ES索引分割方式汇总(持续中)

5.x版本使用reindex进行分割：

#创建时间取余3进行分割，分割成3个索引
_reindex?wait_for_completion=false
{
  "conflicts": "proceed",
  "source": {
    "index": "yourIndex"
  },
  "dest": {
    "index": "yourIndex-"
  },
  "script": {
    "inline": "ctx._index='yourIndex-' + Long.valueOf(ctx._source.createTime%3).toString();"
  }
}
#按照id hashcode进行区分
{
  "conflicts": "proceed",
  "source": {
    "index": "yourIndex"
  },
  "dest": {
    "index": "yourIndex-"
  },
  "script": {
    "inline": "ctx._index='yourIndex-'+((int)Math.abs(ctx._id.hashCode()%2));"
  }
}