Elastic change index mapping

elastic.http

# get valid mapping and fix it
GET /test.activity_log_v1

# create new indewx with fixed mapping
PUT /test.activity_log_v2/ 
{
  "mappings": {
      "properties": {
        "action": {
          "type": "keyword"
        },
        "createdAt": {
          "type": "date"
        },
        "entity": {
          "type": "keyword"
        },
        "entityId": {
          "type": "long"
        },
        "entityName": {
          "type": "keyword"
        },
        "entityState": {
          "type": "object",
          "enabled": false
        },
        "userId": {
          "type": "long"
        }
      }
    },
    "settings": {
      "index": {
        "number_of_shards": "5",
        "number_of_replicas": "0"
      }
    }
}

# reindex from old index to new
POST _reindex
{
  "source": {
    "index": ["test.activity_log_v1"]
  },
  "dest": {
    "index": "test.activity_log_v2"
  }
}

# replace alias
POST /_aliases
{
    "actions" : [
        { "remove" : { "index" : "test.activity_log_v1", "alias" : "test.activity_log" } },
        { "add" : { "index" : "test.activity_log_v2", "alias" : "test.activity_log" } }
    ]
}

# drop old
DELETE /test.activity_log_v1