2024-12-18 21:07:31 +07:00

339 lines
10 KiB
Go

package querier
import (
"context"
"fmt"
"strings"
"sync"
logsV3 "go.signoz.io/signoz/pkg/query-service/app/logs/v3"
logsV4 "go.signoz.io/signoz/pkg/query-service/app/logs/v4"
metricsV3 "go.signoz.io/signoz/pkg/query-service/app/metrics/v3"
tracesV3 "go.signoz.io/signoz/pkg/query-service/app/traces/v3"
tracesV4 "go.signoz.io/signoz/pkg/query-service/app/traces/v4"
"go.signoz.io/signoz/pkg/query-service/common"
"go.signoz.io/signoz/pkg/query-service/constants"
v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
"go.signoz.io/signoz/pkg/query-service/postprocess"
"go.signoz.io/signoz/pkg/query-service/querycache"
"go.uber.org/zap"
)
func prepareLogsQuery(_ context.Context,
useLogsNewSchema bool,
start,
end int64,
builderQuery *v3.BuilderQuery,
params *v3.QueryRangeParamsV3,
preferRPM bool,
) (string, error) {
query := ""
logsQueryBuilder := logsV3.PrepareLogsQuery
if useLogsNewSchema {
logsQueryBuilder = logsV4.PrepareLogsQuery
}
if params == nil || builderQuery == nil {
return query, fmt.Errorf("params and builderQuery cannot be nil")
}
// for ts query with limit replace it as it is already formed
if params.CompositeQuery.PanelType == v3.PanelTypeGraph && builderQuery.Limit > 0 && len(builderQuery.GroupBy) > 0 {
limitQuery, err := logsQueryBuilder(
start,
end,
params.CompositeQuery.QueryType,
params.CompositeQuery.PanelType,
builderQuery,
v3.QBOptions{GraphLimitQtype: constants.FirstQueryGraphLimit, PreferRPM: preferRPM},
)
if err != nil {
return query, err
}
placeholderQuery, err := logsQueryBuilder(
start,
end,
params.CompositeQuery.QueryType,
params.CompositeQuery.PanelType,
builderQuery,
v3.QBOptions{GraphLimitQtype: constants.SecondQueryGraphLimit, PreferRPM: preferRPM},
)
if err != nil {
return query, err
}
query = strings.Replace(placeholderQuery, "#LIMIT_PLACEHOLDER", limitQuery, 1)
return query, err
}
query, err := logsQueryBuilder(
start,
end,
params.CompositeQuery.QueryType,
params.CompositeQuery.PanelType,
builderQuery,
v3.QBOptions{PreferRPM: preferRPM},
)
if err != nil {
return query, err
}
return query, err
}
func (q *querier) runBuilderQuery(
ctx context.Context,
builderQuery *v3.BuilderQuery,
params *v3.QueryRangeParamsV3,
cacheKeys map[string]string,
ch chan channelResult,
wg *sync.WaitGroup,
) {
defer wg.Done()
queryName := builderQuery.QueryName
var preferRPM bool
if q.featureLookUp != nil {
preferRPM = q.featureLookUp.CheckFeature(constants.PreferRPM) == nil
}
start := params.Start
end := params.End
if builderQuery.ShiftBy != 0 {
start = start - builderQuery.ShiftBy*1000
end = end - builderQuery.ShiftBy*1000
}
if builderQuery.DataSource == v3.DataSourceLogs {
var query string
var err error
if _, ok := cacheKeys[queryName]; !ok || params.NoCache {
zap.L().Info("skipping cache for logs query", zap.String("queryName", queryName), zap.Int64("start", start), zap.Int64("end", end), zap.Int64("step", builderQuery.StepInterval), zap.Bool("noCache", params.NoCache), zap.String("cacheKey", cacheKeys[queryName]))
query, err = prepareLogsQuery(ctx, q.UseLogsNewSchema, start, end, builderQuery, params, preferRPM)
if err != nil {
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: nil}
return
}
series, err := q.execClickHouseQuery(ctx, query)
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: series}
return
}
misses := q.queryCache.FindMissingTimeRanges(start, end, builderQuery.StepInterval, cacheKeys[queryName])
zap.L().Info("cache misses for logs query", zap.Any("misses", misses))
missedSeries := make([]querycache.CachedSeriesData, 0)
for _, miss := range misses {
query, err = prepareLogsQuery(ctx, q.UseLogsNewSchema, miss.Start, miss.End, builderQuery, params, preferRPM)
if err != nil {
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: nil}
return
}
series, err := q.execClickHouseQuery(ctx, query)
if err != nil {
ch <- channelResult{
Err: err,
Name: queryName,
Query: query,
Series: nil,
}
return
}
missedSeries = append(missedSeries, querycache.CachedSeriesData{
Start: miss.Start,
End: miss.End,
Data: series,
})
}
mergedSeries := q.queryCache.MergeWithCachedSeriesData(cacheKeys[queryName], missedSeries)
resultSeries := common.GetSeriesFromCachedData(mergedSeries, start, end)
ch <- channelResult{
Err: nil,
Name: queryName,
Series: resultSeries,
}
return
}
if builderQuery.DataSource == v3.DataSourceTraces {
tracesQueryBuilder := tracesV3.PrepareTracesQuery
if q.UseTraceNewSchema {
tracesQueryBuilder = tracesV4.PrepareTracesQuery
}
var query string
var err error
// for ts query with group by and limit form two queries
if params.CompositeQuery.PanelType == v3.PanelTypeGraph && builderQuery.Limit > 0 && len(builderQuery.GroupBy) > 0 {
limitQuery, err := tracesQueryBuilder(
start,
end,
params.CompositeQuery.PanelType,
builderQuery,
v3.QBOptions{GraphLimitQtype: constants.FirstQueryGraphLimit, PreferRPM: preferRPM},
)
if err != nil {
ch <- channelResult{Err: err, Name: queryName, Query: limitQuery, Series: nil}
return
}
placeholderQuery, err := tracesQueryBuilder(
start,
end,
params.CompositeQuery.PanelType,
builderQuery,
v3.QBOptions{GraphLimitQtype: constants.SecondQueryGraphLimit, PreferRPM: preferRPM},
)
if err != nil {
ch <- channelResult{Err: err, Name: queryName, Query: limitQuery, Series: nil}
return
}
query = strings.Replace(placeholderQuery, "#LIMIT_PLACEHOLDER", limitQuery, 1)
} else {
query, err = tracesQueryBuilder(
start,
end,
params.CompositeQuery.PanelType,
builderQuery,
v3.QBOptions{PreferRPM: preferRPM},
)
if err != nil {
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: nil}
return
}
}
series, err := q.execClickHouseQuery(ctx, query)
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: series}
return
}
// What is happening here?
// We are only caching the graph panel queries. A non-existant cache key means that the query is not cached.
// If the query is not cached, we execute the query and return the result without caching it.
if _, ok := cacheKeys[queryName]; !ok || params.NoCache {
zap.L().Info("skipping cache for metrics query", zap.String("queryName", queryName), zap.Int64("start", start), zap.Int64("end", end), zap.Int64("step", builderQuery.StepInterval), zap.Bool("noCache", params.NoCache), zap.String("cacheKey", cacheKeys[queryName]))
query, err := metricsV3.PrepareMetricQuery(start, end, params.CompositeQuery.QueryType, params.CompositeQuery.PanelType, builderQuery, metricsV3.Options{PreferRPM: preferRPM})
if err != nil {
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: nil}
return
}
series, err := q.execClickHouseQuery(ctx, query)
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: series}
return
}
cacheKey := cacheKeys[queryName]
misses := q.queryCache.FindMissingTimeRanges(start, end, builderQuery.StepInterval, cacheKey)
zap.L().Info("cache misses for metrics query", zap.Any("misses", misses))
missedSeries := make([]querycache.CachedSeriesData, 0)
for _, miss := range misses {
query, err := metricsV3.PrepareMetricQuery(
miss.Start,
miss.End,
params.CompositeQuery.QueryType,
params.CompositeQuery.PanelType,
builderQuery,
metricsV3.Options{},
)
if err != nil {
ch <- channelResult{
Err: err,
Name: queryName,
Query: query,
Series: nil,
}
return
}
series, err := q.execClickHouseQuery(ctx, query)
if err != nil {
ch <- channelResult{
Err: err,
Name: queryName,
Query: query,
Series: nil,
}
return
}
missedSeries = append(missedSeries, querycache.CachedSeriesData{
Start: miss.Start,
End: miss.End,
Data: series,
})
}
mergedSeries := q.queryCache.MergeWithCachedSeriesData(cacheKey, missedSeries)
resultSeries := common.GetSeriesFromCachedData(mergedSeries, start, end)
ch <- channelResult{
Err: nil,
Name: queryName,
Series: resultSeries,
}
}
func (q *querier) runBuilderExpression(
ctx context.Context,
builderQuery *v3.BuilderQuery,
params *v3.QueryRangeParamsV3,
cacheKeys map[string]string,
ch chan channelResult,
wg *sync.WaitGroup,
) {
defer wg.Done()
queryName := builderQuery.QueryName
queries, err := q.builder.PrepareQueries(params)
if err != nil {
ch <- channelResult{Err: err, Name: queryName, Query: "", Series: nil}
return
}
if _, ok := cacheKeys[queryName]; !ok || params.NoCache {
zap.L().Info("skipping cache for expression query", zap.String("queryName", queryName), zap.Int64("start", params.Start), zap.Int64("end", params.End), zap.Int64("step", params.Step), zap.Bool("noCache", params.NoCache), zap.String("cacheKey", cacheKeys[queryName]))
query := queries[queryName]
series, err := q.execClickHouseQuery(ctx, query)
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: series}
return
}
cacheKey := cacheKeys[queryName]
step := postprocess.StepIntervalForFunction(params, queryName)
misses := q.queryCache.FindMissingTimeRanges(params.Start, params.End, step, cacheKey)
zap.L().Info("cache misses for expression query", zap.Any("misses", misses))
missedSeries := make([]querycache.CachedSeriesData, 0)
for _, miss := range misses {
missQueries, _ := q.builder.PrepareQueries(&v3.QueryRangeParamsV3{
Start: miss.Start,
End: miss.End,
Step: params.Step,
NoCache: params.NoCache,
CompositeQuery: params.CompositeQuery,
Variables: params.Variables,
})
query := missQueries[queryName]
series, err := q.execClickHouseQuery(ctx, query)
if err != nil {
ch <- channelResult{Err: err, Name: queryName, Query: query, Series: nil}
return
}
missedSeries = append(missedSeries, querycache.CachedSeriesData{
Start: miss.Start,
End: miss.End,
Data: series,
})
}
mergedSeries := q.queryCache.MergeWithCachedSeriesData(cacheKey, missedSeries)
resultSeries := common.GetSeriesFromCachedData(mergedSeries, params.Start, params.End)
ch <- channelResult{
Err: nil,
Name: queryName,
Series: resultSeries,
}
}