Doc_value in murmur3 hash

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1

Continuing a previous question.

What am I trying to do?

Thanks to @AndreiStefan I'm trying to put a murmur3 hash off the heap, using doc_values:

"dynamic_templates": [
{
  "murmur3_hashed": {
    "mapping": {
      "index": "not_analyzed",
      "norms": {
        "enabled": false
      },
      "fielddata": {
        "format": "doc_values"
      },
      "doc_values": true,
      "type": "string",
      "fields": {
        "hash": {
          "index": "no",
          "doc_values": true,
          "type": "murmur3"
        }
      }
    },
    "match_mapping_type": "string",
    "match": "my_prop"
  }
}
]

I used stream2es for reindexing.

What is the result?

After a reindexing, the result property is:

  "my_prop": {
    "index": "not_analyzed",
    "fielddata": {
      "format": "doc_values"
    },
    "doc_values": true,
    "type": "string",
    "fields": {
      "hash": {
        "null_value": -1,
        "precision_step": 2147483647,
        "type": "murmur3"
      }
    }
  },

What is the problem?

Why is the "index": "no", "doc_values": true missing in the result property?

2

I have seen this before with stream2es. Something to do with dynamic templates. To workaround this, you can first create the target index (empty one) using the updated index template (which has the dynamic template changes). Then run stream2es (instead of having stream2es auto-create the target index).