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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><a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.zookeeper;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><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.HBaseConfiguration;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseInterfaceAudience;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.zookeeper.ZooKeeperMain;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.zookeeper.cli.CliException;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span><a name="line.30"></a> |
| <span class="sourceLineNo">031</span>/**<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * Tool for running ZookeeperMain from HBase by reading a ZooKeeper server<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * from HBase XML configuration.<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> */<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>public class ZKMainServer {<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> private static final String SERVER_ARG = "-server";<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span> public String parse(final Configuration c) {<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> return ZKConfig.getZKQuorumServersString(c);<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> }<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span> /**<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * ZooKeeper 3.4.6 broke being able to pass commands on command line.<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * See ZOOKEEPER-1897. This class is a hack to restore this faclity.<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> */<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> private static class HACK_UNTIL_ZOOKEEPER_1897_ZooKeeperMain extends ZooKeeperMain {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> public HACK_UNTIL_ZOOKEEPER_1897_ZooKeeperMain(String[] args)<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> throws IOException, InterruptedException {<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> super(args);<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> // Make sure we are connected before we proceed. Can take a while on some systems. If we<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> // run the command without being connected, we get ConnectionLoss KeeperErrorConnection...<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> // Make it 30seconds. We dont' have a config in this context and zk doesn't have<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> // a timeout until after connection. 30000ms is default for zk.<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> ZooKeeperHelper.ensureConnectedZooKeeper(this.zk, 30000);<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> }<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> /**<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * Run the command-line args passed. Calls System.exit when done.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * @throws IOException in case of a network failure<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * @throws InterruptedException if the ZooKeeper client closes<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * @throws CliException if the ZooKeeper exception happens in cli command<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> */<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> void runCmdLine() throws IOException, InterruptedException, CliException {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> processCmd(this.cl);<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> System.exit(0);<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> }<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> }<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> /**<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * @param args the arguments to check<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * @return True if argument strings have a '-server' in them.<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> */<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> private static boolean hasServer(final String[] args) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> return args.length > 0 && args[0].equals(SERVER_ARG);<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> /**<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * @param args the arguments to check for command-line arguments<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * @return True if command-line arguments were passed.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> */<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> private static boolean hasCommandLineArguments(final String[] args) {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> if (hasServer(args)) {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> if (args.length < 2) {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> throw new IllegalStateException("-server param but no value");<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> return args.length > 2;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> }<a name="line.89"></a> |
| <span class="sourceLineNo">090</span><a name="line.90"></a> |
| <span class="sourceLineNo">091</span> return args.length > 0;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> /**<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * Run the tool.<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * @param args Command line arguments. First arg is path to zookeepers file.<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> */<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> public static void main(String[] args) throws Exception {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> String [] newArgs = args;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> if (!hasServer(args)) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> // Add the zk ensemble from configuration if none passed on command-line.<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> Configuration conf = HBaseConfiguration.create();<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> String hostport = new ZKMainServer().parse(conf);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> if (hostport != null && hostport.length() > 0) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> newArgs = new String[args.length + 2];<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> System.arraycopy(args, 0, newArgs, 2, args.length);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> newArgs[0] = "-server";<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> newArgs[1] = hostport;<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> }<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> // If command-line arguments, run our hack so they are executed.<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> // ZOOKEEPER-1897 was committed to zookeeper-3.4.6 but elsewhere in this class we say<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> // 3.4.6 breaks command-processing; TODO.<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> if (hasCommandLineArguments(args)) {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> HACK_UNTIL_ZOOKEEPER_1897_ZooKeeperMain zkm =<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> new HACK_UNTIL_ZOOKEEPER_1897_ZooKeeperMain(newArgs);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> zkm.runCmdLine();<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> } else {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> ZooKeeperMain.main(newArgs);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span>}<a name="line.122"></a> |
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