Question

我能够连接到弹性搜索DateTime Data 2017-11-21 18:54:31 1 2017-11-22 02:26:48 1 2017-11-22 10:19:44 1 2017-11-22 15:11:28 1 2017-11-22 23:21:58 1 2017-11-28 14:28:28 1 2017-11-28 14:36:40 0 2017-11-28 14:59:48 1并通过cURL和插件头索引，更新，删除和查询文档但我无法通过java客户端连接到文档，即

6.1.0

依赖性。以下是/** * Elasticsearch */ // https://mvnrepository.com/artifact/org.elasticsearch/elasticsearch compile group: 'org.elasticsearch', name: 'elasticsearch', version: '6.1.0' // https://mvnrepository.com/artifact/org.elasticsearch.client/transport compile group: 'org.elasticsearch.client', name: 'transport', version: '6.1.0'

elasticsearch.yml

通过java客户端收到的错误是：

#cluster.name: my-application
cluster.name: saasworthy-qa

node.name: qa-1

path.data: /var/lib/elasticsearch

path.logs: /var/log/elasticsearch

#network.host: 192.168.0.1
network.host: 10.10.10.2

#http.port: 9200

#discovery.zen.ping.unicast.hosts: ["host1", "host2"]
#discovery.zen.ping.unicast.hosts: ["10.10.10.2"]
#discovery.zen.minimum_master_nodes: 1

此外，ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console... Exception in thread "main" NoNodeAvailableException[None of the configured nodes are available: [{#transport#-1}{SLvQfw9FREWVhpwTBtjNWg}{X.X.X.X}{X.X.X.X:9300}]] at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:347) at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:245) at org.elasticsearch.client.transport.TransportProxyClient.execute(TransportProxyClient.java:60) at org.elasticsearch.client.transport.TransportClient.doExecute(TransportClient.java:360) at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:405) at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:394) at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:46) at com.sw.config.elastic.connection.factory.SaaSWorthyElasticsearchClientFactory.main信息，

netstat

请帮助我解决问题。感谢。

Answer 1

对于Java，Elasticsearch提供了2组客户端API：

Java Transport Client
Java REST Client

用于Java传输客户端的elasticsearch.yml（单节点）：

transport.host: localhost
transport.tcp.port: 9300
http.port: 9200
network.host: 0.0.0.0

Java Transport客户端示例：

    // on startup

    TransportClient client = new PreBuiltTransportClient(Settings.EMPTY)
            .addTransportAddress(new TransportAddress(InetAddress.getByName("localhost"), 9300));

    System.out.println(client.listedNodes());

    // on shutdown

    client.close();

要使用Java Transport客户端，我们需要完成 Bootstrap Checks ，这对初学者来说非常困难。它更容易使用Java REST客户端。

注意：Elasticsearch计划在Elasticsearch 7.0中弃用 TransportClient ，并在8.0中完全删除。更多信息可以找到 here （只需向下滚动即可搜索警告符号）。

Answer 2

将client.transport.sniff标记为false后，我可以通过传输客户端进行连接。作为开发环境的服务器，集群只包含一个节点。

了解更多info。

无法连接到Elasticsearch 6.1.0 [没有配置的节点可用]

2 个答案: