443 lines
14 KiB
Go
443 lines
14 KiB
Go
|
package solr
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/json"
|
||
|
|
"fmt"
|
||
|
|
"net/http"
|
||
|
|
"strconv"
|
||
|
|
"strings"
|
||
|
|
"sync"
|
||
|
|
"time"
|
||
|
|
|
||
|
|
"github.com/influxdata/telegraf"
|
||
|
|
"github.com/influxdata/telegraf/internal"
|
||
|
|
"github.com/influxdata/telegraf/plugins/inputs"
|
||
|
|
)
|
||
|
|
|
||
|
|
const mbeansPath = "/admin/mbeans?stats=true&wt=json&cat=CORE&cat=QUERYHANDLER&cat=UPDATEHANDLER&cat=CACHE"
|
||
|
|
const adminCoresPath = "/solr/admin/cores?action=STATUS&wt=json"
|
||
|
|
|
||
|
|
type node struct {
|
||
|
|
Host string `json:"host"`
|
||
|
|
}
|
||
|
|
|
||
|
|
const sampleConfig = `
|
||
|
|
## specify a list of one or more Solr servers
|
||
|
|
servers = ["http://localhost:8983"]
|
||
|
|
|
||
|
|
## specify a list of one or more Solr cores (default - all)
|
||
|
|
# cores = ["main"]
|
||
|
|
`
|
||
|
|
|
||
|
|
// Solr is a plugin to read stats from one or many Solr servers
|
||
|
|
type Solr struct {
|
||
|
|
Local bool
|
||
|
|
Servers []string
|
||
|
|
HTTPTimeout internal.Duration
|
||
|
|
Cores []string
|
||
|
|
client *http.Client
|
||
|
|
}
|
||
|
|
|
||
|
|
// AdminCoresStatus is an exported type that
|
||
|
|
// contains a response with information about Solr cores.
|
||
|
|
type AdminCoresStatus struct {
|
||
|
|
Status map[string]struct {
|
||
|
|
Index struct {
|
||
|
|
SizeInBytes int64 `json:"sizeInBytes"`
|
||
|
|
NumDocs int64 `json:"numDocs"`
|
||
|
|
MaxDoc int64 `json:"maxDoc"`
|
||
|
|
DeletedDocs int64 `json:"deletedDocs"`
|
||
|
|
} `json:"index"`
|
||
|
|
} `json:"status"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// MBeansData is an exported type that
|
||
|
|
// contains a response from Solr with metrics
|
||
|
|
type MBeansData struct {
|
||
|
|
Headers ResponseHeader `json:"responseHeader"`
|
||
|
|
SolrMbeans []json.RawMessage `json:"solr-mbeans"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// ResponseHeader is an exported type that
|
||
|
|
// contains a response metrics: QTime and Status
|
||
|
|
type ResponseHeader struct {
|
||
|
|
QTime int64 `json:"QTime"`
|
||
|
|
Status int64 `json:"status"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// Core is an exported type that
|
||
|
|
// contains Core metrics
|
||
|
|
type Core struct {
|
||
|
|
Stats struct {
|
||
|
|
DeletedDocs int64 `json:"deletedDocs"`
|
||
|
|
MaxDoc int64 `json:"maxDoc"`
|
||
|
|
NumDocs int64 `json:"numDocs"`
|
||
|
|
} `json:"stats"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// QueryHandler is an exported type that
|
||
|
|
// contains query handler metrics
|
||
|
|
type QueryHandler struct {
|
||
|
|
Stats struct {
|
||
|
|
One5minRateReqsPerSecond float64 `json:"15minRateReqsPerSecond"`
|
||
|
|
FiveMinRateReqsPerSecond float64 `json:"5minRateReqsPerSecond"`
|
||
|
|
Seven5thPcRequestTime float64 `json:"75thPcRequestTime"`
|
||
|
|
Nine5thPcRequestTime float64 `json:"95thPcRequestTime"`
|
||
|
|
Nine99thPcRequestTime float64 `json:"999thPcRequestTime"`
|
||
|
|
Nine9thPcRequestTime float64 `json:"99thPcRequestTime"`
|
||
|
|
AvgRequestsPerSecond float64 `json:"avgRequestsPerSecond"`
|
||
|
|
AvgTimePerRequest float64 `json:"avgTimePerRequest"`
|
||
|
|
Errors int64 `json:"errors"`
|
||
|
|
HandlerStart int64 `json:"handlerStart"`
|
||
|
|
MedianRequestTime float64 `json:"medianRequestTime"`
|
||
|
|
Requests int64 `json:"requests"`
|
||
|
|
Timeouts int64 `json:"timeouts"`
|
||
|
|
TotalTime float64 `json:"totalTime"`
|
||
|
|
} `json:"stats"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// UpdateHandler is an exported type that
|
||
|
|
// contains update handler metrics
|
||
|
|
type UpdateHandler struct {
|
||
|
|
Stats struct {
|
||
|
|
Adds int64 `json:"adds"`
|
||
|
|
AutocommitMaxDocs int64 `json:"autocommit maxDocs"`
|
||
|
|
AutocommitMaxTime string `json:"autocommit maxTime"`
|
||
|
|
Autocommits int64 `json:"autocommits"`
|
||
|
|
Commits int64 `json:"commits"`
|
||
|
|
CumulativeAdds int64 `json:"cumulative_adds"`
|
||
|
|
CumulativeDeletesByID int64 `json:"cumulative_deletesById"`
|
||
|
|
CumulativeDeletesByQuery int64 `json:"cumulative_deletesByQuery"`
|
||
|
|
CumulativeErrors int64 `json:"cumulative_errors"`
|
||
|
|
DeletesByID int64 `json:"deletesById"`
|
||
|
|
DeletesByQuery int64 `json:"deletesByQuery"`
|
||
|
|
DocsPending int64 `json:"docsPending"`
|
||
|
|
Errors int64 `json:"errors"`
|
||
|
|
ExpungeDeletes int64 `json:"expungeDeletes"`
|
||
|
|
Optimizes int64 `json:"optimizes"`
|
||
|
|
Rollbacks int64 `json:"rollbacks"`
|
||
|
|
SoftAutocommits int64 `json:"soft autocommits"`
|
||
|
|
} `json:"stats"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// Hitratio is an helper interface
|
||
|
|
// so we can later on convert it to float64
|
||
|
|
type Hitratio interface{}
|
||
|
|
|
||
|
|
// Cache is an exported type that
|
||
|
|
// contains cache metrics
|
||
|
|
type Cache struct {
|
||
|
|
Stats struct {
|
||
|
|
CumulativeEvictions int64 `json:"cumulative_evictions"`
|
||
|
|
CumulativeHitratio Hitratio `json:"cumulative_hitratio"`
|
||
|
|
CumulativeHits int64 `json:"cumulative_hits"`
|
||
|
|
CumulativeInserts int64 `json:"cumulative_inserts"`
|
||
|
|
CumulativeLookups int64 `json:"cumulative_lookups"`
|
||
|
|
Evictions int64 `json:"evictions"`
|
||
|
|
Hitratio Hitratio `json:"hitratio"`
|
||
|
|
Hits int64 `json:"hits"`
|
||
|
|
Inserts int64 `json:"inserts"`
|
||
|
|
Lookups int64 `json:"lookups"`
|
||
|
|
Size int64 `json:"size"`
|
||
|
|
WarmupTime int64 `json:"warmupTime"`
|
||
|
|
} `json:"stats"`
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewSolr return a new instance of Solr
|
||
|
|
func NewSolr() *Solr {
|
||
|
|
return &Solr{
|
||
|
|
HTTPTimeout: internal.Duration{Duration: time.Second * 5},
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// SampleConfig returns sample configuration for this plugin.
|
||
|
|
func (s *Solr) SampleConfig() string {
|
||
|
|
return sampleConfig
|
||
|
|
}
|
||
|
|
|
||
|
|
// Description returns the plugin description.
|
||
|
|
func (s *Solr) Description() string {
|
||
|
|
return "Read stats from one or more Solr servers or cores"
|
||
|
|
}
|
||
|
|
|
||
|
|
// Gather reads the stats from Solr and writes it to the
|
||
|
|
// Accumulator.
|
||
|
|
func (s *Solr) Gather(acc telegraf.Accumulator) error {
|
||
|
|
if s.client == nil {
|
||
|
|
client := s.createHTTPClient()
|
||
|
|
s.client = client
|
||
|
|
}
|
||
|
|
|
||
|
|
var wg sync.WaitGroup
|
||
|
|
wg.Add(len(s.Servers))
|
||
|
|
|
||
|
|
for _, serv := range s.Servers {
|
||
|
|
go func(serv string, acc telegraf.Accumulator) {
|
||
|
|
defer wg.Done()
|
||
|
|
acc.AddError(s.gatherServerMetrics(serv, acc))
|
||
|
|
}(serv, acc)
|
||
|
|
}
|
||
|
|
wg.Wait()
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Gather all metrics from server
|
||
|
|
func (s *Solr) gatherServerMetrics(server string, acc telegraf.Accumulator) error {
|
||
|
|
measurementTime := time.Now()
|
||
|
|
adminCoresStatus := &AdminCoresStatus{}
|
||
|
|
if err := s.gatherData(s.adminURL(server), adminCoresStatus); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
addAdminCoresStatusToAcc(acc, adminCoresStatus, measurementTime)
|
||
|
|
cores := s.filterCores(getCoresFromStatus(adminCoresStatus))
|
||
|
|
var wg sync.WaitGroup
|
||
|
|
wg.Add(len(cores))
|
||
|
|
for _, core := range cores {
|
||
|
|
go func(server string, core string, acc telegraf.Accumulator) {
|
||
|
|
defer wg.Done()
|
||
|
|
mBeansData := &MBeansData{}
|
||
|
|
acc.AddError(s.gatherData(s.mbeansURL(server, core), mBeansData))
|
||
|
|
acc.AddError(addCoreMetricsToAcc(acc, core, mBeansData, measurementTime))
|
||
|
|
acc.AddError(addQueryHandlerMetricsToAcc(acc, core, mBeansData, measurementTime))
|
||
|
|
acc.AddError(addUpdateHandlerMetricsToAcc(acc, core, mBeansData, measurementTime))
|
||
|
|
acc.AddError(addCacheMetricsToAcc(acc, core, mBeansData, measurementTime))
|
||
|
|
}(server, core, acc)
|
||
|
|
}
|
||
|
|
wg.Wait()
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Use cores from configuration if exists, else use cores from server
|
||
|
|
func (s *Solr) filterCores(serverCores []string) []string {
|
||
|
|
if len(s.Cores) == 0 {
|
||
|
|
return serverCores
|
||
|
|
}
|
||
|
|
return s.Cores
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return list of cores from solr server
|
||
|
|
func getCoresFromStatus(adminCoresStatus *AdminCoresStatus) []string {
|
||
|
|
serverCores := []string{}
|
||
|
|
for coreName := range adminCoresStatus.Status {
|
||
|
|
serverCores = append(serverCores, coreName)
|
||
|
|
}
|
||
|
|
return serverCores
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add core metrics from admin to accumulator
|
||
|
|
// This is the only point where size_in_bytes is available (as far as I checked)
|
||
|
|
func addAdminCoresStatusToAcc(acc telegraf.Accumulator, adminCoreStatus *AdminCoresStatus, time time.Time) {
|
||
|
|
for core, metrics := range adminCoreStatus.Status {
|
||
|
|
coreFields := map[string]interface{}{
|
||
|
|
"deleted_docs": metrics.Index.DeletedDocs,
|
||
|
|
"max_docs": metrics.Index.MaxDoc,
|
||
|
|
"num_docs": metrics.Index.NumDocs,
|
||
|
|
"size_in_bytes": metrics.Index.SizeInBytes,
|
||
|
|
}
|
||
|
|
acc.AddFields(
|
||
|
|
"solr_admin",
|
||
|
|
coreFields,
|
||
|
|
map[string]string{"core": core},
|
||
|
|
time,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add core metrics section to accumulator
|
||
|
|
func addCoreMetricsToAcc(acc telegraf.Accumulator, core string, mBeansData *MBeansData, time time.Time) error {
|
||
|
|
var coreMetrics map[string]Core
|
||
|
|
if err := json.Unmarshal(mBeansData.SolrMbeans[1], &coreMetrics); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
for name, metrics := range coreMetrics {
|
||
|
|
if strings.Contains(name, "@") {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
coreFields := map[string]interface{}{
|
||
|
|
"deleted_docs": metrics.Stats.DeletedDocs,
|
||
|
|
"max_docs": metrics.Stats.MaxDoc,
|
||
|
|
"num_docs": metrics.Stats.NumDocs,
|
||
|
|
}
|
||
|
|
acc.AddFields(
|
||
|
|
"solr_core",
|
||
|
|
coreFields,
|
||
|
|
map[string]string{
|
||
|
|
"core": core,
|
||
|
|
"handler": name},
|
||
|
|
time,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add query metrics section to accumulator
|
||
|
|
func addQueryHandlerMetricsToAcc(acc telegraf.Accumulator, core string, mBeansData *MBeansData, time time.Time) error {
|
||
|
|
var queryMetrics map[string]QueryHandler
|
||
|
|
|
||
|
|
if err := json.Unmarshal(mBeansData.SolrMbeans[3], &queryMetrics); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
for name, metrics := range queryMetrics {
|
||
|
|
coreFields := map[string]interface{}{
|
||
|
|
"15min_rate_reqs_per_second": metrics.Stats.One5minRateReqsPerSecond,
|
||
|
|
"5min_rate_reqs_per_second": metrics.Stats.FiveMinRateReqsPerSecond,
|
||
|
|
"75th_pc_request_time": metrics.Stats.Seven5thPcRequestTime,
|
||
|
|
"95th_pc_request_time": metrics.Stats.Nine5thPcRequestTime,
|
||
|
|
"999th_pc_request_time": metrics.Stats.Nine99thPcRequestTime,
|
||
|
|
"99th_pc_request_time": metrics.Stats.Nine9thPcRequestTime,
|
||
|
|
"avg_requests_per_second": metrics.Stats.AvgRequestsPerSecond,
|
||
|
|
"avg_time_per_request": metrics.Stats.AvgTimePerRequest,
|
||
|
|
"errors": metrics.Stats.Errors,
|
||
|
|
"handler_start": metrics.Stats.HandlerStart,
|
||
|
|
"median_request_time": metrics.Stats.MedianRequestTime,
|
||
|
|
"requests": metrics.Stats.Requests,
|
||
|
|
"timeouts": metrics.Stats.Timeouts,
|
||
|
|
"total_time": metrics.Stats.TotalTime,
|
||
|
|
}
|
||
|
|
acc.AddFields(
|
||
|
|
"solr_queryhandler",
|
||
|
|
coreFields,
|
||
|
|
map[string]string{
|
||
|
|
"core": core,
|
||
|
|
"handler": name},
|
||
|
|
time,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add update metrics section to accumulator
|
||
|
|
func addUpdateHandlerMetricsToAcc(acc telegraf.Accumulator, core string, mBeansData *MBeansData, time time.Time) error {
|
||
|
|
var updateMetrics map[string]UpdateHandler
|
||
|
|
|
||
|
|
if err := json.Unmarshal(mBeansData.SolrMbeans[5], &updateMetrics); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
for name, metrics := range updateMetrics {
|
||
|
|
var autoCommitMaxTime int64
|
||
|
|
if len(metrics.Stats.AutocommitMaxTime) > 2 {
|
||
|
|
autoCommitMaxTime, _ = strconv.ParseInt(metrics.Stats.AutocommitMaxTime[:len(metrics.Stats.AutocommitMaxTime)-2], 0, 64)
|
||
|
|
}
|
||
|
|
coreFields := map[string]interface{}{
|
||
|
|
"adds": metrics.Stats.Adds,
|
||
|
|
"autocommit_max_docs": metrics.Stats.AutocommitMaxDocs,
|
||
|
|
"autocommit_max_time": autoCommitMaxTime,
|
||
|
|
"autocommits": metrics.Stats.Autocommits,
|
||
|
|
"commits": metrics.Stats.Commits,
|
||
|
|
"cumulative_adds": metrics.Stats.CumulativeAdds,
|
||
|
|
"cumulative_deletes_by_id": metrics.Stats.CumulativeDeletesByID,
|
||
|
|
"cumulative_deletes_by_query": metrics.Stats.CumulativeDeletesByQuery,
|
||
|
|
"cumulative_errors": metrics.Stats.CumulativeErrors,
|
||
|
|
"deletes_by_id": metrics.Stats.DeletesByID,
|
||
|
|
"deletes_by_query": metrics.Stats.DeletesByQuery,
|
||
|
|
"docs_pending": metrics.Stats.DocsPending,
|
||
|
|
"errors": metrics.Stats.Errors,
|
||
|
|
"expunge_deletes": metrics.Stats.ExpungeDeletes,
|
||
|
|
"optimizes": metrics.Stats.Optimizes,
|
||
|
|
"rollbacks": metrics.Stats.Rollbacks,
|
||
|
|
"soft_autocommits": metrics.Stats.SoftAutocommits,
|
||
|
|
}
|
||
|
|
acc.AddFields(
|
||
|
|
"solr_updatehandler",
|
||
|
|
coreFields,
|
||
|
|
map[string]string{
|
||
|
|
"core": core,
|
||
|
|
"handler": name},
|
||
|
|
time,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get float64 from interface
|
||
|
|
func getFloat(unk interface{}) float64 {
|
||
|
|
switch i := unk.(type) {
|
||
|
|
case float64:
|
||
|
|
return i
|
||
|
|
case string:
|
||
|
|
f, _ := strconv.ParseFloat(i, 64)
|
||
|
|
return f
|
||
|
|
default:
|
||
|
|
return float64(0)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add cache metrics section to accumulator
|
||
|
|
func addCacheMetricsToAcc(acc telegraf.Accumulator, core string, mBeansData *MBeansData, time time.Time) error {
|
||
|
|
var cacheMetrics map[string]Cache
|
||
|
|
if err := json.Unmarshal(mBeansData.SolrMbeans[7], &cacheMetrics); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
for name, metrics := range cacheMetrics {
|
||
|
|
cumulativeHits := getFloat(metrics.Stats.CumulativeHitratio)
|
||
|
|
hitratio := getFloat(metrics.Stats.Hitratio)
|
||
|
|
coreFields := map[string]interface{}{
|
||
|
|
"cumulative_evictions": metrics.Stats.CumulativeEvictions,
|
||
|
|
"cumulative_hitratio": cumulativeHits,
|
||
|
|
"cumulative_hits": metrics.Stats.CumulativeHits,
|
||
|
|
"cumulative_inserts": metrics.Stats.CumulativeInserts,
|
||
|
|
"cumulative_lookups": metrics.Stats.CumulativeLookups,
|
||
|
|
"evictions": metrics.Stats.Evictions,
|
||
|
|
"hitratio": hitratio,
|
||
|
|
"hits": metrics.Stats.Hits,
|
||
|
|
"inserts": metrics.Stats.Inserts,
|
||
|
|
"lookups": metrics.Stats.Lookups,
|
||
|
|
"size": metrics.Stats.Size,
|
||
|
|
"warmup_time": metrics.Stats.WarmupTime,
|
||
|
|
}
|
||
|
|
acc.AddFields(
|
||
|
|
"solr_cache",
|
||
|
|
coreFields,
|
||
|
|
map[string]string{
|
||
|
|
"core": core,
|
||
|
|
"handler": name},
|
||
|
|
time,
|
||
|
|
)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Provide admin url
|
||
|
|
func (s *Solr) adminURL(server string) string {
|
||
|
|
return fmt.Sprintf("%s%s", server, adminCoresPath)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Provide mbeans url
|
||
|
|
func (s *Solr) mbeansURL(server string, core string) string {
|
||
|
|
return fmt.Sprintf("%s/solr/%s%s", server, core, mbeansPath)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *Solr) createHTTPClient() *http.Client {
|
||
|
|
tr := &http.Transport{
|
||
|
|
ResponseHeaderTimeout: s.HTTPTimeout.Duration,
|
||
|
|
}
|
||
|
|
client := &http.Client{
|
||
|
|
Transport: tr,
|
||
|
|
Timeout: s.HTTPTimeout.Duration,
|
||
|
|
}
|
||
|
|
|
||
|
|
return client
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *Solr) gatherData(url string, v interface{}) error {
|
||
|
|
r, err := s.client.Get(url)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
defer r.Body.Close()
|
||
|
|
if r.StatusCode != http.StatusOK {
|
||
|
|
return fmt.Errorf("solr: API responded with status-code %d, expected %d, url %s",
|
||
|
|
r.StatusCode, http.StatusOK, url)
|
||
|
|
}
|
||
|
|
if err = json.NewDecoder(r.Body).Decode(v); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
inputs.Add("solr", func() telegraf.Input {
|
||
|
|
return NewSolr()
|
||
|
|
})
|
||
|
|
}
|