How to setup a tokenizer in elasticsearch

Question

I have an embedded elasticsearch using the elasticsearch-jetty project, and I need to setup to use tokenizers better than the defaults. I want to use the keyword tokenizer.<

Answer 1

You can define mappings in the config files, but for most cases it is easier/more flexible to configure through the API. For example, this command will add a keyword/lowercase analyzer to the index test:

$ curl -XPUT localhost:9200/testindex/ -d '
{
  "settings":{
     "index":{
        "analysis":{
           "analyzer":{
              "analyzer_keyword":{
                 "tokenizer":"keyword",
                 "filter":"lowercase"
              }
           }
        }
     }
  },
  "mappings":{
     "test":{
        "properties":{
           "title":{
              "analyzer":"analyzer_keyword",
              "type":"string"
           }
        }
     }
  }
}'

Answer 2

To update an existing index, use

$ curl -XPUT localhost:9200/testindex/_settings -d '
{
..........
}

However you can't update non dynamic settings.