diff --git a/lib/mapreduce/mapreduce.go b/lib/mapreduce/mapreduce.go
index <HASH>..<HASH> 100644
--- a/lib/mapreduce/mapreduce.go
+++ b/lib/mapreduce/mapreduce.go
@@ -274,7 +274,9 @@ func Map(job Job, jobPath string, m materializeInfo, host string, shard, modulos
 		}
 		nextMarker := ""
 		for {
+			log.Print("s3: before List nextMarker = ", nextMarker)
 			lr, err := bucket.List(inPath, "", nextMarker, 0)
+			log.Printf("s3: %#v", lr)
 			if err != nil {
 				log.Print(err)
 				return
Adds more logging to mapreduce code.