我是泰坦世界的新人。我想将存储在GraphML文件中的数据导入数据库。
在Gremlin控制台中，我写道：
:remote connect tinkerpop.server ../conf/remote.yaml
接下来，我写道：
graph.io(IoCore.graphml()).readGraph("/tmp/file.graphml")
我收到了消息： 没有这样的属性：类的图形：groovysh_evaluate
你能帮帮我吗？
IMO是来自gremlin-server.log的最有趣的日志：
84 [main] INFO org.apache.tinkerpop.gremlin.server.GremlinServer - Configuring Gremlin Server from conf/gremlin-server/gremlin-server.yaml 158 [main] INFO org.apache.tinkerpop.gremlin.server.util.MetricManager - Configured Metrics ConsoleReporter configured with report interval=180000ms 160 [main] INFO org.apache.tinkerpop.gremlin.server.util.MetricManager - Configured Metrics CsvReporter configured with report interval=180000ms to fileName=/tmp/gremlin-server-metrics.csv 196 [main] INFO org.apache.tinkerpop.gremlin.server.util.MetricManager - Configured Metrics JmxReporter configured with domain= and agentId= 197 [main] INFO org.apache.tinkerpop.gremlin.server.util.MetricManager - Configured Metrics Slf4jReporter configured with interval=180000ms and loggerName=org.apache.tinkerpop.gremlin.server.Settings$Slf4jReporterMetrics 1111 [main] WARN org.apache.tinkerpop.gremlin.server.GremlinServer - Graph [graph] configured at [conf/gremlin-server/titan-berkeleyje-server.properties] could not be instantiated and will not be available in Gremlin Server. GraphFactory message: GraphFactory could not instantiate this Graph implementation [class com.thinkaurelius.titan.core.TitanFactory] java.lang.RuntimeException: GraphFactory could not instantiate this Graph implementation [class com.thinkaurelius.titan.core.TitanFactory] ... 1113 [main] INFO org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor - Initialized Gremlin thread pool. Threads in pool named with pattern gremlin-* 1499 [main] INFO org.apache.tinkerpop.gremlin.groovy.engine.ScriptEngines - Loaded nashorn ScriptEngine 2044 [main] INFO org.apache.tinkerpop.gremlin.groovy.engine.ScriptEngines - Loaded gremlin-groovy ScriptEngine 2488 [main] WARN org.apache.tinkerpop.gremlin.groovy.engine.GremlinExecutor - Could not initialize gremlin-groovy ScriptEngine with scripts/empty-sample.groovy as script could not be evaluated - javax.script.ScriptException: groovy.lang.MissingPropertyException: No such property: graph for class: Script1 2488 [main] INFO org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor - Initialized GremlinExecutor and configured ScriptEngines. 2581 [main] WARN org.apache.tinkerpop.gremlin.server.AbstractChannelizer - Could not instantiate configured serializer class - org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0 - it will not be available. There is no graph named [graph] configured to be used in the useMapperFromGraph setting 2582 [main] INFO org.apache.tinkerpop.gremlin.server.AbstractChannelizer - Configured application/vnd.gremlin-v1.0+gryo-stringd with org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0 2719 [main] WARN org.apache.tinkerpop.gremlin.server.AbstractChannelizer - Could not instantiate configured serializer class - org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV1d0 - it will not be available. There is no graph named [graph] configured to be used in the useMapperFromGraph setting 2720 [main] WARN org.apache.tinkerpop.gremlin.server.AbstractChannelizer - Could not instantiate configured serializer class - org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV1d0 - it will not be available. There is no graph named [graph] configured to be used in the useMapperFromGraph setting ...
答案 0 :(得分：1)
您需要创建图表。 graph关键字未在脚本中的任何位置声明。
答案 1 :(得分：1)
Titan Server documentation简要介绍了这一点，但很容易被忽视。
：＆gt;是＆＃34;提交＆＃34;将该行上的Gremlin发送到当前活动的遥控器的命令。
在步骤5中，您需要将脚本命令提交到远程服务器。在Gremlin控制台中，您可以通过:submit或:>启动命令来实现此目的。
:> graph.io(IoCore.graphml()).readGraph("/tmp/file.graphml")
如果您未将脚本提交到远程服务器，Gremlin控制台将尝试在控制台的JVM中处理脚本。 graph未在本地定义，这就是您在步骤6中看到错误的原因。
更新：根据您的gremlin-server.log，问题是，使用./bin/titan.sh start启动Titan的用户没有相应的文件权限来创建目录（{{1} }）默认图形配置（db/berkeley）使用。尝试更新titan-berkeleyje-server.properties目录上的文件权限。