Could anyone help us establish elasticsearch-java connectivity through REST api.
It would be of great help if you provide a tutorial from basic.
We were using 5.x version.
Thanks, we will upgrade and refer the documentation.
The document isnt helping to setup a simple connection.
I just need to execute a search query and display the result in Java.
The document isnt helping to setup a simple connection.
Ha? Initialization | Java REST Client [7.17] | Elastic
I just need to execute a search query and display the result in Java.
Thanks.
The connection is established and i am able to get host name, hits , etc but not the data in the index.
Hard to tell as I can't see your code.
Index -> million
Document Type -> million
public class HighLevel {
public static void main(String[] args) throws IOException,InterruptedException {
Runtime runtime = Runtime.getRuntime();
//Pass string in this format to open Batch file
runtime.exec("cmd /c start Z:\\elasticsearch-6.0.0\\bin\\elasticsearch.bat");
Thread.sleep(15000);
RestHighLevelClient client = new RestHighLevelClient(RestClient.builder(new HttpHost("localhost",9200,"http")));
SearchRequest searchRequest = new SearchRequest();
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.query(QueryBuilders.matchAllQuery());
searchRequest.source(searchSourceBuilder);
SearchResponse searchResponse = client.search(searchRequest);
SearchHits hits = searchResponse.getHits();
long totalhits = hits.getTotalHits();
System.out.println(totalhits);
Integer i=1;
while(i<totalhits)
{
GetRequest getRequest = new GetRequest("million","million",Integer.toString(i));
GetResponse getResponse = client.get(getRequest);
if (getResponse.isExists()) {
String sourceAsString = getResponse.getSourceAsString();
System.out.println(sourceAsString);
}
else
System.out.println("Done");
i++;
}
client.close();
}
}
- I need to search data by a specific type e.g. name, age, etc
- I need to apply joins to the documents in the index through logstash for all the data that i have and recurrent data as well
Please format your code using </> icon as explained in this guide. It will make your post more readable.
Or use markdown style like:
```
CODE
```
I edited your post.
What does this line prints?
System.out.println(totalhits);
Could you also print:
System.out.println(searchResponse.toString());
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 5,
"successful" : 5,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : 800000,
"max_score" : 1.0,
"hits" : [
{
"_index" : "million",
"_type" : "million",
"_id" : "15260",
"_score" : 1.0,
"_source" : {
"name" : "Rfaon Euaku",
"@version" : "1",
"id" : 15260,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 72393,
"age" : 23
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15262",
"_score" : 1.0,
"_source" : {
"name" : "Afdfx Kplbp",
"@version" : "1",
"id" : 15262,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 83784,
"age" : 38
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15270",
"_score" : 1.0,
"_source" : {
"name" : "Dylmv Hcont",
"@version" : "1",
"id" : 15270,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 45764,
"age" : 50
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15272",
"_score" : 1.0,
"_source" : {
"name" : "Ujsuh Hqrcy",
"@version" : "1",
"id" : 15272,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 49691,
"age" : 25
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15288",
"_score" : 1.0,
"_source" : {
"name" : "Yuauq Efshp",
"@version" : "1",
"id" : 15288,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 71358,
"age" : 42
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15293",
"_score" : 1.0,
"_source" : {
"name" : "Gvkar Brbvr",
"@version" : "1",
"id" : 15293,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 34988,
"age" : 21
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15296",
"_score" : 1.0,
"_source" : {
"name" : "Headv Skopa",
"@version" : "1",
"id" : 15296,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 70742,
"age" : 40
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15297",
"_score" : 1.0,
"_source" : {
"name" : "Jjkis Cbaci",
"@version" : "1",
"id" : 15297,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 30088,
"age" : 52
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15299",
"_score" : 1.0,
"_source" : {
"name" : "Fanpi Eauvy",
"@version" : "1",
"id" : 15299,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 22330,
"age" : 28
}
},
{
"_index" : "million",
"_type" : "million",
"_id" : "15304",
"_score" : 1.0,
"_source" : {
"name" : "Wcppa Vocpa",
"@version" : "1",
"id" : 15304,
"@timestamp" : "2017-11-16T11:54:58.594Z",
"salary" : 57461,
"age" : 35
}
}
]
}
}
So what is wrong?
You said:
The connection is established and i am able to get host name, hits , etc but not the data in the index.
You have the data, right?
This is done.
Now i need to create parent-child relation in my documents.
There are 2 tables in MySQL.
Employee
+------+-------------+--------+------+
| id | name | salary | age |
+------+-------------+--------+------+
| 0 | Dxgow Xkiuq | 40414 | 33 |
| 1 | Kouni Pecre | 44814 | 41 |
| 2 | Jtwfl Peiyw | 76611 | 37 |
| 3 | Mnpxt Cpprc | 32538 | 31 |
| 4 | Ukhey Uosqg | 90272 | 40 |
| 5 | Eavcg Gqfoo | 43957 | 48 |
| 6 | Bcllu Vhara | 42928 | 32 |
| 7 | Bafna Qeymj | 91398 | 23 |
| 8 | Qxwni Tgwdw | 60973 | 31 |
| 9 | Jpcqc Qtyum | 54696 | 41 |
+------+-------------+--------+------+
Age
+--------------+
| employee_age |
+--------------+
| 20 |
| 21 |
| 22 |
| 23 |
| 24 |
| 25 |
| 26 |
| 27 |
| 28 |
| 29 |
+--------------+
Now while importing this data to elasticsearch via logstash i need to create parent child relationship between these two tables as AGE being the parent and Employee being child.
Similarly to have parent-child relationship to the data which is already in the index.
These are the 2 situation where I am stuck.
That's another non related question.
Please open a new question about this.
Thanks
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.