How to enable query logging in Spring-data-elasticsearch

Question

I use spring-data-elasticsearch framework to get query result from elasticsearch server, the java code like this:

SearchQuery searchQuery = new NativeSearchQueryBuilder()
.withQuery(matchAllQuery()).withSearchType(SearchType.COUNT)
.addAggregation(new MinBuilder("min_createDate").field("createDate"))
.build();

List<Entity> list = template.queryForList(searchQuery, Entity.class);

While how can I know the raw http query sent to elasticssearch server? How can I enable the logging, I tried add log4j, but it seems the spring-data-elasticsearch doesn't log the query.

Answer 1

After digging through the spring data code i found this helpful little logger called "tracer" (name not very unique)

By setting the following in application.properties

logging.level.tracer=TRACE

It will print out a full curl statement for the request along with full JSON the response from Elasticsearch.

Answer 2

This one is quite old, but I'd still like to share the solution that worked for me. To log Spring Data Elasticsearch queries executed through the Repository, you need to enable DEBUG logging for the package org.springframework.data.elasticsearch.core.*, e.g. as follows:

logging:
  level:
    org:
      springframework:
        data:
          elasticsearch:
            core: DEBUG

After that, queries will appear in logs:

{
  "from" : 0,
  "size" : 1,
  "query" : {
    "bool" : {
      "should" : [ {
        "query_string" : {
          "query" : "John Doe",
          "fields" : [ "entityName" ],
          "default_operator" : "and"
        }
      }, {
        "query_string" : {
          "query" : "John Doe",
          "fields" : [ "alias" ],
          "default_operator" : "and"
        }
      } ]
    }
  },
  "post_filter" : {
    "bool" : { }
  }
}

One would expect an elegant solution similar to JPA, but it seems that it doesn't simply exist.

Tested with Spring Boot 1.4.0 and Spring Data Elasticsearch 1.7.3.