I have set up my Elastic Cloud Service through Google Cloud and have set up an Elastic Search Instance.
I can upload my data to Elastic search and query my data just fine. However, when I try to connect to the Elastic Search Instance through my Java Client, I keep getting a 'java.io.IOException' and a 'java.net.UnknownHostException' exceptions.
24-Jun-2020 18:55:52.657 SEVERE [http-nio-8181-exec-8] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [dispatcher] in context with path [] threw exception
java.io.IOException: <Elastic Search endpoint>
at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:828)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:248)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:235)
at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1611)
Caused by: java.net.UnknownHostException: <Elastic Search Endpoint>
at java.base/java.net.InetAddress$CachedAddresses.get(InetAddress.java:797)
at java.base/java.net.InetAddress.getAllByName0(InetAddress.java:1505)
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1364)
at java.base/java.net.InetAddress.getAllByName(InetAddress.java:1298)
at org.apache.http.impl.conn.SystemDefaultDnsResolver.resolve(SystemDefaultDnsResolver.java:45)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager$InternalAddressResolver.resolveRemoteAddress(PoolingNHttpClientConnectionManager.java:664)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager$InternalAddressResolver.resolveRemoteAddress(PoolingNHttpClientConnectionManager.java:635)
at org.apache.http.nio.pool.AbstractNIOConnPool.processPendingRequest(AbstractNIOConnPool.java:474)
at org.apache.http.nio.pool.AbstractNIOConnPool.lease(AbstractNIOConnPool.java:280)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.requestConnection(PoolingNHttpClientConnectionManager.java:295)
at org.apache.http.impl.nio.client.AbstractClientExchangeHandler.requestConnection(AbstractClientExchangeHandler.java:377)
at org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.start(DefaultClientExchangeHandlerImpl.java:129)
at org.apache.http.impl.nio.client.InternalHttpAsyncClient.execute(InternalHttpAsyncClient.java:141)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:244)
... 49 more
And my Java Code:
String ELASTIC_SEARCH_USER_NAME = "elastic";
String ELASTIC_SEARCH_PASSWORD = <Password>;
String ELASTIC_SEARCH_ENDPOINT_URL = "https://92d5f385db294fb4b7ff335201d0a854.asia-northeast1.gcp.cloud.es.io";
Integer ELASTIC_SEARCH_PORT = 9243;
final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(ELASTIC_SEARCH_USER_NAME, ELASTIC_SEARCH_PASSWORD));
RestClientBuilder builder = RestClient.builder(new HttpHost(ELASTIC_SEARCH_ENDPOINT_URL, ELASTIC_SEARCH_PORT, "https"))
.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
@Override
public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
}
});
RestHighLevelClient highLevelClient = new RestHighLevelClient(builder);
Strangely, I have tried pinging my endpoint url in the command line but my cmd is unable to ping the url.
Is there something I need to set up in my Elastic Stack Console for my Java Client to request queries?
Thank you!
Asking the guys over at elastic.co forums, they suggested that I drop the "https://" portion from the ELASTIC_SEARCH_ENDPOINT_URL.
String ELASTIC_SEARCH_ENDPOINT_URL = "https://92d5f385db294fb4b7ff335201d0a854.asia-northeast1.gcp.cloud.es.io";
to
String ELASTIC_SEARCH_ENDPOINT_URL = "92d5f385db294fb4b7ff335201d0a854.asia-northeast1.gcp.cloud.es.io";
and keeping the rest of the code, it worked!