[DEBUG] [01/19/2026 01:11:32.313] [main] [EventStream(pekko://test)] logger log1-TestEventListener started 01:11:32,314 AM [test-pekko.actor.default-dispatcher-5] [INFO] Slf4jLogger - Slf4jLogger started [DEBUG] [01/19/2026 01:11:32.314] [main] [EventStream(pekko://test)] logger log2-Slf4jLogger started [DEBUG] [01/19/2026 01:11:32.314] [main] [EventStream(pekko://test)] Default Loggers started 01:11:32,326 AM [test-pekko.actor.default-dispatcher-6] [INFO] ArteryTransport - Remoting started with transport [Artery tcp]; listening on address [pekko://test@10.30.170.181:17355] with UID [-7432759354620161535] 01:11:32,326 AM [test-pekko.actor.default-dispatcher-6] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.181:17355] - Starting up, Pekko version [1.2.1] ... [INFO] [01/19/2026 01:11:32.324] [main] [ArteryTransport(pekko://test)] Remoting started with transport [Artery tcp]; listening on address [pekko://test@10.30.170.181:17355] with UID [-7432759354620161535] [INFO] [01/19/2026 01:11:32.325] [main] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.181:17355] - Starting up, Pekko version [1.2.1] ... 01:11:32,327 AM [test-pekko.actor.default-dispatcher-6] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.181:17355] - Registered cluster JMX MBean [pekko:type=Cluster] 01:11:32,327 AM [test-pekko.actor.default-dispatcher-6] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.181:17355] - Started up successfully [INFO] [01/19/2026 01:11:32.327] [main] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.181:17355] - Registered cluster JMX MBean [pekko:type=Cluster] [INFO] [01/19/2026 01:11:32.327] [main] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.181:17355] - Started up successfully [INFO] [01/19/2026 01:11:32.328] [test-pekko.actor.internal-dispatcher-2] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.181:17355] - No downing-provider-class configured, manual cluster downing required, see https://pekko.apache.org/docs/pekko/current/typed/cluster.html#downing [INFO] [01/19/2026 01:11:32.328] [test-pekko.actor.internal-dispatcher-2] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.181:17355] - No seed-nodes configured, manual cluster join required, see https://pekko.apache.org/docs/pekko/current/typed/cluster.html#joining 01:11:32,329 AM [test-pekko.actor.default-dispatcher-6] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.181:17355] - No downing-provider-class configured, manual cluster downing required, see https://pekko.apache.org/docs/pekko/current/typed/cluster.html#downing 01:11:32,329 AM [test-pekko.actor.default-dispatcher-6] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.181:17355] - No seed-nodes configured, manual cluster join required, see https://pekko.apache.org/docs/pekko/current/typed/cluster.html#joining 01:11:32,360 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,360 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,360 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 01:11:32,360 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply{term=1, voteGranted=true} 01:11:32,361 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior549#1969819494] 01:11:32,373 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader550#-78243991] 01:11:32,373 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender551#1618179978] 01:11:32,377 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,377 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,378 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]]} 01:11:32,378 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior552#1176198033] 01:11:32,411 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader553#1041007931] 01:11:32,411 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender554#-1883037862] 01:11:32,423 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,423 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,423 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 01:11:32,423 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply{term=1, voteGranted=false} 01:11:32,424 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior555#-241705734] 01:11:32,425 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader556#1866789978] 01:11:32,425 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender557#-219400402] 01:11:32,429 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,429 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,429 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 01:11:32,429 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100 01:11:32,430 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,430 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 01:11:32,430 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100 01:11:32,430 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,430 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): Found higher term in RequestVote rpc, verifying whether it's safe to update term. 01:11:32,430 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): Cluster state: [] 01:11:32,430 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. 01:11:32,430 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 01:11:32,430 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100 01:11:32,430 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,430 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 01:11:32,430 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100 01:11:32,430 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior558#2119544097] 01:11:32,431 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader559#-504440812] 01:11:32,431 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender560#-621037583] 01:11:32,435 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,435 AM [main] [DEBUG] AbstractLeader - test (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,435 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 0 01:11:32,435 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 0 01:11:32,435 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,435 AM [main] [DEBUG] SnapshotManager - test: fakeSnapshot purging log to 0 for term 1 01:11:32,435 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 2 01:11:32,435 AM [main] [DEBUG] SnapshotManager - test: fakeSnapshot purging log to 1 for term 1 01:11:32,435 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 2 01:11:32,435 AM [main] [DEBUG] SnapshotManager - test: fakeSnapshot purging log to 1 for term 1 01:11:32,435 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior561#-804916852] 01:11:32,436 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader562#1844590358] 01:11:32,436 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender563#-173560161] 01:11:32,439 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,439 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,439 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader): Cannot append entries because sender's term 100 is less than 1000 01:11:32,439 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior564#-1689889672] 01:11:32,440 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader565#842656129] 01:11:32,440 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender566#-2039442714] 01:11:32,442 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,442 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 01:11:32,442 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 01:11:32,442 AM [main] [DEBUG] RaftActorBehavior - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply{term=1000, voteGranted=false} 01:11:32,442 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior567#2069255488] 01:11:32,442 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader568#1841779247] 01:11:32,442 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender569#-1662360416] 01:11:32,444 AM [main] [INFO] IsolatedLeaderTest - Starting testLeaderSchedulesHeartbeatsEvenWhenNoFollowersRespondToInitialAppendEntries 01:11:32,445 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:32,445 AM [main] [DEBUG] AbstractLeader - leader573 (IsolatedLeader): Election: Leader has following peers: [follower575, follower574] 01:11:32,445 AM [main] [DEBUG] AbstractLeader - leader573 (IsolatedLeader): Checking sendAppendEntries for follower follower575: active: false, followerNextIndex: -1, leaderLastIndex: 4, leaderSnapShotIndex: -1 01:11:32,445 AM [main] [DEBUG] AbstractLeader - leader573 (IsolatedLeader): Checking sendAppendEntries for follower follower574: active: false, followerNextIndex: -1, leaderLastIndex: 4, leaderSnapShotIndex: -1 01:11:33,454 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior570#-977708273] 01:11:33,465 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader571#-177371174] 01:11:33,465 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender572#-836842020] 01:11:33,465 AM [main] [INFO] TestActorFactory - Killing actor TestActor[pekko://test/user/leader573] 01:11:33,466 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/follower574#1992877165] 01:11:33,466 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/follower575#-1344165994] 01:11:33,471 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:33,471 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-2, follower-1] 01:11:33,471 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,472 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,472 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 01:11:33,472 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 2 01:11:33,472 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior576#-927422924] 01:11:33,474 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader577#1906770736] 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'. [WARN] [01/19/2026 01:11:33.473] [test-pekko.actor.default-dispatcher-7] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader577#1906770736]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} 01:11:33,474 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader577#1906770736] [WARN] [01/19/2026 01:11:33.474] [test-pekko.actor.default-dispatcher-7] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader577#1906770736]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.472] [test-pekko.actor.default-dispatcher-5] [pekko://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader577#1906770736] to Actor[pekko://test/user/$b] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'. [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.474] [test-pekko.actor.default-dispatcher-5] [pekko://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader577#1906770736] 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'. 01:11:33,474 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender578#1145294836] 01:11:33,475 AM [test-pekko.actor.default-dispatcher-5] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader577#1906770736] 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'. 01:11:33,479 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:33,479 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-2, follower-1] 01:11:33,479 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,479 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,480 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 01:11:33,480 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. 01:11:33,480 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. 01:11:33,480 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [01/19/2026 01:11:33.480] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader580#-1110069231]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} [WARN] [01/19/2026 01:11:33.480] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader580#-1110069231]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} 01:11:33,480 AM [test-pekko.actor.default-dispatcher-5] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. 01:11:33,480 AM [main] [INFO] IsolatedLeader - isolated-leader: IsolatedLeader isolated-leader switching from IsolatedLeader to Leader [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.480] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] to Actor[pekko://test/user/$b] was not delivered. [3] dead letters encountered. If this is not an expected behavior then Actor[pekko://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'pekko.log-dead-letters' and 'pekko.log-dead-letters-during-shutdown'. [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.480] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. [WARN] [01/19/2026 01:11:33.480] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader580#-1110069231]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]} [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.480] [test-pekko.actor.default-dispatcher-5] [pekko://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. 01:11:33,480 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Election: Leader has following peers: [follower-2, follower-1] 01:11:33,480 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,480 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,480 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. 01:11:33,481 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Leader, election term: 1 01:11:33,481 AM [test-pekko.actor.default-dispatcher-5] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. [WARN] [01/19/2026 01:11:33.480] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader580#-1110069231]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.480] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. [WARN] [01/19/2026 01:11:33.481] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader580#-1110069231]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]} [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.481] [test-pekko.actor.default-dispatcher-5] [pekko://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. 01:11:33,481 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 01:11:33,481 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,481 AM [test-pekko.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. [WARN] [01/19/2026 01:11:33.481] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader580#-1110069231]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]} [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.481] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader580#-1110069231] 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'. 01:11:33,481 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior579#781586221] 01:11:33,482 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader580#-1110069231] 01:11:33,483 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender581#-176536881] 01:11:33,485 AM [main] [DEBUG] AbstractReplicatedLog - : Moving last applied index from -1 to 1 01:11:33,485 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-4, follower-3, follower-2, follower-1] 01:11:33,485 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-4: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,485 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-3: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,485 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,486 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 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,486 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 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,486 AM [main] [INFO] IsolatedLeader - isolated-leader: IsolatedLeader isolated-leader switching from IsolatedLeader to Leader 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Election: Leader has following peers: [follower-4, follower-3, follower-2, follower-1] 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-4: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-3: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 01:11:33,486 AM [test-pekko.actor.default-dispatcher-5] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader583#273225777] 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'. 01:11:33,486 AM [test-pekko.actor.default-dispatcher-5] [INFO] EmptyLocalActorRef - pekkoDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader583#273225777] 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'. 01:11:33,486 AM [main] [INFO] RaftActorBehavior - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Leader, election term: 1 01:11:33,486 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 01:11:33,486 AM [main] [DEBUG] AbstractLeader - isolated-leader (Leader): Checking sendAppendEntries for follower follower-3: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$d] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$c] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} 01:11:33,486 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/behavior582#262693824] [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-5] [pekko://test/user/$d] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader583#273225777] 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'. [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-13] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]} [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]} [INFO] [pekkoDeadLetter][01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-5] [pekko://test/user/$c] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[pekko://test/user/leader583#273225777] 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'. [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$d] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$c] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, entries==[]} [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$b] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]} [WARN] [01/19/2026 01:11:33.486] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$a] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]} [WARN] [01/19/2026 01:11:33.487] [test-pekko.actor.default-dispatcher-6] [pekko://test/user/$c] received dead letter from Actor[pekko://test/user/leader583#273225777]: AppendEntries{term=1, leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, entries==[]} 01:11:33,487 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/leader583#273225777] 01:11:33,487 AM [main] [INFO] TestActorFactory - Killing actor Actor[pekko://test/user/sender584#-863627072] 01:11:33,488 AM [test-pekko.actor.default-dispatcher-5] [INFO] CoordinatedShutdown - Running CoordinatedShutdown with reason [ActorSystemTerminateReason] [INFO] [01/19/2026 01:11:33.488] [main] [CoordinatedShutdown(pekko://test)] Running CoordinatedShutdown with reason [ActorSystemTerminateReason] [WARN] [01/19/2026 01:11:33.489] [test-pekko.actor.default-dispatcher-13] [pekko://test/system/cluster/core/daemon] unhandled message from Actor[pekko://test/deadLetters]: Leave(pekko://test@10.30.170.181:17355) 01:11:33,490 AM [test-pekko.actor.default-dispatcher-5] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.181:17355] - Exiting completed 01:11:33,490 AM [test-pekko.actor.default-dispatcher-5] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.181:17355] - Shutting down... 01:11:33,490 AM [test-pekko.actor.default-dispatcher-5] [INFO] Cluster - Cluster Node [pekko://test@10.30.170.181:17355] - Successfully shut down [INFO] [01/19/2026 01:11:33.489] [test-pekko.actor.internal-dispatcher-4] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.181:17355] - Exiting completed [INFO] [01/19/2026 01:11:33.489] [test-pekko.actor.internal-dispatcher-4] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.181:17355] - Shutting down... [INFO] [01/19/2026 01:11:33.490] [test-pekko.actor.internal-dispatcher-4] [Cluster(pekko://test)] Cluster Node [pekko://test@10.30.170.181:17355] - Successfully shut down [INFO] [01/19/2026 01:11:33.492] [test-pekko.remote.default-remote-dispatcher-8] [pekko://test@10.30.170.181:17355/system/remoting-terminator] Shutting down remote daemon. 01:11:33,492 AM [test-pekko.actor.default-dispatcher-5] [INFO] RemoteActorRefProvider$RemotingTerminator - Shutting down remote daemon. 01:11:33,492 AM [test-pekko.actor.default-dispatcher-7] [INFO] RemoteActorRefProvider$RemotingTerminator - Remote daemon shut down; proceeding with flushing remote transports. [INFO] [01/19/2026 01:11:33.492] [test-pekko.remote.default-remote-dispatcher-8] [pekko://test@10.30.170.181:17355/system/remoting-terminator] Remote daemon shut down; proceeding with flushing remote transports.