I think your _gdbService variable still refers to the old db-instance and was not set to the newly created instance.
How do you wait to continue after you finished the external operation with the db? Could that be? Michael On Sat, Nov 22, 2014 at 8:59 PM, Markus Gutmann <[email protected]> wrote: > I do > > 1. connect > 2. disconnect > 3. connect > > as described in my original post. > > Then I execute the following method: > > try ( Transaction transaction = _gdbService.beginTx() ) { > > Iterable<Relationship> relationships = node.getRelationships(Direction. > OUTGOING); > ... > > > and the first line throws an exception with the following trace: > > > org.neo4j.graphdb.DatabaseShutdownException: This database is shutdown. > at org.neo4j.kernel.impl.core.ThreadToStatementContextBridge. > checkIfShutdown(ThreadToStatementContextBridge.java:80) > at org.neo4j.kernel.impl.core.ThreadToStatementContextBridge.instance( > ThreadToStatementContextBridge.java:54) > at org.neo4j.kernel.impl.core.NodeProxy.getRelationships(NodeProxy.java: > 140) > at org.neo4j.kernel.impl.core.NodeProxy.getRelationships(NodeProxy.java: > 76) > at thesisPrototype.cfgUtilizer.cfgdb.GraphDatabase. > findAdjacentReachableNode(GraphDatabase.java:336) > at thesisPrototype.reconnaissanceCore.CFGDBTracer.hook(CFGDBTracer.java: > 92) > at thesisPrototype.rmiBridge.TracerProxy.hook(TracerProxy.java:16) > at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) > at java.lang.reflect.Method.invoke(Unknown Source) > at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source) > at sun.rmi.transport.Transport$1.run(Unknown Source) > at sun.rmi.transport.Transport$1.run(Unknown Source) > at java.security.AccessController.doPrivileged(Native Method) > at sun.rmi.transport.Transport.serviceCall(Unknown Source) > at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source) > at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown > Source) > at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown > Source) > at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) > at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) > at java.lang.Thread.run(Unknown Source) > > Please, .. I need to fix that issue as soon as possible and I would be > more than grateful for any help... > > > On Saturday, November 22, 2014 5:39:15 PM UTC+1, Markus Gutmann wrote: >> >> _gdbFactory = new GraphDatabaseFactory(); >> _gdbService = _gdbFactory.newEmbeddedDatabase(_gdbPath); >> _gdbEngine = new ExecutionEngine(_gdbService); >> do some work >> disconnect from the gdbdo some workdisconnect from the gdb >> >> I am using a local Neo4j server instance and the Neo4j Java API to access >> a graph-database (gdb). >> >> I simply want to achieve the following workflow: >> >> 1. connect to the local gdb from a Java program >> >> I do this using: >> >> _gdbFactory = new GraphDatabaseFactory(); >> _gdbService = _gdbFactory.newEmbeddedDatabase(_gdbPath); >> _gdbEngine = new ExecutionEngine(_gdbService); >> >> 2. then disconnect using. >> >> _gdbService.shutdown(); >> >> 3. connect with another process to the same gdb >> >> e.g. with the locally installed Neo4j program. >> >> 4. disconnect from the gdb from this process >> >> e.g. by simply clicking the "stop" button at the Neo4j program. >> >> 5. again connect to the gdb with the Java program using again the >> same code as in 1. >> >> *Right now, point 5 is not working!* >> >> The use of >> >> GraphDatabaseService.shutdown().shutdown >> >> seems to finalize the gdb in some way that I cannot connect to it any >> more. >> >> After reconnecting I get an Exception which tells me: *"This database is >> shutdown!"* >> >> So, my question is: >> >> What is the common way to connect - disconnect - reconnect to a Neo4J gdb >> ? Is there an alternative to the shutdown-method from above? >> > -- > You received this message because you are subscribed to the Google Groups > "Neo4j" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Neo4j" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
