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1、Elasticsearch的索引维护功能集

三者关系

mysql表--->mapping json文件<--->es index mapping

1、mysql--->json 生成表对应的默认创建mapping的json文件。

2、json-----> es index mapping 根据json文件创建es index mapping

3、es index mapping---->json 生成备份的mapping json文件.

2、根据Mysql生成logstatsh的增量同步功能

mysql 表--->生成logstash的同步sql

TODO elasticsearch 修改 mapping https://www.cnblogs.com/ExMan/p/11385931.html

创建index时，应使用同义词创建，即real_,当前的程序没有采用这种策略。