java – Neo4j服务器启动异常

当我用maven示例运行示例java时,我无法启动neo4j server..iam使用java 1.7和neo4j 2.0.0,我遇到了这个问题.这是日志文件 Oct 09, 2013 8:49:14 AM org.neo4j.server.logging.Logger log INFO: Setting startup timeout to: 120000ms based on -1 Oct 09, 2013 8:49:15 AM org.neo4j.server.logging.Logger log SEVERE: org.neo4j.server.ServerStartupException: Starting Neo4j Server failed: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager@ce8273' was successfully initialized, but failed to start. Please see attached cause exception. at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:211) at org.neo4j.server.Bootstrapper.start(Bootstrapper.java:86) at org.neo4j.server.Bootstrapper.main(Bootstrapper.java:49) Caused by: java.lang.RuntimeException: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager@ce8273' 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$1.newDatabase(GraphDatabaseFactory.java:88) at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:207) at org.neo4j.kernel.impl.recovery.StoreRecoverer.recover(StoreRecoverer.java:114) at org.neo4j.server.preflight.PerformRecoveryIfNecessary.run(PerformRecoveryIfNecessary.java:59) at org.neo4j.server.preflight.PreFlightTasks.run(PreFlightTasks.java:70) at org.neo4j.server.AbstractNeoServer.runPreflightTasks(AbstractNeoServer.java:276) at org.neo4j.server.AbstractNeoServer.start(AbstractNeoServer.java:162) ... 2 more Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.transaction.XaDataSourceManager@ce8273' was successfully initialized, but failed to start. Please see attached cause exception. at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:497) at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:104) at org.neo4j.kernel.InternalAbstractGraphDatabase.run(InternalAbstractGraphDatabase.java:258) ... 10 more Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource@1f5329f' was successfully initialized, but failed to start. Please see attached cause exception. at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:497) at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:104) at org.neo4j.kernel.impl.transaction.XaDataSourceManager.start(XaDataSourceManager.java:128) at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:491) ... 12 more Caused by: org.neo4j.kernel.impl.storemigration.UpgradeNotAllowedByConfigurationException: Failed to start Neo4j with an older data store version. To enable automatic upgrade, please set configuration parameter "allow_store_upgrade=true" at org.neo4j.kernel.impl.storemigration.ConfigMapUpgradeConfiguration.checkConfigurationAllowsAutomaticUpgrade(ConfigMapUpgradeConfiguration.java:39) at org.neo4j.kernel.impl.storemigration.StoreUpgrader.attemptUpgrade(StoreUpgrader.java:66) at org.neo4j.kernel.impl.nioneo.store.StoreFactory.tryToUpgradeStores(StoreFactory.java:113) at org.neo4j.kernel.impl.nioneo.store.StoreFactory.newNeoStore(StoreFactory.java:96) at org.neo4j.kernel.impl.nioneo.xa.NeoStoreXaDataSource.start(NeoStoreXaDataSource.java:240) at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:491) ... 15 more Oct 09, 2013 8:49:15 AM org.neo4j.server.logging.Logger log SEVERE: Failed to start Neo Server on port [7474] 怎么清楚这个？