From 6c99c80331503f1f3308caf59572d897c9160731 Mon Sep 17 00:00:00 2001
From: Baiqiang Zhao <zbq.dean@gmail.com>
Date: Tue, 17 Dec 2019 11:36:18 +0800
Subject: [PATCH] HBASE-23585 MetricsRegionServerWrapperImpl.getL1CacheHitCount
 always returns 200

---
 .../hbase/regionserver/MetricsRegionServerWrapperImpl.java   | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java
index 948c255df281..007899341693 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java
@@ -343,7 +343,10 @@ public long getBlockCacheFailedInsertions() {
 
   @Override
   public long getL1CacheHitCount() {
-    return 200;
+    if (this.l1Stats == null) {
+      return 0;
+    }
+    return this.l1Stats.getHitCount();
   }
 
   @Override