python-3.x - Graph Factory 找不到 gremlin.graph 属性配置

Question

总结

尝试使用 origindb GraphFactory 消息启动 gremlin 服务器时:GraphFactory 找不到 [org.apache.tinkerpop.gremlin.orientdb.OrientEmbeddedFactory] 错误

详情

我正在使用以下配置

Gremlin:apache-tinkerpop-gremlin-server-3.3.1

东方数据库:orientdb-tp3-3.0.2

要下载 jar 文件，请使用 bin/gremlin-server.sh -i com.orientechnologies orientdb-gremlin 3.0.2

gremlinpython : 3.3.0

gremlin-server-orientdb.yaml 文件

host: localhost
port: 8182
scriptEvaluationTimeout: 30000
channelizer: org.apache.tinkerpop.gremlin.server.channel.WebSocketChannelizer
graphs: {
  graph : conf/orientdb-empty.properties
}
scriptEngines: {
  gremlin-groovy: {
    plugins: { org.apache.tinkerpop.gremlin.server.jsr223.GremlinServerGremlinPlugin: {},
               org.apache.tinkerpop.gremlin.orientdb.jsr223.OrientDBGremlinPlugin: {},
               org.apache.tinkerpop.gremlin.jsr223.ImportGremlinPlugin: {classImports: [java.lang.Math], methodImports: [java.lang.Math#*]},
               org.apache.tinkerpop.gremlin.jsr223.ScriptFileGremlinPlugin: {files: [../config/demodb.groovy]}}}}
serializers:
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { ioRegistries: [org.apache.tinkerpop.gremlin.orientdb.io.OrientIoRegistry] }}             # application/vnd.gremlin-v3.0+gryo
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { serializeResultToString: true }}                                                                       # application/vnd.gremlin-v3.0+gryo-stringd
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV3d0, config: { ioRegistries: [org.apache.tinkerpop.gremlin.orientdb.io.OrientIoRegistry] }}         # application/json
processors:
  - { className: org.apache.tinkerpop.gremlin.server.op.session.SessionOpProcessor, config: { sessionTimeout: 28800000 }}
  - { className: org.apache.tinkerpop.gremlin.server.op.traversal.TraversalOpProcessor, config: { cacheExpirationTime: 600000, cacheMaxSize: 1000 }}
metrics: {
  consoleReporter: {enabled: true, interval: 180000},
  csvReporter: {enabled: true, interval: 180000, fileName: /tmp/gremlin-server-metrics.csv},
  jmxReporter: {enabled: true},
  slf4jReporter: {enabled: true, interval: 180000}}
strictTransactionManagement: false
maxInitialLineLength: 4096
maxHeaderSize: 8192
maxChunkSize: 8192
maxContentLength: 65536
maxAccumulationBufferComponents: 1024
resultIterationBatchSize: 64
writeBufferLowWaterMark: 32768
writeBufferHighWaterMark: 65536
authentication: {
  authenticator: com.orientechnologies.tinkerpop.server.auth.OGremlinServerAuthenticator
    }
ssl: {
  enabled: false} 

orientdb-empty.properties 文件

gremlin.graph=org.apache.tinkerpop.gremlin.orientdb.OrientEmbeddedFactory

也试过这个

gremlin.graph=org.apache.tinkerpop.gremlin.orientdb.OrientGraph

堆栈跟踪

admin-12@admin:~/Documents/apache-tinkerpop-gremlin-server-3.3.1/bin$ ./gremlin-server.sh conf/gremlin-server-orientdb.yaml
[INFO] GremlinServer - 
         \,,,/
         (o o)
-----oOOo-(3)-oOOo-----

[INFO] GremlinServer - Configuring Gremlin Server from conf/gremlin-server-orientdb.yaml
[INFO] MetricManager - Configured Metrics ConsoleReporter configured with report interval=180000ms
[INFO] MetricManager - Configured Metrics CsvReporter configured with report interval=180000ms to fileName=/tmp/gremlin-server-metrics.csv
[INFO] MetricManager - Configured Metrics JmxReporter configured with domain= and agentId=
[INFO] MetricManager - Configured Metrics Slf4jReporter configured with interval=180000ms and loggerName=org.apache.tinkerpop.gremlin.server.Settings$Slf4jReporterMetrics
[WARN] DefaultGraphManager - Graph [graph] configured at [conf/orientdb-empty.properties] could not be instantiated and will not be available in Gremlin Server.  GraphFactory message: GraphFactory could not find [org.apache.tinkerpop.gremlin.orientdb.OrientEmbeddedFactory] - Ensure that the jar is in the classpath
java.lang.RuntimeException: GraphFactory could not find [org.apache.tinkerpop.gremlin.orientdb.OrientEmbeddedFactory] - Ensure that the jar is in the classpath
    at org.apache.tinkerpop.gremlin.structure.util.GraphFactory.open(GraphFactory.java:63)
    at org.apache.tinkerpop.gremlin.structure.util.GraphFactory.open(GraphFactory.java:104)
    at org.apache.tinkerpop.gremlin.server.util.DefaultGraphManager.lambda$new$0(DefaultGraphManager.java:57)
    at java.util.LinkedHashMap$LinkedEntrySet.forEach(LinkedHashMap.java:671)
    at org.apache.tinkerpop.gremlin.server.util.DefaultGraphManager.<init>(DefaultGraphManager.java:55)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor.<init>(ServerGremlinExecutor.java:80)
    at org.apache.tinkerpop.gremlin.server.GremlinServer.<init>(GremlinServer.java:111)
    at org.apache.tinkerpop.gremlin.server.GremlinServer.main(GremlinServer.java:325)
[INFO] ServerGremlinExecutor - Initialized Gremlin thread pool.  Threads in pool named with pattern gremlin-*
Exception in thread "main" java.lang.IllegalStateException: java.lang.reflect.InvocationTargetException
    at org.apache.tinkerpop.gremlin.groovy.engine.GremlinExecutor.initializeGremlinScriptEngineManager(GremlinExecutor.java:448)
    at org.apache.tinkerpop.gremlin.groovy.engine.GremlinExecutor.<init>(GremlinExecutor.java:105)
    at org.apache.tinkerpop.gremlin.groovy.engine.GremlinExecutor.<init>(GremlinExecutor.java:74)
    at org.apache.tinkerpop.gremlin.groovy.engine.GremlinExecutor$Builder.create(GremlinExecutor.java:590)
    at org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor.<init>(ServerGremlinExecutor.java:128)
    at org.apache.tinkerpop.gremlin.server.GremlinServer.<init>(GremlinServer.java:111)
    at org.apache.tinkerpop.gremlin.server.GremlinServer.main(GremlinServer.java:325

已更新

[WARN] Slf4JLogger - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
java.lang.NullPointerException
    at com.orientechnologies.tinkerpop.server.auth.OGremlinServerAuthenticator.authenticate(OGremlinServerAuthenticator.java:34)
    at org.apache.tinkerpop.gremlin.server.auth.SimpleAuthenticator$PlainTextSaslAuthenticator.getAuthenticatedUser(SimpleAuthenticator.java:143)
    at org.apache.tinkerpop.gremlin.server.handler.SaslAuthenticationHandler.channelRead(SaslAuthenticationHandler.java:103)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)
    at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:356)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:335)

Answer 1

您正在混合使用许多不同的版本，因此很难说什么会起作用。首先，TinkerPop 建议大家尽量将服务端的版本与客户端的版本进行匹配。所以这意味着如果你在服务器上使用 3.3.1 那么你应该尝试使用客户端的 3.3.1(在你的情况下是 gremlin-python)。接下来，您将 orientdb-gremlin 与 3.0.2 一起使用，它似乎绑定(bind)到 TinkerPop 3.3.0，

https://github.com/orientechnologies/orientdb-gremlin/blob/3.0.2/driver/pom.xml

这意味着为了获得最佳结果，您应该在 Gremlin Server 和 gremlin-python 上使用 3.3.0。现在，虽然我提到了关于“匹配版本”的所有这些，但我会说可以混合版本，但是匹配将有助于限制可能出错的事情，因为你刚刚开始，所以我鼓励你从那里开始.

至于你的错误，我认为你安装了错误的依赖项。你应该做的:

bin/gremlin-server.sh -i com.orientechnologies orientdb-gremlin-server 3.0.2

因为 orientdb-gremlin-server 将引入 OrientEmbeddedFactory 以及 orientdb-gremlin 依赖项。我还认为您的 orientdb-empty.properties 文件缺少一些配置选项 - 查看哪些是默认的，哪些不是 here .