处理并发读写操作

DELETE  products
PUT products
PUT products/_doc/1
{
  "title":"iphone",
  "count":100
}

GET  products/_doc/1

PUT products/_doc/1?if_seq_no=0&if_primary_term=1
{
  "title":"iphone",
  "count":100
}

PUT products/_doc/1?if_seq_no=0&if_primary_term=1
{
  "title":"iphone",
  "count":103
}

PUT products/_doc/1?version=30000&version_type=external
{
  "title":"iphone",
  "count":100
}

GET  products/_doc/1

PUT products/_doc/1?version=2888&version_type=external
{
  "title":"iphone",
  "count":102
}