The message show that "Database failed to start DB [database
Please follow up with an actual post, and include your neo4j.log and debug.log contents. 
The below is message show on my screen
Database failed to start: DB [database-87cde0e1-3b27-4e55-9f18-2a949a54aac3] 'v3.5.3' exited with status 'KILLED'. Check the logs
Please advise how to solve this problem.
Thank you for your help.
Chaiyan S.
I'm sorry. I'm unable to help with these logs as I can't read them. Please post an actual text file, consider using for example https://gist.github.com/
1 Like
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.internal.locker.StoreLockerLifecycleAdapter@7b8233cd' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:211)
... 9 more
Caused by: org.neo4j.kernel.StoreLockException: Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)
at org.neo4j.kernel.internal.locker.StoreLocker.storeLockException(StoreLocker.java:116)
at org.neo4j.kernel.internal.locker.StoreLocker.checkLock(StoreLocker.java:92)
at org.neo4j.kernel.internal.locker.GlobalStoreLocker.checkLock(GlobalStoreLocker.java:61)
at org.neo4j.kernel.internal.locker.StoreLockerLifecycleAdapter.start(StoreLockerLifecycleAdapter.java:36)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 11 more
2019-03-16 15:09:56.248+0000 INFO Neo4j Server shutdown initiated by request
2019-03-16 15:11:32.831+0000 INFO ======== Neo4j 3.5.3 ========
2019-03-16 15:11:32.837+0000 INFO Starting...
2019-03-16 15:11:33.718+0000 INFO Initiating metrics...
2019-03-16 15:11:33.732+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@57eda880' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)". Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@57eda880' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@57eda880' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:45)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:184)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:123)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:90)
at com.neo4j.server.enterprise.CommercialEntryPoint.main(CommercialEntryPoint.java:22)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase@57eda880' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:177)
... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory, C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:216)
at com.neo4j.commercial.edition.CommercialGraphDatabase.(CommercialGraphDatabase.java:20)
at com.neo4j.server.database.CommercialGraphFactory.newGraphDatabase(CommercialGraphFactory.java:40)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:78)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.internal.locker.StoreLockerLifecycleAdapter@6cfcd46d' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:211)
... 9 more
Caused by: org.neo4j.kernel.StoreLockException: Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)
at org.neo4j.kernel.internal.locker.StoreLocker.storeLockException(StoreLocker.java:116)
at org.neo4j.kernel.internal.locker.StoreLocker.checkLock(StoreLocker.java:92)
at org.neo4j.kernel.internal.locker.GlobalStoreLocker.checkLock(GlobalStoreLocker.java:61)
at org.neo4j.kernel.internal.locker.StoreLockerLifecycleAdapter.start(StoreLockerLifecycleAdapter.java:36)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 11 more
2019-03-16 15:11:33.733+0000 INFO Neo4j Server shutdown initiated by request
2019-03-16 15:20:45.432+0000 INFO ======== Neo4j 3.5.3 ========
2019-03-16 15:20:45.438+0000 INFO Starting...
2019-03-16 15:20:46.564+0000 INFO Initiating metrics...
2019-03-16 15:20:46.594+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@57eda880' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)". Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@57eda880' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@57eda880' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:45)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:184)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:123)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:90)
at com.neo4j.server.enterprise.CommercialEntryPoint.main(CommercialEntryPoint.java:22)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase@57eda880' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:177)
... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory, C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:216)
at com.neo4j.commercial.edition.CommercialGraphDatabase.(CommercialGraphDatabase.java:20)
at com.neo4j.server.database.CommercialGraphFactory.newGraphDatabase(CommercialGraphFactory.java:40)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:78)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.internal.locker.StoreLockerLifecycleAdapter@6cfcd46d' was successfully initialized, but failed to start. Please see the attached cause exception "Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:473)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:211)
... 9 more
Caused by: org.neo4j.kernel.StoreLockException: Store and its lock file has been locked by another process: C:\Users\Chaiyan Shagotong.Neo4jDesktop\neo4jDatabases\database-33cea78a-c345-4777-8373-5fbb38e6bbe9\installation-3.5.3\data\databases\store_lock. Please ensure no other process is using this database, and that the directory is writable (required even for read-only access)
at org.neo4j.kernel.internal.locker.StoreLocker.storeLockException(StoreLocker.java:116)
at org.neo4j.kernel.internal.locker.StoreLocker.checkLock(StoreLocker.java:92)
at org.neo4j.kernel.internal.locker.GlobalStoreLocker.checkLock(GlobalStoreLocker.java:61)
at org.neo4j.kernel.internal.locker.StoreLockerLifecycleAdapter.start(StoreLockerLifecycleAdapter.java:36)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 11 more
2019-03-16 15:20:46.595+0000 INFO Neo4j Server shutdown initiated by request
David.allen,
I sent you text file from neo4j log . Can you read it?
It looks like this is the relevant piece of information.
This suggests that you have two running database processes trying to access the same set of files, which won't work. Please attempt to use your operating system's process monitor to kill any instance of Neo4j you see running, and then try to restart the database to see if it works.