Don't retain labels longer than needed

grafana · Nov 15, 2024 · 3fcf6c1 · 3fcf6c1
1 parent 51bc370
commit 3fcf6c1
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/pkg/querier/block_streaming.go b/pkg/querier/block_streaming.go
@@ -66,6 +66,10 @@ func (bqss *blockStreamingQuerierSeriesSet) Next() bool {
 	}
 
 	bqss.currSeries = newBlockStreamingQuerierSeries(currLabels, seriesIdxStart, bqss.nextSeriesIndex-1, bqss.streamReader, bqss.chunkInfo, bqss.nextSeriesIndex >= len(bqss.series), bqss.remoteAddress)
+
+	// Clear any labels we no longer need, to allow them to be garbage collected when they're no longer needed elsewhere.
+	clear(bqss.series[seriesIdxStart : bqss.nextSeriesIndex-1])
+
 	return true
 }