我正在使用 Maven 在 Java项目中使用 Elasticsearch :
...
<elasticsearch.version>6.7.0</elasticsearch.version>
...
<!-- Elasticsearch -->
<dependency>
<groupId>org.elasticsearch</groupId>
<artifactId>elasticsearch</artifactId>
<version>${elasticsearch.version}</version>
</dependency>
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>transport</artifactId>
<version>${elasticsearch.version}</version>
</dependency>
<dependency>
<groupId>org.elasticsearch.plugin</groupId>
<artifactId>transport-netty4-client</artifactId>
<version>${elasticsearch.version}</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-to-slf4j</artifactId>
<version>2.8.2</version>
</dependency>
<!-- Elasticsearch -->
当我尝试初始化TransportClient以便为文档建立索引时,它给了我错误:
NoNodeAvailableException[None of the configured nodes are available:
[{#transport#-1}{BHMBbfcrSUOM_Pyaf1LcnA}{localhost}{127.0.0.1:9300}]]
也许需要在config / elasticsearch.yaml中添加有关transportartion的更多信息,否则当前配置是错误的。
Java代码:
TransportAddress address;
TransportClient client;
Settings settings;
try {
address = new TransportAddress(InetAddress.getByName("localhost"), 9300);
settings = Settings
.builder()
.put("cluster.name", "lib2life")
.put("client.transport.sniff", true)
.build();
/* Initiate Transport Client */
client = new PreBuiltTransportClient(settings)
.addTransportAddress(address);
/* Verify it cluster is healthy */
ClusterHealthResponse clusterResponse = client
.admin()
.cluster()
.prepareHealth()
.setWaitForGreenStatus()
.setTimeout(TimeValue.timeValueSeconds(5))
.execute() //Error here
.actionGet();
... (more code)
}
elasticsearch.yaml:
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
cluster.name: lib2life
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
#network.host: 192.168.0.1
network.host:localhost
network.transport.tcp.port:9300
#
# Set a custom port for HTTP:
#
#http.port: 9200
#
# For more information, consult the network module documentation.
#
(elasticsearch.yaml中的其他信息已注释)
localhost:9200 给我:
{
"name" : "IRINAMW7",
"cluster_name" : "lib2life",
"cluster_uuid" : "-wL1-xdESnyoknD2ZqALDQ",
"version" : {
"number" : "7.1.1",
"build_flavor" : "default",
"build_type" : "zip",
"build_hash" : "7a013de",
"build_date" : "2019-05-23T14:04:00.380842Z",
"build_snapshot" : false,
"lucene_version" : "8.0.0",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}
答案 0 :(得分:1)
问题出在端口配置上,您将端口9300
用于REST调用,该端口实际上用于Elasticsearch集群中的节点间通信。请更改以下Java代码以使用端口9200
。
address = new TransportAddress(InetAddress.getByName("localhost"), 9200);
请详细了解es https://discuss.elastic.co/t/elasticsearch-port-9200-or-9300/72080/2的端口
答案 1 :(得分:0)
我解决了这个问题。问题是我将Elasticsearch 6.7.0版本与TransportClient一起使用,该版本已弃用,并由RestHighLevelClient代替。另外,我必须使用端口9200,并取消注释http.port:9200和Discovery.seed_hosts:来自elasticsearch.yaml的[“ host1”,“ host2”]