copy elasticsearch data from old index to new one

Question

When I try to reindex my data, I get a lot of errors (code: 500)

POST /_reindex
{
  "source": {
    "index": "cwl-2021.01.06"
  },
  "dest": {
    "index": "mycwl1"
  }
}

How to avoid this?

{
  "index" : "mycwl1",
  "type" : "_doc",
  "id" : "35902178269278834817532895131701574511225501380192894978",
  "cause" : {
    "type" : "mapper_exception",
    "reason" : "timed out while waiting for a dynamic mapping update"
  },
  "status" : 500
}

Answer 1

等待大神答复