From c31b7b8d525b88cba7079b29d5ed9615286f5f59 Mon Sep 17 00:00:00 2001
From: Konstantin V Shvachko <shv@apache.org>
Date: Fri, 24 May 2019 12:34:29 -0700
Subject: [PATCH] HDFS-14502. keepResults option in NNThroughputBenchmark
 should call saveNamespace(). Contributed by Konstantin V Shvachko.

---
 .../hadoop/hdfs/server/namenode/NNThroughputBenchmark.java   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NNThroughputBenchmark.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NNThroughputBenchmark.java
index e5d9826c3e..653b906e54 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NNThroughputBenchmark.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NNThroughputBenchmark.java
@@ -288,6 +288,11 @@ void cleanUp() throws IOException {
           false);
       if(!keepResults)
         clientProto.delete(getBaseDir(), true);
+      else {
+        clientProto.setSafeMode(HdfsConstants.SafeModeAction.SAFEMODE_ENTER,
+            true);
+        clientProto.saveNamespace(0, 0);
+      }
     }
 
     int getNumOpsExecuted() {