Neo4j：＆＃34;无法轮换日志异常＆＃34;在关机

时间：2017-08-04 19:12:02

标签： java neo4j shutdown

我有一个neo4j 3.2.1多标签多属性图数据库，它有4M节点，15M边缘和4.8M不同标签，磁盘大小约为6GB。

我使用＆＃34; neo4j-import＆＃34;导入了数据集。使用linux机器的工具。

我可以打开数据集，使用Java API很好地遍历节点，边和它们的描述。但是，一旦我想关闭它，它需要花费很多时间，最后，它给我以下日志文​​件错误：

＆＃13;
＆＃13; 
2017-08-04 07:07:38.189+0000 INFO [o.n.k.i.f.GraphDatabaseFacadeFactory] Shutdown started
2017-08-04 07:07:38.190+0000 INFO [o.n.k.i.f.GraphDatabaseFacadeFactory] Database is now unavailable
2017-08-04 07:07:38.198+0000 INFO [o.n.k.i.t.l.c.CheckPointerImpl] Check Pointing triggered by database shutdown [5399]:  Starting check pointing...
2017-08-04 07:07:38.198+0000 INFO [o.n.k.i.t.l.c.CheckPointerImpl] Check Pointing triggered by database shutdown [5399]:  Starting store flush...
2017-08-04 07:23:35.022+0000 ERROR [o.n.k.i.t.l.c.CheckPointerImpl] Error performing check point Failed to rotate logs. Expected version: 5399, actual version: 5274, wait timeout (ms): 956815
org.neo4j.kernel.impl.store.kvstore.RotationTimeoutException: Failed to rotate logs. Expected version: 5399, actual version: 5274, wait timeout (ms): 956815
	at org.neo4j.kernel.impl.store.kvstore.RotationState$Rotation.rotate(RotationState.java:79)
	at org.neo4j.kernel.impl.store.kvstore.RotationState$Rotation.rotate(RotationState.java:52)
	at org.neo4j.kernel.impl.store.kvstore.AbstractKeyValueStore$RotationTask.rotate(AbstractKeyValueStore.java:311)
	at org.neo4j.kernel.impl.store.kvstore.AbstractKeyValueStore$RotationTask.rotate(AbstractKeyValueStore.java:288)
	at org.neo4j.kernel.impl.store.counts.CountsTracker.rotate(CountsTracker.java:154)
	at org.neo4j.kernel.impl.store.NeoStores.flush(NeoStores.java:242)
	at org.neo4j.kernel.impl.storageengine.impl.recordstorage.RecordStorageEngine.flushAndForce(RecordStorageEngine.java:480)
	at org.neo4j.kernel.impl.transaction.log.checkpoint.CheckPointerImpl.doCheckPoint(CheckPointerImpl.java:160)
	at org.neo4j.kernel.impl.transaction.log.checkpoint.CheckPointerImpl.forceCheckPoint(CheckPointerImpl.java:88)
	at org.neo4j.kernel.NeoStoreDataSource$3.shutdown(NeoStoreDataSource.java:794)
	at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.shutdown(LifeSupport.java:489)
	at org.neo4j.kernel.lifecycle.LifeSupport.shutdown(LifeSupport.java:206)
	at org.neo4j.kernel.NeoStoreDataSource.stop(NeoStoreDataSource.java:766)
	at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.stop(LifeSupport.java:458)
	at org.neo4j.kernel.lifecycle.LifeSupport.stopInstances(LifeSupport.java:161)
	at org.neo4j.kernel.lifecycle.LifeSupport.stop(LifeSupport.java:143)
	at org.neo4j.kernel.impl.transaction.state.DataSourceManager.stop(DataSourceManager.java:120)
	at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.stop(LifeSupport.java:458)
	at org.neo4j.kernel.lifecycle.LifeSupport.stopInstances(LifeSupport.java:161)
	at org.neo4j.kernel.lifecycle.LifeSupport.stop(LifeSupport.java:143)
	at org.neo4j.kernel.lifecycle.LifeSupport.shutdown(LifeSupport.java:191)
	at org.neo4j.kernel.impl.factory.ClassicCoreSPI.shutdown(ClassicCoreSPI.java:159)
	at org.neo4j.kernel.impl.factory.GraphDatabaseFacade.shutdown(GraphDatabaseFacade.java:366)
	at experiment.caseStudy.TestDatasetHealth.run(TestDatasetHealth.java:70)
	at experiment.caseStudy.TestDatasetHealth.main(TestDatasetHealth.java:29)
2017-08-04 07:23:35.665+0000 INFO [o.n.k.i.DiagnosticsManager] --- STOPPING diagnostics START ---
2017-08-04 07:23:35.666+0000 INFO [o.n.k.i.DiagnosticsManager] --- STOPPING diagnostics END ---
＆＃13;
＆＃13;
＆＃13;

在Java本身，我得到以下异常：

Exception in thread "main" org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.NeoStoreDataSource$3@3101ffd3' failed to transition from stopped to shutting_down. Please see the attached cause exception "Failed to rotate logs. Expected version: 5399, actual version: 5274, wait timeout (ms): 956815".
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.shutdown(LifeSupport.java:497)
at org.neo4j.kernel.lifecycle.LifeSupport.shutdown(LifeSupport.java:206)
at org.neo4j.kernel.NeoStoreDataSource.stop(NeoStoreDataSource.java:766)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.stop(LifeSupport.java:458)
at org.neo4j.kernel.lifecycle.LifeSupport.stopInstances(LifeSupport.java:161)
at org.neo4j.kernel.lifecycle.LifeSupport.stop(LifeSupport.java:143)
at org.neo4j.kernel.impl.transaction.state.DataSourceManager.stop(DataSourceManager.java:120)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.stop(LifeSupport.java:458)
at org.neo4j.kernel.lifecycle.LifeSupport.stopInstances(LifeSupport.java:161)
at org.neo4j.kernel.lifecycle.LifeSupport.stop(LifeSupport.java:143)
at org.neo4j.kernel.lifecycle.LifeSupport.shutdown(LifeSupport.java:191)
at org.neo4j.kernel.impl.factory.ClassicCoreSPI.shutdown(ClassicCoreSPI.java:159)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacade.shutdown(GraphDatabaseFacade.java:366)
at experiment.caseStudy.TestDatasetHealth.run(TestDatasetHealth.java:70)
at experiment.caseStudy.TestDatasetHealth.main(TestDatasetHealth.java:29)
Caused by: org.neo4j.kernel.impl.store.kvstore.RotationTimeoutException: Failed to rotate logs. Expected version: 5399, actual version: 5274, wait timeout (ms): 956815
at org.neo4j.kernel.impl.store.kvstore.RotationState$Rotation.rotate(RotationState.java:79)
at org.neo4j.kernel.impl.store.kvstore.RotationState$Rotation.rotate(RotationState.java:52)
at org.neo4j.kernel.impl.store.kvstore.AbstractKeyValueStore$RotationTask.rotate(AbstractKeyValueStore.java:311)
at org.neo4j.kernel.impl.store.kvstore.AbstractKeyValueStore$RotationTask.rotate(AbstractKeyValueStore.java:288)
at org.neo4j.kernel.impl.store.counts.CountsTracker.rotate(CountsTracker.java:154)
at org.neo4j.kernel.impl.store.NeoStores.flush(NeoStores.java:242)
at org.neo4j.kernel.impl.storageengine.impl.recordstorage.RecordStorageEngine.flushAndForce(RecordStorageEngine.java:480)
at org.neo4j.kernel.impl.transaction.log.checkpoint.CheckPointerImpl.doCheckPoint(CheckPointerImpl.java:160)
at org.neo4j.kernel.impl.transaction.log.checkpoint.CheckPointerImpl.forceCheckPoint(CheckPointerImpl.java:88)
at org.neo4j.kernel.NeoStoreDataSource$3.shutdown(NeoStoreDataSource.java:794)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.shutdown(LifeSupport.java:489)

事实上，在Java程序中，我只是阅读信息而不在数据集上写任何内容。

此外，要使用以下代码行打开数据库，在3.1GHz Core i7 MacBook上需要80秒，16GB的Ram和10GB的JVM参数。 对于具有上述尺寸的数据集，花费这么多时间是否正常？

GraphDatabaseService dataGraph = new GraphDatabaseFactory().newEmbeddedDatabase(storeDir);

您能否指导我如何修复数据集以便轻松关闭？

0 个答案:

没有答案
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