improve allocation when extracting gRPC metadata #7065
+196
−34
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What this PR does:
Same as cortexproject/weaveworks-common#8, change
metadata.FromIncomingContextto usemetadata.ValueFromIncomingContextinstead to improve allocation.metadata.FromIncomingContextis 17% of objects allocated on Ingester from our profile. Changing it tometadata.ValueFromIncomingContextshould help with allocation to relieve GC.Which issue(s) this PR fixes:
Fixes #
Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]