CODEWITHSUNDEEP
neo4j
Sundar
Sundar

Reputation: 1

Java program unable to connect on Neo4j database

I've been using neo4j 1.9.3 for the past one week. Unable to connect to neo4j DB through app as getting the below error.

Exception in thread "main" java.lang.RuntimeException:  org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.StoreLockerLifecycleAdapter@913fe2' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:280)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:106)
at org.neo4j.graphdb.factory.GraphDatabaseFactory$1.newDatabase(GraphDatabaseFactory.java:88)
at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:207)
at org.neo4j.graphdb.factory.GraphDatabaseFactory.newEmbeddedDatabase(GraphDatabaseFactory.java:69)
at EmbeddedNeo4j.createDb(EmbeddedNeo4j.java:59)
at EmbeddedNeo4j.main(EmbeddedNeo4j.java:42)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.StoreLockerLifecycleAdapter@913fe2' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:497)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:104)
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:258)
... 6 more
Caused by: org.neo4j.kernel.StoreLockException: Could not create lock file
at org.neo4j.kernel.StoreLocker.checkLock(StoreLocker.java:74)
at org.neo4j.kernel.StoreLockerLifecycleAdapter.start(StoreLockerLifecycleAdapter.java:40)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:491)
... 8 more

I have my DB_Path

String DB_PATH = "C:\\Software-Jars\\neo4j-community-1.9.3\\data\\graph.db"

Upvotes: 0

Views: 331

Answers (1)

Nicholas
Nicholas

Reputation: 7501

Either you are running 2 instances of your program, or you need to make sure you have permission to write to that directory. Neo4j created that lock file, and if an instance is already reading/writing that database, then nothing else can.

Upvotes: 1

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