org.elasticsearch.client.transport.NoNodeAvailableException：None 个已配置节点可用：[]

Question

我运行 ElasticSearch 在 Docker 上

$ curl http://192.168.99.100:9200/?pretty
{
  "status" : 200,
  "name" : "Collector",
  "cluster_name" : "elasticsearch",
  "version" : {
    "number" : "1.4.4",
    "build_hash" : "c88f77ffc81301dfa9dfd81ca2232f09588bd512",
    "build_timestamp" : "2015-02-19T13:05:36Z",
    "build_snapshot" : false,
    "lucene_version" : "4.10.3"
  },
  "tagline" : "You Know, for Search"
}

我正在使用 Elastic4s 连接到 ElasticSearch，我尝试了以下方法，但它们都给我错误

val client = ElasticClient.remote(host = "192.168.99.100", port = 9200)

和

val settings = ImmutableSettings.settingsBuilder().put("cluster.name", "elasticsearch").build()
  val uri = ElasticsearchClientUri("elasticsearch://192.168.99.100:9200")
  val client = ElasticClient.remote(uri)

错误是

Exception in thread "main" org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: []
    at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:305)
    at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:200)
    at org.elasticsearch.client.transport.support.InternalTransportClient.execute(InternalTransportClient.java:106)
    at org.elasticsearch.client.support.AbstractClient.index(AbstractClient.java:102)
    at org.elasticsearch.client.transport.TransportClient.index(TransportClient.java:340)
    at com.sksamuel.elastic4s.IndexDsl$IndexDefinitionExecutable$$anonfun$apply.apply(IndexDsl.scala:23)
    at com.sksamuel.elastic4s.IndexDsl$IndexDefinitionExecutable$$anonfun$apply.apply(IndexDsl.scala:23)
    at com.sksamuel.elastic4s.Executable$class.injectFuture(Executable.scala:21)
    at com.sksamuel.elastic4s.IndexDsl$IndexDefinitionExecutable$.injectFuture(IndexDsl.scala:20)
    at com.sksamuel.elastic4s.IndexDsl$IndexDefinitionExecutable$.apply(IndexDsl.scala:23)
    at com.sksamuel.elastic4s.IndexDsl$IndexDefinitionExecutable$.apply(IndexDsl.scala:20)
    at com.sksamuel.elastic4s.ElasticClient.execute(ElasticClient.scala:28)
    at com.enterpriseconnector.persistence.Elastic$.insert(Elastic.scala:17)
    at com.enterpriseconnector.persistence.Test$$anonfun.apply(Elastic.scala:27)
    at com.enterpriseconnector.persistence.Test$$anonfun.apply(Elastic.scala:24)
    at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
    at scala.collection.TraversableLike$$anonfun$map.apply(TraversableLike.scala:245)
    at scala.collection.immutable.Range.foreach(Range.scala:166)
    at scala.collection.TraversableLike$class.map(TraversableLike.scala:245)
    at scala.collection.AbstractTraversable.map(Traversable.scala:104)
    at com.enterpriseconnector.persistence.Test$.delayedEndpoint$com$enterpriseconnector$persistence$Test(Elastic.scala:24)
    at com.enterpriseconnector.persistence.Test$delayedInit$body.apply(Elastic.scala:23)
    at scala.Function0$class.apply$mcV$sp(Function0.scala:34)
    at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
    at scala.App$$anonfun$main.apply(App.scala:76)
    at scala.App$$anonfun$main.apply(App.scala:76)
    at scala.collection.immutable.List.foreach(List.scala:381)
    at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:35)
    at scala.App$class.main(App.scala:76)
    at com.enterpriseconnector.persistence.Test$.main(Elastic.scala:23)
    at com.enterpriseconnector.persistence.Test.main(Elastic.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)

我的完整代码是

import java.util.Calendar

import com.sksamuel.elastic4s.{ElasticsearchClientUri, ElasticClient}
import com.sksamuel.elastic4s.ElasticDsl._
import com.sksamuel.elastic4s.source.StringDocumentSource
import org.elasticsearch.common.settings.ImmutableSettings

object Elastic {
  println("Creating Elastic Connection")
  val settings = ImmutableSettings.settingsBuilder().put("cluster.name", "elasticsearch").build()
  val uri = ElasticsearchClientUri("elasticsearch://192.168.99.100:9200")
  val client = ElasticClient.remote(uri)

  def insert(monitorJson: String) = {
    client execute {
      index into "test" -> "elastic4s" doc StringDocumentSource(monitorJson)
    }
  }
}

object Test extends App {
  for (_ <- 1 to 100) yield {
    val json: String = s"{time: ${Calendar.getInstance().getTime()}}"
    println(s"inserting ${json}")
    Elastic.insert(json)
  }
}

Answer 1

9200 是通过 HTTP 连接的端口，这就是它在您的浏览器中工作的原因。如果您检查堆栈跟踪的顶部，您可以在您的案例中看到您正在通过传输客户端（即 TCP）进行连接，因此您需要改用端口 9300。试试这个：

val uri = ElasticsearchClientUri("elasticsearch://192.168.99.100:9300")
val client = ElasticClient.remote(uri)

Answer 2

尝试在启用 HTTP 的情况下添加设置

刚刚设置主机：

val host = "YOUR HOST NAME"

然后：

val settings = ImmutableSettings.settingsBuilder()
    .put("http.enabled", true).put("cluster.name", "CLUSTER-NAME").build()
val uri = ElasticsearchClientUri(s"${host}:9200")
val esClient = ElasticClient
    .remote(settings, uri)

现在应该可以使用端口 9200

Answer 3

确保客户端版本与 ElasticSearch 服务器相同。

org.elasticsearch.client.transport.NoNodeAvailableException：None 个已配置节点可用：[]

org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: []

java

scala

elasticsearch

docker

elastic4s