Analyzers and Content Length

Elastic Stack Elasticsearch
5

Alexander, If I strip the PostBody mapping down to

{
  "PostBody" : {
      "type": "text"
  }
}

then ingestion succeeds.

This also leads to successful ingestion.

     "PostBody" : {
        "type" : "text",
        "fields" : {
          "keyword" : {
            "type": "keyword",
            "ignore_above": 256
          }
        }
      }

And this also leads to successful ingestion

      "PostBody" : {
        "type" : "text",
        "fields" : {
          "keyword" : {
            "type": "keyword",
            "ignore_above": 256
          },
          "cloud" : {
            "type" : "text",
            "analyzer" : "my_stop_analyzer",
            "search_analyzer" : "my_stop_analyzer",
            "fielddata" : true
          }
        }
      }

Unfortunately, if I add the ending multi-field or the two root analyzers then things explode with the same error message mentioned above, in the origin post.

Ideas? (Thanks for your help, by the way!)