reindex

reindex数据复制，重索引
POST _reindex
{
“source”: {
“index”: “twitter”
},
“dest”: {
“index”: “new_twitter”
}
}

https://www.cnblogs.com/bigbigtree/p/6829625.html

elasticsearch空index搜索排序报错问题( No mapping found for [avg_pv] in order to sort on)

https://blog.csdn.net/caojianwei1992/article/details/88971733

没有定义mapping

https://cloud.tencent.com/developer/article/1465122
https://github.com/elastic/elasticsearch/issues/5836