I am seeing a strange problem. I am running Elasticsearch version 1.7.5. I have created a mapping:
{
"ali-development": {
"mappings": {
"lead": {
"dynamic": "false",
"properties": {
...several fields omitted for brevity...
"custom_fields": {
"type": "nested",
"include_in_root": true,
"properties": {
"custom_field_definition_id": {
"type": "long",
"doc_values": true,
"include_in_all": false
},
"float_value": {
"type": "float",
"doc_values": true,
"include_in_all": false
},
"integer_value": {
"type": "integer",
"doc_values": true,
"include_in_all": false
},
"option_id": {
"type": "long",
"doc_values": true,
"include_in_all": false
},
"string_value": {
"type": "string",
"index": "not_analyzed",
"doc_values": true,
"include_in_all": false
},
"string_value_espp_downcase": {
"type": "string",
"index": "not_analyzed",
"doc_values": true,
"include_in_all": false
}
}
}
}
}
}
}
}
In my automated test suite, in the middle of a bulk indexing opertion, I am attempting to insert a document with multiple custom_field_definition_ids:
{
...more data omitted...
"custom_fields": [
{
"string_value": null,
"id": 7,
"custom_field_definition_id": 2,
"integer_value": null,
"float_value": 3.0,
"option_id": null,
"string_value_espp_downcase": null
},
{
"string_value": null,
"id": 8,
"custom_field_definition_id": 3,
"integer_value": 1442871695,
"float_value": null,
"option_id": null,
"string_value_espp_downcase": null
},
{
"string_value": null,
"id": 9,
"custom_field_definition_id": 4,
"integer_value": null,
"float_value": 1.0,
"option_id": null,
"string_value_espp_downcase": null
}
]
}
On one specific environment, this produces an error:
{
"index": {
"_index": "ali-test",
"_type": "lead",
"_id": "entity_type:21/entity_id:6",
"status": 500,
"error": "IllegalArgumentException[DocValuesField "custom_fields.custom_field_definition_id" appears more than once in this document (only one value is allowed per field)]"
}
},
Nothing in the documentation for doc_values says anything about requiring values in a doc_values field to be unique. Also, it's really strange that this error is only happening on one particular environment. I can create this document on other environments without any problems at all. What's going on? Is this a symptom of an underlying problem? Any way I can get some better diagnostic info?