CODEWITHSUNDEEP
elasticsearch
psorensen
psorensen

Reputation: 827

Elasticseach Multisearch only returns 1 set of results

I'm trying to return multiple "buckets" of results from Elasticsearch in one HTTP request.

I'm using the _msearch API.

I'm using the following query:

POST /_msearch

{"index" : "[INDEXNAME]", "type":"post"}
{"query" : {"match" : {"post_type":"team-member"}}, "from" : 0, "size" : 10}
{"index" : "[INDEXNAME]", "type": "post"}
{"query" : {"match" : {"post_type": "article"}}, "from" : 0, "size" : 10}

The query executes without error, but the results only return one object, where it seems it shoul be two (one for the 10 team-members, and one for the 10 articles):

    {
        "responses": [
            {
                "took": 1,
                "timed_out": false,
                "_shards": {
                    "total": 4,
                    "successful": 4,
                    "failed": 0
                },
                "hits": {
                    "total": 191,
                    "max_score": 3.825032,
                    "hits": [
                       {...}
                    ]
                }
            }, // second query should be here, no?
        ]
    }

Is my query construction wrong, or am I misunderstanding how this should work?

Upvotes: 2

Views: 836

Answers (2)

Cosmin Ababei
Cosmin Ababei

Reputation: 7072

The format of a _msearch request must follow the bulk API format. It must look something like this:

header\n
body\n
header\n
body\n

The header part includes which index / indices to search on, optional (mapping) types to search on, the search_type, preference, and routing. The body includes the typical search body request (including the query, aggregations, from, size, and so on).

NOTE: the final line of data must end with a newline character \n.

Make sure your query follows this format (from your code example, depending on the environment, as you've added two new lines after POST /_msearch, your query may or may not work; you should only add one new line) . If the responses array only has one result, then, in your case, the last query is somehow discarded - again, check its format.

Upvotes: 2

DamienL
DamienL

Reputation: 19

I don't see any problem actually, but you should check "Bulk API", it's similar. https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html

Upvotes: 1

Related Questions