From 0965822ae15fd6e10c2cc70fe6b22d44ad1f8c4a Mon Sep 17 00:00:00 2001
From: litao <tomleescut@gmail.com>
Date: Sat, 23 Apr 2022 11:14:06 +0800
Subject: [PATCH] HDFS-16552. Fix NPE for TestBlockManager (#4210)

(cherry picked from commit 5ebbacc48023c0c71dd428df40a4352feede373b)
---
 .../hadoop/hdfs/server/blockmanagement/TestBlockManager.java    | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
index 65e6c356620..c1a39249ad4 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockManager.java
@@ -844,6 +844,7 @@ public class TestBlockManager {
 
   @Test
   public void testSkipReconstructionWithManyBusyNodes() {
+    NameNode.initMetrics(new Configuration(), HdfsServerConstants.NamenodeRole.NAMENODE);
     long blockId = -9223372036854775776L; // real ec block id
     // RS-3-2 EC policy
     ErasureCodingPolicy ecPolicy =
@@ -889,6 +890,7 @@ public class TestBlockManager {
 
   @Test
   public void testSkipReconstructionWithManyBusyNodes2() {
+    NameNode.initMetrics(new Configuration(), HdfsServerConstants.NamenodeRole.NAMENODE);
     long blockId = -9223372036854775776L; // real ec block id
     // RS-3-2 EC policy
     ErasureCodingPolicy ecPolicy =