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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.ipc;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.HashMap;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.Map;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.commons.lang3.StringUtils;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.hadoop.conf.Configuration;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hbase.thirdparty.io.netty.channel.Channel;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoopGroup;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hbase.thirdparty.io.netty.channel.socket.nio.NioSocketChannel;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultThreadFactory;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span><a name="line.33"></a> |
| <span class="sourceLineNo">034</span>/**<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * Helper class for passing config to {@link NettyRpcClient}.<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * <p><a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * As hadoop Configuration can not pass an Object directly, we need to find a way to pass the<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * EventLoopGroup to {@code AsyncRpcClient} if we want to use a single {@code EventLoopGroup} for<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * the whole process.<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * @since 2.0.0<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> */<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>@InterfaceAudience.Public<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>public final class NettyRpcClientConfigHelper {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> public static final String EVENT_LOOP_CONFIG = "hbase.rpc.client.event-loop.config";<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> /**<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * Name of property to change netty rpc client eventloop thread count. Default is 0. Tests may set<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * this down from unlimited.<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> */<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> public static final String HBASE_NETTY_EVENTLOOP_RPCCLIENT_THREADCOUNT_KEY =<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> "hbase.netty.eventloop.rpcclient.thread.count";<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> private static final String CONFIG_NAME = "global-event-loop";<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> private static final Map<String,<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> Pair<EventLoopGroup, Class<? extends Channel>>> EVENT_LOOP_CONFIG_MAP = new HashMap<>();<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> /**<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * Shutdown constructor.<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> private NettyRpcClientConfigHelper() {<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> }<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> /**<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * Set the EventLoopGroup and channel class for {@code AsyncRpcClient}.<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> */<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public static void setEventLoopConfig(Configuration conf, EventLoopGroup group,<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> Class<? extends Channel> channelClass) {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> Preconditions.checkNotNull(group, "group is null");<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> Preconditions.checkNotNull(channelClass, "channel class is null");<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> conf.set(EVENT_LOOP_CONFIG, CONFIG_NAME);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> EVENT_LOOP_CONFIG_MAP.put(CONFIG_NAME,<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> Pair.<EventLoopGroup, Class<? extends Channel>> newPair(group, channelClass));<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> }<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> /**<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * The {@link NettyRpcClient} will create its own {@code NioEventLoopGroup}.<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> */<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> public static void createEventLoopPerClient(Configuration conf) {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> conf.set(EVENT_LOOP_CONFIG, "");<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> EVENT_LOOP_CONFIG_MAP.clear();<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> }<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> private static volatile Pair<EventLoopGroup, Class<? extends Channel>> DEFAULT_EVENT_LOOP;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> private static Pair<EventLoopGroup, Class<? extends Channel>><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> getDefaultEventLoopConfig(Configuration conf) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> Pair<EventLoopGroup, Class<? extends Channel>> eventLoop = DEFAULT_EVENT_LOOP;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (eventLoop != null) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> return eventLoop;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> synchronized (NettyRpcClientConfigHelper.class) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> eventLoop = DEFAULT_EVENT_LOOP;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> if (eventLoop != null) {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> return eventLoop;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> int threadCount = conf.getInt(HBASE_NETTY_EVENTLOOP_RPCCLIENT_THREADCOUNT_KEY, 0);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> eventLoop = new Pair<>(<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> new NioEventLoopGroup(threadCount,<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> new DefaultThreadFactory("RPCClient-NioEventLoopGroup", true, Thread.NORM_PRIORITY)),<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> NioSocketChannel.class);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> DEFAULT_EVENT_LOOP = eventLoop;<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> return eventLoop;<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> static Pair<EventLoopGroup, Class<? extends Channel>> getEventLoopConfig(Configuration conf) {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> String name = conf.get(EVENT_LOOP_CONFIG);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> if (name == null) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> return getDefaultEventLoopConfig(conf);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> if (StringUtils.isBlank(name)) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> return null;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> }<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> return EVENT_LOOP_CONFIG_MAP.get(name);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span>}<a name="line.118"></a> |
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