springboot整合elasticsearch提示org.elasticsearch.transport.NodeDisconnectedException

Question

org.springframework.boot
spring-boot-starter-data-elasticsearch
2.1.4.RELEASE


org.springframework.data
spring-data-elasticsearch
2.1.4.RELEASE


org.elasticsearch
elasticsearch
2.4.0


org.elasticsearch.plugin
transport-netty4-client
6.4.0


org.elasticsearch.client
transport
6.4.0

    application.yml 配置如下：
        spring: 
              data:
elasticsearch:
  cluster-nodes: 192.168.100.21:9300,192.168.100.22:9300,192.168.100.23:9300
  cluster-name: wt
  repositories:
    enabled: true

         springboot版本1.5.8，linux安装ES版本是6.4.0，上面是工程里引入的jar，ES在浏览器能访问，且有数据，但是项目启动就连接不上

NoNodeAvailableException[None of the configured nodes are available: [{#transport#-1}{192.168.100.21}{192.168.100.21:9300}, {#transport#-2}{192.168.100.22}{192.168.100.22:9300}, {#transport#-3}{192.168.100.23}{192.168.100.23:9300}]
]
at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:290)
at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:207)
at org.elasticsearch.client.transport.support.TransportProxyClient.execute(TransportProxyClient.java:55)
at org.elasticsearch.client.transport.TransportClient.doExecute(TransportClient.java:288)

Answer 1

在client初始化中，设置cluster_name，然后就可以了,正确的代码如下：

+ Settings settings = Settings.builder().put("cluster.name", "wt").build();
Client client = TransportClient.builder()
                .settings(settings)
                .build().addTransportAddress(
                new InetSocketTransportAddress(
                InetAddress.getByName("127.0.0.1"), 9300)); //IP改成对应的

或者：

 Settings settings = Settings.builder().put("cluster.name", SpringPropertiesUtil.getProperty("cluster.name")). 
                                        put("client.transport.ping_timeout",SpringPropertiesUtil.getProperty("elastic.ping.timeout")). 
                                        put("client.transport.nodes_sampler_interval",SpringPropertiesUtil.getProperty("elastic.sampler.interval")). 
                                        put("client.transport.sniff", true). 
                                        put("node.name",SpringPropertiesUtil.getProperty("search.node.name")).build(); 



client = new PreBuiltTransportClient(settings) 
                                .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName(getIndexHostName()), getIndexPort()));