340 lines
8.9 KiB
Go
340 lines
8.9 KiB
Go
package tengine
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import (
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"bufio"
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"fmt"
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"net"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"sync"
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"time"
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"io"
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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/common/tls"
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"github.com/influxdata/telegraf/plugins/inputs"
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)
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type Tengine struct {
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Urls []string
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ResponseTimeout config.Duration
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tls.ClientConfig
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client *http.Client
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}
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var sampleConfig = `
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# An array of Tengine reqstat module URI to gather stats.
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urls = ["http://127.0.0.1/us"]
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# HTTP response timeout (default: 5s)
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# response_timeout = "5s"
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## Optional TLS Config
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# tls_ca = "/etc/telegraf/ca.pem"
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# tls_cert = "/etc/telegraf/cert.cer"
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# tls_key = "/etc/telegraf/key.key"
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## Use TLS but skip chain & host verification
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# insecure_skip_verify = false
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`
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func (n *Tengine) SampleConfig() string {
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return sampleConfig
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}
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func (n *Tengine) Description() string {
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return "Read Tengine's basic status information (ngx_http_reqstat_module)"
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}
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func (n *Tengine) Gather(acc telegraf.Accumulator) error {
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var wg sync.WaitGroup
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// Create an HTTP client that is re-used for each
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// collection interval
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if n.client == nil {
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client, err := n.createHTTPClient()
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if err != nil {
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return err
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}
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n.client = client
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}
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for _, u := range n.Urls {
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addr, err := url.Parse(u)
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if err != nil {
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acc.AddError(fmt.Errorf("Unable to parse address '%s': %s", u, err))
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continue
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}
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wg.Add(1)
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go func(addr *url.URL) {
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defer wg.Done()
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acc.AddError(n.gatherURL(addr, acc))
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}(addr)
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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 (n *Tengine) createHTTPClient() (*http.Client, error) {
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tlsCfg, err := n.ClientConfig.TLSConfig()
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if err != nil {
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return nil, err
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}
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if n.ResponseTimeout < config.Duration(time.Second) {
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n.ResponseTimeout = config.Duration(time.Second * 5)
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}
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client := &http.Client{
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Transport: &http.Transport{
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TLSClientConfig: tlsCfg,
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},
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Timeout: time.Duration(n.ResponseTimeout),
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}
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return client, nil
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}
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type TengineStatus struct {
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host string
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bytesIn uint64
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bytesOut uint64
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connTotal uint64
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reqTotal uint64
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http2xx uint64
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http3xx uint64
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http4xx uint64
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http5xx uint64
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httpOtherStatus uint64
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rt uint64
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upsReq uint64
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upsRt uint64
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upsTries uint64
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http200 uint64
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http206 uint64
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http302 uint64
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http304 uint64
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http403 uint64
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http404 uint64
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http416 uint64
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http499 uint64
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http500 uint64
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http502 uint64
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http503 uint64
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http504 uint64
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http508 uint64
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httpOtherDetailStatus uint64
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httpUps4xx uint64
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httpUps5xx uint64
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}
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func (n *Tengine) gatherURL(addr *url.URL, acc telegraf.Accumulator) error {
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var tengineStatus TengineStatus
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resp, err := n.client.Get(addr.String())
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if err != nil {
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return fmt.Errorf("error making HTTP request to %s: %s", addr.String(), err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return fmt.Errorf("%s returned HTTP status %s", addr.String(), resp.Status)
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}
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r := bufio.NewReader(resp.Body)
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for {
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line, err := r.ReadString('\n')
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if err != nil || io.EOF == err {
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break
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}
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lineSplit := strings.Split(strings.TrimSpace(line), ",")
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if len(lineSplit) != 30 {
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continue
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}
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tengineStatus.host = lineSplit[0]
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if err != nil {
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return err
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}
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tengineStatus.bytesIn, err = strconv.ParseUint(lineSplit[1], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.bytesOut, err = strconv.ParseUint(lineSplit[2], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.connTotal, err = strconv.ParseUint(lineSplit[3], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.reqTotal, err = strconv.ParseUint(lineSplit[4], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http2xx, err = strconv.ParseUint(lineSplit[5], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http3xx, err = strconv.ParseUint(lineSplit[6], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http4xx, err = strconv.ParseUint(lineSplit[7], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http5xx, err = strconv.ParseUint(lineSplit[8], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.httpOtherStatus, err = strconv.ParseUint(lineSplit[9], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.rt, err = strconv.ParseUint(lineSplit[10], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.upsReq, err = strconv.ParseUint(lineSplit[11], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.upsRt, err = strconv.ParseUint(lineSplit[12], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.upsTries, err = strconv.ParseUint(lineSplit[13], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http200, err = strconv.ParseUint(lineSplit[14], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http206, err = strconv.ParseUint(lineSplit[15], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http302, err = strconv.ParseUint(lineSplit[16], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http304, err = strconv.ParseUint(lineSplit[17], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http403, err = strconv.ParseUint(lineSplit[18], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http404, err = strconv.ParseUint(lineSplit[19], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http416, err = strconv.ParseUint(lineSplit[20], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http499, err = strconv.ParseUint(lineSplit[21], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http500, err = strconv.ParseUint(lineSplit[22], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http502, err = strconv.ParseUint(lineSplit[23], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http503, err = strconv.ParseUint(lineSplit[24], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http504, err = strconv.ParseUint(lineSplit[25], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.http508, err = strconv.ParseUint(lineSplit[26], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.httpOtherDetailStatus, err = strconv.ParseUint(lineSplit[27], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.httpUps4xx, err = strconv.ParseUint(lineSplit[28], 10, 64)
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if err != nil {
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return err
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}
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tengineStatus.httpUps5xx, err = strconv.ParseUint(lineSplit[29], 10, 64)
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if err != nil {
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return err
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}
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tags := getTags(addr, tengineStatus.host)
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fields := map[string]interface{}{
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"bytes_in": tengineStatus.bytesIn,
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"bytes_out": tengineStatus.bytesOut,
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"conn_total": tengineStatus.connTotal,
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"req_total": tengineStatus.reqTotal,
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"http_2xx": tengineStatus.http2xx,
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"http_3xx": tengineStatus.http3xx,
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"http_4xx": tengineStatus.http4xx,
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"http_5xx": tengineStatus.http5xx,
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"http_other_status": tengineStatus.httpOtherStatus,
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"rt": tengineStatus.rt,
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"ups_req": tengineStatus.upsReq,
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"ups_rt": tengineStatus.upsRt,
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"ups_tries": tengineStatus.upsTries,
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"http_200": tengineStatus.http200,
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"http_206": tengineStatus.http206,
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"http_302": tengineStatus.http302,
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"http_304": tengineStatus.http304,
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"http_403": tengineStatus.http403,
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"http_404": tengineStatus.http404,
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"http_416": tengineStatus.http416,
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"http_499": tengineStatus.http499,
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"http_500": tengineStatus.http500,
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"http_502": tengineStatus.http502,
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"http_503": tengineStatus.http503,
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"http_504": tengineStatus.http504,
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"http_508": tengineStatus.http508,
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"http_other_detail_status": tengineStatus.httpOtherDetailStatus,
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"http_ups_4xx": tengineStatus.httpUps4xx,
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"http_ups_5xx": tengineStatus.httpUps5xx,
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}
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acc.AddFields("tengine", fields, tags)
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}
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// Return the potential error of the loop-read
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return err
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}
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// Get tag(s) for the tengine plugin
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func getTags(addr *url.URL, serverName string) map[string]string {
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h := addr.Host
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host, port, err := net.SplitHostPort(h)
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if err != nil {
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host = addr.Host
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if addr.Scheme == "http" {
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port = "80"
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} else if addr.Scheme == "https" {
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port = "443"
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} else {
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port = ""
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}
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}
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return map[string]string{"server": host, "port": port, "server_name": serverName}
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}
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func init() {
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inputs.Add("tengine", func() telegraf.Input {
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return &Tengine{}
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})
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}
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