HBASE-16614 Use daemon thread for netty event loop

Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/0860bdb6
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/0860bdb6
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/0860bdb6

Branch: refs/heads/hbase-12439
Commit: 0860bdb675180a7ed9a1bbafe542b9e730d39e31
Parents: 105bfc7
Author: zhangduo <zhang...@apache.org>
Authored: Mon Sep 12 16:32:03 2016 +0800
Committer: zhangduo <zhang...@apache.org>
Committed: Mon Sep 12 22:05:03 2016 +0800

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 .../apache/hadoop/hbase/ipc/DefaultNettyEventLoopConfig.java    | 5 ++++-
 .../main/java/org/apache/hadoop/hbase/ipc/NettyRpcClient.java   | 4 +++-
 2 files changed, 7 insertions(+), 2 deletions(-)
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http://git-wip-us.apache.org/repos/asf/hbase/blob/0860bdb6/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/DefaultNettyEventLoopConfig.java
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diff --git 
a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/DefaultNettyEventLoopConfig.java
 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/DefaultNettyEventLoopConfig.java
index c7c0f32..f710d54 100644
--- 
a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/DefaultNettyEventLoopConfig.java
+++ 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/DefaultNettyEventLoopConfig.java
@@ -21,6 +21,7 @@ import io.netty.channel.Channel;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.nio.NioEventLoopGroup;
 import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.util.concurrent.DefaultThreadFactory;
 
 import org.apache.hadoop.hbase.classification.InterfaceAudience;
 import org.apache.hadoop.hbase.util.Pair;
@@ -32,6 +33,8 @@ import org.apache.hadoop.hbase.util.Pair;
 class DefaultNettyEventLoopConfig {
 
   public static final Pair<EventLoopGroup, Class<? extends Channel>> 
GROUP_AND_CHANNEL_CLASS = Pair
-      .<EventLoopGroup, Class<? extends Channel>> newPair(new 
NioEventLoopGroup(),
+      .<EventLoopGroup, Class<? extends Channel>> newPair(
+        new NioEventLoopGroup(0,
+            new DefaultThreadFactory("Default-IPC-NioEventLoopGroup", true, 
Thread.MAX_PRIORITY)),
         NioSocketChannel.class);
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/0860bdb6/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/NettyRpcClient.java
----------------------------------------------------------------------
diff --git 
a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/NettyRpcClient.java 
b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/NettyRpcClient.java
index 8c568af..cde453f 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/NettyRpcClient.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/ipc/NettyRpcClient.java
@@ -21,6 +21,7 @@ import io.netty.channel.Channel;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.nio.NioEventLoopGroup;
 import io.netty.channel.socket.nio.NioSocketChannel;
+import io.netty.util.concurrent.DefaultThreadFactory;
 
 import java.io.IOException;
 import java.net.SocketAddress;
@@ -51,7 +52,8 @@ public class NettyRpcClient extends 
AbstractRpcClient<NettyRpcConnection> {
         .getEventLoopConfig(conf);
     if (groupAndChannelClass == null) {
       // Use our own EventLoopGroup.
-      this.group = new NioEventLoopGroup();
+      this.group = new NioEventLoopGroup(0,
+          new DefaultThreadFactory("IPC-NioEventLoopGroup", true, 
Thread.MAX_PRIORITY));
       this.channelClass = NioSocketChannel.class;
       this.shutdownGroupWhenClose = true;
     } else {

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