CODEWITHSUNDEEP
elasticsearch
Eli Sorey
Eli Sorey

Reputation: 21

Elasticsearch - Reindex Picks Up No Documents

ES newbie here. I want to move documents from one index to another, based on a criterion. I've been using the Reindex API, specifically the version that takes a query - docs here: https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-reindex.html

I've been POST-ing the following query to <root_es_uri>/_reindex.

{
  "source": {
    "index": <EXISTING_SOURCE_INDEX>,
    "type": "_doc",
    "query": {
      "term": {
        "domain": <A SPECIFIC DOMAIN>
      }
    }
  },
  "dest": {
    "index": <AN EXISTING EMPTY INDEX>
  }
}

Running this yields the following:

{
    "took": 37,
    "timed_out": false,
    "total": 0,
    "updated": 0,
    "created": 0,
    "deleted": 0,
    "batches": 0,
    "version_conflicts": 0,
    "noops": 0,
    "retries": {
        "bulk": 0,
        "search": 0
    },
    "throttled_millis": 0,
    "requests_per_second": -1,
    "throttled_until_millis": 0,
    "failures": []
}

So it "succeeds", but picks up no documents to move. When I run the query from the _reindex call against the _search endpoint of the source index, it returns all the documents I want moved, so I know my query is legitimate. At first I thought that perhaps the source index is configured not to allow reindexing like this, but I ran a _reindex command without the query (ie, copying all documents from the source index) and it worked. Thanks in advance!

Upvotes: 1

Views: 814

Answers (1)

Eli Sorey
Eli Sorey

Reputation: 21

I fixed it. The problem was the _type field on the request; the documents I was interested in moving did not have type _doc. Changing this field to the appropriate value solved the issue.

Upvotes: 1

Related Questions