# Elasticsearch 7.17 Java RestHighLevelClient to Elasticsearch 8.10.0 server communication issue
**URL:** https://discuss.elastic.co/t/elasticsearch-7-17-java-resthighlevelclient-to-elasticsearch-8-10-0-server-communication-issue/353048
**Category:** Elasticsearch
**Tags:** language-clients
**Created:** [February 12, 2024, 9:31am UTC](https://discuss.elastic.co/t/elasticsearch-7-17-java-resthighlevelclient-to-elasticsearch-8-10-0-server-communication-issue/353048 "2024-02-12T09:31:51Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Muthukumaran\_Kothand](https://discuss.elastic.co/u/Muthukumaran_Kothand)
#### Post date: [February 12, 2024, 9:31am UTC](https://discuss.elastic.co/t/elasticsearch-7-17-java-resthighlevelclient-to-elasticsearch-8-10-0-server-communication-issue/353048/1 "2024-02-12T09:31:51Z")
Hi,
Since we have a large Java Client codebase, our migration to 8.x Java Client would take time and as intermediary solution, we are constrained to use Elasticsearch 7.17.x client in combination with 8.10.0 server
I am trying to get Elasticsearch 7.17 Java RestHighLevelClient to talk to Elasticsearch 8.10.0 Server. As recommended by the document, I am using the `setApiCompatibility(true)` - [https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-high-compatibility.html](https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-high-compatibility.html)
Below is the code which I tried testing using
Client Libraries version 7.17.0
Server Version 8.10.0
```auto
import org.apache.http.HttpHost;
import org.elasticsearch.action.admin.indices.mapping.put.PutMappingRequest;
import org.elasticsearch.action.support.master.AcknowledgedResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.client.RestHighLevelClientBuilder;
import org.elasticsearch.xcontent.XContentType;
import java.io.IOException;
public class TestESPutMapping {
public static void main(String[] args) {
RestClient client1 = RestClient.builder(new HttpHost("localhost", 9200, "http")).build();
RestHighLevelClient client = new RestHighLevelClientBuilder(client1).setApiCompatibilityMode(true).build();
try {
String indexName = "elasticsearch-sql_test_index_account";
// Create mapping JSON
String dataMapping = "{\n" +
" \"properties\": {\n" +
" \"gender\": {\n" +
" \"type\": \"text\"\n" +
" }," +
" \"address\": {\n" +
" \"type\": \"text\"\n" +
" }," +
" \"state\": {\n" +
" \"type\": \"text\"\n" +
" }" +
" }"+
" }";
// Create put mapping request
PutMappingRequest putMappingRequest = new PutMappingRequest(indexName)
.source(dataMapping, XContentType.JSON).type("_doc");
// Update mapping
AcknowledgedResponse putMappingResponse = client.indices().putMapping(putMappingRequest, RequestOptions.DEFAULT);
boolean acknowledged = putMappingResponse.isAcknowledged();
System.out.println("Mapping update acknowledged: " + acknowledged);
} catch (IOException e) {
e.printStackTrace();
}
}
}
```
With above code,
1. if I remove `.type("_doc")` in `PutMappingRequest`, I get below exception
```auto
Exception in thread "main" org.elasticsearch.action.ActionRequestValidationException: Validation Failed: 1: mapping type is missing;
at org.elasticsearch.action.ValidateActions.addValidationError(ValidateActions.java:15)
at org.elasticsearch.action.admin.indices.mapping.put.PutMappingRequest.validate(PutMappingRequest.java:118)
at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:2133)
at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:2105)
at org.elasticsearch.client.IndicesClient.putMapping(IndicesClient.java:490)
at org.nlpcn.es4sql.TestESPutMapping.main(TestESPutMapping.java:43)
```
1. With same code if I retain `.type("_doc")` , I get below exception
```auto
Exception in thread "main" ElasticsearchStatusException[Elasticsearch exception [type=mapper_parsing_exception, reason=Failed to parse mapping: Root mapping definition has unsupported parameters: [address : {type=text}] [gender : {type=text}] [state : {type=text}]]]; nested: ElasticsearchException[Elasticsearch exception [type=mapper_parsing_exception, reason=Root mapping definition has unsupported parameters: [address : {type=text}] [gender : {type=text}] [state : {type=text}]]];
at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:178)
at org.elasticsearch.client.RestHighLevelClient.parseEntity(RestHighLevelClient.java:2484)
at org.elasticsearch.client.RestHighLevelClient.parseResponseException(RestHighLevelClient.java:2461)
at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:2184)
at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:2137)
at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:2105)
at org.elasticsearch.client.IndicesClient.putMapping(IndicesClient.java:490)
at org.nlpcn.es4sql.TestESPutMapping.main(TestESPutMapping.java:43)
Suppressed: org.elasticsearch.client.ResponseException: method [PUT], host [http://localhost:9200], URI [/elasticsearch-sql_test_index_account/_mapping/_doc?master_timeout=30s&include_type_name=true&timeout=30s], status line [HTTP/1.1 400 Bad Request]
Warnings: [[types removal] Specifying types in put mapping request is deprecated. Use typeless api instead]
```
**Clarifications :**
1. Is `.type("_doc")` mandatory in above code
2. What is wrong with above simple mapping ? (formatted json as below to declutter escape chars)
```auto
{
"properties": {
"gender": {
"type": "text"
},
"address": {
"type": "text"
},
"state": {
"type": "text"
}
}
}
```
Kindly let me know if I am missing something grossly.
Regards
Muthu
---
### Author:  [@TimV](https://discuss.elastic.co/u/TimV)
#### Post date: [February 13, 2024, 1:18am UTC](https://discuss.elastic.co/t/elasticsearch-7-17-java-resthighlevelclient-to-elasticsearch-8-10-0-server-communication-issue/353048/2 "2024-02-13T01:18:25Z")
> [@Muthukumaran\_Kothand](#):
>
> ```auto
> import org.elasticsearch.action.admin.indices.mapping.put.PutMappingRequest;
>
> ```
I believe you should be using `org.elasticsearch.client.indices.PutMappingRequest`
---
### Author:  [@Muthukumaran\_Kothand](https://discuss.elastic.co/u/Muthukumaran_Kothand)
#### Post date: [February 14, 2024, 9:16am UTC](https://discuss.elastic.co/t/elasticsearch-7-17-java-resthighlevelclient-to-elasticsearch-8-10-0-server-communication-issue/353048/3 "2024-02-14T09:16:41Z")
Thanks a lot @TimV , that fixed the issue ! Will mark as solution.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 13, 2024, 9:17am UTC](https://discuss.elastic.co/t/elasticsearch-7-17-java-resthighlevelclient-to-elasticsearch-8-10-0-server-communication-issue/353048/4 "2024-03-13T09:17:21Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.