Test sniffing/healthcheck

main.go

package main

import (
	"fmt"

	"flag"

	"github.com/olivere/elastic"
)

func main() {
	url := flag.String("url", "http://localhost:9200/", "Elasticsearch server (default: http://localhost:9200/)")
	flag.Parse()
	for _, c := range []struct{ health, sniff bool }{
		{true, true},
		{true, false},
		{false, true},
		{false, false},
	} {
		opts := []elastic.ClientOptionFunc{
			elastic.SetURL(*url),
			elastic.SetHealthcheck(c.health),
			elastic.SetSniff(c.sniff),
		}
		fmt.Printf("health=%v, sniff=%v - ", c.health, c.sniff)
		client, err := elastic.NewClient(opts...)
		if err != nil {
			fmt.Printf("err=%v\n", err)
		} else {
			v, e := client.ElasticsearchVersion(*url)
			fmt.Printf("version=%v, version_err=%v, ", v, e)
			i, e := client.IndexNames()
			fmt.Printf("index_count=%d, index_err=%v\n", len(i), e)
		}
	}

}