弹性搜索 java 客户端 mapper_parsing_exception 未能解析文档中 [long] 类型的字段 [timeStamp]？

Question

I am accessing elastic search by java client. i was inserting date as timestamp in long. but now want to store in like 2019-12-02T12:08:54.053Z . i am getting bellow error.

"type":"mapper_parsing_exception","reason":"failed to parse field [timeStamp] of type [long] in document

however i did not set any kind of data type for time stamp field, then why i am getting such kind of exception. is there any chance because of old record i am getting above error.

please help.

Answer 1

This is a feature of elasticsearch called dynamic mappings, when elasticsearch see a new field, it'll try to deduce the type of this field according to certain rules that you can find in their documentation https://www.elastic.co/guide/en/elasticsearch/reference/current/dynamic-field-mapping.html

Your field timeStamp is mapped as long, and when you try to insert a date in this field it cause an exception.

You have to re-index all of your data or save the timeStamp as long