我正在使用Titan/HBase存储我的数据，而HBase则位于远程服务器计算机中。我使用bin/titan.sh start启动了Gremlin Server。之后，我在服务器计算机上运行了以下命令，该命令正常：
bin/gremlin.sh
,,,/
(o o)
-----oOOo-(3)-oOOo-----
plugin activated: aurelius.titan
plugin activated: tinkerpop.server
plugin activated: tinkerpop.utilities
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/local/titan-1.0.0-hadoop1/lib/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/local/titan-1.0.0-hadoop1/lib/logback-classic-1.1.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
18:32:20 INFO org.apache.tinkerpop.gremlin.hadoop.structure.HadoopGraph - HADOOP_GREMLIN_LIBS is set to: /usr/local/titan-1.0.0-hadoop1/lib
plugin activated: tinkerpop.hadoop
plugin activated: tinkerpop.tinkergraph
gremlin> g = TitanFactory.open("conf/titan-hbase.properties")
==>standardtitangraph[hbase:[192.168.1.65]]
gremlin> gr = g.traversal()
==>graphtraversalsource[standardtitangraph[hbase:[192.168.1.65]], standard]
gremlin> gr.V().count()
18:33:37 WARN com.thinkaurelius.titan.graphdb.transaction.StandardTitanTx - Query requires iterating over all vertices [()]. For better performance, use indexes
==>41
现在要检查远程连接，我只是从客户端计算机运行gremlin.sh并运行
gremlin> :remote connect tinkerpop.server conf/remote.yaml
g=TitanFactory.open("conf/titan-hbase.properties")
我得到以下内容：
java.lang.RuntimeException: com.thinkaurelius.titan.diskstorage.TemporaryBackendException: Temporary failure in storage backend
at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getDeployment(HBaseStoreManager.java:351)
at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getFeatures(HBaseStoreManager.java:389)
at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.<init>(GraphDatabaseConfiguration.java:1321)
at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:94)
at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.tinkerpop.gremlin.structure.util.GraphFactory.open(GraphFactory.java:78)
at org.apache.tinkerpop.gremlin.structure.util.GraphFactory.open(GraphFactory.java:70)
at org.apache.tinkerpop.gremlin.structure.util.GraphFactory.open(GraphFactory.java:104)
at org.apache.tinkerpop.gremlin.server.GraphManager.lambda$new$27(GraphManager.java:50)
at java.util.LinkedHashMap$LinkedEntrySet.forEach(LinkedHashMap.java:663)
at org.apache.tinkerpop.gremlin.server.GraphManager.<init>(GraphManager.java:48)
at org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor.<init>(ServerGremlinExecutor.java:94)
at org.apache.tinkerpop.gremlin.server.GremlinServer.<init>(GremlinServer.java:88)
at pluradj.titan.tinkerpop3.example.ServiceTest.startServer(ServiceTest.java:37)
at pluradj.titan.tinkerpop3.example.ServiceTest.setUp(ServiceTest.java:29)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: com.thinkaurelius.titan.diskstorage.TemporaryBackendException: Temporary failure in storage backend
at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureTableExists(HBaseStoreManager.java:759)
at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getLocalKeyPartition(HBaseStoreManager.java:556)
at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.getDeployment(HBaseStoreManager.java:347)
... 43 more
Caused by: org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=35, exceptions:
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:129)
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:90)
at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:264)
at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:169)
at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:164)
at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:107)
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:736)
at org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:539)
at org.apache.hadoop.hbase.catalog.MetaReader.tableExists(MetaReader.java:310)
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:279)
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:293)
at com.thinkaurelius.titan.diskstorage.hbase.HBaseAdmin0_98.tableExists(HBaseAdmin0_98.java:93)
at com.thinkaurelius.titan.diskstorage.hbase.HBaseStoreManager.ensureTableExists(HBaseStoreManager.java:753)
... 45 more
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:511)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:481)
at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupConnection(RpcClient.java:578)
at org.apache.hadoop.hbase.ipc.RpcClient$Connection.setupIOstreams(RpcClient.java:866)
at org.apache.hadoop.hbase.ipc.RpcClient.getConnection(RpcClient.java:1536)
at org.apache.hadoop.hbase.ipc.RpcClient.call(RpcClient.java:1435)
at org.apache.hadoop.hbase.ipc.RpcClient.callBlockingMethod(RpcClient.java:1654)
at org.apache.hadoop.hbase.ipc.RpcClient$BlockingRpcChannelImplementation.callBlockingMethod(RpcClient.java:1712)
at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.scan(ClientProtos.java:29900)
at org.apache.hadoop.hbase.client.ScannerCallable.openScanner(ScannerCallable.java:302)
at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:157)
at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:57)
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:114)
... 57 more
我的泰坦 - hbase.properties是：
storage.backend=hbase
storage.hostname=192.168.1.65
cache.db-cache-time = 180000
cache.db-cache = true
cache.db-cache-clean-wait = 20
cache.db-cache-size = 0.5
gremlin.graph=com.thinkaurelius.titan.core.TtanFactory
storage.hbase.tablename = titan
和远程yaml是：
hosts: [192.168.1.65]
port: 8182
serializer: { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { serializeResultToString: true }}
这里出了什么问题？我该如何完成？
您需要做的是将Gremlin Server配置使用Titan-Hbase属性。您不应在这种情况下完全使用titan.sh，因为它会自动启动Cassandra和Elasticsearch节点，因此请确保在继续之前使用bin/titan.sh stop关闭。
-
将
titan-hbase.properties放在conf/gremlin-server/下。您上面发布的内容看起来不错，除了最后一个属性名称应为storage.hbase.table。 -
使用泰坦-HBase配置在
conf/gremlin-server/下更新gremlin-server.yaml(默认配置使用Cassandra Elasticsearch(。另外，请记住，如果要从其他计算机连接到Gremlin服务器，则需要将host更新为服务器的IP地址192.168.1.65。图形：{图形：conf/gremlin-server/titan-hbase.properties}
-
使用
bin/gremlin-server.sh启动Gremlin服务器。观看日志以获取启动时的错误。如果成功，您应该看到一条信息消息，说graph和g已配置并绑定。g在scripts/empty-sample.groovy脚本中定义，该脚本通过conf/gremlin-server.yaml加载。8456 [main] INFO org.apache.tinkerpop.gremlin.server.GremlinServer - Graph [graph] was successfully configured via [conf/gremlin-server/titan-hbase.properties]. 9349 [main] INFO org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor - A GraphTraversalSource is now bound to [g] with graphtraversalsource[standardtitangraph[hbase:[127.0.0.1]], standard] -
启动Gremlin控制台，并使用
conf/remote.yaml与Gremlin Server创建远程连接。由于graph和g已经通过服务器配置绑定，因此您无需在控制台中初始化它们。确保在查询开始时使用:>将命令发送到远程服务器。
这是一个示例Gremlin控制台会话：
gremlin> :remote connect tinkerpop.server conf/remote.yaml
==>Connected - localhost/127.0.0.1:8182
gremlin> :> g.V().count()
==>12
请参阅Apache -TinkerPop文档，用于从Gremlin控制台连接到Gremlin服务器。