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.590] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}
01:14:16,590 AM [main] [INFO] AbstractLeader - isolated-leader (IsolatedLeader): handleAppendEntriesReply: follower follower-2 last log term 0 for index 0 conflicts with the leader's 1 - set the follower's next index to -1
01:14:16,590 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.591] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}
01:14:16,591 AM [main] [INFO] IsolatedLeader - isolated-leader: IsolatedLeader isolated-leader switching from IsolatedLeader to Leader
01:14:16,591 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Election: Leader has following peers: [follower-4, follower-3, follower-2, follower-1]
01:14:16,591 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-4: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.591] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$d] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
01:14:16,591 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-3: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.591] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$c] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]}
01:14:16,591 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.591] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}
01:14:16,591 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.592] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}
01:14:16,592 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Leader, election term: 1
01:14:16,592 AM [main] [INFO] AbstractLeader - isolated-leader (Leader): handleAppendEntriesReply: follower follower-3 last log term 0 for index 0 conflicts with the leader's 1 - set the follower's next index to -1
01:14:16,592 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-3: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1
[WARN] [07/29/2026 01:14:16.592] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$c] received dead letter from Actor[pekko://test/user/leader583#1086935541]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]}
01:14:16,592 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior582#-1476209268]
01:14:16,603 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader583#1086935541]
01:14:16,603 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender584#-758491532]
[INFO] [07/29/2026 01:14:16.605] [main] [CoordinatedShutdown(pekko://test)] Running CoordinatedShutdown with reason [ActorSystemTerminateReason]
01:14:16,605 AM [test-pekko.actor.default-dispatcher-6] [INFO] CoordinatedShutdown - Running CoordinatedShutdown with reason [ActorSystemTerminateReason]
[WARN] [07/29/2026 01:14:16.606] [test-pekko.actor.default-dispatcher-6] [pekko://test/system/cluster/core/daemon] unhandled message from Actor[pekko://test/deadLetters]: Leave(pekko://test@10.30.170.17:17355)
[INFO] [07/29/2026 01:14:16.607] [test-pekko.actor.internal-dispatcher-4] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.17:17355] - Exiting completed
01:14:16,607 AM [test-pekko.actor.default-dispatcher-6] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.17:17355] - Exiting completed
01:14:16,607 AM [test-pekko.actor.default-dispatcher-6] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.17:17355] - Shutting down...
[INFO] [07/29/2026 01:14:16.607] [test-pekko.actor.internal-dispatcher-4] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.17:17355] - Shutting down...
[INFO] [07/29/2026 01:14:16.607] [test-pekko.actor.internal-dispatcher-4] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.17:17355] - Successfully shut down
01:14:16,608 AM [test-pekko.actor.default-dispatcher-7] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.17:17355] - Successfully shut down
[INFO] [07/29/2026 01:14:16.609] [test-pekko.remote.default-remote-dispatcher-8] [pekko://test@10.30.170.17:17355/system/remoting-terminator] Shutting down remote daemon.
[INFO] [07/29/2026 01:14:16.610] [test-pekko.remote.default-remote-dispatcher-8] [pekko://test@10.30.170.17:17355/system/remoting-terminator] Remote daemon shut down; proceeding with flushing remote transports.
01:14:16,610 AM [test-pekko.actor.default-dispatcher-11] [INFO] RemoteActorRefProvider$RemotingTerminator - Shutting down remote daemon.
01:14:16,610 AM [test-pekko.actor.default-dispatcher-11] [INFO] RemoteActorRefProvider$RemotingTerminator - Remote daemon shut down; proceeding with flushing remote transports.
01:14:16,613 AM [test-pekko.actor.default-dispatcher-7] [INFO] RemoteActorRefProvider$RemotingTerminator - Remoting shut down.
[INFO] [07/29/2026 01:14:16.613] [test-pekko.remote.default-remote-dispatcher-8] [pekko://test@10.30.170.17:17355/system/remoting-terminator] Remoting shut down.
[DEBUG] [07/29/2026 01:14:16.613] [test-pekko.actor.internal-dispatcher-3] [EventStream] shutting down: StandardOutLogger