From af9422c04a343730d9ed6f3cf46cd6fc9d77c04a Mon Sep 17 00:00:00 2001
From: tedyu <yuzhihong@gmail.com>
Date: Fri, 1 Jul 2016 14:26:09 -0700
Subject: [PATCH] HBASE-16159 OutOfMemory exception when using AsyncRpcClient
 with encryption to read rpc response (Colin Ma)

---
 .../org/apache/hadoop/hbase/security/SaslClientHandler.java   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/security/SaslClientHandler.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/security/SaslClientHandler.java
index 9b522ae2ab2..d583e20b217 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/security/SaslClientHandler.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/security/SaslClientHandler.java
@@ -216,6 +216,8 @@ public class SaslClientHandler extends ChannelDuplexHandler {
           writeSaslToken(ctx, saslToken);
         }
       }
+      // release the memory
+      in.release();
 
       if (saslClient.isComplete()) {
         String qop = (String) saslClient.getNegotiatedProperty(Sasl.QOP);
@@ -246,6 +248,8 @@ public class SaslClientHandler extends ChannelDuplexHandler {
         }
         saslToken = new byte[length];
         in.readBytes(saslToken);
+        // release the memory
+        in.release();
       } catch (IndexOutOfBoundsException e) {
         return;
       }