Please provide all detail you have, esp. what kind of operation you run 
concurrently.

> Am 05.05.2017 um 16:17 schrieb cong <[email protected]>:
> 
> Hi all,
>   I was in trouble when I was using the neo4j 2.3.3. How can I solve this 
> problem? Thanks for your kindly help.
> 
> org.neo4j.kernel.DeadlockDetectedException: Unable to acquire exclusive lock: 
> Cannot access 'RequestContext[machineId=3, lastAppliedTransaction=4298828, 
> eventIdentifier=14, hashCode=-2040536147, epoch=282967889116535, 
> checksum=172800136434]', no such entry exists.
>       at 
> org.neo4j.kernel.ha.lock.SlaveLocksClient.receiveLockResponse(SlaveLocksClient.java:280)
>       at 
> org.neo4j.kernel.ha.lock.SlaveLocksClient.acquireExclusiveOnMaster(SlaveLocksClient.java:265)
>       at 
> org.neo4j.kernel.ha.lock.SlaveLocksClient.acquireExclusive(SlaveLocksClient.java:128)
>       at 
> org.neo4j.kernel.impl.transaction.state.RelationshipCreator.connect(RelationshipCreator.java:204)
>       at 
> org.neo4j.kernel.impl.transaction.state.RelationshipCreator.connect(RelationshipCreator.java:174)
>       at 
> org.neo4j.kernel.impl.transaction.state.RelationshipCreator.connectRelationship(RelationshipCreator.java:124)
>       at 
> org.neo4j.kernel.impl.transaction.state.RelationshipCreator.relationshipCreate(RelationshipCreator.java:69)
>       at 
> org.neo4j.kernel.impl.transaction.state.NeoStoreTransactionContext.relationshipCreate(NeoStoreTransactionContext.java:77)
>       at 
> org.neo4j.kernel.impl.transaction.state.TransactionRecordState.relCreate(TransactionRecordState.java:260)
>       at 
> org.neo4j.kernel.impl.api.KernelTransactionImplementation$TransactionToRecordStateVisitor.visitCreatedRelationship(KernelTransactionImplementation.java:762)
>       at 
> org.neo4j.kernel.impl.api.state.TxState$15.visitAddedRelationship(TxState.java:403)
>       at 
> org.neo4j.kernel.api.txstate.RelationshipChangeVisitorAdapter$1.visit(RelationshipChangeVisitorAdapter.java:124)
>       at 
> org.neo4j.kernel.impl.api.state.RelationshipState$Mutable.accept(RelationshipState.java:68)
>       at 
> org.neo4j.kernel.impl.api.state.TxState.relationshipVisit(TxState.java:1654)
>       at 
> org.neo4j.kernel.api.txstate.RelationshipChangeVisitorAdapter$1.visit(RelationshipChangeVisitorAdapter.java:114)
>       at 
> org.neo4j.kernel.api.txstate.RelationshipChangeVisitorAdapter.visitAddedRelationship(RelationshipChangeVisitorAdapter.java:65)
>       at 
> org.neo4j.kernel.api.txstate.RelationshipChangeVisitorAdapter.visitAdded(RelationshipChangeVisitorAdapter.java:89)
>       at 
> org.neo4j.kernel.api.txstate.RelationshipChangeVisitorAdapter.visitAdded(RelationshipChangeVisitorAdapter.java:48)
>       at 
> org.neo4j.kernel.impl.util.diffsets.SuperDiffSets.accept(SuperDiffSets.java:65)
>       at 
> org.neo4j.kernel.impl.util.diffsets.RelationshipDiffSets.accept(RelationshipDiffSets.java:44)
>       at org.neo4j.kernel.impl.api.state.TxState.accept(TxState.java:271)
>       at 
> org.neo4j.kernel.impl.api.KernelTransactionImplementation.prepareRecordChangesFromTransactionState(KernelTransactionImplementation.java:397)
>       at 
> org.neo4j.kernel.impl.api.KernelTransactionImplementation.commit(KernelTransactionImplementation.java:530)
>       at 
> org.neo4j.kernel.impl.api.KernelTransactionImplementation.close(KernelTransactionImplementation.java:458)
>       at 
> org.neo4j.kernel.TopLevelTransaction.close(TopLevelTransaction.java:97)
>       at org.neo4j.tinkerpop.api.impl.Neo4jTxImpl.close(Neo4jTxImpl.java:47)
> 
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