我看到'blueprints-neo4j-graph-2.5.0'是使用tinkerpop blueprints api和neo4j graph 1.9.6版的最新发布版本。
关于这个的几个问题:
我知道这个 neo4j 实例将是一个带有社区版本的嵌入式数据库。那正确吗?如果是这样,我如何切换到企业版?
我尝试将其包含为 gradle 依赖项:编译组:'org.neo4j',名称:'neo4j-enterprise',版本:'2.0.1'
但是,我认为“blueprints-neo4j-graph-2.5.0”将获得自己的版本(neo4j 1.9.6)作为依赖项。
是否可以将 neo4j webadmin 控制台与嵌入式版本一起使用?
我尝试将 neo4j.server.properties 中的数据库位置更改为与嵌入式实例配置中给定的位置相同的位置,但我无法同时访问它们。
我在 build.gradle 中进行了此更改。
编译组:'com.tinkerpop.blueprints',名称:'blueprints-neo4j2-graph',版本:'2.5.0'
这选择了 neo4j 2.0.1。
此外,我将 tinkerpopConfig (我正在使用 GraphFactory 打开和关闭图形)更改为 tinkerpop 示例中提到的:
"blueprints.neo4jha.directory" : "C:/data/my-test-model-graph",
"blueprints.graph" : "com.tinkerpop.blueprints.impls.neo4j2.Neo4j2HaGraph",
"blueprints.neo4jha.conf.server_id" : "1",
"blueprints.neo4jha.conf.server" : "localhost:6364",
"blueprints.neo4jha.conf.cluster_server" : "localhost:5002",
"blueprints.neo4jha.conf.initial_hosts" : "localhost:5001,localhost:5002"
现在,当我尝试部署时,我得到一个空图。
正如您所说,HA 实施需要企业版:
我也试过这样做,
compile(group: 'com.tinkerpop.blueprints', name: 'blueprints-neo4j2-graph', version:'2.5.0'){
exclude(module: 'neo4j')
exclude(module: 'neo4j-ha')
exclude(module: 'neo4j-management')
}
compile group: 'org.neo4j', name: 'neo4j-enterprise', version:'2.0.1'
这将获得 neo4j-enterprise-2.0.1。
但这似乎也不起作用,并且无法打开图形实例。
你看到这里有什么奇怪的吗?
java.lang.RuntimeException: GraphFactory could not instantiate this Graph implementation [com.tinkerpop.blueprints.impls.neo4j2.Neo4j2HaGraph].
at com.tinkerpop.blueprints.GraphFactory.open(GraphFactory.java:50) ~[blueprints-core-2.5.0.jar:na]
at com.repo.GraphManager.getGraphDatabase(GraphManager.java:314) [com.repo~repo_module~1.0.0-SNAPSHOT/:na]
at com.repo.GraphManager.start(GraphManager.java:164) [com.repo~repo_module~1.0.0-SNAPSHOT/:na]
at org.vertx.java.platform.Verticle.start(Verticle.java:82) [vertx-platform-2.1M1.jar:na]
at com.englishtown.vertx.hk2.HK2VerticleLoader.start(HK2VerticleLoader.java:77) [com.englishtown~vertx-mod-hk2~1.6.0-SNAPSHOT/:na]
at org.vertx.java.platform.impl.DefaultPlatformManager$19.run(DefaultPlatformManager.java:1551) [vertx-platform-2.1M1.jar:na]
at org.vertx.java.core.impl.DefaultContext$3.run(DefaultContext.java:176) [vertx-core-2.1M1.jar:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_51]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_51]
at java.lang.Thread.run(Thread.java:744) [na:1.7.0_51]
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.7.0_51]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) ~[na:1.7.0_51]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.7.0_51]
at java.lang.reflect.Constructor.newInstance(Constructor.java:526) ~[na:1.7.0_51]
at com.tinkerpop.blueprints.GraphFactory.open(GraphFactory.java:43) ~[blueprints-core-2.5.0.jar:na]
... 9 common frames omitted
Caused by: java.lang.NullPointerException: null
at java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1124) ~[na:1.7.0_51]
at java.util.concurrent.ConcurrentHashMap.putAll(ConcurrentHashMap.java:1162) ~[na:1.7.0_51]
at org.neo4j.kernel.configuration.Config.applyChanges(Config.java:122) ~[neo4j-kernel-2.0.1.jar:2.0.1]
at org.neo4j.kernel.configuration.Config.<init>(Config.java:88) ~[neo4j-kernel-2.0.1.jar:2.0.1]
at org.neo4j.kernel.InternalAbstractGraphDatabase.<init>(InternalAbstractGraphDatabase.java:278) ~[neo4j-kernel-2.0.1.jar:2.0.1]
at org.neo4j.kernel.ha.HighlyAvailableGraphDatabase.<init>(HighlyAvailableGraphDatabase.java:136) ~[neo4j-ha-2.0.1.jar:2.0.1]
at org.neo4j.graphdb.factory.HighlyAvailableGraphDatabaseFactory$1.newDatabase(HighlyAvailableGraphDatabaseFactory.java:47) ~[neo4j-ha-2.0.1.jar:2.0.1]
at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:198) ~[neo4j-kernel-2.0.1.jar:2.0.1]
at com.tinkerpop.blueprints.impls.neo4j2.Neo4j2HaGraph.<init>(Neo4j2HaGraph.java:23) ~[blueprints-neo4j2-graph-2.5.0.jar:na]
at com.tinkerpop.blueprints.impls.neo4j2.Neo4j2HaGraph.<init>(Neo4j2HaGraph.java:31) ~[blueprints-neo4j2-graph-2.5.0.jar:na]
... 14 common frames omitted