Update documentation for exemplar label limit (#1095)

Signed-off-by: Fredrik Enestad <fredrik@enestad.com>
prometheus · Jul 27, 2022 · a528aff · a528aff
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commit a528aff
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/prometheus/counter.go b/prometheus/counter.go
@@ -51,7 +51,7 @@ type Counter interface {
 // will lead to a valid (label-less) exemplar. But if Labels is nil, the current
 // exemplar is left in place. AddWithExemplar panics if the value is < 0, if any
 // of the provided labels are invalid, or if the provided labels contain more
-// than 64 runes in total.
+// than 128 runes in total.
 type ExemplarAdder interface {
 	AddWithExemplar(value float64, exemplar Labels)
 }

diff --git a/prometheus/observer.go b/prometheus/observer.go
@@ -58,7 +58,7 @@ type ObserverVec interface {
 // current time as timestamp, and the provided Labels. Empty Labels will lead to
 // a valid (label-less) exemplar. But if Labels is nil, the current exemplar is
 // left in place. ObserveWithExemplar panics if any of the provided labels are
-// invalid or if the provided labels contain more than 64 runes in total.
+// invalid or if the provided labels contain more than 128 runes in total.
 type ExemplarObserver interface {
 	ObserveWithExemplar(value float64, exemplar Labels)
 }