如何删除elasticsearch索引中的多个id文档

Question

var elasticsearch = require('elasticsearch');
var client = new elasticsearch.Client({
    host: 'ABC',
    log: 'trace',
    apiVersion: '7.1'
});
client.delete({
        index: 'allevents',
        type: '_doc',
        id:"2"
    }).then(function(resp) {
        console.log("Successful query!");
        console.log(JSON.stringify(resp, null, 4));
    }, function(err) {
        console.trace(err.message);
    });

当我通过传递单个 id 值删除单个文档时，它工作正常。

但我想在单个查询中删除多个文档。我们会怎么做？

我试过

 client.delete({
    index: 'allevents',
    type: '_doc',
    id: ["2","3"]
})

该函数返回错误。

Answer 1

我建议利用bulk方法/ API，如下所示：

var elasticsearch = require('elasticsearch');
var client = new elasticsearch.Client({
    host: 'ABC',
    log: 'trace',
    apiVersion: '7.1'
});

var idsToDelete = ["2", "3"];
var bulk = idsToDelete.map(id => {
  return {
     'delete': {
        '_index': 'allevents',
        '_type': '_doc',
        '_id': id
     }
  };
});

client.bulk({
      body: bulk
    }).then(function(resp) {
        console.log("Successful query!");
        console.log(JSON.stringify(resp, null, 4));
    }, function(err) {
        console.trace(err.message);
    });

另一种方法是利用deleteByQuery方法/ API：

var elasticsearch = require('elasticsearch');
var client = new elasticsearch.Client({
    host: 'ABC',
    log: 'trace',
    apiVersion: '7.1'
});

var idsToDelete = ["2", "3"];

client.deleteByQuery({
      index: 'allevents',
      type: '_doc',
      body: {
        query: {
          terms: {
            _id: idsToDelete
          }
        }
      }
    }).then(function(resp) {
        console.log("Successful query!");
        console.log(JSON.stringify(resp, null, 4));
    }, function(err) {
        console.trace(err.message);
    });