I am currently unable to start a neo4j instance on a server where it was previously working. Neo4j produces an error saying one of the files is externally locked. From reading answers to similar questions I know this usually means another instance is currently using the store.
I have used lsof to look for any open files with 'neo' in their name but there are no open files.
I have used ps to look for any process with 'neo' or 'java' it it's name but no luck with that either.
I am not sure where to go from here to get neo4j working again. How do I figure out why this file is locked?
[site#x neo4j]$ neo4jstart-234.sh
[site#x neo4j]$ WARNING: Max 1024 open files allowed, minimum of 40 000 recommended. See the Neo4j manual.
Starting Neo4j Server console-mode...
2017-07-20 10:37:51.073-0400 INFO Successfully shutdown Neo4j Server
2017-07-20 10:37:51.074-0400 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#79b877d2' was successfully initialized, but failed to start. Please see attached cause exception. Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#79b877d2' was successfully initialized, but failed to start. Please see attached cause exception.
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#79b877d2' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:67)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:235)
at org.neo4j.server.Bootstrapper.start(Bootstrapper.java:97)
at org.neo4j.server.CommunityBootstrapper.start(CommunityBootstrapper.java:48)
at org.neo4j.server.CommunityBootstrapper.main(CommunityBootstrapper.java:35)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase#79b877d2' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:462)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:195)
... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.impl.factory.CommunityFacadeFactory, /scratch/neo4j/neo4j-community-2.3.4/data/graph.db
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:143)
at org.neo4j.kernel.impl.factory.CommunityFacadeFactory.newFacade(CommunityFacadeFactory.java:43)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:108)
at org.neo4j.server.CommunityNeoServer$1.newGraphDatabase(CommunityNeoServer.java:66)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:95)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.NeoStoreDataSource#14c7f72f' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:462)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.kernel.impl.transaction.state.DataSourceManager.start(DataSourceManager.java:112)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:111)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:139)
... 10 more
Caused by: org.neo4j.kernel.impl.store.UnderlyingStorageException: Unable to open store file: /scratch/neo4j/neo4j-community-2.3.4/data/graph.db/neostore.nodestore.db.labels
at org.neo4j.kernel.impl.store.CommonAbstractStore.checkStorage(CommonAbstractStore.java:161)
at org.neo4j.kernel.impl.store.CommonAbstractStore.initialise(CommonAbstractStore.java:102)
at org.neo4j.kernel.impl.store.NeoStores.initialize(NeoStores.java:429)
at org.neo4j.kernel.impl.store.NeoStores$StoreType$1.open(NeoStores.java:85)
at org.neo4j.kernel.impl.store.NeoStores$StoreType$1.open(NeoStores.java:78)
at org.neo4j.kernel.impl.store.NeoStores.openStore(NeoStores.java:422)
at org.neo4j.kernel.impl.store.NeoStores.getOrCreateStore(NeoStores.java:467)
at org.neo4j.kernel.impl.store.NeoStores.<init>(NeoStores.java:365)
at org.neo4j.kernel.impl.store.StoreFactory.openNeoStores(StoreFactory.java:174)
at org.neo4j.kernel.impl.store.StoreFactory.openAllNeoStores(StoreFactory.java:138)
at org.neo4j.kernel.NeoStoreDataSource.buildNeoStore(NeoStoreDataSource.java:661)
at org.neo4j.kernel.NeoStoreDataSource.start(NeoStoreDataSource.java:535)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:452)
... 15 more
Caused by: org.neo4j.io.pagecache.impl.FileLockException: Externally locked: /scratch/neo4j/neo4j-community-2.3.4/data/graph.db/neostore.nodestore.db.labels
at org.neo4j.io.pagecache.impl.SingleFilePageSwapper.acquireLock(SingleFilePageSwapper.java:209)
at org.neo4j.io.pagecache.impl.SingleFilePageSwapper.<init>(SingleFilePageSwapper.java:160)
at org.neo4j.io.pagecache.impl.SingleFilePageSwapperFactory.createPageSwapper(SingleFilePageSwapperFactory.java:64)
at org.neo4j.io.pagecache.impl.muninn.MuninnPagedFile.<init>(MuninnPagedFile.java:95)
at org.neo4j.io.pagecache.impl.muninn.MuninnPageCache.map(MuninnPageCache.java:357)
at org.neo4j.kernel.impl.store.CommonAbstractStore.checkStorage(CommonAbstractStore.java:140)
... 27 more
Related
today I´ve updated my Neo4j Server (running on Ubuntu) from version 3.1.0 to 3.1.3! Everything works so far, so good.
After restarting my server, it crashes instantly. This happens everytime when I start/restart the server...
This is the part from the error log neo4.log
2017-05-01 15:18:30.896+0000 INFO Starting...
2017-05-01 15:18:31.950+0000 INFO Bolt enabled on localhost:7687.
2017-05-01 15:18:35.181+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#486c3088' was successfully initialized, but failed to start. Please see attached cause exception. Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#486c3088' was successfully initialized, but failed to start. Please see attached cause exception.
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#486c3088' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:68)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:227)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:91)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:68)
at org.neo4j.server.CommunityEntryPoint.main(CommunityEntryPoint.java:28)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase#486c3088' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:443)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:199)
... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory, /var/lib/neo4j/data/databases/graph.db
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:193)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:124)
at org.neo4j.server.CommunityNeoServer.lambda$static$0(CommunityNeoServer.java:57)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:89)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.proc.Procedures#78b283fb' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:443)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:189)
... 9 more
Caused by: org.neo4j.kernel.api.exceptions.ProcedureException: Unable to register procedure, because the name `apoc.algo.betweenness` is already in use.
at org.neo4j.kernel.impl.proc.ProcedureRegistry.register(ProcedureRegistry.java:81)
at org.neo4j.kernel.impl.proc.Procedures.register(Procedures.java:103)
at org.neo4j.kernel.impl.proc.Procedures.register(Procedures.java:76)
at org.neo4j.kernel.impl.proc.Procedures.start(Procedures.java:209)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
... 11 more
nohup: ignoring input
2017-05-01 15:19:58.689+0000 INFO Starting...
2017-05-01 15:19:59.725+0000 INFO Bolt enabled on localhost:7687.
2017-05-01 15:20:01.504+0000 ERROR Cannot register procedure AssertSchemaProcedure org.neo4j.kernel.api.proc.ProcedureSignature$Builder.mode(Lorg/neo4j/procedure/Mode;)Lorg/neo4j/kernel/api/proc/ProcedureSignature$Builder;
java.lang.NoSuchMethodError: org.neo4j.kernel.api.proc.ProcedureSignature$Builder.mode(Lorg/neo4j/procedure/Mode;)Lorg/neo4j/kernel/api/proc/ProcedureSignature$Builder;
at apoc.schema.AssertSchemaProcedure.signature(AssertSchemaProcedure.java:154)
at org.neo4j.kernel.impl.proc.ProcedureRegistry.register(ProcedureRegistry.java:53)
at org.neo4j.kernel.impl.proc.Procedures.register(Procedures.java:103)
at org.neo4j.kernel.impl.proc.Procedures.register(Procedures.java:76)
at apoc.ApocKernelExtensionFactory$ApocLifecycle.registerCustomProcedures(ApocKernelExtensionFactory.java:79)
at apoc.ApocKernelExtensionFactory$ApocLifecycle.start(ApocKernelExtensionFactory.java:67)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.kernel.extension.KernelExtensions.start(KernelExtensions.java:86)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:189)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:124)
at org.neo4j.server.CommunityNeoServer.lambda$static$0(CommunityNeoServer.java:57)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:89)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:199)
Does anyone had this problem after updating Neo4j or can help me with "understanding" that error log?
Thanks in advance ;)
UPDATE
When I start Neo4j I´ll get this message:
Starting Neo4j.
Started neo4j (pid 28724). By default, it is available at http://localhost:7474/
/usr/share/neo4j/bin/neo4j: line 176: /usr/share/neo4j/logs /var/log/neo4j/neo4j.log: No such file or directory
There may be a short delay until the server is ready.
See /usr/share/neo4j/logs /var/log/neo4j/neo4j.log for current status.
I´ve highlighted the 'suspect' part, which doesn´t appear before updating...
This is the ultimate cause in your call stack:
Caused by: org.neo4j.kernel.api.exceptions.ProcedureException: Unable to register procedure, because the name `apoc.algo.betweenness` is already in use.
This type of exception, where an APOC procedure name is already in use, can be seen when you install a new APOC plugin .jar without removing an existing APOC .jar.
If this applies to you, delete the old APOC .jar and try starting neo4j again.
I have been using Neo4j for more than 3 months on this server. Not sure what changed, but today morning I am unable to start Neo4j server.
Till today everything was fine and there were not changes that I know of were made to Neo4j or anything else.
I am currently using neo4j 3.1.0.
The following is the error log.
xxx#dataserver:~$ sudo neo4j console
Starting Neo4j.
WARNING: Max 1024 open files allowed, minimum of 40000 recommended. See the Neo4j manual.
2017-05-01 03:09:17.948+0000 INFO Starting...
2017-05-01 03:09:18.616+0000 INFO Bolt enabled on 0.0.0.0:7687.
2017-05-01 03:09:20.766+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#2241b683' was successfully initialized, but failed to start. Please see attached cause exception. Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#2241b683' was successfully initialized, but failed to start. Please see attached cause exception.
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#2241b683' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:68)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:227)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:91)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:68)
at org.neo4j.server.CommunityEntryPoint.main(CommunityEntryPoint.java:28)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase#2241b683' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:443)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:199)
... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory, /var/lib/neo4j/data/databases/default.graphdb
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:193)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:124)
at org.neo4j.server.CommunityNeoServer.lambda$static$0(CommunityNeoServer.java:57)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:89)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.recovery.Recovery#4b1ec7fa' failed to initialize. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:415)
at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:62)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:98)
at org.neo4j.kernel.NeoStoreDataSource.start(NeoStoreDataSource.java:517)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.kernel.impl.transaction.state.DataSourceManager.start(DataSourceManager.java:100)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:189)
... 9 more
Caused by: java.lang.IllegalArgumentException: Unknown entry type -1 for version -1. At position LogPosition{logVersion=94, byteOffset=157773910} and entry version V2_1
at org.neo4j.kernel.impl.transaction.log.entry.LogEntryVersion.entryParser(LogEntryVersion.java:141)
at org.neo4j.kernel.impl.transaction.log.entry.VersionAwareLogEntryReader.readLogEntry(VersionAwareLogEntryReader.java:84)
at org.neo4j.kernel.impl.transaction.log.LogEntryCursor.next(LogEntryCursor.java:54)
at org.neo4j.kernel.recovery.LatestCheckPointFinder.find(LatestCheckPointFinder.java:78)
at org.neo4j.kernel.recovery.PositionToRecoverFrom.apply(PositionToRecoverFrom.java:53)
at org.neo4j.kernel.recovery.DefaultRecoverySPI.getPositionToRecoverFrom(DefaultRecoverySPI.java:80)
at org.neo4j.kernel.recovery.Recovery.init(Recovery.java:80)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:405)
... 18 more
Stop service
Change dbms.allow_upgrade to true in neo4j config file
Start service again
I had the same problem, and upgrading the db fixed it. I would also suggest changing the password if you are still using default password. Once you start the service it should upgrade the database, once upgraded, you can change the dbms.allow_upgrade to false again if you dont want neo4j to update automatically.
Following the documentation we can set up a cluster with an empty DB.
However, following the instructions to set up a cluster with an existing DB we are met with failure, after 10 minutes all three cores throw an exception.
This could be due to: causal_clustering.join_catch_up_timeout=10m
However the databases are already in sync, so "start up should be instantaneous"
Any information pointing us in the right direction would be appreciated.
Exception:
2017-01-27 16:28:56.128+0000 INFO Starting...
2017-01-27 16:28:56.787+0000 INFO Bolt enabled on 192.168.252.231:7687.
2017-01-27 16:28:56.794+0000 INFO Initiating metrics...
2017-01-27 16:28:56.885+0000 INFO Waiting for other members to join cluster before continuing...
2017-01-27 17:00:28.225+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#1db1d0b8' was successfully initialized, but failed to start. Please see attached cause exception. Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#1db1d0b8' was successfully initialized, but failed to start. Please see attached cause exception.
org.neo4j.server.ServerStartupException: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#1db1d0b8' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.server.exception.ServerStartupErrors.translateToServerStartupError(ServerStartupErrors.java:68)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:227)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:91)
at org.neo4j.server.ServerBootstrapper.start(ServerBootstrapper.java:68)
at org.neo4j.server.enterprise.EnterpriseEntryPoint.main(EnterpriseEntryPoint.java:32)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase#1db1d0b8' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:443)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:199)
... 3 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory, /var/lib/neo4j/data/databases/graph.db
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:193)
at org.neo4j.causalclustering.core.CoreGraphDatabase.<init>(CoreGraphDatabase.java:56)
at org.neo4j.causalclustering.core.CoreGraphDatabase.<init>(CoreGraphDatabase.java:47)
at org.neo4j.server.enterprise.EnterpriseNeoServer.lambda$static$2(EnterpriseNeoServer.java:95)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:89)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
... 5 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.causalclustering.core.state.CoreState#278df960' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:443)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:189)
... 10 more
Caused by: java.lang.RuntimeException: This machine failed to get the start state in time.
at org.neo4j.causalclustering.core.state.CoreState.start(CoreState.java:176)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
... 12 more
Please check if the following configurations are in order for your cluster.
1) neo4j.conf
"dbms.connectors.default_advertised_address" for each causal cluster is configured correctly and these IP addresses are reachable to each other.
also, set "dbms.connectors.default_listen_address" to 0.0.0.0
2) unbind the nodes and restart them.
Let me know if you still see the issue.
Our neo4j server just crashed, and when I tried to call bin/neo4j start, I'm getting this error:
2015-04-21 07:50:49.529 ERROR Failed to start Neo Server on port [unknown port] Starting Neo4j Server failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#2c651755' was successfully initialized, but failed to start. Please see attached cause exception.
org.neo4j.server.ServerStartupException: Starting Neo4j Server failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase#2c651755' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:244)
at org.neo4j.server.Bootstrapper.start(Bootstrapper.java:125)
at org.neo4j.server.Bootstrapper.main(Bootstrapper.java:68)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.server.database.LifecycleManagingDatabase#2c651755' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:499)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:108)
at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:192)
... 2 more
Caused by: java.lang.RuntimeException: Error starting org.neo4j.kernel.EmbeddedGraphDatabase, /var/lib/neo4j/hangwith.db
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:314)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:59)
at org.neo4j.server.database.LifecycleManagingDatabase$1.newGraphDatabase(LifecycleManagingDatabase.java:43)
at org.neo4j.server.database.LifecycleManagingDatabase.start(LifecycleManagingDatabase.java:103)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:493)
... 4 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.state.DataSourceManager#10c9f7b4' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:499)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:108)
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:309)
... 8 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.NeoStoreDataSource#138924b9' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:499)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:108)
at org.neo4j.kernel.impl.transaction.state.DataSourceManager.start(DataSourceManager.java:117)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:493)
... 10 more
Caused by: org.neo4j.kernel.impl.storemigration.StoreUpgrader$UnexpectedUpgradingStoreVersionException: 'neostore.nodestore.db' has a store version number that we cannot upgrade from. Expected 'v0.A.3' but file is version 'NodeStore v0.A.4'.
at org.neo4j.kernel.impl.storemigration.UpgradableDatabase.checkUpgradeable(UpgradableDatabase.java:88)
at org.neo4j.kernel.impl.storemigration.StoreMigrator.needsMigration(StoreMigrator.java:158)
at org.neo4j.kernel.impl.storemigration.StoreUpgrader.getParticipantsEagerToMigrate(StoreUpgrader.java:259)
at org.neo4j.kernel.impl.storemigration.StoreUpgrader.migrateIfNeeded(StoreUpgrader.java:134)
at org.neo4j.kernel.NeoStoreDataSource.upgradeStore(NeoStoreDataSource.java:532)
at org.neo4j.kernel.NeoStoreDataSource.start(NeoStoreDataSource.java:434)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:493)
... 13 more
The server lib were magically updated to 2.3.0-M01.
How do I fix this problem? Would downgrade to the older binary help me? If so, which binary supports NodeStore v0.A.4?
Seems like you have upgraded your Neo4j instance but it will not start since the database store files have not been upgraded. These require an explicit upgrade. What was the version of Neo4j you were running previously?
To upgrade your graph database explicitly you need to set
allow_store_upgrade=true
in \conf\neo4j.properties. Note that this line should be present in the file already but commented out with a #.
Bear in mind that 2.3.0-M1 is a milestone release and may not be stable. The latest stable version is 2.2.1.
I am trying to import data from .ods file to neo4j. But my talend job is giving following error
[statistics] connecting to socket on port 3842
[statistics] connected
Exception in component tNeo4jConnection_1
java.lang.RuntimeException: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager#786c730' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:252)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:86)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:74)
at org.neo4j.kernel.EmbeddedGraphDatabase.<init>(EmbeddedGraphDatabase.java:59)
at importdata.dataimport_0_1.DataImport.tNeo4jConnection_1Process(DataImport.java:304)
at importdata.dataimport_0_1.DataImport.runJobInTOS(DataImport.java:1135)
at importdata.dataimport_0_1.DataImport.main(DataImport.java:1001)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager#786c730' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:495)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:105)
at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:239)
... 6 more
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource#73da669c' was successfully initialized, but failed to start. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:495)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:105)
at org.neo4j.kernel.impl.transaction.XaDataSourceManager.start(XaDataSourceManager.java:131)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:489)
... 8 more
Caused by: java.lang.IllegalStateException: Unable to lock store [D:\Softwares\neo4j-community-1.9.1-windows\neo4j-community-1.9.1\data\graph.db\neostore], this is usually a result of some other Neo4j kernel running using the same store.
at org.neo4j.kernel.impl.nioneo.store.CommonAbstractStore.checkStorage(CommonAbstractStore.java:178)
at org.neo4j.kernel.impl.nioneo.store.CommonAbstractStore.<init>(CommonAbstractStore.java:119)
at org.neo4j.kernel.impl.nioneo.store.AbstractStore.<init>(AbstractStore.java:80)
at org.neo4j.kernel.impl.nioneo.store.NeoStore.<init>(NeoStore.java:88)
at org.neo4j.kernel.impl.nioneo.store.StoreFactory.attemptNewNeoStore(StoreFactory.java:106)
at org.neo4j.kernel.impl.nioneo.store.StoreFactory.newNeoStore(StoreFactory.java:95)
at org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource.start(NeoStoreXaDataSource.java:244)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:489)
... 11 more
Any idea??
This normally happens when you have two different processes trying to access the same database. Each process holds the lock of the db. When other process tries accessing it, it needs to release the lock.
If on linux, you can know the process accessing it from lsof command (example here).