Getting " failed to connect to node [{#transport#-1}{nE-IOaK-SLWdBf7f80Yo2g}{localhost}{127.0.0.1:9300}], ignoring..."

Elastic Stack Elasticsearch
1

I get this error when I try to connect to the ElasticSearch v7.2. Here is my setting in elastic.yml file

cluster.name: eml
node.name: eml
path.logs: d:/temp/logs/elastic
http.port: 9200

Here is my application.properties settings:

spring.data.elasticsearch.cluster-name = eml
spring.data.elasticsearch.cluster-nodes=localhost:9300
elasticsearch.host = localhost
elasticsearch.port = 9200
elasticsearch.username=
elasticsearch.password=
elasticsearch.clustername = eml

I use Spring Boot to connect. but also use HighLevelClient API

Here is my code to configure HighLevel Client.

@Configuration
@Slf4j
public class ElasticHighLevelClientConfig {

@Value("${elasticsearch.host}")
private String host;

@Value("${elasticsearch.port}")
private int port;

@Value("${elasticsearch.username}")
private String userName;

@Value("${elasticsearch.password}")
private String password;

@Bean(name = "myEsClient", destroyMethod = "close")
public RestHighLevelClient myRestClient() {
	final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
	credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(userName, password));
	RestClientBuilder builder = RestClient.builder(new HttpHost(host, port)).setHttpClientConfigCallback(
			httpClientBuilder -> httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider));
	RestHighLevelClient client = new RestHighLevelClient(builder);
	return client;

}

}

2

Can you please post here the full error message with complete stacktrace?

3

Thanks Thiago for taking a look at my issue. Interestingly, I was able to resolve the issue by downgrading ES from 7.2 to 6.8. It seems the current Spring ElasticSearch with Spring Boot 2.1 does not support ES 7.2.

I will be interested to find out if anybody runs ES 7.2 with Spring Boot 2.1.

4

When using springboot with
elasticsearch, you need to be explicit with some transitive dependencies as SpringBoot declares a version 6.4...

Basically you can put this in your pom.xml:

<properties>
  <elasticsearch.version>7.2.0<elasticsearch.version>
</properties>

See documentation here: “How-to” Guides

I will be interested to find out if anybody runs ES 7.2 with Spring Boot 2.1.

I do. Here: GitHub - dadoonet/legacy-search at 06-fuzziness

5

Thank you David. I will make the change as you suggested and let you know the outcome. Once again I appreciate your response.

6

I updated my pom.xml by adding:
<elasticsearch.version>7.2.0</elasticsearch.version>
<beyonder.version>7.0</beyonder.version>

7

I updated my pom.xml by adding the following properties:
<elasticsearch.version>7.2.0</elasticsearch.version>
<beyonder.version>7.0</beyonder.version>

and the following dependencies:

	 <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>elasticsearch-rest-high-level-client</artifactId>
        <version>${elasticsearch.version}</version>
    </dependency>
    <!-- this is now needed because of spring parent which forces a 6.4 version -->
    <dependency>
        <groupId>org.elasticsearch.client</groupId>
        <artifactId>elasticsearch-rest-client</artifactId>
        <version>${elasticsearch.version}</version>
    </dependency>
    <dependency>
        <groupId>org.elasticsearch</groupId>
        <artifactId>elasticsearch</artifactId>
        <version>${elasticsearch.version}</version>
    </dependency>
    <dependency>
        <groupId>fr.pilato.elasticsearch</groupId>
        <artifactId>elasticsearch-beyonder</artifactId>
        <version>${beyonder.version}</version>
    </dependency>

Now, I get this error
Archive for required library: 'D:/Users/vpatel/.m2/repository/org/elasticsearch/client/transport/7.2.0/transport-7.2.0.jar' in project 'EmployerWebService' cannot be read or is not a valid ZIP file"

I also deleted all files/folder under "D:/Users/vpatel/.m2/repository/org/elasticsearch/client/transport/". But I still get this error.

8

how about synchronized the maven?

9

Yes. I did "Update Project" after making the change in the POM.

10

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