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lib/vmselectapi: use string type for tagKey and tagValuePrefix args at TagValueSuffixes()

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This improves the API consistency
This commit is contained in:
Aliaksandr Valialkin 2022-07-05 23:47:46 +03:00
parent f51bc07d97
commit 5afa54e845
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GPG Key ID: A72BEC6CD3D0DED1
5 changed files with 16 additions and 15 deletions
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2
app/vmstorage/servers/vmselect.go
View File

@ -67,7 +67,7 @@ func (api *vmstorageAPI) LabelValues(qt *querytracer.Tracer, accountID, projectI
return api.s.SearchLabelValuesWithFiltersOnTimeRange(qt, accountID, projectID, labelName, tfss, tr, maxLabelValues, maxMetrics, deadline)
}
func (api *vmstorageAPI) TagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr storage.TimeRange, tagKey, tagValuePrefix []byte, delimiter byte,
func (api *vmstorageAPI) TagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr storage.TimeRange, tagKey, tagValuePrefix string, delimiter byte,
maxSuffixes int, deadline uint64) ([]string, error) {
return api.s.SearchTagValueSuffixes(qt, accountID, projectID, tr, tagKey, tagValuePrefix, delimiter, maxSuffixes, deadline)
}

16
lib/storage/index_db.go
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@ -1061,7 +1061,7 @@ func (is *indexSearch) searchLabelValuesWithFiltersOnDate(qt *querytracer.Tracer
// This allows implementing https://graphite-api.readthedocs.io/en/latest/api.html#metrics-find or similar APIs.
//
// If it returns maxTagValueSuffixes suffixes, then it is likely more than maxTagValueSuffixes suffixes is found.
func (db *indexDB) SearchTagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr TimeRange, tagKey, tagValuePrefix []byte,
func (db *indexDB) SearchTagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr TimeRange, tagKey, tagValuePrefix string,
delimiter byte, maxTagValueSuffixes int, deadline uint64) ([]string, error) {
qt = qt.NewChild("search tag value suffixes for accountID=%d, projectID=%d, timeRange=%s, tagKey=%q, tagValuePrefix=%q, delimiter=%c, maxTagValueSuffixes=%d",
accountID, projectID, &tr, tagKey, tagValuePrefix, delimiter, maxTagValueSuffixes)
@ -1102,7 +1102,7 @@ func (db *indexDB) SearchTagValueSuffixes(qt *querytracer.Tracer, accountID, pro
return suffixes, nil
}
func (is *indexSearch) searchTagValueSuffixesForTimeRange(tvss map[string]struct{}, tr TimeRange, tagKey, tagValuePrefix []byte, delimiter byte, maxTagValueSuffixes int) error {
func (is *indexSearch) searchTagValueSuffixesForTimeRange(tvss map[string]struct{}, tr TimeRange, tagKey, tagValuePrefix string, delimiter byte, maxTagValueSuffixes int) error {
minDate := uint64(tr.MinTimestamp) / msecPerDay
maxDate := uint64(tr.MaxTimestamp-1) / msecPerDay
if minDate > maxDate || maxDate-minDate > maxDaysForPerDaySearch {
@ -1143,24 +1143,24 @@ func (is *indexSearch) searchTagValueSuffixesForTimeRange(tvss map[string]struct
return errGlobal
}
func (is *indexSearch) searchTagValueSuffixesAll(tvss map[string]struct{}, tagKey, tagValuePrefix []byte, delimiter byte, maxTagValueSuffixes int) error {
func (is *indexSearch) searchTagValueSuffixesAll(tvss map[string]struct{}, tagKey, tagValuePrefix string, delimiter byte, maxTagValueSuffixes int) error {
kb := &is.kb
nsPrefix := byte(nsPrefixTagToMetricIDs)
kb.B = is.marshalCommonPrefix(kb.B[:0], nsPrefix)
kb.B = marshalTagValue(kb.B, tagKey)
kb.B = marshalTagValue(kb.B, tagValuePrefix)
kb.B = marshalTagValue(kb.B, bytesutil.ToUnsafeBytes(tagKey))
kb.B = marshalTagValue(kb.B, bytesutil.ToUnsafeBytes(tagValuePrefix))
kb.B = kb.B[:len(kb.B)-1] // remove tagSeparatorChar from the end of kb.B
prefix := append([]byte(nil), kb.B...)
return is.searchTagValueSuffixesForPrefix(tvss, nsPrefix, prefix, len(tagValuePrefix), delimiter, maxTagValueSuffixes)
}
func (is *indexSearch) searchTagValueSuffixesForDate(tvss map[string]struct{}, date uint64, tagKey, tagValuePrefix []byte, delimiter byte, maxTagValueSuffixes int) error {
func (is *indexSearch) searchTagValueSuffixesForDate(tvss map[string]struct{}, date uint64, tagKey, tagValuePrefix string, delimiter byte, maxTagValueSuffixes int) error {
nsPrefix := byte(nsPrefixDateTagToMetricIDs)
kb := &is.kb
kb.B = is.marshalCommonPrefix(kb.B[:0], nsPrefix)
kb.B = encoding.MarshalUint64(kb.B, date)
kb.B = marshalTagValue(kb.B, tagKey)
kb.B = marshalTagValue(kb.B, tagValuePrefix)
kb.B = marshalTagValue(kb.B, bytesutil.ToUnsafeBytes(tagKey))
kb.B = marshalTagValue(kb.B, bytesutil.ToUnsafeBytes(tagValuePrefix))
kb.B = kb.B[:len(kb.B)-1] // remove tagSeparatorChar from the end of kb.B
prefix := append([]byte(nil), kb.B...)
return is.searchTagValueSuffixesForPrefix(tvss, nsPrefix, prefix, len(tagValuePrefix), delimiter, maxTagValueSuffixes)

7
lib/storage/storage.go
View File

@ -18,6 +18,7 @@ import (
"unsafe"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/bloomfilter"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/decimal"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/encoding"
@ -1379,7 +1380,7 @@ func (s *Storage) SearchLabelValuesWithFiltersOnTimeRange(qt *querytracer.Tracer
// This allows implementing https://graphite-api.readthedocs.io/en/latest/api.html#metrics-find or similar APIs.
//
// If more than maxTagValueSuffixes suffixes is found, then only the first maxTagValueSuffixes suffixes is returned.
func (s *Storage) SearchTagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr TimeRange, tagKey, tagValuePrefix []byte,
func (s *Storage) SearchTagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr TimeRange, tagKey, tagValuePrefix string,
delimiter byte, maxTagValueSuffixes int, deadline uint64) ([]string, error) {
return s.idb().SearchTagValueSuffixes(qt, accountID, projectID, tr, tagKey, tagValuePrefix, delimiter, maxTagValueSuffixes, deadline)
}
@ -1437,7 +1438,7 @@ func (s *Storage) searchGraphitePaths(qt *querytracer.Tracer, accountID, project
if n < 0 {
// Verify that qHead matches a metric name.
qHead = append(qHead, qTail...)
suffixes, err := s.SearchTagValueSuffixes(qt, accountID, projectID, tr, nil, qHead, '.', 1, deadline)
suffixes, err := s.SearchTagValueSuffixes(qt, accountID, projectID, tr, "", bytesutil.ToUnsafeString(qHead), '.', 1, deadline)
if err != nil {
return nil, err
}
@ -1452,7 +1453,7 @@ func (s *Storage) searchGraphitePaths(qt *querytracer.Tracer, accountID, project
return []string{string(qHead)}, nil
}
qHead = append(qHead, qTail[:n]...)
suffixes, err := s.SearchTagValueSuffixes(qt, accountID, projectID, tr, nil, qHead, '.', maxPaths, deadline)
suffixes, err := s.SearchTagValueSuffixes(qt, accountID, projectID, tr, "", bytesutil.ToUnsafeString(qHead), '.', maxPaths, deadline)
if err != nil {
return nil, err
}

2
lib/vmselectapi/api.go
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@ -19,7 +19,7 @@ type API interface {
LabelValues(qt *querytracer.Tracer, accountID, projectID uint32, tfss []*storage.TagFilters, tr storage.TimeRange, labelName string, maxLabelValues, maxMetrics int, deadline uint64) ([]string, error)
// TagValueSuffixes returns tag value suffixes for the given args.
TagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr storage.TimeRange, tagKey, tagValuePrefix []byte, delimiter byte, maxSuffixes int, deadline uint64) ([]string, error)
TagValueSuffixes(qt *querytracer.Tracer, accountID, projectID uint32, tr storage.TimeRange, tagKey, tagValuePrefix string, delimiter byte, maxSuffixes int, deadline uint64) ([]string, error)
// LabelNames returns lable names for series matching the given tfss.
LabelNames(qt *querytracer.Tracer, accountID, projectID uint32, tfss []*storage.TagFilters, tr storage.TimeRange, maxLableNames, maxMetrics int, deadline uint64) ([]string, error)

4
lib/vmselectapi/server.go
View File

@ -692,11 +692,11 @@ func (s *Server) processTagValueSuffixes(ctx *vmselectRequestCtx) error {
if err := ctx.readDataBufBytes(maxLabelValueSize); err != nil {
return fmt.Errorf("cannot read tagKey: %w", err)
}
tagKey := append([]byte{}, ctx.dataBuf...)
tagKey := string(ctx.dataBuf)
if err := ctx.readDataBufBytes(maxLabelValueSize); err != nil {
return fmt.Errorf("cannot read tagValuePrefix: %w", err)
}
tagValuePrefix := append([]byte{}, ctx.dataBuf...)
tagValuePrefix := string(ctx.dataBuf)
delimiter, err := ctx.readByte()
if err != nil {
return fmt.Errorf("cannot read delimiter: %w", err)