Merge pull request #8698 from influxdata/jw-compact

Reduce CPU usage for some compactions
influxdata · Aug 15, 2017 · 3fb7941 · 3fb7941
2 parents 442581d + 61b13eb
commit 3fb7941
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/tsdb/engine/tsm1/compact.go b/tsdb/engine/tsm1/compact.go
@@ -1063,6 +1063,10 @@ func (b *block) markRead(min, max int64) {
 }
 
 func (b *block) partiallyRead() bool {
+	// If readMin and readMax are still the initial values, nothing has been read.
+	if b.readMin == int64(math.MaxInt64) && b.readMax == int64(math.MinInt64) {
+		return false
+	}
 	return b.readMin != b.minTime || b.readMax != b.maxTime
 }