From b0c406da079ee0e8acd003f8db4fb3ce123b6f8a Mon Sep 17 00:00:00 2001
From: Michael Stack <stack@apache.org>
Date: Sun, 3 Nov 2013 05:11:20 +0000
Subject: [PATCH] HBASE-8942 DFS errors during a read operation (get/scan), may
 cause write outliers

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1538317 13f79535-47bb-0310-9956-ffa450edef68
---
 .../hadoop/hbase/regionserver/HStore.java     | 23 ++++++++-----------
 1 file changed, 9 insertions(+), 14 deletions(-)

diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HStore.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HStore.java
index 19be8029043..5f65a26821e 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HStore.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HStore.java
@@ -1678,21 +1678,16 @@ public class HStore implements Store {
   //////////////////////////////////////////////////////////////////////////////
 
   @Override
-  public KeyValueScanner getScanner(Scan scan,
-      final NavigableSet<byte []> targetCols, long readPt) throws IOException {
-    lock.readLock().lock();
-    try {
-      KeyValueScanner scanner = null;
-      if (this.getCoprocessorHost() != null) {
-        scanner = this.getCoprocessorHost().preStoreScannerOpen(this, scan, targetCols);
-      }
-      if (scanner == null) {
-        scanner = new StoreScanner(this, getScanInfo(), scan, targetCols, readPt);
-      }
-      return scanner;
-    } finally {
-      lock.readLock().unlock();
+  public KeyValueScanner getScanner(Scan scan, final NavigableSet<byte[]> targetCols, long readPt)
+      throws IOException {
+    KeyValueScanner scanner = null;
+    if (this.getCoprocessorHost() != null) {
+      scanner = this.getCoprocessorHost().preStoreScannerOpen(this, scan, targetCols);
     }
+    if (scanner == null) {
+      scanner = new StoreScanner(this, getScanInfo(), scan, targetCols, readPt);
+    }
+    return scanner;
   }
 
   @Override