[DEBUG] [12/12/2025 00:48:04.892] [main] [EventStream(akka://test)] logger log1-TestEventListener started 12:48:04,892 AM [test-akka.actor.default-dispatcher-5] [INFO] Slf4jLogger - Slf4jLogger started [DEBUG] [12/12/2025 00:48:04.892] [main] [EventStream(akka://test)] logger log2-Slf4jLogger started [DEBUG] [12/12/2025 00:48:04.892] [main] [EventStream(akka://test)] Default Loggers started [INFO] [12/12/2025 00:48:04.903] [main] [ArteryTransport(akka://test)] Remoting started with transport [Artery tcp]; listening on address [akka://test@10.30.170.56:25520] with UID [6314487385264270098] [INFO] [12/12/2025 00:48:04.903] [main] [Cluster(akka://test)] Cluster Node [akka://test@10.30.170.56:25520] - Starting up, Akka version [2.6.21] ... 12:48:04,905 AM [test-akka.actor.default-dispatcher-6] [INFO] ArteryTransport - Remoting started with transport [Artery tcp]; listening on address [akka://test@10.30.170.56:25520] with UID [6314487385264270098] 12:48:04,905 AM [test-akka.actor.default-dispatcher-6] [INFO] Cluster - Cluster Node [akka://test@10.30.170.56:25520] - Starting up, Akka version [2.6.21] ... [INFO] [12/12/2025 00:48:04.907] [main] [Cluster(akka://test)] Cluster Node [akka://test@10.30.170.56:25520] - Registered cluster JMX MBean [akka:type=Cluster] [INFO] [12/12/2025 00:48:04.907] [main] [Cluster(akka://test)] Cluster Node [akka://test@10.30.170.56:25520] - Started up successfully 12:48:04,907 AM [test-akka.actor.default-dispatcher-5] [INFO] Cluster - Cluster Node [akka://test@10.30.170.56:25520] - Registered cluster JMX MBean [akka:type=Cluster] 12:48:04,907 AM [test-akka.actor.default-dispatcher-5] [INFO] Cluster - Cluster Node [akka://test@10.30.170.56:25520] - Started up successfully [INFO] [12/12/2025 00:48:04.908] [test-akka.actor.internal-dispatcher-4] [Cluster(akka://test)] Cluster Node [akka://test@10.30.170.56:25520] - No downing-provider-class configured, manual cluster downing required, see https://doc.akka.io/docs/akka/current/typed/cluster.html#downing 12:48:04,908 AM [test-akka.actor.default-dispatcher-5] [INFO] Cluster - Cluster Node [akka://test@10.30.170.56:25520] - No downing-provider-class configured, manual cluster downing required, see https://doc.akka.io/docs/akka/current/typed/cluster.html#downing [INFO] [12/12/2025 00:48:04.908] [test-akka.actor.internal-dispatcher-4] [Cluster(akka://test)] Cluster Node [akka://test@10.30.170.56:25520] - No seed-nodes configured, manual cluster join required, see https://doc.akka.io/docs/akka/current/typed/cluster.html#joining 12:48:04,908 AM [test-akka.actor.default-dispatcher-5] [INFO] Cluster - Cluster Node [akka://test@10.30.170.56:25520] - No seed-nodes configured, manual cluster join required, see https://doc.akka.io/docs/akka/current/typed/cluster.html#joining 12:48:04,917 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:04,918 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-2, follower-1] 12:48:04,918 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,918 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [12/12/2025 00:48:04.918] [test-akka.actor.default-dispatcher-5] [akka://test/user/$b] received dead letter from Actor[akka://test/user/leader556#-635938802]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] [WARN] [12/12/2025 00:48:04.918] [test-akka.actor.default-dispatcher-5] [akka://test/user/$a] received dead letter from Actor[akka://test/user/leader556#-635938802]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,918 AM [main] [INFO] MockRaftActorContext - 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 12:48:04,918 AM [main] [DEBUG] DefaultConfigParamsImpl - No custom RaftPolicy specified. Using DefaultRaftPolicy 12:48:04,918 AM [test-akka.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader556#-635938802] to Actor[akka://test/user/$b] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,918 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 2 12:48:04,918 AM [test-akka.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader556#-635938802] to Actor[akka://test/user/$a] was not delivered. [2] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,918 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior555#1578334499] [INFO] [akkaDeadLetter][12/12/2025 00:48:04.918] [test-akka.actor.default-dispatcher-6] [akka://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader556#-635938802] to Actor[akka://test/user/$b] was not delivered. [1] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. [INFO] [akkaDeadLetter][12/12/2025 00:48:04.918] [test-akka.actor.default-dispatcher-6] [akka://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader556#-635938802] to Actor[akka://test/user/$a] was not delivered. [2] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,929 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader556#-635938802] 12:48:04,929 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender557#1586646774] 12:48:04,932 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:04,932 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-2, follower-1] 12:48:04,932 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,932 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [12/12/2025 00:48:04.932] [test-akka.actor.default-dispatcher-5] [akka://test/user/$b] received dead letter from Actor[akka://test/user/leader559#-1044766575]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] [WARN] [12/12/2025 00:48:04.932] [test-akka.actor.default-dispatcher-5] [akka://test/user/$a] received dead letter from Actor[akka://test/user/leader559#-1044766575]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,932 AM [main] [INFO] MockRaftActorContext - 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 12:48:04,932 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [INFO] [akkaDeadLetter][12/12/2025 00:48:04.932] [test-akka.actor.default-dispatcher-5] [akka://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$b] was not delivered. [3] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. [INFO] [akkaDeadLetter][12/12/2025 00:48:04.932] [test-akka.actor.default-dispatcher-5] [akka://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$a] was not delivered. [4] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. [WARN] [12/12/2025 00:48:04.933] [test-akka.actor.default-dispatcher-5] [akka://test/user/$a] received dead letter from Actor[akka://test/user/leader559#-1044766575]: AppendEntries [leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,933 AM [test-akka.actor.default-dispatcher-5] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$b] was not delivered. [3] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,933 AM [main] [INFO] MockRaftActorContext - IsolatedLeader isolated-leader switching from IsolatedLeader to Leader 12:48:04,933 AM [test-akka.actor.default-dispatcher-5] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$a] was not delivered. [4] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,933 AM [test-akka.actor.default-dispatcher-5] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$a] was not delivered. [5] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. [INFO] [akkaDeadLetter][12/12/2025 00:48:04.933] [test-akka.actor.default-dispatcher-6] [akka://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$a] was not delivered. [5] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,933 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Election: Leader has following peers: [follower-2, follower-1] 12:48:04,933 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,933 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,933 AM [main] [DEBUG] DefaultConfigParamsImpl - No custom RaftPolicy specified. Using DefaultRaftPolicy 12:48:04,933 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Leader, election term: 1 12:48:04,933 AM [main] [INFO] MockRaftActorContext - 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 12:48:04,933 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,933 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior558#897660555] [WARN] [12/12/2025 00:48:04.933] [test-akka.actor.default-dispatcher-13] [akka://test/user/$b] received dead letter from Actor[akka://test/user/leader559#-1044766575]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] [WARN] [12/12/2025 00:48:04.934] [test-akka.actor.default-dispatcher-13] [akka://test/user/$a] received dead letter from Actor[akka://test/user/leader559#-1044766575]: AppendEntries [leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]] [WARN] [12/12/2025 00:48:04.934] [test-akka.actor.default-dispatcher-13] [akka://test/user/$b] received dead letter from Actor[akka://test/user/leader559#-1044766575]: AppendEntries [leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]] [INFO] [akkaDeadLetter][12/12/2025 00:48:04.934] [test-akka.actor.default-dispatcher-12] [akka://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$b] was not delivered. [6] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,934 AM [test-akka.actor.default-dispatcher-12] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$b] was not delivered. [6] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. [INFO] [akkaDeadLetter][12/12/2025 00:48:04.934] [test-akka.actor.default-dispatcher-12] [akka://test/user/$a] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$a] was not delivered. [7] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,934 AM [test-akka.actor.default-dispatcher-12] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$a] was not delivered. [7] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$a] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,934 AM [test-akka.actor.default-dispatcher-12] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$b] was not delivered. [8] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. [INFO] [akkaDeadLetter][12/12/2025 00:48:04.934] [test-akka.actor.default-dispatcher-12] [akka://test/user/$b] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader559#-1044766575] to Actor[akka://test/user/$b] was not delivered. [8] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$b] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,944 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader559#-1044766575] 12:48:04,944 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender560#1569298402] 12:48:04,947 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:04,947 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [follower-4, follower-3, follower-2, follower-1] 12:48:04,947 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-4: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,947 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-3: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-11] [akka://test/user/$d] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-11] [akka://test/user/$c] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-11] [akka://test/user/$b] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-6] [akka://test/user/$a] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,948 AM [main] [INFO] MockRaftActorContext - 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 [INFO] [akkaDeadLetter][12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-11] [akka://test/user/$d] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader562#1189111482] to Actor[akka://test/user/$d] was not delivered. [9] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$d] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,948 AM [test-akka.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader562#1189111482] to Actor[akka://test/user/$d] was not delivered. [9] dead letters encountered. If this is not an expected behavior then Actor[akka://test/user/$d] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,948 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader): handleAppendEntriesReply: follower follower-2 last log term 0 for index 0 conflicts with the leader's 1 - set the follower's next index to -1 [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-6] [akka://test/user/$a] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [INFO] [akkaDeadLetter][12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-11] [akka://test/user/$c] Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader562#1189111482] to Actor[akka://test/user/$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[akka://test/user/$c] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,948 AM [test-akka.actor.default-dispatcher-6] [INFO] EmptyLocalActorRef - akkaDeadLetter Message [org.opendaylight.controller.cluster.raft.messages.AppendEntries] from Actor[akka://test/user/leader562#1189111482] to Actor[akka://test/user/$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[akka://test/user/$c] may have terminated unexpectedly. This logging can be turned off or adjusted with configuration settings 'akka.log-dead-letters' and 'akka.log-dead-letters-during-shutdown'. 12:48:04,948 AM [main] [INFO] MockRaftActorContext - IsolatedLeader isolated-leader switching from IsolatedLeader to Leader [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-5] [akka://test/user/$b] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Election: Leader has following peers: [follower-4, follower-3, follower-2, follower-1] 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Checking sendAppendEntries for follower follower-4: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Checking sendAppendEntries for follower follower-3: active: false, followerNextIndex: 1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-12] [akka://test/user/$d] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Checking sendAppendEntries for follower follower-2: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-5] [akka://test/user/$c] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=0, prevLogTerm=1, leaderCommit=-1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=4, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,948 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Checking sendAppendEntries for follower follower-1: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [12/12/2025 00:48:04.948] [test-akka.actor.default-dispatcher-12] [akka://test/user/$b] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,949 AM [main] [DEBUG] DefaultConfigParamsImpl - No custom RaftPolicy specified. Using DefaultRaftPolicy [WARN] [12/12/2025 00:48:04.949] [test-akka.actor.default-dispatcher-5] [akka://test/user/$a] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,949 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Leader, election term: 1 12:48:04,949 AM [main] [INFO] MockRaftActorContext - 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 12:48:04,949 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (Leader): Checking sendAppendEntries for follower follower-3: active: true, followerNextIndex: -1, leaderLastIndex: 1, leaderSnapShotIndex: -1 [WARN] [12/12/2025 00:48:04.949] [test-akka.actor.default-dispatcher-12] [akka://test/user/$c] received dead letter from Actor[akka://test/user/leader562#1189111482]: AppendEntries [leaderId=isolated-leader, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]] 12:48:04,949 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior561#-1891660445] 12:48:04,960 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader562#1189111482] 12:48:04,960 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender563#-1943627050] 12:48:04,963 AM [main] [INFO] IsolatedLeaderTest - Starting testLeaderSchedulesHeartbeatsEvenWhenNoFollowersRespondToInitialAppendEntries 12:48:04,964 AM [main] [DEBUG] MockRaftActorContext - leader567: Moving last applied index from -1 to 1 12:48:04,964 AM [main] [DEBUG] MockRaftActorContext - leader567 (IsolatedLeader): Election: Leader has following peers: [follower568, follower569] 12:48:04,964 AM [main] [DEBUG] MockRaftActorContext - leader567 (IsolatedLeader): Checking sendAppendEntries for follower follower568: active: false, followerNextIndex: 1, leaderLastIndex: 4, leaderSnapShotIndex: -1 12:48:04,965 AM [main] [DEBUG] MockRaftActorContext - leader567 (IsolatedLeader): Checking sendAppendEntries for follower follower569: active: false, followerNextIndex: 1, leaderLastIndex: 4, leaderSnapShotIndex: -1 12:48:05,965 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior564#1711407303] 12:48:05,976 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader565#1827892292] 12:48:05,976 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender566#1918780773] 12:48:05,976 AM [main] [INFO] TestActorFactory - Killing actor TestActor[akka://test/user/leader567] 12:48:05,977 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/follower568#-66200614] 12:48:05,977 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/follower569#1912814190] 12:48:05,979 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:05,979 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:05,979 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): In requestVote: RequestVote [term=1, candidateId=test, lastLogIndex=10000, lastLogTerm=999] - currentTerm: 1, votedFor: test, lastIndex: 1, lastTerm: 1 12:48:05,979 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply [term=1, voteGranted=true] 12:48:05,979 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior570#-73094420] 12:48:05,989 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader571#109679747] 12:48:05,990 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender572#-1070014999] 12:48:05,992 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:05,992 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:05,992 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): handleAppendEntries: AppendEntries [leaderId=leader-1, prevLogIndex=-1, prevLogTerm=-1, leaderCommit=2, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[SimpleReplicatedLogEntry [index=0, term=2, payload=zero]]] 12:48:05,992 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior573#168883591] 12:48:06,3 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader574#-900832104] 12:48:06,3 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender575#157434908] 12:48:06,5 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:06,5 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:06,5 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): In requestVote: RequestVote [term=1, candidateId=test, lastLogIndex=1999, lastLogTerm=1] - currentTerm: 1, votedFor: test, lastIndex: 2000, lastTerm: 1 12:48:06,5 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply [term=1, voteGranted=false] 12:48:06,5 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior576#19872891] 12:48:06,16 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader577#76322000] 12:48:06,16 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender578#-1378236065] 12:48:06,18 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:06,18 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:06,18 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader): Term 100 in "AppendEntries [leaderId=leader-1, prevLogIndex=0, prevLogTerm=0, leaderCommit=1, replicatedToAllIndex=-1, payloadVersion=0, recipientRaftVersion=5, leaderRaftVersion=5, leaderAddress=null, entries=[]]" message is greater than leader's term 1 - switching to Follower 12:48:06,18 AM [main] [DEBUG] DefaultConfigParamsImpl - No custom RaftPolicy specified. Using DefaultRaftPolicy 12:48:06,18 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100 12:48:06,18 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:06,18 AM [main] [INFO] MockRaftActorContext - 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 12:48:06,18 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100 12:48:06,18 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:06,18 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Found higher term in RequestVote rpc, verifying whether it's safe to update term. 12:48:06,18 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Cluster state: [] 12:48:06,18 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Candidate in requestVote:RequestVote [term=100, candidateId=candidate-1, lastLogIndex=10, lastLogTerm=100] with higher term appears reachable, updating term. 12:48:06,18 AM [main] [INFO] MockRaftActorContext - 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 12:48:06,18 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100 12:48:06,18 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:06,18 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader): Term 100 in "RequestVoteReply [term=100, voteGranted=false]" message is greater than leader's term 1 - switching to Follower 12:48:06,18 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader) :- Switching from behavior IsolatedLeader to Follower, election term: 100 12:48:06,18 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior579#1309091257] 12:48:06,29 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader580#1245219548] 12:48:06,29 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender581#-325214820] 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: Moving last applied index from -1 to 1 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test (IsolatedLeader): Election: Leader has following peers: [] 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: Moving last applied index from 1 to 0 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: Moving last applied index from 0 to 0 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: Moving last applied index from 0 to 1 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: fakeSnapshot purging log to 0 for term 1 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: Moving last applied index from 1 to 2 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: fakeSnapshot purging log to 1 for term 1 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: Moving last applied index from 2 to 2 12:48:06,31 AM [main] [DEBUG] MockRaftActorContext - test: fakeSnapshot purging log to 1 for term 1 12:48:06,31 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior582#429571170] 12:48:06,42 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader583#-844418282] 12:48:06,42 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender584#589172456] 12:48:06,44 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:06,44 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:06,44 AM [main] [INFO] MockRaftActorContext - isolated-leader (IsolatedLeader): Cannot append entries because sender's term 100 is less than 1000 12:48:06,44 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior585#-1456026772] 12:48:06,55 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader586#413965670] 12:48:06,55 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender587#2043114204] [WARN] [12/12/2025 00:48:06.058] [test-akka.actor.default-dispatcher-13] [akka://test/user/leader567] received dead letter from TestActor[akka://test/user/leader567]: org.opendaylight.controller.cluster.raft.base.messages.SendHeartBeat@13479b22 12:48:06,58 AM [main] [DEBUG] MockRaftActorContext - isolated-leader: Moving last applied index from -1 to 1 12:48:06,58 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): Election: Leader has following peers: [] 12:48:06,58 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): In requestVote: RequestVote [term=999, candidateId=test, lastLogIndex=10000, lastLogTerm=999] - currentTerm: 1000, votedFor: null, lastIndex: 1, lastTerm: 1 12:48:06,58 AM [main] [DEBUG] MockRaftActorContext - isolated-leader (IsolatedLeader): requestVote returning: RequestVoteReply [term=1000, voteGranted=false] 12:48:06,58 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/behavior588#1885323463] 12:48:06,69 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/leader589#1478933496] 12:48:06,69 AM [main] [INFO] TestActorFactory - Killing actor Actor[akka://test/user/sender590#1218268278] [INFO] [12/12/2025 00:48:06.070] [main] [CoordinatedShutdown(akka://test)] Running CoordinatedShutdown with reason [ActorSystemTerminateReason] 12:48:06,70 AM [test-akka.actor.default-dispatcher-13] [INFO] CoordinatedShutdown - Running CoordinatedShutdown with reason [ActorSystemTerminateReason] [WARN] [12/12/2025 00:48:06.071] [test-akka.actor.default-dispatcher-13] [akka://test/system/cluster/core/daemon] unhandled message from Actor[akka://test/deadLetters]: Leave(akka://test@10.30.170.56:25520) [INFO] [12/12/2025 00:48:06.071] [test-akka.actor.internal-dispatcher-2] [Cluster(akka://test)] Cluster Node [akka://test@10.30.170.56:25520] - Exiting completed 12:48:06,71 AM [test-akka.actor.default-dispatcher-13] [INFO] Cluster - Cluster Node [akka://test@10.30.170.56:25520] - Exiting completed [INFO] [12/12/2025 00:48:06.071] [test-akka.actor.internal-dispatcher-2] [Cluster(akka://test)] Cluster Node [akka://test@10.30.170.56:25520] - Shutting down... 12:48:06,71 AM [test-akka.actor.default-dispatcher-13] [INFO] Cluster - Cluster Node [akka://test@10.30.170.56:25520] - Shutting down... [INFO] [12/12/2025 00:48:06.072] [test-akka.actor.internal-dispatcher-2] [Cluster(akka://test)] Cluster Node [akka://test@10.30.170.56:25520] - Successfully shut down 12:48:06,72 AM [test-akka.actor.default-dispatcher-13] [INFO] Cluster - Cluster Node [akka://test@10.30.170.56:25520] - Successfully shut down [INFO] [12/12/2025 00:48:06.074] [test-akka.remote.default-remote-dispatcher-8] [akka://test@10.30.170.56:25520/system/remoting-terminator] Shutting down remote daemon. [INFO] [12/12/2025 00:48:06.074] [test-akka.remote.default-remote-dispatcher-8] [akka://test@10.30.170.56:25520/system/remoting-terminator] Remote daemon shut down; proceeding with flushing remote transports. 12:48:06,74 AM [test-akka.actor.default-dispatcher-13] [INFO] RemoteActorRefProvider$RemotingTerminator - Shutting down remote daemon. 12:48:06,74 AM [test-akka.actor.default-dispatcher-13] [INFO] RemoteActorRefProvider$RemotingTerminator - Remote daemon shut down; proceeding with flushing remote transports. [INFO] [12/12/2025 00:48:06.076] [test-akka.remote.default-remote-dispatcher-7] [akka://test@10.30.170.56:25520/system/remoting-terminator] Remoting shut down. 12:48:06,76 AM [test-akka.actor.default-dispatcher-5] [INFO] RemoteActorRefProvider$RemotingTerminator - Remoting shut down. [DEBUG] [12/12/2025 00:48:06.076] [test-akka.actor.internal-dispatcher-3] [EventStream] shutting down: StandardOutLogger