从一个索引中提取出部分数据到新的索引中

    1. # reindex data by filter
    2. # POST _reindex?wait_for_completion=false
    3. {
    4.   "source": {
    5.     "index": "source_idx",
    6.     "size" : 10000,
    7.     "query": {
    8.       "bool": {
    9.         "filter": [
    10.           {
    11.             "range": {
    12.               "event_time": {
    13.                 "gte": "2019-04-04||/M",
    14.                 "lt": "2019-04-04"
    15.               }
    16.             }
    17.           }
    18.         ]
    19.       }
    20.     }
    21.   },
    22.   "dest": {
    23.     "index": "dest_idx"
    24.   }
    25. }

    :::tips size表示ES一次重索引的文档数量(用的bulk接口) :::

    reindex时使用pipeline

    1. # POST _reindex?wait_for_completion=false
    2. {
    3.   "source": {
    4.     "index": "source_idx",
    5.     "size" : 10000
    6.   },
    7.   "dest": {
    8.     "index": "dest_idx",
    9.     "pipeline": "monthlyindex"
    10.   }
    11. }

    建议看看reindex的官方文档