Java 加载大型图形时Neo4j内核崩溃

我正在将大量节点和关系加载到嵌入式Neo4j数据库中。大约10000次插入后，它就死了。如果我保持在这一点下，那么一切都很好。查询会像插入一样返回。看起来好像数据库文件在插入的中间被删除了，这导致所有的东西都崩溃了。我的数据库是从头开始构建的，因此，如果我完全删除graphdb文件夹并重新启动它，它每次都会完全相同地运行。那么，如何处理大型嵌入式Neo4j数据库呢

以下是相关的错误

从Java输出端

事务开始时未提交：

WorkerThread exception::org.neo4j.graphdb.TransactionFailureException::Unable to commit transaction
org.neo4j.graphdb.TransactionFailureException: Unable to commit transaction
        at org.neo4j.kernel.TopLevelTransaction.close(TopLevelTransaction.java:140)
        ...
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.neo4j.graphdb.TransactionFailureException: commit threw exception
        at org.neo4j.kernel.impl.transaction.TxManager.commit(TxManager.java:500)
        at org.neo4j.kernel.impl.transaction.TxManager.commit(TxManager.java:385)
        at org.neo4j.kernel.impl.transaction.TransactionImpl.commit(TransactionImpl.java:123)
        at org.neo4j.kernel.TopLevelTransaction.close(TopLevelTransaction.java:124)
        ... 4 more
Caused by: javax.transaction.xa.XAException

然后它通知我数据库中缺少一个文件：

saction.TransactionImpl.doCommit(TransactionImpl.java:560)

at org.neo4j.kernel.impl.transaction.TxManager.commit(TxManager.java:448)
        ... 7 more
Caused by: org.neo4j.kernel.impl.nioneo.store.UnderlyingStorageException: java.io.FileNotFoundException: /home/user/graphdb/schema/label/lucene/_1z6.frq (Protocol error)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.updateLabelScanStore(NeoStoreTransaction.java:814)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.applyCommit(NeoStoreTransaction.java:699)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.doCommit(NeoStoreTransaction.java:631)
        at org.neo4j.kernel.impl.transaction.xaframework.XaTransaction.commit(XaTransaction.java:327)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.commitWriteTx(XaResourceManager.java:632)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.commit(XaResourceManager.java:533)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceHelpImpl.commit(XaResourceHelpImpl.java:64)
        at org.neo4j.kernel.impl.transaction.TransactionImpl.doCommit(TransactionImpl.java:548)
        ... 8 more
Caused by: java.io.FileNotFoundException: /home/user/graphdb/schema/label/lucene/_1z6.frq (Protocol error)
        at java.io.RandomAccessFile.open(Native Method)
        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:241)
        at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:441)
        at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:306)
        at org.apache.lucene.index.FormatPostingsDocsWriter.<init>(FormatPostingsDocsWriter.java:47)
        at org.apache.lucene.index.FormatPostingsTermsWriter.<init>(FormatPostingsTermsWriter.java:33)
        at org.apache.lucene.index.FormatPostingsFieldsWriter.<init>(FormatPostingsFieldsWriter.java:51)
        at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:85)
        at org.apache.lucene.index.TermsHash.flush(TermsHash.java:113)
        at org.apache.lucene.index.DocInverter.flush(DocInverter.java:70)
        at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:60)
        at org.apache.lucene.index.DocumentsWriter.flush(DocumentsWriter.java:581)
        at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3587)
        at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3552)
        at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:450)
        at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:399)
        at org.apache.lucene.index.DirectoryReader.doOpenFromWriter(DirectoryReader.java:413)
        at org.apache.lucene.index.DirectoryReader.doOpenIfChanged(DirectoryReader.java:432)
        at org.apache.lucene.index.DirectoryReader.doOpenIfChanged(DirectoryReader.java:375)
        at org.apache.lucene.index.IndexReader.openIfChanged(IndexReader.java:508)
        at org.apache.lucene.search.SearcherManager.refreshIfNeeded(SearcherManager.java:109)
        at org.apache.lucene.search.SearcherManager.refreshIfNeeded(SearcherManager.java:57)
        at org.apache.lucene.search.ReferenceManager.maybeRefresh(ReferenceManager.java:137)
        at org.neo4j.kernel.api.impl.index.LuceneLabelScanStore.refreshSearcher(LuceneLabelScanStore.java:159)
        at org.neo4j.kernel.api.impl.index.LuceneLabelScanWriter.close(LuceneLabelScanWriter.java:82)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.updateLabelScanStore(NeoStoreTransaction.java:811)
        ... 15 more

saction.TransactionImpl.doCommit（TransactionImpl.java:560）
位于org.neo4j.kernel.impl.transaction.TxManager.commit（TxManager.java:448）
... 还有7个
原因：org.neo4j.kernel.impl.nioneo.store.underlyngstorageexception:java.io.FileNotFoundException:/home/user/graphdb/schema/label/lucene/_1z6.frq（协议错误）
位于org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.updateLabelScanStore（NeoStoreTransaction.java:814）
位于org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.applyCommit（NeoStoreTransaction.java:699）
位于org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.doCommit（NeoStoreTransaction.java:631）
位于org.neo4j.kernel.impl.transaction.xaframework.XaTransaction.commit（XaTransaction.java:327）
位于org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.commitWriteTx（XaResourceManager.java:632）
位于org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.commit（XaResourceManager.java:533）
位于org.neo4j.kernel.impl.transaction.xaframework.XaResourceHelpImpl.commit（XaResourceHelpImpl.java:64）
位于org.neo4j.kernel.impl.transaction.TransactionImpl.doCommit（TransactionImpl.java:548）
... 8个以上
由以下原因引起：java.io.FileNotFoundException:/home/user/graphdb/schema/label/lucene/_1z6.frq（协议错误）
位于java.io.RandomAccessFile.open（本机方法）
位于java.io.RandomAccessFile。（RandomAccessFile.java:241）
在org.apache.lucene.store.FSDirectory$FSIndexOutput.（FSDirectory.java:441）
位于org.apache.lucene.store.FSDirectory.createOutput（FSDirectory.java:306）
位于org.apache.lucene.index.FormatPostingsDocsWriter。（FormatPostingsDocsWriter.java:47）
位于org.apache.lucene.index.FormatPostingsTermsWriter。（FormatPostingsTermsWriter.java:33）
位于org.apache.lucene.index.FormatPostingsFieldsWriter。（FormatPostingsFieldsWriter.java:51）
位于org.apache.lucene.index.FreqProxTermsWriter.flush（FreqProxTermsWriter.java:85）
位于org.apache.lucene.index.TermsHash.flush（TermsHash.java:113）
位于org.apache.lucene.index.DocInverter.flush（DocInverter.java:70）
位于org.apache.lucene.index.DocFieldProcessor.flush（DocFieldProcessor.java:60）
位于org.apache.lucene.index.DocumentsWriter.flush（DocumentsWriter.java:581）
位于org.apache.lucene.index.IndexWriter.doFlush（IndexWriter.java:3587）
位于org.apache.lucene.index.IndexWriter.flush（IndexWriter.java:3552）
位于org.apache.lucene.index.IndexWriter.getReader（IndexWriter.java:450）
位于org.apache.lucene.index.IndexWriter.getReader（IndexWriter.java:399）
在org.apache.lucene.index.DirectoryReader.doOpenFromWriter上（DirectoryReader.java:413）
在org.apache.lucene.index.DirectoryReader.doOpenIfChanged上（DirectoryReader.java:432）
在org.apache.lucene.index.DirectoryReader.doOpenIfChanged上（DirectoryReader.java:375）
位于org.apache.lucene.index.IndexReader.openIfChanged（IndexReader.java:508）
位于org.apache.lucene.search.SearcherManager.refreshIfNeeded（SearcherManager.java:109）
位于org.apache.lucene.search.SearcherManager.refreshIfNeeded（SearcherManager.java:57）
位于org.apache.lucene.search.ReferenceManager.maybeRefresh（ReferenceManager.java:137）
位于org.neo4j.kernel.api.impl.index.LuceneLabelScanStore.refreshSearcher（LuceneLabelScanStore.java:159）
位于org.neo4j.kernel.api.impl.index.LuceneLabelScanWriter.close（LuceneLabelScanWriter.java:82）
位于org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.updateLabelScanStore（NeoStoreTransaction.java:811）
... 还有15个

然后我无法再获得新交易：

WorkerThread exception::org.neo4j.graphdb.TransactionFailureException::Unable to get transaction.
org.neo4j.graphdb.TransactionFailureException: Unable to get transaction.
        at org.neo4j.kernel.InternalAbstractGraphDatabase.transactionRunning(InternalAbstractGraphDatabase.java:1064)
        at org.neo4j.kernel.InternalAbstractGraphDatabase.beginTx(InternalAbstractGraphDatabase.java:1037)
        at org.neo4j.kernel.TransactionBuilderImpl.begin(TransactionBuilderImpl.java:43)
        at org.neo4j.kernel.InternalAbstractGraphDatabase.beginTx(InternalAbstractGraphDatabase.java:1024)
        ...
        at java.lang.Thread.run(Thread.java:745)
Caused by: javax.transaction.SystemException: Kernel has encountered some problem, please perform neccesary action (tx recovery/restart)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at org.neo4j.kernel.impl.transaction.KernelHealth.assertHealthy(KernelHealth.java:61)
        at org.neo4j.kernel.impl.transaction.TxManager.assertTmOk(TxManager.java:339)
        at org.neo4j.kernel.impl.transaction.TxManager.getTransaction(TxManager.java:725)
        at org.neo4j.kernel.InternalAbstractGraphDatabase.transactionRunning(InternalAbstractGraphDatabase.java:1060)
        ... 7 more
Caused by: javax.transaction.xa.XAException
        at org.neo4j.kernel.impl.transaction.TransactionImpl.doCommit(TransactionImpl.java:560)
        at org.neo4j.kernel.impl.transaction.TxManager.commit(TxManager.java:448)
        at org.neo4j.kernel.impl.transaction.TxManager.commit(TxManager.java:385)
        at org.neo4j.kernel.impl.transaction.TransactionImpl.commit(TransactionImpl.java:123)
        at org.neo4j.kernel.TopLevelTransaction.close(TopLevelTransaction.java:124)
        ... 4 more
Caused by: org.neo4j.kernel.impl.nioneo.store.UnderlyingStorageException: java.io.FileNotFoundException: /home/user/graphdb/schema/label/lucene/_1z6.frq (Protocol error)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.updateLabelScanStore(NeoStoreTransaction.java:814)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.applyCommit(NeoStoreTransaction.java:699)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.doCommit(NeoStoreTransaction.java:631)
        at org.neo4j.kernel.impl.transaction.xaframework.XaTransaction.commit(XaTransaction.java:327)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.commitWriteTx(XaResourceManager.java:632)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.commit(XaResourceManager.java:533)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceHelpImpl.commit(XaResourceHelpImpl.java:64)
        at org.neo4j.kernel.impl.transaction.TransactionImpl.doCommit(TransactionImpl.java:548)
        ... 8 more
Caused by: java.io.FileNotFoundException: /home/user/graphdb/schema/label/lucene/_1z6.frq (Protocol error)
        at java.io.RandomAccessFile.open(Native Method)
        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:241)
        at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:441)
        at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:306)
        at org.apache.lucene.index.FormatPostingsDocsWriter.<init>(FormatPostingsDocsWriter.java:47)
        at org.apache.lucene.index.FormatPostingsTermsWriter.<init>(FormatPostingsTermsWriter.java:33)
        at org.apache.lucene.index.FormatPostingsFieldsWriter.<init>(FormatPostingsFieldsWriter.java:51)
        at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:85)
        at org.apache.lucene.index.TermsHash.flush(TermsHash.java:113)
        at org.apache.lucene.index.DocInverter.flush(DocInverter.java:70)
        at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:60)
        at org.apache.lucene.index.DocumentsWriter.flush(DocumentsWriter.java:581)
        at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3587)
        at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3552)
        at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:450)
        at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:399)
        at org.apache.lucene.index.DirectoryReader.doOpenFromWriter(DirectoryReader.java:413)
        at org.apache.lucene.index.DirectoryReader.doOpenIfChanged(DirectoryReader.java:432)
        at org.apache.lucene.index.DirectoryReader.doOpenIfChanged(DirectoryReader.java:375)
        at org.apache.lucene.index.IndexReader.openIfChanged(IndexReader.java:508)
        at org.apache.lucene.search.SearcherManager.refreshIfNeeded(SearcherManager.java:109)
        at org.apache.lucene.search.SearcherManager.refreshIfNeeded(SearcherManager.java:57)
        at org.apache.lucene.search.ReferenceManager.maybeRefresh(ReferenceManager.java:137)
        at org.neo4j.kernel.api.impl.index.LuceneLabelScanStore.refreshSearcher(LuceneLabelScanStore.java:159)
        at org.neo4j.kernel.api.impl.index.LuceneLabelScanWriter.close(LuceneLabelScanWriter.java:82)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.updateLabelScanStore(NeoStoreTransaction.java:811)
        ... 15 more

WorkerThread exception:：org.neo4j.graphdb.TransactionFailureException:：无法获取事务。
org.neo4j.graphdb.TransactionFailureException:无法获取事务。
位于org.neo4j.kernel.InternalAbstractGraphDatabase.transactionRunning（InternalAbstractGraphDatabase.java:1064）
位于org.neo4j.kernel.InternalAbstractGraphDatabase.beginTx（InternalAbstractGraphDatabase.java:1037）
位于org.neo4j.kernel.TransactionBuilderImpl.begin（TransactionBuilderImpl.java:43）
位于org.neo4j.kernel.InternalAbstractGraphDatabase.beginTx（InternalAbstractGraphDatabase.java:1024）
...
运行（Thread.java:745）
原因：javax.transaction.SystemException:内核遇到一些问题，请执行必要的操作（tx恢复/重新启动）
位于sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）
位于sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:57）
在sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45）
位于java.lang.reflect.Constructor.newInstance（Constructor.java:526）
位于org.neo4j.kernel.impl.transaction.KernelHealth.assertHealthy（KernelHealth.java:61）
位于org.neo4j.kernel.impl.transaction.TxManager.assertTmOk（TxManager.java:339）
位于org.neo4j.kernel.impl.transaction.TxManager.getTransaction（TxManager.java:725）
位于org.neo4j.kernel.InternalAbstractGraphDatabase.transactionRunning（InternalAbstractGraphData
2015-01-27 21:51:29.112+0000 ERROR [org.neo4j]: [/home/user/graphdb/neostore.nodestore.db] Unable to memory map Unable to map pos=0 recordSize=15 totalSize=1048575
org.neo4j.kernel.impl.nioneo.store.MappedMemException: Unable to map pos=0 recordSize=15 totalSize=1048575
        at org.neo4j.kernel.impl.nioneo.store.MappedPersistenceWindow.<init>(MappedPersistenceWindow.java:59)
        at org.neo4j.kernel.impl.nioneo.store.PersistenceWindowPool.allocateNewWindow(PersistenceWindowPool.java:656)
        at org.neo4j.kernel.impl.nioneo.store.PersistenceWindowPool.expandBricks(PersistenceWindowPool.java:617)
        at org.neo4j.kernel.impl.nioneo.store.PersistenceWindowPool.acquire(PersistenceWindowPool.java:144)
        at org.neo4j.kernel.impl.nioneo.store.CommonAbstractStore.acquireWindow(CommonAbstractStore.java:546)
        at org.neo4j.kernel.impl.nioneo.store.NodeStore.forceGetRecord(NodeStore.java:149)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreIndexStoreView$NodeStoreScan.run(NeoStoreIndexStoreView.java:327)
        at org.neo4j.kernel.impl.api.index.IndexPopulationJob.indexAllNodes(IndexPopulationJob.java:212)
        at org.neo4j.kernel.impl.api.index.IndexPopulationJob.run(IndexPopulationJob.java:107)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Invalid argument
        at sun.nio.ch.FileChannelImpl.map0(Native Method)
        at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:875)
        at org.neo4j.kernel.impl.nioneo.store.StoreFileChannel.map(StoreFileChannel.java:57)
        at org.neo4j.kernel.impl.nioneo.store.MappedPersistenceWindow.<init>(MappedPersistenceWindow.java:53)
        ... 13 more

2015-01-27 21:59:41.516+0000 ERROR [org.neo4j]: setting TM not OK. Kernel has encountered some problem, please perform neccesary action (tx recovery/restart) null
javax.transaction.xa.XAException
        at org.neo4j.kernel.impl.transaction.TransactionImpl.doCommit(TransactionImpl.java:560)
        at org.neo4j.kernel.impl.transaction.TxManager.commit(TxManager.java:448)
        at org.neo4j.kernel.impl.transaction.TxManager.commit(TxManager.java:385)
        at org.neo4j.kernel.impl.transaction.TransactionImpl.commit(TransactionImpl.java:123)
        at org.neo4j.kernel.TopLevelTransaction.close(TopLevelTransaction.java:124)
        ...
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.neo4j.kernel.impl.nioneo.store.UnderlyingStorageException: java.io.FileNotFoundException: /home/user/graphdb/schema/label/lucene/_1z6.frq (Protocol error)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.updateLabelScanStore(NeoStoreTransaction.java:814)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.applyCommit(NeoStoreTransaction.java:699)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.doCommit(NeoStoreTransaction.java:631)
        at org.neo4j.kernel.impl.transaction.xaframework.XaTransaction.commit(XaTransaction.java:327)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.commitWriteTx(XaResourceManager.java:632)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceManager.commit(XaResourceManager.java:533)
        at org.neo4j.kernel.impl.transaction.xaframework.XaResourceHelpImpl.commit(XaResourceHelpImpl.java:64)
        at org.neo4j.kernel.impl.transaction.TransactionImpl.doCommit(TransactionImpl.java:548)
        ... 8 more
Caused by: java.io.FileNotFoundException: /home/user/graphdb/schema/label/lucene/_1z6.frq (Protocol error)
        at java.io.RandomAccessFile.open(Native Method)
        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:241)
        at org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:441)
        at org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:306)
        at org.apache.lucene.index.FormatPostingsDocsWriter.<init>(FormatPostingsDocsWriter.java:47)
        at org.apache.lucene.index.FormatPostingsTermsWriter.<init>(FormatPostingsTermsWriter.java:33)
        at org.apache.lucene.index.FormatPostingsFieldsWriter.<init>(FormatPostingsFieldsWriter.java:51)
        at org.apache.lucene.index.FreqProxTermsWriter.flush(FreqProxTermsWriter.java:85)
        at org.apache.lucene.index.TermsHash.flush(TermsHash.java:113)
        at org.apache.lucene.index.DocInverter.flush(DocInverter.java:70)
        at org.apache.lucene.index.DocFieldProcessor.flush(DocFieldProcessor.java:60)
        at org.apache.lucene.index.DocumentsWriter.flush(DocumentsWriter.java:581)
        at org.apache.lucene.index.IndexWriter.doFlush(IndexWriter.java:3587)
        at org.apache.lucene.index.IndexWriter.flush(IndexWriter.java:3552)
        at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:450)
        at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:399)
        at org.apache.lucene.index.DirectoryReader.doOpenFromWriter(DirectoryReader.java:413)
        at org.apache.lucene.index.DirectoryReader.doOpenIfChanged(DirectoryReader.java:432)
        at org.apache.lucene.index.DirectoryReader.doOpenIfChanged(DirectoryReader.java:375)
        at org.apache.lucene.index.IndexReader.openIfChanged(IndexReader.java:508)
        at org.apache.lucene.search.SearcherManager.refreshIfNeeded(SearcherManager.java:109)
        at org.apache.lucene.search.SearcherManager.refreshIfNeeded(SearcherManager.java:57)
        at org.apache.lucene.search.ReferenceManager.maybeRefresh(ReferenceManager.java:137)
        at org.neo4j.kernel.api.impl.index.LuceneLabelScanStore.refreshSearcher(LuceneLabelScanStore.java:159)
        at org.neo4j.kernel.api.impl.index.LuceneLabelScanWriter.close(LuceneLabelScanWriter.java:82)
        at org.neo4j.kernel.impl.nioneo.xa.NeoStoreTransaction.updateLabelScanStore(NeoStoreTransaction.java:811)
        ... 15 more
2015-01-27 21:59:41.519+0000 ERROR [org.neo4j]: TM error tx commit commit threw exception