Google Git
Sign in
apache / hbase-site / dc97eead565e541d38e7e85d1ba797b56b79bbf5 / . / testdevapidocs / src-html / org / apache / hadoop / hbase / util / MultiThreadedReaderWithACL.html
blob: bafaa54ce8604d7bfdcc98ef5609d0a0a0658cd4 [file] [log] [blame]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<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 or more<a name="line.2"></a>
<span class="sourceLineNo">003</span> * contributor license agreements. See the NOTICE file distributed with this<a name="line.3"></a>
<span class="sourceLineNo">004</span> * work for additional information regarding copyright ownership. The ASF<a name="line.4"></a>
<span class="sourceLineNo">005</span> * licenses this file to you under the Apache License, Version 2.0 (the<a name="line.5"></a>
<span class="sourceLineNo">006</span> * "License"); you may not use this file except in compliance with the License.<a name="line.6"></a>
<span class="sourceLineNo">007</span> * You may obtain a copy of the License at<a name="line.7"></a>
<span class="sourceLineNo">008</span> *<a name="line.8"></a>
<span class="sourceLineNo">009</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<span class="sourceLineNo">010</span> *<a name="line.10"></a>
<span class="sourceLineNo">011</span> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<span class="sourceLineNo">012</span> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT<a name="line.12"></a>
<span class="sourceLineNo">013</span> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the<a name="line.13"></a>
<span class="sourceLineNo">014</span> * License for the specific language governing permissions and limitations<a name="line.14"></a>
<span class="sourceLineNo">015</span> * under the License.<a name="line.15"></a>
<span class="sourceLineNo">016</span> */<a name="line.16"></a>
<span class="sourceLineNo">017</span>package org.apache.hadoop.hbase.util;<a name="line.17"></a>
<span class="sourceLineNo">018</span><a name="line.18"></a>
<span class="sourceLineNo">019</span>import java.io.IOException;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.security.PrivilegedExceptionAction;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.HashMap;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.Map;<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.hadoop.conf.Configuration;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.TableName;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.Get;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.Result;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.Table;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.security.HBaseKerberosUtils;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.security.User;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.util.test.LoadTestDataGenerator;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.apache.hadoop.security.UserGroupInformation;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.slf4j.Logger;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.slf4j.LoggerFactory;<a name="line.34"></a>
<span class="sourceLineNo">035</span><a name="line.35"></a>
<span class="sourceLineNo">036</span>/**<a name="line.36"></a>
<span class="sourceLineNo">037</span> * A MultiThreadReader that helps to work with ACL<a name="line.37"></a>
<span class="sourceLineNo">038</span> */<a name="line.38"></a>
<span class="sourceLineNo">039</span>public class MultiThreadedReaderWithACL extends MultiThreadedReader {<a name="line.39"></a>
<span class="sourceLineNo">040</span> private static final Logger LOG = LoggerFactory.getLogger(MultiThreadedReaderWithACL.class);<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span> private static final String COMMA = ",";<a name="line.42"></a>
<span class="sourceLineNo">043</span> /**<a name="line.43"></a>
<span class="sourceLineNo">044</span> * Maps user with Table instance. Because the table instance has to be created<a name="line.44"></a>
<span class="sourceLineNo">045</span> * per user inorder to work in that user's context<a name="line.45"></a>
<span class="sourceLineNo">046</span> */<a name="line.46"></a>
<span class="sourceLineNo">047</span> private Map&lt;String, Table&gt; userVsTable = new HashMap&lt;&gt;();<a name="line.47"></a>
<span class="sourceLineNo">048</span> private Map&lt;String, User&gt; users = new HashMap&lt;&gt;();<a name="line.48"></a>
<span class="sourceLineNo">049</span> private String[] userNames;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> public MultiThreadedReaderWithACL(LoadTestDataGenerator dataGen, Configuration conf,<a name="line.51"></a>
<span class="sourceLineNo">052</span> TableName tableName, double verifyPercent, String userNames) throws IOException {<a name="line.52"></a>
<span class="sourceLineNo">053</span> super(dataGen, conf, tableName, verifyPercent);<a name="line.53"></a>
<span class="sourceLineNo">054</span> this.userNames = userNames.split(COMMA);<a name="line.54"></a>
<span class="sourceLineNo">055</span> }<a name="line.55"></a>
<span class="sourceLineNo">056</span><a name="line.56"></a>
<span class="sourceLineNo">057</span> @Override<a name="line.57"></a>
<span class="sourceLineNo">058</span> protected void addReaderThreads(int numThreads) throws IOException {<a name="line.58"></a>
<span class="sourceLineNo">059</span> for (int i = 0; i &lt; numThreads; ++i) {<a name="line.59"></a>
<span class="sourceLineNo">060</span> HBaseReaderThread reader = new HBaseReaderThreadWithACL(i);<a name="line.60"></a>
<span class="sourceLineNo">061</span> readers.add(reader);<a name="line.61"></a>
<span class="sourceLineNo">062</span> }<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> public class HBaseReaderThreadWithACL extends HBaseReaderThread {<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span> public HBaseReaderThreadWithACL(int readerId) throws IOException {<a name="line.67"></a>
<span class="sourceLineNo">068</span> super(readerId);<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> @Override<a name="line.71"></a>
<span class="sourceLineNo">072</span> protected Table createTable() throws IOException {<a name="line.72"></a>
<span class="sourceLineNo">073</span> return null;<a name="line.73"></a>
<span class="sourceLineNo">074</span> }<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span> @Override<a name="line.76"></a>
<span class="sourceLineNo">077</span> protected void closeTable() {<a name="line.77"></a>
<span class="sourceLineNo">078</span> for (Table table : userVsTable.values()) {<a name="line.78"></a>
<span class="sourceLineNo">079</span> try {<a name="line.79"></a>
<span class="sourceLineNo">080</span> table.close();<a name="line.80"></a>
<span class="sourceLineNo">081</span> } catch (Exception e) {<a name="line.81"></a>
<span class="sourceLineNo">082</span> LOG.error("Error while closing the table " + table.getName(), e);<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> }<a name="line.85"></a>
<span class="sourceLineNo">086</span><a name="line.86"></a>
<span class="sourceLineNo">087</span> @Override<a name="line.87"></a>
<span class="sourceLineNo">088</span> public void queryKey(final Get get, final boolean verify, final long keyToRead)<a name="line.88"></a>
<span class="sourceLineNo">089</span> throws IOException {<a name="line.89"></a>
<span class="sourceLineNo">090</span> final String rowKey = Bytes.toString(get.getRow());<a name="line.90"></a>
<span class="sourceLineNo">091</span><a name="line.91"></a>
<span class="sourceLineNo">092</span> // read the data<a name="line.92"></a>
<span class="sourceLineNo">093</span> final long start = System.nanoTime();<a name="line.93"></a>
<span class="sourceLineNo">094</span> PrivilegedExceptionAction&lt;Object&gt; action = new PrivilegedExceptionAction&lt;Object&gt;() {<a name="line.94"></a>
<span class="sourceLineNo">095</span> @Override<a name="line.95"></a>
<span class="sourceLineNo">096</span> public Object run() throws Exception {<a name="line.96"></a>
<span class="sourceLineNo">097</span> Table localTable = null;<a name="line.97"></a>
<span class="sourceLineNo">098</span> try {<a name="line.98"></a>
<span class="sourceLineNo">099</span> Result result = null;<a name="line.99"></a>
<span class="sourceLineNo">100</span> int specialPermCellInsertionFactor = Integer.parseInt(dataGenerator.getArgs()[2]);<a name="line.100"></a>
<span class="sourceLineNo">101</span> int mod = ((int) keyToRead % userNames.length);<a name="line.101"></a>
<span class="sourceLineNo">102</span> if (userVsTable.get(userNames[mod]) == null) {<a name="line.102"></a>
<span class="sourceLineNo">103</span> localTable = connection.getTable(tableName);<a name="line.103"></a>
<span class="sourceLineNo">104</span> userVsTable.put(userNames[mod], localTable);<a name="line.104"></a>
<span class="sourceLineNo">105</span> result = localTable.get(get);<a name="line.105"></a>
<span class="sourceLineNo">106</span> } else {<a name="line.106"></a>
<span class="sourceLineNo">107</span> localTable = userVsTable.get(userNames[mod]);<a name="line.107"></a>
<span class="sourceLineNo">108</span> result = localTable.get(get);<a name="line.108"></a>
<span class="sourceLineNo">109</span> }<a name="line.109"></a>
<span class="sourceLineNo">110</span> boolean isNullExpected = ((((int) keyToRead % specialPermCellInsertionFactor)) == 0);<a name="line.110"></a>
<span class="sourceLineNo">111</span> long end = System.nanoTime();<a name="line.111"></a>
<span class="sourceLineNo">112</span> verifyResultsAndUpdateMetrics(verify, get, end - start, result, localTable, isNullExpected);<a name="line.112"></a>
<span class="sourceLineNo">113</span> } catch (IOException e) {<a name="line.113"></a>
<span class="sourceLineNo">114</span> recordFailure(keyToRead);<a name="line.114"></a>
<span class="sourceLineNo">115</span> }<a name="line.115"></a>
<span class="sourceLineNo">116</span> return null;<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>
<span class="sourceLineNo">119</span> if (userNames != null &amp;&amp; userNames.length &gt; 0) {<a name="line.119"></a>
<span class="sourceLineNo">120</span> int mod = ((int) keyToRead % userNames.length);<a name="line.120"></a>
<span class="sourceLineNo">121</span> User user;<a name="line.121"></a>
<span class="sourceLineNo">122</span> UserGroupInformation realUserUgi;<a name="line.122"></a>
<span class="sourceLineNo">123</span> if(!users.containsKey(userNames[mod])) {<a name="line.123"></a>
<span class="sourceLineNo">124</span> if(User.isHBaseSecurityEnabled(conf)) {<a name="line.124"></a>
<span class="sourceLineNo">125</span> realUserUgi = HBaseKerberosUtils.loginAndReturnUGI(conf, userNames[mod]);<a name="line.125"></a>
<span class="sourceLineNo">126</span> } else {<a name="line.126"></a>
<span class="sourceLineNo">127</span> realUserUgi = UserGroupInformation.createRemoteUser(userNames[mod]);<a name="line.127"></a>
<span class="sourceLineNo">128</span> }<a name="line.128"></a>
<span class="sourceLineNo">129</span> user = User.create(realUserUgi);<a name="line.129"></a>
<span class="sourceLineNo">130</span> users.put(userNames[mod], user);<a name="line.130"></a>
<span class="sourceLineNo">131</span> } else {<a name="line.131"></a>
<span class="sourceLineNo">132</span> user = users.get(userNames[mod]);<a name="line.132"></a>
<span class="sourceLineNo">133</span> }<a name="line.133"></a>
<span class="sourceLineNo">134</span> try {<a name="line.134"></a>
<span class="sourceLineNo">135</span> user.runAs(action);<a name="line.135"></a>
<span class="sourceLineNo">136</span> } catch (Exception e) {<a name="line.136"></a>
<span class="sourceLineNo">137</span> recordFailure(keyToRead);<a name="line.137"></a>
<span class="sourceLineNo">138</span> }<a name="line.138"></a>
<span class="sourceLineNo">139</span> }<a name="line.139"></a>
<span class="sourceLineNo">140</span> }<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span> private void recordFailure(final long keyToRead) {<a name="line.142"></a>
<span class="sourceLineNo">143</span> numReadFailures.addAndGet(1);<a name="line.143"></a>
<span class="sourceLineNo">144</span> LOG.debug("[" + readerId + "] FAILED read, key = " + (keyToRead + "") + ", "<a name="line.144"></a>
<span class="sourceLineNo">145</span> + "time from start: " + (System.currentTimeMillis() - startTimeMs) + " ms");<a name="line.145"></a>
<span class="sourceLineNo">146</span> }<a name="line.146"></a>
<span class="sourceLineNo">147</span> }<a name="line.147"></a>
<span class="sourceLineNo">148</span><a name="line.148"></a>
<span class="sourceLineNo">149</span>}<a name="line.149"></a>
</pre>
</div>
</body>
</html>