Question

我正在关注本教程

https://orrsella.com/2014/10/28/embedded-elasticsearch-server-for-scala-integration-tests/

我正在尝试关注该链接，因为我使用的是ELasticSearch 1.6.0，但它使用的是NodeClient，我想使用transportClient但我得到了异常

 org.elasticsearch.client.transport.NoNodeAvailableException: None of the configured nodes are available: []
[info]   at org.elasticsearch.client.transport.TransportClientNodesService.ensureNodesAreAvailable(TransportClientNodesService.java:305)
[info]   at org.elasticsearch.client.transport.TransportClientNodesService.execute(TransportClientNodesService.java:200)
[info]   at org.elasticsearch.client.transport.support.InternalTransportIndicesAdminClient.execute(InternalTransportIndicesAdminClient.java:86)
[info]   at org.elasticsearch.client.support.AbstractIndicesAdminClient.create(AbstractIndicesAdminClient.java:367)
[info]   at org.elasticsearch.action.admin.indices.create.CreateIndexRequestBuilder.doExecute(CreateIndexRequestBuilder.java:250)
[info]   at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:91)
[info]   at org.elasticsearch.action.ActionRequestBuilder.execute(ActionRequestBuilder.java:65)
[info]   at testcontrollers.campaign.ElasticsearchServer.createAndWaitForIndex(ElasticsearchServer.scala:40)
[info]   at testcontrollers.campaign.CampaignTestSearch.<init>(CampaignTestSearch.scala:41)
[info]   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

这是代码

class ElasticsearchServer {
  val log = LoggerFactory.getLogger(this.getClass)
  private val clusterName = "testcluster"
  private val dataDir = Files.createTempDirectory("elasticsearch_test_data_").toFile
  private val settings = ImmutableSettings.settingsBuilder
    .put("path.data", dataDir.toString)
    .put("cluster.name", clusterName)
    .put("node.local",true)
    .build

  def client: TransportClient ={
    val client=new TransportClient(settings)
    .addTransportAddress(new InetSocketTransportAddress("127.0.0.1", 9300))
   client
  }
  def stop(): Unit = {
    client.close();

    try {
      FileUtils.forceDelete(dataDir)
    } catch {
      case e: Exception => // dataDir cleanup failed
    }
  }

    def createAndWaitForIndex(index: String): Unit = {
      client.admin.indices.prepareCreate(index).execute.actionGet()
      client.admin.cluster.prepareHealth(index).setWaitForActiveShards(1).execute.actionGet()
    }
}

class CampaignTestSearch extends PlaySpec{
  val server = new ElasticsearchServer
  server.createAndWaitForIndex("arteciatetestdb")
val client=server.client

val response = client.prepareSearch("dbtest")
      .setTypes(CAMPAIGN_COLLECTION_NAME)
      .setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
      .addFields("uuid","campaignName","artworkID","activationDate","_source")
      .setQuery(query)
      .execute()
      .actionGet()
  }

Answer 1

首先，您需要记住，较新版本的elasticsearch已经放弃了对嵌入式使用它的支持，其原因在this blog post中有描述。

在弹性搜索的许多版本中考虑到这一点，包括5，您可以使用ESIntegTestCase支持类，并使您的集成测试类扩展它，以便在测试中支持嵌入式弹性搜索。您可以在their official documentation处详细了解此信息。

来自他们的官方文件：

public class Mytests extends ESIntegTestCase {

  @Override
  protected Settings nodeSettings(int nodeOrdinal) {
      return Settings.builder().put(super.nodeSettings(nodeOrdinal))
             .put("node.mode", "network")
             .build();
  }

}

在版本1.x中有一个名为ElasticsearchTestCase的类，它将支持弹性单元测试，检查this link on their official repository以获取有关如何使用它的完整示例。

Answer 2

不再支持嵌入式Elasticsearch

您可以使用此Maven依赖项，它将为您启动Elasticsearch 6集群

<dependency>
    <groupId>org.elasticsearch-6</groupId>
    <artifactId>elasticsearch-embedded-cluster</artifactId>
    <version>1.0-SNAPSHOT</version>
</dependency>

您可以阅读有关的更多详细信息 https://github.com/nitishgoyal13/elasticsearch-6-embedded-cluster

如何使用嵌入式ElasticSearch进行集成测试

2 个答案: