I tried updating from Neo4j 2.3 to 3.0.1. I can start up the database as a service, no problem there.
But when I try to build a Neo4j executable and run it, I find a bug which I cannot resolve. Under Neo4j 2.x I can build executables fine. Below is my main method:
public class StartDB {
public static void main(String[] args) {
new GraphDatabaseFactory()
.newEmbeddedDatabaseBuilder(Paths.get(args[0]).toFile())
.loadPropertiesFromFile(args[1])
.newGraphDatabase();
}
}
I have a simple POM with 1 dependency:
<dependencies>
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j</artifactId>
<version>3.0.1</version>
</dependency>
</dependencies>
The command line arguments are the paths to my DB and config respectively. Below is the stacktrace from this graph instantiation error.
Exception in thread "main" java.lang.RuntimeException: Error starting org.neo4j.kernel.impl.factory.CommunityFacadeFactory, /home/glemmon/UPDB/data/neo4j-3.0.1/data/databases/graph.db
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:144)
at org.neo4j.kernel.impl.factory.CommunityFacadeFactory.initFacade(CommunityFacadeFactory.java:40)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacadeFactory.newFacade(GraphDatabaseFacadeFactory.java:108)
at org.neo4j.graphdb.factory.GraphDatabaseFactory.newDatabase(GraphDatabaseFactory.java:99)
at org.neo4j.graphdb.factory.GraphDatabaseFactory.lambda$createDatabaseCreator$206(GraphDatabaseFactory.java:88)
at org.neo4j.graphdb.factory.GraphDatabaseFactory$$Lambda$1/1313922862.newDatabase(Unknown Source)
at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:183)
at test.StartDB.main(StartDB.java:11)
Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component 'org.neo4j.kernel.impl.storageengine.impl.recordstorage.RecordStorageEngine@5483163c' failed to initialize. Please see attached cause exception.
at org.neo4j.kernel.lifecycle.LifeSupport$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:502)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.start(LifeSupport.java:433)
at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:107)
at org.neo4j.kernel.impl.transaction.state.DataSourceManager.start(DataSourceManager.java:99)
at org.neo4j.kernel.lifecycle.LifeSupport$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:140)
... 7 more
Caused by: java.lang.IllegalArgumentException: An SPI class of type org.apache.lucene.codecs.PostingsFormat with name 'BlockTreeOrds' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath. The current classpath supports the following names: [Lucene50]
at org.apache.lucene.util.NamedSPILoader.lookup(NamedSPILoader.java:114)
at org.apache.lucene.codecs.PostingsFormat.forName(PostingsFormat.java:112)
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat$FieldsReader.<init>(PerFieldPostingsFormat.java:258)
at org.apache.lucene.codecs.perfield.PerFieldPostingsFormat.fieldsProducer(PerFieldPostingsFormat.java:341)
at org.apache.lucene.index.SegmentCoreReaders.<init>(SegmentCoreReaders.java:104)
at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:65)
at org.apache.lucene.index.ReadersAndUpdates.getReader(ReadersAndUpdates.java:145)
at org.apache.lucene.index.ReadersAndUpdates.getReadOnlyClone(ReadersAndUpdates.java:197)
at org.apache.lucene.index.StandardDirectoryReader.open(StandardDirectoryReader.java:99)
at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:435)
at org.apache.lucene.index.DirectoryReader.open(DirectoryReader.java:100)
at org.apache.lucene.search.SearcherManager.<init>(SearcherManager.java:106)
at org.apache.lucene.search.SearcherManager.<init>(SearcherManager.java:76)
at org.neo4j.kernel.api.impl.index.partition.IndexPartition.<init>(IndexPartition.java:54)
at org.neo4j.kernel.api.impl.index.AbstractLuceneIndex.open(AbstractLuceneIndex.java:101)
at org.neo4j.kernel.api.impl.schema.LuceneSchemaIndexProvider.indexIsOnline(LuceneSchemaIndexProvider.java:178)
at org.neo4j.kernel.api.impl.schema.LuceneSchemaIndexProvider.getInitialState(LuceneSchemaIndexProvider.java:123)
at org.neo4j.kernel.impl.api.index.IndexingService.init(IndexingService.java:200)
at org.neo4j.kernel.impl.storageengine.impl.recordstorage.RecordStorageEngine.init(RecordStorageEngine.java:403)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:405)
... 16 more
Since I can start the DB as a service using "bin/neo4j", I thought there must be a discrepancy between the files under /neo4j-community/3.0.1/lib and the files Maven is providing. I've tried running my executable with java -cp "/neo4j-community/3.0.1/lib/*" to no avail. Any help would be appreciated.
