log-backup: should set default value gc.ratio-threshold after pitr …

…finished (#40141) (#40366) close #40185
pingcap · Feb 14, 2023 · 7ecf793 · 7ecf793
1 parent ff2ed0d
commit 7ecf793
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/br/pkg/task/stream.go b/br/pkg/task/stream.go
@@ -480,6 +480,12 @@ func KeepGcDisabled(g glue.Glue, store kv.Storage) (RestoreFunc, error) {
 		return nil, errors.Trace(err)
 	}
 
+	// If the oldRatio is negative, which is not normal status.
+	// It should set default value "1.1" after PiTR finished.
+	if strings.HasPrefix(oldRatio, "-") {
+		oldRatio = "1.1"
+	}
+
 	return func() error {
 		return utils.SetGcRatio(execCtx, oldRatio)
 	}, nil