elasticsearch筆記(6) 刪除文檔delete-by-query

根據term, match等查詢方式去刪除大量的文檔.

ps:如果是大量的刪除，不推薦這個方式，太耗時了，因為是根據查詢的id一個一個刪除，而查詢本身也很消耗性能，推薦新建一個index，把保留的部分保留到新的index

 

 在java中用索引刪除

 

    @Test
    public void deletByQueryTest() throws IOException {
        //創建DeleteByQueryRequest對象
    String index = "sms-logs-index";
    String type = "sms-logs-type";
    DeleteByQueryRequest deleteByQueryRequest = new DeleteByQueryRequest(index);
    deleteByQueryRequest.types(type);
   //指定刪除條件
    RangeQueryBuilder fee = QueryBuilders.rangeQuery("fee").lt(20).gt(10);
    deleteByQueryRequest.setQuery(fee);
   //創建查詢對象
    HttpHost httpHost = new HttpHost("192.168.43.30", 9200);
    RestClientBuilder restClientBuilder = RestClient.builder(httpHost);
    RestHighLevelClient restHighLevelClient = new RestHighLevelClient(restClientBuilder);
    //執行刪除
    BulkByScrollResponse bulkByScrollResponse = restHighLevelClient.deleteByQuery(deleteByQueryRequest, RequestOptions.DEFAULT);
    System.out.println(bulkByScrollResponse);

}