Question

我正在尝试使用graphaware连接Neo4j和ES Docker容器，但出现了docker-to-docker连接问题。

org.apache.http.conn.HttpHostConnectException: Connect to 127.0.0.1:9201 [/127.0.0.1] failed: Connection refused (Connection refused)

我可以使用浏览器通过http访问这两个容器数据。由于我对这些技术还很陌生，所以在此阶段我不知道问题的实际位置。

我使用的版本：

neo4j：3.5.3
ElasticSearch 6.6.1
graphaware-neo4j-to-elasticsearch-3.5.2.53.11.jar
graphaware-server-community-all-3.5.2.jar
graphaware-uuid-3.5.2.53.17.jar
docker：18.09.3

这是我的yml文件。

version: '3.3'                                                                                                                                          
services:                                                                                                                                               
  neo4j:                                                                                                                                                
    restart: always                                                                                                                                     
    image: neo4j:3.5.3                                                                                                                                  
    container_name: neo4j                                                                                                                               
    environment:                                                                                                                                        
      - NEO4J_AUTH=none                                                                                                                                 
      - NEO4J_ACCEPT_LICENSE_AGREEMENT=yes                                                                                                              
      - NEO4J_dbms_connector_http_listen__address=:7474                                                                                                 
      - NEO4J_dbms_connector_https_listen__address=:6477                                                                                                
      - NEO4J_dbms_connector_bolt_listen__address=:7687                                                                                                 
      - NEO4J_dbms_memory_heap_initialSize=16G                                                                                                          
      - NEO4J_dbms_memory_heap_maxSize=16G                                                                                                              
    volumes:                                                                                                                                            
      - /home/leag/drive53/neo4j/data:/data                                                                                                             
      - ./neo4j/conf:/conf                                                                                                                              
      - ./neo4j/plugins:/plugins                                                                                                                        
      - /home/leag/drive53/imports:/import                                                                                                              
    ports:                                                                                                                                              
      - 7474:7474                                                                                                                                       
      - 7687:7687                                                                                                                                       
    networks:                                                                                                                                           
      - neo-ela                                                                                                                                         
  elastic:                                                                                                                                              
    build: .                                                                                                                                            
    container_name: elastic_container                                                                                                                   
    volumes:                                                                                                                                            
      - ./elasticsearch/data:/usr/share/elasticsearch/data                                                                                              
      - ./elasticsearch/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml                                                             
    environment:                                                                                                                                        
      - neo4j="http://neo4j"                                                                                                                            
    ports:                                                                                                                                              
      - 9201:9201                                                                                                                                       
    networks:                                                                                                                                           
      - neo-ela                                                                                                                                         
networks:                                                                                                                                               
  neo-ela:                                                                                                                                              
    driver: bridge

neo4j.conf文件：

# This setting should only be set once for registering the framework and all the used submodules
dbms.unmanaged_extension_classes=com.graphaware.server=/graphaware

com.graphaware.runtime.enabled=true

#UIDM becomes the module ID:
com.graphaware.module.UIDM.1=com.graphaware.module.uuid.UuidBootstrapper

#optional, default is "uuid". (only if using the UUID module)
com.graphaware.module.UIDM.uuidProperty=uuid

#optional, default is all nodes:
#com.graphaware.module.UIDM.node=hasLabel('Label1') || hasLabel('Label2')

#optional, default is uuidIndex
com.graphaware.module.UIDM.uuidIndex=uuidIndex

#prevent the whole db to be assigned a new uuid if the uuid module is settle up together with neo4j2es
com.graphaware.module.UIDM.initializeUntil=0

#ES becomes the module ID:
com.graphaware.module.ES.2=com.graphaware.module.es.ElasticSearchModuleBootstrapper

#URI of Elasticsearch; elastic works as well
com.graphaware.module.ES.uri=127.0.0.1

#Port of Elasticsearch
com.graphaware.module.ES.port=9201

#optional, protocol of Elasticsearch connection, defaults to http
com.graphaware.module.ES.protocol=http

#optional, Elasticsearch index name, default is neo4j-index
com.graphaware.module.ES.index=neo4j-index

#optional, node property key of a propery that is used as unique identifier of the node. Must be the same as com.graphaware.module.UIDM.uuidProperty (only if using UUID module), defaults to uuid
#use "ID()" to use native Neo4j IDs as Elasticsearch IDs (not recommended)
com.graphaware.module.ES.keyProperty=uuid

#optional, whether to retry if a replication fails, defaults to false
com.graphaware.module.ES.retryOnError=false

#optional, size of the in-memory queue that queues up operations to be synchronised to Elasticsearch, defaults to 10000
com.graphaware.module.ES.queueSize=10000

#optional, size of the batch size to use during re-initialization, defaults to 1000
com.graphaware.module.ES.reindexBatchSize=2000

#optional, specify which nodes to index in Elasticsearch, defaults to all nodes
#com.graphaware.module.ES.node=hasLabel('Label1')

#optional, specify which node properties to index in Elasticsearch, defaults to all properties
#com.graphaware.module.ES.node.property=key != 'age'

#optional, specify whether to send updates to Elasticsearch in bulk, defaults to true (highly recommended)
com.graphaware.module.ES.bulk=true

#optional, read explanation below, defaults to 0
com.graphaware.module.ES.initializeUntil=0

和elasticsearch.yml

network.publish_host: 127.0.0.1
network.host: 127.0.0.1
transport.tcp.port: 9300
http.port: 9201
http.host: 127.0.0.1
http.cors.enabled: true
http.cors.allow-origin: "*"
http.cors.allow-methods: OPTIONS, HEAD, GET, POST, PUT, DELETE
http.cors.allow-headers: "X-Requested-With, Content-Type, Content-Length, X-User"

Answer 1

问题很可能是您的neo4j试图连接到与neo4j在同一台计算机上运行的elasticsearch

#URI of Elasticsearch; elastic works as well
com.graphaware.module.ES.uri=127.0.0.1

#Port of Elasticsearch
com.graphaware.module.ES.port=9201

Elasticsearch未在同一台计算机上运行，因此应避免在配置文件上使用127.0.0.1，尝试将localhost地址交换为ES的本地dns地址，

#URI of Elasticsearch; elastic works as well
com.graphaware.module.ES.uri=elastic

#Port of Elasticsearch
com.graphaware.module.ES.port=9201

连接被拒绝-使用graphaware连接Neo4j / ES Docker容器

1 个答案: