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Hotfix erroneous "label index missing" error

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This commit is contained in:
Fabian Reinartz 2017-03-20 11:37:06 +01:00
parent 3635569257
commit 2ef3682560
1 changed files with 9 additions and 1 deletions
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10
index.go
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@ -567,7 +567,10 @@ func (r *indexReader) LabelValues(names ...string) (StringTuples, error) {
key := strings.Join(names, string(sep)) key := strings.Join(names, string(sep))
off, ok := r.labels[key] off, ok := r.labels[key]
if !ok { if !ok {
return nil, fmt.Errorf("label index doesn't exist") // XXX(fabxc): hot fix. Should return a partial data error and handle cases
// where the entire block has no data gracefully.
return emptyStringTuples{}, nil
//return nil, fmt.Errorf("label index doesn't exist")
} }
flag, b, err := r.section(off) flag, b, err := r.section(off)
@ -590,6 +593,11 @@ func (r *indexReader) LabelValues(names ...string) (StringTuples, error) {
return st, nil return st, nil
} }
type emptyStringTuples struct{}
func (emptyStringTuples) At(i int) ([]string, error) { return nil, nil }
func (emptyStringTuples) Len() int { return 0 }
func (r *indexReader) LabelIndices() ([][]string, error) { func (r *indexReader) LabelIndices() ([][]string, error) {
res := [][]string{} res := [][]string{}