added comment to concurrency thing

grafana · Aug 21, 2023 · 52f0871 · 52f0871
1 parent 1a449a0
commit 52f0871
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/pkg/storage/stores/series/series_index_store.go b/pkg/storage/stores/series/series_index_store.go
@@ -279,6 +279,7 @@ func (c *indexReaderWriter) chunksToSeries(ctx context.Context, in []logproto.Ch
 		}))
 	}
 
+	// making this a slice of slices and flattening it out later avoids a concurrency issue
 	results := make([][]labels.Labels, len(jobs))
 
 	// Picking an arbitrary bound of 20 numConcurrent jobs.