如何在yaml中为gremlin serializer注册类-未注册类：org.janusgraph.graphdb.database.standardjanusgraph

tvokkenx 于 2021-06-09 发布在 Hbase

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使用janusgraph configuredgraphfactory（）创建新图形时出现以下错误。

179262 [gremlin-server-session-1] WARN  org.apache.tinkerpop.gremlin.driver.MessageSerializer  - Response [ResponseMessage{requestId=9cdb34da-2033-4d08-9636-724743f0b798, status=ResponseStatus{code=SUCCESS, message='', attributes={}}, result=ResponseResult{data=[standardjanusgraph[hbase:[127.0.0.1]]], meta={}}}] could not be serialized by org.apache.tinkerpop.gremlin.driver.ser.AbstractGryoMessageSerializerV1d0.
java.lang.IllegalArgumentException: Class is not registered: org.janusgraph.graphdb.database.StandardJanusGraph
Note: To register this class use:     kryo.register(org.janusgraph.graphdb.database.StandardJanusGraph.class);

当我从gremlin客户端运行这个命令时就会发生这种情况

ConfiguredGraphFactory.create("graph");

我可以知道如何在yaml中注册org.janusgraph.graphdb.database.standardjanusgraph吗？
gremlin-server.yaml的定义如下。我想我应该在序列化程序部分添加一些东西？

host: 127.0.0.1
port: 8182
scriptEvaluationTimeout: 30000
channelizer: org.janusgraph.channelizers.JanusGraphWebSocketChannelizer
graphManager: org.janusgraph.graphdb.management.JanusGraphManager
graphs: {
  ConfigurationManagementGraph: conf/gremlin-server/janusgraph-hbase-configurationgraph.properties
}
scriptEngines: {
  gremlin-groovy: {
    plugins: { org.janusgraph.graphdb.tinkerpop.plugin.JanusGraphGremlinPlugin: {},
           org.apache.tinkerpop.gremlin.server.jsr223.GremlinServerGremlinPlugin: {},
           org.apache.tinkerpop.gremlin.tinkergraph.jsr223.TinkerGraphGremlinPlugin: {},
           org.apache.tinkerpop.gremlin.jsr223.ImportGremlinPlugin: {classImports: [java.lang.Math], methodImports: [java.lang.Math#*]},
           org.apache.tinkerpop.gremlin.jsr223.ScriptFileGremlinPlugin: {files: []}}}}
serializers:
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV3d0, config: { serializeResultToString: true }}
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV3d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
  # Older serialization versions for backwards compatibility:
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoLiteMessageSerializerV1d0, config: {ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { serializeResultToString: true }}
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV2d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV1d0, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistryV1d0] }}
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV1d0,     config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistryV1d0] }}
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},
  gangliaReporter: {enabled: false, interval: 180000, addressingMode: MULTICAST},
  graphiteReporter: {enabled: false, interval: 180000}}
maxInitialLineLength: 4096
maxHeaderSize: 8192
maxChunkSize: 8192
maxContentLength: 65536
maxAccumulationBufferComponents: 1024
resultIterationBatchSize: 64
writeBufferLowWaterMark: 32768
writeBufferHighWaterMark: 65536

hbase JanusGraph gremlin tinkerpop gremlin-server

来源：https://stackoverflow.com/questions/52180017/how-to-register-class-in-yaml-for-gremlin-serializer-class-is-not-registered

2条答案

按热度按时间

qlvxas9a1#

gryomessageserializerv3d0已被弃用。使用graphbinarymessageserializerv1

serializers:
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1, config: { ioRegistries: [org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry] }}
  - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphBinaryMessageSerializerV1, config: { serializeResultToString: true }}

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utugiqy62#

我假设您有一个使用您提供的配置运行的服务器，您现在想要从groovy脚本连接到它。我也有同样的问题。解决方案如下：

cluster = Cluster.open("../conf/remote.yaml")
client = cluster.connect()
client.init()
client.submit('kryo.register(org.janusgraph.graphdb.database.StandardJanusGraph.class)\n'+
              'ConfiguredGraphFactory.open("mygraph")')
GraphTraversalSource g = EmptyGraph.instance().traversal().withRemote(
                           DriverRemoteConnection.using(cluster, "mygraph_traversal"))

这在没有gremlin控制台的情况下工作，因此您可以直接编译和执行这个groovy脚本（给定必要的依赖项）。

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如何在yaml中为gremlin serializer注册类-未注册类：org.janusgraph.graphdb.database.standardjanusgraph

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