I'm running on an aws-elasticsearch (with OpenSearch 1.1.x) service and im trying to connect with it since an spring application using spring-data-elasticsearch, according to the doc i configured the way it says.
From aws i used an ssh tunnel from my aws account.
i used this command:
ssh -4 -i my-creds.pem [email protected] -N -L 9200:vpc-my-custom-domain-etc.us-east-1.es.amazonaws.com:443
so i can connect with the dashboard over localhost in my browser with port 9200.
Using the OpenSearch RestHighLevelClient from OpenSearch and disabling the ssl i can connect and it works just fine here the config with OS RHLC:
import org.apache.http.HttpHost;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexRequest;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.indices.CreateIndexRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.Map;
public class OSSCLientWorks{
private static final Logger log = LoggerFactory.getLogger(ClientAutoWrapper.class);
public void request(String indexName, Map<String, Object> doc) throws IOException {
//Create a client.
RestClientBuilder builder = RestClient.builder(new HttpHost("localhost", 9200, "https"))
.setHttpClientConfigCallback(httpClientBuilder -> httpClientBuilder
//.addInterceptorFirst(interceptor) //-> for AwsRequestInterceptor due to some struggles i had, not necessary to work with localhost
.setSSLHostnameVerifier((hostname, session) -> true));
try (RestHighLevelClient hlClient = new RestHighLevelClient(builder)) {
CreateIndexRequest createIndexRequest = new CreateIndexRequest(indexName);
var createIndexResp = hlClient.indices().create(createIndexRequest, RequestOptions.DEFAULT);
log.info("Create index resp {}", createIndexResp);
IndexRequest indexRequest = new IndexRequest(createIndexResp.index())
.id(String.valueOf(doc.get("id")))
.source(doc);
var response = hlClient.index(indexRequest, RequestOptions.DEFAULT);
var resp = response.toString();
log.info("response is {}", json);
}
}
}
, but when i try with spring and its reactive client i get this error:
reactor.core.Exceptions$ErrorCallbackNotImplemented: org.springframework.data.elasticsearch.client.NoReachableHostException: Host 'localhost:9200' not reachable. Cluster state is offline.
Caused by: org.springframework.data.elasticsearch.client.NoReachableHostException: Host 'localhost:9200' not reachable. Cluster state is offline.
here is the config i used to work with spring-data-elasticsearch:
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.client.ClientConfiguration;
import org.springframework.data.elasticsearch.client.reactive.ReactiveElasticsearchClient;
import org.springframework.data.elasticsearch.client.reactive.ReactiveRestClients;
import org.springframework.data.elasticsearch.config.AbstractReactiveElasticsearchConfiguration;
import org.springframework.data.elasticsearch.core.ReactiveElasticsearchOperations;
import org.springframework.data.elasticsearch.core.ReactiveElasticsearchTemplate;
import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;
import org.springframework.data.elasticsearch.repository.config.EnableReactiveElasticsearchRepositories;
@Configuration
@EnableReactiveElasticsearchRepositories(basePackages = {"com.elastic.repo"})
public class ElasticRestHighLevelClientConfig extends AbstractReactiveElasticsearchConfiguration {
@Override
@Bean
public ReactiveElasticsearchClient reactiveElasticsearchClient() {
final ClientConfiguration clientConfiguration = ClientConfiguration.builder()
.connectedTo("localhost:9200")
.build();
return ReactiveRestClients.create(clientConfiguration);
}
@Bean
public ReactiveElasticsearchOperations elasticsearchOperations(ReactiveElasticsearchClient reactiveElasticsearchClient) {
return new ReactiveElasticsearchTemplate(reactiveElasticsearchClient);
}
}
i also tried some solutions other people posted here on SO and Github, but the problem persists, does anybody have a workaround for this? what am i doing wrong?
here i did a demo for the trouble
Thank you very much in advance!
CodePudding user response:
You have to configure to use SSL for the reactive client with one of the usingSsl()
methods:
@Override
@Bean
public ReactiveElasticsearchClient reactiveElasticsearchClient() {
final ClientConfiguration clientConfiguration = ClientConfiguration.builder()
.connectedTo("localhost:9200")
.usingSsl() // <--
.build();
return ReactiveRestClients.create(clientConfiguration);
}