在Java中添加边缘后出现以下错误:
16:40:44.267 [gremlin-driver-loop-1]警告org.apache.tinkerpop.gremlin.driver.MessageSerializer-响应[PooledUnsafeDirectByteBuf(ridx:98,widx:98,cap:98)]由org.apache.tinkerpop.gremlin.driver.ser.AbstractGryoMessageSerializerV3d0反序列化。 org.apache.tinkerpop.shaded.kryo.KryoException:遇到未注册的类ID:65536 序列化跟踪: id(org.apache.tinkerpop.gremlin.structure.util.reference.ReferenceEdge) 在org.apache.tinkerpop.gremlin.structure.io.gryo.AbstractGryoClassResolver.readClass(AbstractGryoClassResolver.java:148)
Janusgraph版本为0.3.0,Tinkerpop版本为3.3.3,Janusgraph序列化配置如下:
> 序列化器: -{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]}} #较旧的序列化版本,用于向后兼容: -{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]}}
以下错误大约在同一时间记录在服务器上,并且似乎与之相关:
> 105869 2018-11-08 06:10:44,659 [gremlin-server-worker-1]警告io.netty.channel.DefaultChannelPipeline-触发了exceptionCaught()事件,该事件到达管道的末尾。这通常意味着管道中的最后一个处理程序未处理异常。 java.io.IOException:对等重置连接 在sun.nio.ch.FileDispatcherImpl.read0(本机方法)
据我所知,我的鸭子排列在匹配的序列化器版本上,但显然一定错过了一些东西。任何帮助,不胜感激!
代码可以在这里看到: https://gist.github.com/ptclarke/45472fa5c268a6e8441e4c35615194aa
答案 0 :(得分:4)
我认为您需要在客户端注册JanusGraphIoRegistry
:
GryoMapper.Builder builder = GryoMapper.build().
addRegistry(JanusGraphIoRegistry.getInstance());
GryoMessageSerializerV3d0 serializer = new GryoMessageSerializerV3d0(builder);
Cluster cluster = Cluster.build().
addContactPoint(host).
port(port).
serializer(serializer).
create();
作为有关代码的其他建议。考虑避免这样的小更新:
public void updateVertex(Vertex v, Map<Object, Object> propertyMap){
for(Entry<Object, Object> e : propertyMap.entrySet()) {
g.V(v).property(e.getKey(), e.getValue()).next();
}
}
,而是这样做:
public void updateVertex(Vertex v, Map<Object, Object> propertyMap){
GraphTraversal<Vertex,Vertex> t = g.V(v);
for(Entry<Object, Object> e : propertyMap.entrySet()) {
t = t.property(e.getKey(), e.getValue());
}
t.iterate();
}
您还可以简化“添加优势”代码:
public Edge addEdge(String label, Vertex from, Vertex to) {
return g.V(from).addE(label).to(to).next();
}