93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
|
package rethinkdb
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"net/url"
|
||
|
|
"sync"
|
||
|
|
|
||
|
|
"github.com/influxdb/telegraf/plugins"
|
||
|
|
|
||
|
|
"gopkg.in/dancannon/gorethink.v1"
|
||
|
|
)
|
||
|
|
|
||
|
|
type RethinkDB struct {
|
||
|
|
Servers []string
|
||
|
|
}
|
||
|
|
|
||
|
|
var sampleConfig = `
|
||
|
|
# An array of URI to gather stats about. Specify an ip or hostname
|
||
|
|
# with optional port add password. ie rethinkdb://user:auth_key@10.10.3.30:28105,
|
||
|
|
# rethinkdb://10.10.3.33:18832, 10.0.0.1:10000, etc.
|
||
|
|
#
|
||
|
|
# If no servers are specified, then 127.0.0.1 is used as the host and 28015 as the port.
|
||
|
|
servers = ["127.0.0.1:28015"]`
|
||
|
|
|
||
|
|
func (r *RethinkDB) SampleConfig() string {
|
||
|
|
return sampleConfig
|
||
|
|
}
|
||
|
|
|
||
|
|
func (r *RethinkDB) Description() string {
|
||
|
|
return "Read metrics from one or many RethinkDB servers"
|
||
|
|
}
|
||
|
|
|
||
|
|
var localhost = &Server{Url: &url.URL{Host: "127.0.0.1:28015"}}
|
||
|
|
|
||
|
|
// Reads stats from all configured servers accumulates stats.
|
||
|
|
// Returns one of the errors encountered while gather stats (if any).
|
||
|
|
func (r *RethinkDB) Gather(acc plugins.Accumulator) error {
|
||
|
|
if len(r.Servers) == 0 {
|
||
|
|
r.gatherServer(localhost, acc)
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
var wg sync.WaitGroup
|
||
|
|
|
||
|
|
var outerr error
|
||
|
|
|
||
|
|
for _, serv := range r.Servers {
|
||
|
|
u, err := url.Parse(serv)
|
||
|
|
if err != nil {
|
||
|
|
return fmt.Errorf("Unable to parse to address '%s': %s", serv, err)
|
||
|
|
} else if u.Scheme == "" {
|
||
|
|
// fallback to simple string based address (i.e. "10.0.0.1:10000")
|
||
|
|
u.Host = serv
|
||
|
|
}
|
||
|
|
wg.Add(1)
|
||
|
|
go func(serv string) {
|
||
|
|
defer wg.Done()
|
||
|
|
outerr = r.gatherServer(&Server{Url: u}, acc)
|
||
|
|
}(serv)
|
||
|
|
}
|
||
|
|
|
||
|
|
wg.Wait()
|
||
|
|
|
||
|
|
return outerr
|
||
|
|
}
|
||
|
|
|
||
|
|
func (r *RethinkDB) gatherServer(server *Server, acc plugins.Accumulator) error {
|
||
|
|
var err error
|
||
|
|
connectOpts := gorethink.ConnectOpts{
|
||
|
|
Address: server.Url.Host,
|
||
|
|
DiscoverHosts: false,
|
||
|
|
}
|
||
|
|
if server.Url.User != nil {
|
||
|
|
pwd, set := server.Url.User.Password()
|
||
|
|
if set && pwd != "" {
|
||
|
|
connectOpts.AuthKey = pwd
|
||
|
|
}
|
||
|
|
}
|
||
|
|
server.session, err = gorethink.Connect(connectOpts)
|
||
|
|
if err != nil {
|
||
|
|
return fmt.Errorf("Unable to connect to RethinkDB, %s\n", err.Error())
|
||
|
|
}
|
||
|
|
defer server.session.Close()
|
||
|
|
|
||
|
|
return server.gatherData(acc)
|
||
|
|
}
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
plugins.Add("rethinkdb", func() plugins.Plugin {
|
||
|
|
return &RethinkDB{}
|
||
|
|
})
|
||
|
|
}
|