From e3d87cc1ec58892f6a8b616d3593c1e3345526ea Mon Sep 17 00:00:00 2001
From: Michael Stack <stack@apache.org>
Date: Mon, 25 Jun 2018 12:04:47 -0700
Subject: [PATCH] HBASE-20785 NPE getting metrics in PE testing scans

---
 .../test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
index 26ab88d565a..1a72ececfca 100644
--- a/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
+++ b/hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java
@@ -1189,6 +1189,7 @@ public class PerformanceEvaluation extends Configured implements Tool {
     }
 
     void updateScanMetrics(final ScanMetrics metrics) {
+      if (metrics == null) return;
       Map<String,Long> metricsMap = metrics.getMetricsMap();
       Long rpcCalls = metricsMap.get(ScanMetrics.RPC_CALLS_METRIC_NAME);
       if (rpcCalls != null) {