diff --git a/testdata/cases/server71/server71.conf b/testdata/cases/server71/server71.conf
index e8eb139..d2a2cdd 100644
--- a/testdata/cases/server71/server71.conf
+++ b/testdata/cases/server71/server71.conf
@@ -55,7 +55,6 @@ namespace ns1 {
 	
 	storage-engine memory {
         data-size 32G
-		flush-size 1M
     }
 
 	evict-indexes-memory-pct 50
diff --git a/testdata/cases/server71/server71.yaml b/testdata/cases/server71/server71.yaml
index 1a04b04..797ea28 100644
--- a/testdata/cases/server71/server71.yaml
+++ b/testdata/cases/server71/server71.yaml
@@ -36,7 +36,6 @@ namespaces:
         type: shmem
       storage-engine:
         data-size: 34359738368
-        flush-size: 1048576
         type: memory
 network:
     fabric: