2021-01-09 19:10:34 +05:30

277 lines
8.9 KiB
Go

package druidQuery
import (
"encoding/json"
"fmt"
"time"
"go.signoz.io/query-service/constants"
"go.signoz.io/query-service/model"
"go.uber.org/zap"
)
type ServiceItem struct {
ServiceName string `json:"serviceName"`
Percentile99 float32 `json:"p99"`
AvgDuration float32 `json:"avgDuration"`
NumCalls int `json:"numCalls"`
CallRate float32 `json:"callRate"`
NumErrors int `json:"numErrors"`
ErrorRate float32 `json:"errorRate"`
}
type ServiceOverviewItem struct {
Time string `json:"time,omitempty"`
Timestamp int64 `json:"timestamp"`
Percentile50 float32 `json:"p50"`
Percentile90 float32 `json:"p90"`
Percentile99 float32 `json:"p99"`
NumCalls int `json:"numCalls"`
CallRate float32 `json:"callRate"`
NumErrors int `json:"numErrors"`
ErrorRate float32 `json:"errorRate"`
}
type UsageItem struct {
Time string `json:"time,omitempty"`
Timestamp int64 `json:"timestamp"`
Count int64 `json:"count"`
}
type TopEnpointsItem struct {
Percentile50 float32 `json:"p50"`
Percentile90 float32 `json:"p90"`
Percentile99 float32 `json:"p99"`
NumCalls int `json:"numCalls"`
Name string `json:"name"`
}
type TagItem struct {
TagKeys string `json:"tagKeys"`
TagCount int `json:"tagCount"`
}
func GetOperations(client *SqlClient, serviceName string) (*[]string, error) {
sqlQuery := fmt.Sprintf(`SELECT DISTINCT(Name) FROM %s WHERE ServiceName='%s' AND __time > CURRENT_TIMESTAMP - INTERVAL '2' DAY`, constants.DruidDatasource, serviceName)
// zap.S().Debug(sqlQuery)
response, err := client.Query(sqlQuery, "array")
if err != nil {
zap.S().Error(sqlQuery, err)
return nil, fmt.Errorf("Something went wrong in druid query")
}
// zap.S().Info(string(response))
res := new([][]string)
err = json.Unmarshal(response, res)
if err != nil {
zap.S().Error(err)
return nil, fmt.Errorf("Error in unmarshalling response from druid")
}
var getOperationsReponse []string
for _, item := range *res {
getOperationsReponse = append(getOperationsReponse, item[0])
}
getOperationsReponse = getOperationsReponse[1:]
return &getOperationsReponse, nil
}
func GetServicesList(client *SqlClient) (*[]string, error) {
sqlQuery := fmt.Sprintf(`SELECT DISTINCT(ServiceName) FROM %s`, constants.DruidDatasource)
// zap.S().Debug(sqlQuery)
response, err := client.Query(sqlQuery, "array")
if err != nil {
zap.S().Error(sqlQuery, err)
return nil, fmt.Errorf("Something went wrong in druid query")
}
// zap.S().Info(string(response))
res := new([][]string)
err = json.Unmarshal(response, res)
if err != nil {
zap.S().Error(err)
return nil, fmt.Errorf("Error in unmarshalling response from druid")
}
var servicesListReponse []string
for _, item := range *res {
servicesListReponse = append(servicesListReponse, item[0])
}
servicesListReponse = servicesListReponse[1:]
return &servicesListReponse, nil
}
func GetTags(client *SqlClient, serviceName string) (*[]TagItem, error) {
var sqlQuery string
if len(serviceName) != 0 {
sqlQuery = fmt.Sprintf(`SELECT TagsKeys as tagKeys, Count(TagsKeys) as "tagCount" FROM %s WHERE "ServiceName"='%s' AND "__time" > CURRENT_TIMESTAMP - INTERVAL '1' DAY GROUP BY TagsKeys ORDER BY tagCount DESC LIMIT 100`, constants.DruidDatasource, serviceName)
} else {
sqlQuery = fmt.Sprintf(`SELECT TagsKeys as tagKeys, Count(TagsKeys) as "tagCount" FROM %s WHERE "__time" > CURRENT_TIMESTAMP - INTERVAL '1' DAY GROUP BY TagsKeys ORDER BY tagCount DESC LIMIT 100`, constants.DruidDatasource)
}
// zap.S().Debug(sqlQuery)
response, err := client.Query(sqlQuery, "object")
if err != nil {
zap.S().Error(sqlQuery, err)
return nil, fmt.Errorf("Something went wrong in druid query")
}
// zap.S().Info(string(response))
res := new([]TagItem)
err = json.Unmarshal(response, res)
if err != nil {
zap.S().Error(err)
return nil, fmt.Errorf("Error in unmarshalling response from druid")
}
tagResponse := (*res)[1:]
return &tagResponse, nil
}
func GetTopEndpoints(client *SqlClient, query *model.GetTopEndpointsParams) (*[]TopEnpointsItem, error) {
sqlQuery := fmt.Sprintf(`SELECT APPROX_QUANTILE_DS("QuantileDuration", 0.5) as p50, APPROX_QUANTILE_DS("QuantileDuration", 0.9) as p90, APPROX_QUANTILE_DS("QuantileDuration", 0.99) as p99, COUNT(SpanId) as numCalls, Name FROM "%s" WHERE "__time" >= TIMESTAMP '%s' AND "__time" <= TIMESTAMP '%s' AND "Kind"='2' and "ServiceName"='%s' GROUP BY Name`, constants.DruidDatasource, query.StartTime, query.EndTime, query.ServiceName)
// zap.S().Debug(sqlQuery)
response, err := client.Query(sqlQuery, "object")
if err != nil {
zap.S().Error(query, err)
return nil, fmt.Errorf("Something went wrong in druid query")
}
// zap.S().Info(string(response))
res := new([]TopEnpointsItem)
err = json.Unmarshal(response, res)
if err != nil {
zap.S().Error(err)
return nil, fmt.Errorf("Error in unmarshalling response from druid")
}
topEnpointsResponse := (*res)[1:]
return &topEnpointsResponse, nil
}
func GetUsage(client *SqlClient, query *model.GetUsageParams) (*[]UsageItem, error) {
var sqlQuery string
if len(query.ServiceName) != 0 {
sqlQuery = fmt.Sprintf(`SELECT TIME_FLOOR(__time, '%s') as "time", COUNT(SpanId) as "count" FROM "%s" WHERE "__time" >= TIMESTAMP '%s' and "__time" <= TIMESTAMP '%s' and "ServiceName"='%s' GROUP BY TIME_FLOOR(__time, '%s')`, query.Period, constants.DruidDatasource, query.StartTime, query.EndTime, query.ServiceName, query.Period)
} else {
sqlQuery = fmt.Sprintf(`SELECT TIME_FLOOR(__time, '%s') as "time", COUNT(SpanId) as "count" FROM "%s" WHERE "__time" >= TIMESTAMP '%s' and "__time" <= TIMESTAMP '%s' GROUP BY TIME_FLOOR(__time, '%s')`, query.Period, constants.DruidDatasource, query.StartTime, query.EndTime, query.Period)
}
// zap.S().Debug(sqlQuery)
response, err := client.Query(sqlQuery, "object")
if err != nil {
zap.S().Error(query, err)
return nil, fmt.Errorf("Something went wrong in druid query")
}
// zap.S().Info(string(response))
res := new([]UsageItem)
err = json.Unmarshal(response, res)
if err != nil {
zap.S().Error(err)
return nil, fmt.Errorf("Error in unmarshalling response from druid")
}
for i, _ := range *res {
timeObj, _ := time.Parse(time.RFC3339Nano, (*res)[i].Time)
(*res)[i].Timestamp = int64(timeObj.UnixNano())
(*res)[i].Time = ""
}
usageResponse := (*res)[1:]
return &usageResponse, nil
}
func GetServiceOverview(client *SqlClient, query *model.GetServiceOverviewParams) (*[]ServiceOverviewItem, error) {
sqlQuery := fmt.Sprintf(`SELECT TIME_FLOOR(__time, '%s') as "time", APPROX_QUANTILE_DS("QuantileDuration", 0.5) as p50, APPROX_QUANTILE_DS("QuantileDuration", 0.9) as p90,
APPROX_QUANTILE_DS("QuantileDuration", 0.99) as p99, COUNT("SpanId") as "numCalls" FROM "%s" WHERE "__time" >= TIMESTAMP '%s' and "__time" <= TIMESTAMP '%s' and "Kind"='2' and "ServiceName"='%s' GROUP BY TIME_FLOOR(__time, '%s') `, query.Period, constants.DruidDatasource, query.StartTime, query.EndTime, query.ServiceName, query.Period)
// zap.S().Debug(sqlQuery)
response, err := client.Query(sqlQuery, "object")
if err != nil {
zap.S().Error(query, err)
return nil, fmt.Errorf("Something went wrong in druid query")
}
// zap.S().Info(string(response))
res := new([]ServiceOverviewItem)
err = json.Unmarshal(response, res)
if err != nil {
zap.S().Error(err)
return nil, fmt.Errorf("Error in unmarshalling response from druid")
}
for i, _ := range *res {
timeObj, _ := time.Parse(time.RFC3339Nano, (*res)[i].Time)
(*res)[i].Timestamp = int64(timeObj.UnixNano())
(*res)[i].Time = ""
(*res)[i].ErrorRate = float32((*res)[i].NumErrors) / float32(query.StepSeconds)
(*res)[i].CallRate = float32((*res)[i].NumCalls) / float32(query.StepSeconds)
}
servicesOverviewResponse := (*res)[1:]
return &servicesOverviewResponse, nil
}
func GetServices(client *SqlClient, query *model.GetServicesParams) (*[]ServiceItem, error) {
sqlQuery := fmt.Sprintf(`SELECT APPROX_QUANTILE_DS("QuantileDuration", 0.99) as "p99", AVG("DurationNano") as "avgDuration", COUNT(SpanId) as numCalls, "ServiceName" as "serviceName" FROM %s WHERE "__time" >= TIMESTAMP '%s' and "__time" <= TIMESTAMP '%s' and "Kind"='2' GROUP BY "ServiceName" ORDER BY "p99" DESC`, constants.DruidDatasource, query.StartTime, query.EndTime)
response, err := client.Query(sqlQuery, "object")
// zap.S().Debug(sqlQuery)
if err != nil {
zap.S().Error(query, err)
return nil, fmt.Errorf("Something went wrong in druid query")
}
// zap.S().Info(string(response))
res := new([]ServiceItem)
err = json.Unmarshal(response, res)
if err != nil {
zap.S().Error(err)
return nil, fmt.Errorf("Error in unmarshalling response from druid")
}
for i, _ := range *res {
(*res)[i].ErrorRate = float32((*res)[i].NumErrors) / float32(query.Period)
(*res)[i].CallRate = float32((*res)[i].NumCalls) / float32(query.Period)
}
servicesResponse := (*res)[1:]
return &servicesResponse, nil
}