Adding upstream version 1.34.4.
Signed-off-by: Daniel Baumann <daniel@debian.org>
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4963 changed files with 677545 additions and 0 deletions
282
plugins/inputs/uwsgi/uwsgi.go
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282
plugins/inputs/uwsgi/uwsgi.go
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// Package uwsgi implements a telegraf plugin for collecting uwsgi stats from
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// the uwsgi stats server.
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//
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//go:generate ../../../tools/readme_config_includer/generator
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package uwsgi
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import (
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_ "embed"
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"encoding/json"
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"fmt"
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"io"
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"net"
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"net/http"
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"net/url"
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"os"
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"strconv"
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"sync"
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"time"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/config"
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"github.com/influxdata/telegraf/plugins/inputs"
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)
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//go:embed sample.conf
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var sampleConfig string
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type Uwsgi struct {
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Servers []string `toml:"servers"`
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Timeout config.Duration `toml:"timeout"`
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client *http.Client
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}
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// statsServer defines the stats server structure.
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type statsServer struct {
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// Tags
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source string
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PID int `json:"pid"`
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UID int `json:"uid"`
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GID int `json:"gid"`
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Version string `json:"version"`
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// Fields
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ListenQueue int `json:"listen_queue"`
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ListenQueueErrors int `json:"listen_queue_errors"`
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SignalQueue int `json:"signal_queue"`
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Load int `json:"load"`
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Workers []*worker `json:"workers"`
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}
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// worker defines the worker metric structure.
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type worker struct {
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// Tags
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WorkerID int `json:"id"`
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PID int `json:"pid"`
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// Fields
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Accepting int `json:"accepting"`
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Requests int `json:"requests"`
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DeltaRequests int `json:"delta_requests"`
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Exceptions int `json:"exceptions"`
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HarakiriCount int `json:"harakiri_count"`
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Signals int `json:"signals"`
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SignalQueue int `json:"signal_queue"`
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Status string `json:"status"`
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Rss int `json:"rss"`
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Vsz int `json:"vsz"`
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RunningTime int `json:"running_time"`
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LastSpawn int `json:"last_spawn"`
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RespawnCount int `json:"respawn_count"`
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Tx int `json:"tx"`
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AvgRt int `json:"avg_rt"`
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Apps []*app `json:"apps"`
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Cores []*core `json:"cores"`
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}
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// app defines the app metric structure.
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type app struct {
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// Tags
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AppID int `json:"id"`
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// Fields
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Modifier1 int `json:"modifier1"`
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Requests int `json:"requests"`
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StartupTime int `json:"startup_time"`
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Exceptions int `json:"exceptions"`
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}
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// core defines the core metric structure.
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type core struct {
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// Tags
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CoreID int `json:"id"`
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// Fields
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Requests int `json:"requests"`
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StaticRequests int `json:"static_requests"`
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RoutedRequests int `json:"routed_requests"`
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OffloadedRequests int `json:"offloaded_requests"`
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WriteErrors int `json:"write_errors"`
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ReadErrors int `json:"read_errors"`
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InRequest int `json:"in_request"`
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}
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func (*Uwsgi) SampleConfig() string {
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return sampleConfig
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}
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func (u *Uwsgi) Gather(acc telegraf.Accumulator) error {
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if u.client == nil {
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u.client = &http.Client{
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Timeout: time.Duration(u.Timeout),
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}
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}
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wg := &sync.WaitGroup{}
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for _, s := range u.Servers {
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wg.Add(1)
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go func(s string) {
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defer wg.Done()
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n, err := url.Parse(s)
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if err != nil {
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acc.AddError(fmt.Errorf("could not parse uWSGI Stats Server url %q: %w", s, err))
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return
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}
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if err := u.gatherServer(acc, n); err != nil {
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acc.AddError(err)
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return
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}
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}(s)
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}
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wg.Wait()
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return nil
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}
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func (u *Uwsgi) gatherServer(acc telegraf.Accumulator, address *url.URL) error {
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var err error
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var r io.ReadCloser
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var s statsServer
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switch address.Scheme {
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case "tcp":
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r, err = net.DialTimeout(address.Scheme, address.Host, time.Duration(u.Timeout))
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if err != nil {
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return err
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}
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s.source = address.Host
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case "unix":
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r, err = net.DialTimeout(address.Scheme, address.Path, time.Duration(u.Timeout))
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if err != nil {
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return err
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}
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s.source, err = os.Hostname()
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if err != nil {
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s.source = ""
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}
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case "http":
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resp, err := u.client.Get(address.String()) //nolint:bodyclose // response body is closed after switch
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if err != nil {
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return err
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}
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r = resp.Body
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s.source = address.Host
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default:
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return fmt.Errorf("%q is not a supported scheme", address.Scheme)
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}
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defer r.Close()
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if err := json.NewDecoder(r).Decode(&s); err != nil {
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return fmt.Errorf("failed to decode json payload from %q: %w", address.String(), err)
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}
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gatherStatServer(acc, &s)
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return err
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}
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func gatherStatServer(acc telegraf.Accumulator, s *statsServer) {
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fields := map[string]interface{}{
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"listen_queue": s.ListenQueue,
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"listen_queue_errors": s.ListenQueueErrors,
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"signal_queue": s.SignalQueue,
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"load": s.Load,
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"pid": s.PID,
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}
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tags := map[string]string{
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"source": s.source,
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"uid": strconv.Itoa(s.UID),
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"gid": strconv.Itoa(s.GID),
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"version": s.Version,
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}
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acc.AddFields("uwsgi_overview", fields, tags)
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gatherWorkers(acc, s)
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gatherApps(acc, s)
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gatherCores(acc, s)
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}
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func gatherWorkers(acc telegraf.Accumulator, s *statsServer) {
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for _, w := range s.Workers {
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fields := map[string]interface{}{
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"requests": w.Requests,
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"accepting": w.Accepting,
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"delta_request": w.DeltaRequests,
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"exceptions": w.Exceptions,
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"harakiri_count": w.HarakiriCount,
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"pid": w.PID,
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"signals": w.Signals,
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"signal_queue": w.SignalQueue,
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"status": w.Status,
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"rss": w.Rss,
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"vsz": w.Vsz,
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"running_time": w.RunningTime,
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"last_spawn": w.LastSpawn,
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"respawn_count": w.RespawnCount,
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"tx": w.Tx,
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"avg_rt": w.AvgRt,
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}
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tags := map[string]string{
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"worker_id": strconv.Itoa(w.WorkerID),
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"source": s.source,
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}
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acc.AddFields("uwsgi_workers", fields, tags)
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}
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}
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func gatherApps(acc telegraf.Accumulator, s *statsServer) {
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for _, w := range s.Workers {
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for _, a := range w.Apps {
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fields := map[string]interface{}{
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"modifier1": a.Modifier1,
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"requests": a.Requests,
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"startup_time": a.StartupTime,
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"exceptions": a.Exceptions,
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}
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tags := map[string]string{
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"app_id": strconv.Itoa(a.AppID),
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"worker_id": strconv.Itoa(w.WorkerID),
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"source": s.source,
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}
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acc.AddFields("uwsgi_apps", fields, tags)
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}
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}
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}
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func gatherCores(acc telegraf.Accumulator, s *statsServer) {
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for _, w := range s.Workers {
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for _, c := range w.Cores {
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fields := map[string]interface{}{
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"requests": c.Requests,
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"static_requests": c.StaticRequests,
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"routed_requests": c.RoutedRequests,
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"offloaded_requests": c.OffloadedRequests,
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"write_errors": c.WriteErrors,
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"read_errors": c.ReadErrors,
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"in_request": c.InRequest,
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}
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tags := map[string]string{
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"core_id": strconv.Itoa(c.CoreID),
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"worker_id": strconv.Itoa(w.WorkerID),
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"source": s.source,
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}
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acc.AddFields("uwsgi_cores", fields, tags)
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}
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}
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}
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func init() {
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inputs.Add("uwsgi", func() telegraf.Input {
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return &Uwsgi{
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Timeout: config.Duration(5 * time.Second),
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}
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})
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}
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