From 1010992ee87f4cf9aec8fbdbcc4dcf1794846251 Mon Sep 17 00:00:00 2001
From: Andrew Purtell <apurtell@apache.org>
Date: Mon, 17 Sep 2018 14:49:31 -0700
Subject: [PATCH] HBASE-21203 TestZKMainServer#testCommandLineWorks won't pass
 with default 4lw whitelist

Recent versions of ZooKeeper whitelist the so-called 4-letter word admin
commands, and 'stat' is not in the default whitelist. Set system property
zookeeper.4lw.commands.whitelist=* in MiniZooKeeperCluster#setupTestEnv
as we do not need to whitelist 4-letter commands for unit tests.
---
 .../org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.java | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hbase-zookeeper/src/main/java/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.java b/hbase-zookeeper/src/main/java/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.java
index b2645639cce..730d0dd4cc2 100644
--- a/hbase-zookeeper/src/main/java/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.java
+++ b/hbase-zookeeper/src/main/java/org/apache/hadoop/hbase/zookeeper/MiniZooKeeperCluster.java
@@ -176,6 +176,8 @@ public class MiniZooKeeperCluster {
     // set env and directly in order to handle static init/gc issues
     System.setProperty("zookeeper.preAllocSize", "100");
     FileTxnLog.setPreallocSize(100 * 1024);
+    // allow all 4 letter words
+    System.setProperty("zookeeper.4lw.commands.whitelist","*");
   }
 
   public int startup(File baseDir) throws IOException, InterruptedException {