golang es设置index max_result_window

在设置的时候需要对数字使用字符串类型。

{
  "settings": {
    "index": {
      "max_result_window": "1000000000"
    }
  }
}

添加索引名时必须加上"_index"后缀，并且只有在有数据的时候，才能修改成功。

第三方包为github.com/olivere/elastic/v7。

var AddrOption = func(adds []string) elastic.ClientOptionFunc {
	return elastic.SetURL(adds...)
}
var AuthOption = func(username, password string) elastic.ClientOptionFunc {
	return elastic.SetBasicAuth(
		username, //账号
		password, //密码
	)
}

var InfoLogOption = func() elastic.ClientOptionFunc {
	return elastic.SetInfoLog(log.New(os.Stdout, "", log.LstdFlags)) //INFO级别日志输出配置
}


func newConn(options ...elastic.ClientOptionFunc) *elastic.Client {
	options = append(options,
		elastic.SetSniff(false),
		elastic.SetHealthcheck(true),
		elastic.SetHealthcheckInterval(30*time.Second),
	)
	con, err := elastic.NewClient(options...)
	if err != nil {
		panic(err)
	}
	return con
}

var globalClient *Client

type Client struct {
	conn *elastic.Client
}

func NewEsClient(options ...elastic.ClientOptionFunc) *Client {
	if globalClient == nil {
		globalClient = &Client{conn: newConn(options...)}
	}
	return globalClient
}

const (
	idx = "this_is_a_test_index"
)


func es() {
......
	ctx := context.Background()
	c := NewEsClient(AddrOption (strings.Split("http://192.168.0.2:59201", ",")), InfoLogOption(), AuthOption("elastic", "qd12Qs341"))

	doc := elastic.NewBulkUpdateRequest().
		Index(idx).
		Id((uuid.New()).String()).
		Doc(string(data)).
		DocAsUpsert(true)
	c.conn.Bulk().Add(doc).Do(ctx)

	c.conn.Search().Index(idx).TrackTotalHits(true).Do(ctx)
	c.conn.IndexPutSettings(idx).BodyString(`{
  "settings": {
    "index": {
      "max_result_window": "1000000000"
    }
  }
}
`).Do(ctx)

}