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
290
plugins/inputs/couchdb/couchdb.go
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290
plugins/inputs/couchdb/couchdb.go
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@ -0,0 +1,290 @@
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//go:generate ../../../tools/readme_config_includer/generator
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package couchdb
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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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"net/http"
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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/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 CouchDB struct {
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Hosts []string `toml:"hosts"`
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BasicUsername string `toml:"basic_username"`
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BasicPassword string `toml:"basic_password"`
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client *http.Client
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}
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type (
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metaData struct {
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Current *float64 `json:"current"`
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Sum *float64 `json:"sum"`
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Mean *float64 `json:"mean"`
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Stddev *float64 `json:"stddev"`
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Min *float64 `json:"min"`
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Max *float64 `json:"max"`
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Value *float64 `json:"value"`
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}
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oldValue struct {
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Value metaData `json:"value"`
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metaData
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}
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couchdb struct {
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AuthCacheHits metaData `json:"auth_cache_hits"`
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AuthCacheMisses metaData `json:"auth_cache_misses"`
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DatabaseWrites metaData `json:"database_writes"`
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DatabaseReads metaData `json:"database_reads"`
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OpenDatabases metaData `json:"open_databases"`
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OpenOsFiles metaData `json:"open_os_files"`
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RequestTime oldValue `json:"request_time"`
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HttpdRequestMethods httpdRequestMethods `json:"httpd_request_methods"`
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HttpdStatusCodes httpdStatusCodes `json:"httpd_status_codes"`
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}
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httpdRequestMethods struct {
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Put metaData `json:"PUT"`
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Get metaData `json:"GET"`
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Copy metaData `json:"COPY"`
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Delete metaData `json:"DELETE"`
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Post metaData `json:"POST"`
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Head metaData `json:"HEAD"`
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}
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httpdStatusCodes struct {
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Status200 metaData `json:"200"`
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Status201 metaData `json:"201"`
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Status202 metaData `json:"202"`
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Status301 metaData `json:"301"`
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Status304 metaData `json:"304"`
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Status400 metaData `json:"400"`
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Status401 metaData `json:"401"`
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Status403 metaData `json:"403"`
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Status404 metaData `json:"404"`
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Status405 metaData `json:"405"`
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Status409 metaData `json:"409"`
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Status412 metaData `json:"412"`
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Status500 metaData `json:"500"`
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}
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httpd struct {
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BulkRequests metaData `json:"bulk_requests"`
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Requests metaData `json:"requests"`
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TemporaryViewReads metaData `json:"temporary_view_reads"`
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ViewReads metaData `json:"view_reads"`
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ClientsRequestingChanges metaData `json:"clients_requesting_changes"`
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}
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stats struct {
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Couchdb couchdb `json:"couchdb"`
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HttpdRequestMethods httpdRequestMethods `json:"httpd_request_methods"`
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HttpdStatusCodes httpdStatusCodes `json:"httpd_status_codes"`
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Httpd httpd `json:"httpd"`
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}
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)
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func (*CouchDB) SampleConfig() string {
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return sampleConfig
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}
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func (c *CouchDB) Gather(accumulator telegraf.Accumulator) error {
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var wg sync.WaitGroup
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for _, u := range c.Hosts {
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wg.Add(1)
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go func(host string) {
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defer wg.Done()
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if err := c.fetchAndInsertData(accumulator, host); err != nil {
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accumulator.AddError(fmt.Errorf("[host=%s]: %w", host, err))
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}
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}(u)
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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 (c *CouchDB) fetchAndInsertData(accumulator telegraf.Accumulator, host string) error {
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if c.client == nil {
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c.client = &http.Client{
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Transport: &http.Transport{
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ResponseHeaderTimeout: 3 * time.Second,
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},
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Timeout: 4 * time.Second,
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}
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}
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req, err := http.NewRequest("GET", host, nil)
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if err != nil {
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return err
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}
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if c.BasicUsername != "" || c.BasicPassword != "" {
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req.SetBasicAuth(c.BasicUsername, c.BasicPassword)
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}
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response, err := c.client.Do(req)
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if err != nil {
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return err
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}
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defer response.Body.Close()
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if response.StatusCode != 200 {
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return fmt.Errorf("failed to get stats from couchdb: HTTP responded %d", response.StatusCode)
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}
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stats := stats{}
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decoder := json.NewDecoder(response.Body)
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if err := decoder.Decode(&stats); err != nil {
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return fmt.Errorf("failed to decode stats from couchdb: HTTP body %q", response.Body)
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}
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// for couchdb 2.0 API changes
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requestTime := metaData{
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Current: stats.Couchdb.RequestTime.Current,
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Sum: stats.Couchdb.RequestTime.Sum,
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Mean: stats.Couchdb.RequestTime.Mean,
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Stddev: stats.Couchdb.RequestTime.Stddev,
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Min: stats.Couchdb.RequestTime.Min,
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Max: stats.Couchdb.RequestTime.Max,
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}
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httpdRequestMethodsPut := stats.HttpdRequestMethods.Put
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httpdRequestMethodsGet := stats.HttpdRequestMethods.Get
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httpdRequestMethodsCopy := stats.HttpdRequestMethods.Copy
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httpdRequestMethodsDelete := stats.HttpdRequestMethods.Delete
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httpdRequestMethodsPost := stats.HttpdRequestMethods.Post
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httpdRequestMethodsHead := stats.HttpdRequestMethods.Head
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httpdStatusCodesStatus200 := stats.HttpdStatusCodes.Status200
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httpdStatusCodesStatus201 := stats.HttpdStatusCodes.Status201
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httpdStatusCodesStatus202 := stats.HttpdStatusCodes.Status202
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httpdStatusCodesStatus301 := stats.HttpdStatusCodes.Status301
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httpdStatusCodesStatus304 := stats.HttpdStatusCodes.Status304
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httpdStatusCodesStatus400 := stats.HttpdStatusCodes.Status400
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httpdStatusCodesStatus401 := stats.HttpdStatusCodes.Status401
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httpdStatusCodesStatus403 := stats.HttpdStatusCodes.Status403
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httpdStatusCodesStatus404 := stats.HttpdStatusCodes.Status404
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httpdStatusCodesStatus405 := stats.HttpdStatusCodes.Status405
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httpdStatusCodesStatus409 := stats.HttpdStatusCodes.Status409
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httpdStatusCodesStatus412 := stats.HttpdStatusCodes.Status412
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httpdStatusCodesStatus500 := stats.HttpdStatusCodes.Status500
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// check if couchdb2.0 is used
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if stats.Couchdb.HttpdRequestMethods.Get.Value != nil {
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requestTime = stats.Couchdb.RequestTime.Value
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httpdRequestMethodsPut = stats.Couchdb.HttpdRequestMethods.Put
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httpdRequestMethodsGet = stats.Couchdb.HttpdRequestMethods.Get
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httpdRequestMethodsCopy = stats.Couchdb.HttpdRequestMethods.Copy
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httpdRequestMethodsDelete = stats.Couchdb.HttpdRequestMethods.Delete
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httpdRequestMethodsPost = stats.Couchdb.HttpdRequestMethods.Post
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httpdRequestMethodsHead = stats.Couchdb.HttpdRequestMethods.Head
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httpdStatusCodesStatus200 = stats.Couchdb.HttpdStatusCodes.Status200
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httpdStatusCodesStatus201 = stats.Couchdb.HttpdStatusCodes.Status201
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httpdStatusCodesStatus202 = stats.Couchdb.HttpdStatusCodes.Status202
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httpdStatusCodesStatus301 = stats.Couchdb.HttpdStatusCodes.Status301
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httpdStatusCodesStatus304 = stats.Couchdb.HttpdStatusCodes.Status304
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httpdStatusCodesStatus400 = stats.Couchdb.HttpdStatusCodes.Status400
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httpdStatusCodesStatus401 = stats.Couchdb.HttpdStatusCodes.Status401
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httpdStatusCodesStatus403 = stats.Couchdb.HttpdStatusCodes.Status403
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httpdStatusCodesStatus404 = stats.Couchdb.HttpdStatusCodes.Status404
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httpdStatusCodesStatus405 = stats.Couchdb.HttpdStatusCodes.Status405
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httpdStatusCodesStatus409 = stats.Couchdb.HttpdStatusCodes.Status409
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httpdStatusCodesStatus412 = stats.Couchdb.HttpdStatusCodes.Status412
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httpdStatusCodesStatus500 = stats.Couchdb.HttpdStatusCodes.Status500
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}
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fields := make(map[string]interface{}, 31)
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// CouchDB meta stats:
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generateFields(fields, "couchdb_auth_cache_misses", stats.Couchdb.AuthCacheMisses)
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generateFields(fields, "couchdb_database_writes", stats.Couchdb.DatabaseWrites)
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generateFields(fields, "couchdb_open_databases", stats.Couchdb.OpenDatabases)
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generateFields(fields, "couchdb_auth_cache_hits", stats.Couchdb.AuthCacheHits)
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generateFields(fields, "couchdb_request_time", requestTime)
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generateFields(fields, "couchdb_database_reads", stats.Couchdb.DatabaseReads)
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generateFields(fields, "couchdb_open_os_files", stats.Couchdb.OpenOsFiles)
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// http request methods stats:
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generateFields(fields, "httpd_request_methods_put", httpdRequestMethodsPut)
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generateFields(fields, "httpd_request_methods_get", httpdRequestMethodsGet)
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generateFields(fields, "httpd_request_methods_copy", httpdRequestMethodsCopy)
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generateFields(fields, "httpd_request_methods_delete", httpdRequestMethodsDelete)
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generateFields(fields, "httpd_request_methods_post", httpdRequestMethodsPost)
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generateFields(fields, "httpd_request_methods_head", httpdRequestMethodsHead)
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// status code stats:
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generateFields(fields, "httpd_status_codes_200", httpdStatusCodesStatus200)
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generateFields(fields, "httpd_status_codes_201", httpdStatusCodesStatus201)
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generateFields(fields, "httpd_status_codes_202", httpdStatusCodesStatus202)
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generateFields(fields, "httpd_status_codes_301", httpdStatusCodesStatus301)
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generateFields(fields, "httpd_status_codes_304", httpdStatusCodesStatus304)
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generateFields(fields, "httpd_status_codes_400", httpdStatusCodesStatus400)
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generateFields(fields, "httpd_status_codes_401", httpdStatusCodesStatus401)
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generateFields(fields, "httpd_status_codes_403", httpdStatusCodesStatus403)
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generateFields(fields, "httpd_status_codes_404", httpdStatusCodesStatus404)
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generateFields(fields, "httpd_status_codes_405", httpdStatusCodesStatus405)
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generateFields(fields, "httpd_status_codes_409", httpdStatusCodesStatus409)
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generateFields(fields, "httpd_status_codes_412", httpdStatusCodesStatus412)
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generateFields(fields, "httpd_status_codes_500", httpdStatusCodesStatus500)
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// httpd stats:
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generateFields(fields, "httpd_clients_requesting_changes", stats.Httpd.ClientsRequestingChanges)
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generateFields(fields, "httpd_temporary_view_reads", stats.Httpd.TemporaryViewReads)
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generateFields(fields, "httpd_requests", stats.Httpd.Requests)
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generateFields(fields, "httpd_bulk_requests", stats.Httpd.BulkRequests)
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generateFields(fields, "httpd_view_reads", stats.Httpd.ViewReads)
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tags := map[string]string{
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"server": host,
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}
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accumulator.AddFields("couchdb", fields, tags)
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return nil
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}
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func generateFields(fields map[string]interface{}, prefix string, obj metaData) {
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if obj.Value != nil {
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fields[prefix+"_value"] = *obj.Value
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}
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if obj.Current != nil {
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fields[prefix+"_current"] = *obj.Current
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}
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if obj.Sum != nil {
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fields[prefix+"_sum"] = *obj.Sum
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}
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if obj.Mean != nil {
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fields[prefix+"_mean"] = *obj.Mean
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}
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if obj.Stddev != nil {
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fields[prefix+"_stddev"] = *obj.Stddev
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}
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if obj.Min != nil {
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fields[prefix+"_min"] = *obj.Min
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}
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if obj.Max != nil {
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fields[prefix+"_max"] = *obj.Max
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}
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}
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func init() {
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inputs.Add("couchdb", func() telegraf.Input {
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return &CouchDB{
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client: &http.Client{
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Transport: &http.Transport{
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ResponseHeaderTimeout: 3 * time.Second,
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},
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Timeout: 4 * time.Second,
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},
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}
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})
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}
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