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From st...@apache.org
Subject [29/51] [partial] hbase-site git commit: HBASE-17121 Undo the building of xref as part of site build; remove xref dirs
Date Fri, 18 Nov 2016 18:56:24 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7b604147/xref-test/org/apache/hadoop/hbase/ScanPerformanceEvaluation.html
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-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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-<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
-<title>ScanPerformanceEvaluation xref</title>
-<link type="text/css" rel="stylesheet" href="../../../../stylesheet.css" />
-</head>
-<body>
-<div id="overview"><a href="../../../../../testdevapidocs/org/apache/hadoop/hbase/ScanPerformanceEvaluation.html">View Javadoc</a></div><pre>
-
-<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_javadoccomment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
-<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_javadoccomment"> * or more contributor license agreements.  See the NOTICE file</em>
-<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_javadoccomment"> * distributed with this work for additional information</em>
-<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_javadoccomment"> * regarding copyright ownership.  The ASF licenses this file</em>
-<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_javadoccomment"> * to you under the Apache License, Version 2.0 (the</em>
-<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_javadoccomment"> * "License"); you may not use this file except in compliance</em>
-<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_javadoccomment"> * with the License.  You may obtain a copy of the License at</em>
-<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_javadoccomment"> *     <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
-<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_javadoccomment"> *</em>
-<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_javadoccomment"> * Unless required by applicable law or agreed to in writing, software</em>
-<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_javadoccomment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
-<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_javadoccomment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
-<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_javadoccomment"> * See the License for the specific language governing permissions and</em>
-<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_javadoccomment"> * limitations under the License.</em>
-<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="18" href="#18">18</a>  
-<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">package</strong> org.apache.hadoop.hbase;
-<a class="jxr_linenumber" name="20" href="#20">20</a>  
-<a class="jxr_linenumber" name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> java.io.IOException;
-<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.util.concurrent.TimeUnit;
-<a class="jxr_linenumber" name="23" href="#23">23</a>  
-<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.cli.CommandLine;
-<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.conf.Configuration;
-<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.fs.FSDataInputStream;
-<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.fs.FileSystem;
-<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.fs.Path;
-<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.classification.InterfaceAudience;
-<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.Connection;
-<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.ConnectionFactory;
-<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.Result;
-<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.ResultScanner;
-<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.Scan;
-<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.Table;
-<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.TableSnapshotScanner;
-<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.metrics.ScanMetrics;
-<a class="jxr_linenumber" name="38" href="#38">38</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.io.ImmutableBytesWritable;
-<a class="jxr_linenumber" name="39" href="#39">39</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil;
-<a class="jxr_linenumber" name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.mapreduce.TableMapper;
-<a class="jxr_linenumber" name="41" href="#41">41</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.util.AbstractHBaseTool;
-<a class="jxr_linenumber" name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.util.FSUtils;
-<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.io.NullWritable;
-<a class="jxr_linenumber" name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.mapreduce.Counters;
-<a class="jxr_linenumber" name="45" href="#45">45</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.mapreduce.Job;
-<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;
-<a class="jxr_linenumber" name="47" href="#47">47</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.util.StringUtils;
-<a class="jxr_linenumber" name="48" href="#48">48</a>  <strong class="jxr_keyword">import</strong> org.apache.hadoop.util.ToolRunner;
-<a class="jxr_linenumber" name="49" href="#49">49</a>  
-<a class="jxr_linenumber" name="50" href="#50">50</a>  <strong class="jxr_keyword">import</strong> com.google.common.base.Stopwatch;
-<a class="jxr_linenumber" name="51" href="#51">51</a>  
-<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="53" href="#53">53</a>  <em class="jxr_javadoccomment"> * A simple performance evaluation tool for single client and MR scans</em>
-<a class="jxr_linenumber" name="54" href="#54">54</a>  <em class="jxr_javadoccomment"> * and snapshot scans.</em>
-<a class="jxr_linenumber" name="55" href="#55">55</a>  <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="56" href="#56">56</a>  @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)
-<a class="jxr_linenumber" name="57" href="#57">57</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/hadoop/hbase/ScanPerformanceEvaluation.html">ScanPerformanceEvaluation</a> <strong class="jxr_keyword">extends</strong> AbstractHBaseTool {
-<a class="jxr_linenumber" name="58" href="#58">58</a>  
-<a class="jxr_linenumber" name="59" href="#59">59</a>    <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String HBASE_COUNTER_GROUP_NAME = <span class="jxr_string">"HBase Counters"</span>;
-<a class="jxr_linenumber" name="60" href="#60">60</a>  
-<a class="jxr_linenumber" name="61" href="#61">61</a>    <strong class="jxr_keyword">private</strong> String type;
-<a class="jxr_linenumber" name="62" href="#62">62</a>    <strong class="jxr_keyword">private</strong> String file;
-<a class="jxr_linenumber" name="63" href="#63">63</a>    <strong class="jxr_keyword">private</strong> String tablename;
-<a class="jxr_linenumber" name="64" href="#64">64</a>    <strong class="jxr_keyword">private</strong> String snapshotName;
-<a class="jxr_linenumber" name="65" href="#65">65</a>    <strong class="jxr_keyword">private</strong> String restoreDir;
-<a class="jxr_linenumber" name="66" href="#66">66</a>    <strong class="jxr_keyword">private</strong> String caching;
-<a class="jxr_linenumber" name="67" href="#67">67</a>  
-<a class="jxr_linenumber" name="68" href="#68">68</a>    @Override
-<a class="jxr_linenumber" name="69" href="#69">69</a>    <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setConf(Configuration conf) {
-<a class="jxr_linenumber" name="70" href="#70">70</a>      <strong class="jxr_keyword">super</strong>.setConf(conf);
-<a class="jxr_linenumber" name="71" href="#71">71</a>      Path rootDir;
-<a class="jxr_linenumber" name="72" href="#72">72</a>      <strong class="jxr_keyword">try</strong> {
-<a class="jxr_linenumber" name="73" href="#73">73</a>        rootDir = FSUtils.getRootDir(conf);
-<a class="jxr_linenumber" name="74" href="#74">74</a>        rootDir.getFileSystem(conf);
-<a class="jxr_linenumber" name="75" href="#75">75</a>      } <strong class="jxr_keyword">catch</strong> (IOException ex) {
-<a class="jxr_linenumber" name="76" href="#76">76</a>        <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeException(ex);
-<a class="jxr_linenumber" name="77" href="#77">77</a>      }
-<a class="jxr_linenumber" name="78" href="#78">78</a>    }
-<a class="jxr_linenumber" name="79" href="#79">79</a>  
-<a class="jxr_linenumber" name="80" href="#80">80</a>    @Override
-<a class="jxr_linenumber" name="81" href="#81">81</a>    <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> addOptions() {
-<a class="jxr_linenumber" name="82" href="#82">82</a>      <strong class="jxr_keyword">this</strong>.addRequiredOptWithArg(<span class="jxr_string">"t"</span>, <span class="jxr_string">"type"</span>, <span class="jxr_string">"the type of the test. One of the following: streaming|scan|snapshotscan|scanmapreduce|snapshotscanmapreduce"</span>);
-<a class="jxr_linenumber" name="83" href="#83">83</a>      <strong class="jxr_keyword">this</strong>.addOptWithArg(<span class="jxr_string">"f"</span>, <span class="jxr_string">"file"</span>, <span class="jxr_string">"the filename to read from"</span>);
-<a class="jxr_linenumber" name="84" href="#84">84</a>      <strong class="jxr_keyword">this</strong>.addOptWithArg(<span class="jxr_string">"tn"</span>, <span class="jxr_string">"table"</span>, <span class="jxr_string">"the tablename to read from"</span>);
-<a class="jxr_linenumber" name="85" href="#85">85</a>      <strong class="jxr_keyword">this</strong>.addOptWithArg(<span class="jxr_string">"sn"</span>, <span class="jxr_string">"snapshot"</span>, <span class="jxr_string">"the snapshot name to read from"</span>);
-<a class="jxr_linenumber" name="86" href="#86">86</a>      <strong class="jxr_keyword">this</strong>.addOptWithArg(<span class="jxr_string">"rs"</span>, <span class="jxr_string">"restoredir"</span>, <span class="jxr_string">"the directory to restore the snapshot"</span>);
-<a class="jxr_linenumber" name="87" href="#87">87</a>      <strong class="jxr_keyword">this</strong>.addOptWithArg(<span class="jxr_string">"ch"</span>, <span class="jxr_string">"caching"</span>, <span class="jxr_string">"scanner caching value"</span>);
-<a class="jxr_linenumber" name="88" href="#88">88</a>    }
-<a class="jxr_linenumber" name="89" href="#89">89</a>  
-<a class="jxr_linenumber" name="90" href="#90">90</a>    @Override
-<a class="jxr_linenumber" name="91" href="#91">91</a>    <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> processOptions(CommandLine cmd) {
-<a class="jxr_linenumber" name="92" href="#92">92</a>      type = cmd.getOptionValue(<span class="jxr_string">"type"</span>);
-<a class="jxr_linenumber" name="93" href="#93">93</a>      file = cmd.getOptionValue(<span class="jxr_string">"file"</span>);
-<a class="jxr_linenumber" name="94" href="#94">94</a>      tablename = cmd.getOptionValue(<span class="jxr_string">"table"</span>);
-<a class="jxr_linenumber" name="95" href="#95">95</a>      snapshotName = cmd.getOptionValue(<span class="jxr_string">"snapshot"</span>);
-<a class="jxr_linenumber" name="96" href="#96">96</a>      restoreDir = cmd.getOptionValue(<span class="jxr_string">"restoredir"</span>);
-<a class="jxr_linenumber" name="97" href="#97">97</a>      caching = cmd.getOptionValue(<span class="jxr_string">"caching"</span>);
-<a class="jxr_linenumber" name="98" href="#98">98</a>    }
-<a class="jxr_linenumber" name="99" href="#99">99</a>  
-<a class="jxr_linenumber" name="100" href="#100">100</a>   <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> testHdfsStreaming(Path filename) <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="101" href="#101">101</a>     byte[] buf = <strong class="jxr_keyword">new</strong> byte[1024];
-<a class="jxr_linenumber" name="102" href="#102">102</a>     FileSystem fs = filename.getFileSystem(getConf());
-<a class="jxr_linenumber" name="103" href="#103">103</a> 
-<a class="jxr_linenumber" name="104" href="#104">104</a>     <em class="jxr_comment">// read the file from start to finish</em>
-<a class="jxr_linenumber" name="105" href="#105">105</a>     Stopwatch fileOpenTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="106" href="#106">106</a>     Stopwatch streamTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="107" href="#107">107</a> 
-<a class="jxr_linenumber" name="108" href="#108">108</a>     fileOpenTimer.start();
-<a class="jxr_linenumber" name="109" href="#109">109</a>     FSDataInputStream in = fs.open(filename);
-<a class="jxr_linenumber" name="110" href="#110">110</a>     fileOpenTimer.stop();
-<a class="jxr_linenumber" name="111" href="#111">111</a> 
-<a class="jxr_linenumber" name="112" href="#112">112</a>     <strong class="jxr_keyword">long</strong> totalBytes = 0;
-<a class="jxr_linenumber" name="113" href="#113">113</a>     streamTimer.start();
-<a class="jxr_linenumber" name="114" href="#114">114</a>     <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
-<a class="jxr_linenumber" name="115" href="#115">115</a>       <strong class="jxr_keyword">int</strong> read = in.read(buf);
-<a class="jxr_linenumber" name="116" href="#116">116</a>       <strong class="jxr_keyword">if</strong> (read &lt; 0) {
-<a class="jxr_linenumber" name="117" href="#117">117</a>         <strong class="jxr_keyword">break</strong>;
-<a class="jxr_linenumber" name="118" href="#118">118</a>       }
-<a class="jxr_linenumber" name="119" href="#119">119</a>       totalBytes += read;
-<a class="jxr_linenumber" name="120" href="#120">120</a>     }
-<a class="jxr_linenumber" name="121" href="#121">121</a>     streamTimer.stop();
-<a class="jxr_linenumber" name="122" href="#122">122</a> 
-<a class="jxr_linenumber" name="123" href="#123">123</a>     <strong class="jxr_keyword">double</strong> throughput = (<strong class="jxr_keyword">double</strong>)totalBytes / streamTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="124" href="#124">124</a> 
-<a class="jxr_linenumber" name="125" href="#125">125</a>     System.out.println(<span class="jxr_string">"HDFS streaming: "</span>);
-<a class="jxr_linenumber" name="126" href="#126">126</a>     System.out.println(<span class="jxr_string">"total time to open: "</span> + fileOpenTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="127" href="#127">127</a>     System.out.println(<span class="jxr_string">"total time to read: "</span> + streamTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="128" href="#128">128</a>     System.out.println(<span class="jxr_string">"total bytes: "</span> + totalBytes + <span class="jxr_string">" bytes ("</span>
-<a class="jxr_linenumber" name="129" href="#129">129</a>         + StringUtils.humanReadableInt(totalBytes) + <span class="jxr_string">")"</span>);
-<a class="jxr_linenumber" name="130" href="#130">130</a>     System.out.println(<span class="jxr_string">"throghput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughput) + <span class="jxr_string">"B/s"</span>);
-<a class="jxr_linenumber" name="131" href="#131">131</a>   }
-<a class="jxr_linenumber" name="132" href="#132">132</a> 
-<a class="jxr_linenumber" name="133" href="#133">133</a>   <strong class="jxr_keyword">private</strong> Scan getScan() {
-<a class="jxr_linenumber" name="134" href="#134">134</a>     Scan scan = <strong class="jxr_keyword">new</strong> Scan(); <em class="jxr_comment">// default scan settings</em>
-<a class="jxr_linenumber" name="135" href="#135">135</a>     scan.setCacheBlocks(false);
-<a class="jxr_linenumber" name="136" href="#136">136</a>     scan.setMaxVersions(1);
-<a class="jxr_linenumber" name="137" href="#137">137</a>     scan.setScanMetricsEnabled(<strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="138" href="#138">138</a>     <strong class="jxr_keyword">if</strong> (caching != <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="139" href="#139">139</a>       scan.setCaching(Integer.parseInt(caching));
-<a class="jxr_linenumber" name="140" href="#140">140</a>     }
-<a class="jxr_linenumber" name="141" href="#141">141</a> 
-<a class="jxr_linenumber" name="142" href="#142">142</a>     <strong class="jxr_keyword">return</strong> scan;
-<a class="jxr_linenumber" name="143" href="#143">143</a>   }
-<a class="jxr_linenumber" name="144" href="#144">144</a> 
-<a class="jxr_linenumber" name="145" href="#145">145</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testScan() <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="146" href="#146">146</a>     Stopwatch tableOpenTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="147" href="#147">147</a>     Stopwatch scanOpenTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="148" href="#148">148</a>     Stopwatch scanTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="149" href="#149">149</a> 
-<a class="jxr_linenumber" name="150" href="#150">150</a>     tableOpenTimer.start();
-<a class="jxr_linenumber" name="151" href="#151">151</a>     Connection connection = ConnectionFactory.createConnection(getConf());
-<a class="jxr_linenumber" name="152" href="#152">152</a>     Table table = connection.getTable(TableName.valueOf(tablename));
-<a class="jxr_linenumber" name="153" href="#153">153</a>     tableOpenTimer.stop();
-<a class="jxr_linenumber" name="154" href="#154">154</a> 
-<a class="jxr_linenumber" name="155" href="#155">155</a>     Scan scan = getScan();
-<a class="jxr_linenumber" name="156" href="#156">156</a>     scanOpenTimer.start();
-<a class="jxr_linenumber" name="157" href="#157">157</a>     ResultScanner scanner = table.getScanner(scan);
-<a class="jxr_linenumber" name="158" href="#158">158</a>     scanOpenTimer.stop();
-<a class="jxr_linenumber" name="159" href="#159">159</a> 
-<a class="jxr_linenumber" name="160" href="#160">160</a>     <strong class="jxr_keyword">long</strong> numRows = 0;
-<a class="jxr_linenumber" name="161" href="#161">161</a>     <strong class="jxr_keyword">long</strong> numCells = 0;
-<a class="jxr_linenumber" name="162" href="#162">162</a>     scanTimer.start();
-<a class="jxr_linenumber" name="163" href="#163">163</a>     <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
-<a class="jxr_linenumber" name="164" href="#164">164</a>       Result result = scanner.next();
-<a class="jxr_linenumber" name="165" href="#165">165</a>       <strong class="jxr_keyword">if</strong> (result == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="166" href="#166">166</a>         <strong class="jxr_keyword">break</strong>;
-<a class="jxr_linenumber" name="167" href="#167">167</a>       }
-<a class="jxr_linenumber" name="168" href="#168">168</a>       numRows++;
-<a class="jxr_linenumber" name="169" href="#169">169</a> 
-<a class="jxr_linenumber" name="170" href="#170">170</a>       numCells += result.rawCells().length;
-<a class="jxr_linenumber" name="171" href="#171">171</a>     }
-<a class="jxr_linenumber" name="172" href="#172">172</a>     scanTimer.stop();
-<a class="jxr_linenumber" name="173" href="#173">173</a>     scanner.close();
-<a class="jxr_linenumber" name="174" href="#174">174</a>     table.close();
-<a class="jxr_linenumber" name="175" href="#175">175</a>     connection.close();
-<a class="jxr_linenumber" name="176" href="#176">176</a> 
-<a class="jxr_linenumber" name="177" href="#177">177</a>     ScanMetrics metrics = scan.getScanMetrics();
-<a class="jxr_linenumber" name="178" href="#178">178</a>     <strong class="jxr_keyword">long</strong> totalBytes = metrics.countOfBytesInResults.get();
-<a class="jxr_linenumber" name="179" href="#179">179</a>     <strong class="jxr_keyword">double</strong> throughput = (<strong class="jxr_keyword">double</strong>)totalBytes / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="180" href="#180">180</a>     <strong class="jxr_keyword">double</strong> throughputRows = (<strong class="jxr_keyword">double</strong>)numRows / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="181" href="#181">181</a>     <strong class="jxr_keyword">double</strong> throughputCells = (<strong class="jxr_keyword">double</strong>)numCells / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="182" href="#182">182</a> 
-<a class="jxr_linenumber" name="183" href="#183">183</a>     System.out.println(<span class="jxr_string">"HBase scan: "</span>);
-<a class="jxr_linenumber" name="184" href="#184">184</a>     System.out.println(<span class="jxr_string">"total time to open table: "</span> + tableOpenTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="185" href="#185">185</a>     System.out.println(<span class="jxr_string">"total time to open scanner: "</span> + scanOpenTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="186" href="#186">186</a>     System.out.println(<span class="jxr_string">"total time to scan: "</span> + scanTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="187" href="#187">187</a> 
-<a class="jxr_linenumber" name="188" href="#188">188</a>     System.out.println(<span class="jxr_string">"Scan metrics:\n"</span> + metrics.getMetricsMap());
-<a class="jxr_linenumber" name="189" href="#189">189</a> 
-<a class="jxr_linenumber" name="190" href="#190">190</a>     System.out.println(<span class="jxr_string">"total bytes: "</span> + totalBytes + <span class="jxr_string">" bytes ("</span>
-<a class="jxr_linenumber" name="191" href="#191">191</a>         + StringUtils.humanReadableInt(totalBytes) + <span class="jxr_string">")"</span>);
-<a class="jxr_linenumber" name="192" href="#192">192</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughput) + <span class="jxr_string">"B/s"</span>);
-<a class="jxr_linenumber" name="193" href="#193">193</a>     System.out.println(<span class="jxr_string">"total rows  : "</span> + numRows);
-<a class="jxr_linenumber" name="194" href="#194">194</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughputRows) + <span class="jxr_string">" rows/s"</span>);
-<a class="jxr_linenumber" name="195" href="#195">195</a>     System.out.println(<span class="jxr_string">"total cells : "</span> + numCells);
-<a class="jxr_linenumber" name="196" href="#196">196</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughputCells) + <span class="jxr_string">" cells/s"</span>);
-<a class="jxr_linenumber" name="197" href="#197">197</a>   }
-<a class="jxr_linenumber" name="198" href="#198">198</a> 
-<a class="jxr_linenumber" name="199" href="#199">199</a> 
-<a class="jxr_linenumber" name="200" href="#200">200</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSnapshotScan() <strong class="jxr_keyword">throws</strong> IOException {
-<a class="jxr_linenumber" name="201" href="#201">201</a>     Stopwatch snapshotRestoreTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="202" href="#202">202</a>     Stopwatch scanOpenTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="203" href="#203">203</a>     Stopwatch scanTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="204" href="#204">204</a> 
-<a class="jxr_linenumber" name="205" href="#205">205</a>     Path restoreDir = <strong class="jxr_keyword">new</strong> Path(<strong class="jxr_keyword">this</strong>.restoreDir);
-<a class="jxr_linenumber" name="206" href="#206">206</a> 
-<a class="jxr_linenumber" name="207" href="#207">207</a>     snapshotRestoreTimer.start();
-<a class="jxr_linenumber" name="208" href="#208">208</a>     restoreDir.getFileSystem(conf).delete(restoreDir, <strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="209" href="#209">209</a>     snapshotRestoreTimer.stop();
-<a class="jxr_linenumber" name="210" href="#210">210</a> 
-<a class="jxr_linenumber" name="211" href="#211">211</a>     Scan scan = getScan();
-<a class="jxr_linenumber" name="212" href="#212">212</a>     scanOpenTimer.start();
-<a class="jxr_linenumber" name="213" href="#213">213</a>     TableSnapshotScanner scanner = <strong class="jxr_keyword">new</strong> TableSnapshotScanner(conf, restoreDir, snapshotName, scan);
-<a class="jxr_linenumber" name="214" href="#214">214</a>     scanOpenTimer.stop();
-<a class="jxr_linenumber" name="215" href="#215">215</a> 
-<a class="jxr_linenumber" name="216" href="#216">216</a>     <strong class="jxr_keyword">long</strong> numRows = 0;
-<a class="jxr_linenumber" name="217" href="#217">217</a>     <strong class="jxr_keyword">long</strong> numCells = 0;
-<a class="jxr_linenumber" name="218" href="#218">218</a>     scanTimer.start();
-<a class="jxr_linenumber" name="219" href="#219">219</a>     <strong class="jxr_keyword">while</strong> (<strong class="jxr_keyword">true</strong>) {
-<a class="jxr_linenumber" name="220" href="#220">220</a>       Result result = scanner.next();
-<a class="jxr_linenumber" name="221" href="#221">221</a>       <strong class="jxr_keyword">if</strong> (result == <strong class="jxr_keyword">null</strong>) {
-<a class="jxr_linenumber" name="222" href="#222">222</a>         <strong class="jxr_keyword">break</strong>;
-<a class="jxr_linenumber" name="223" href="#223">223</a>       }
-<a class="jxr_linenumber" name="224" href="#224">224</a>       numRows++;
-<a class="jxr_linenumber" name="225" href="#225">225</a> 
-<a class="jxr_linenumber" name="226" href="#226">226</a>       numCells += result.rawCells().length;
-<a class="jxr_linenumber" name="227" href="#227">227</a>     }
-<a class="jxr_linenumber" name="228" href="#228">228</a>     scanTimer.stop();
-<a class="jxr_linenumber" name="229" href="#229">229</a>     scanner.close();
-<a class="jxr_linenumber" name="230" href="#230">230</a> 
-<a class="jxr_linenumber" name="231" href="#231">231</a>     ScanMetrics metrics = scanner.getScanMetrics();
-<a class="jxr_linenumber" name="232" href="#232">232</a>     <strong class="jxr_keyword">long</strong> totalBytes = metrics.countOfBytesInResults.get();
-<a class="jxr_linenumber" name="233" href="#233">233</a>     <strong class="jxr_keyword">double</strong> throughput = (<strong class="jxr_keyword">double</strong>)totalBytes / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="234" href="#234">234</a>     <strong class="jxr_keyword">double</strong> throughputRows = (<strong class="jxr_keyword">double</strong>)numRows / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="235" href="#235">235</a>     <strong class="jxr_keyword">double</strong> throughputCells = (<strong class="jxr_keyword">double</strong>)numCells / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="236" href="#236">236</a> 
-<a class="jxr_linenumber" name="237" href="#237">237</a>     System.out.println(<span class="jxr_string">"HBase scan snapshot: "</span>);
-<a class="jxr_linenumber" name="238" href="#238">238</a>     System.out.println(<span class="jxr_string">"total time to restore snapshot: "</span> + snapshotRestoreTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="239" href="#239">239</a>     System.out.println(<span class="jxr_string">"total time to open scanner: "</span> + scanOpenTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="240" href="#240">240</a>     System.out.println(<span class="jxr_string">"total time to scan: "</span> + scanTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="241" href="#241">241</a> 
-<a class="jxr_linenumber" name="242" href="#242">242</a>     System.out.println(<span class="jxr_string">"Scan metrics:\n"</span> + metrics.getMetricsMap());
-<a class="jxr_linenumber" name="243" href="#243">243</a> 
-<a class="jxr_linenumber" name="244" href="#244">244</a>     System.out.println(<span class="jxr_string">"total bytes: "</span> + totalBytes + <span class="jxr_string">" bytes ("</span>
-<a class="jxr_linenumber" name="245" href="#245">245</a>         + StringUtils.humanReadableInt(totalBytes) + <span class="jxr_string">")"</span>);
-<a class="jxr_linenumber" name="246" href="#246">246</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughput) + <span class="jxr_string">"B/s"</span>);
-<a class="jxr_linenumber" name="247" href="#247">247</a>     System.out.println(<span class="jxr_string">"total rows  : "</span> + numRows);
-<a class="jxr_linenumber" name="248" href="#248">248</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughputRows) + <span class="jxr_string">" rows/s"</span>);
-<a class="jxr_linenumber" name="249" href="#249">249</a>     System.out.println(<span class="jxr_string">"total cells : "</span> + numCells);
-<a class="jxr_linenumber" name="250" href="#250">250</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughputCells) + <span class="jxr_string">" cells/s"</span>);
-<a class="jxr_linenumber" name="251" href="#251">251</a> 
-<a class="jxr_linenumber" name="252" href="#252">252</a>   }
-<a class="jxr_linenumber" name="253" href="#253">253</a> 
-<a class="jxr_linenumber" name="254" href="#254">254</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> enum <a href="../../../../org/apache/hadoop/hbase/ScanPerformanceEvaluation.html">ScanCounter</a> {
-<a class="jxr_linenumber" name="255" href="#255">255</a>     NUM_ROWS,
-<a class="jxr_linenumber" name="256" href="#256">256</a>     NUM_CELLS,
-<a class="jxr_linenumber" name="257" href="#257">257</a>   }
-<a class="jxr_linenumber" name="258" href="#258">258</a> 
-<a class="jxr_linenumber" name="259" href="#259">259</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> MyMapper&lt;KEYOUT, VALUEOUT&gt; <strong class="jxr_keyword">extends</strong> TableMapper&lt;KEYOUT, VALUEOUT&gt; {
-<a class="jxr_linenumber" name="260" href="#260">260</a>     @Override
-<a class="jxr_linenumber" name="261" href="#261">261</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> map(ImmutableBytesWritable key, Result value,
-<a class="jxr_linenumber" name="262" href="#262">262</a>         Context context) <strong class="jxr_keyword">throws</strong> IOException,
-<a class="jxr_linenumber" name="263" href="#263">263</a>         InterruptedException {
-<a class="jxr_linenumber" name="264" href="#264">264</a>       context.getCounter(ScanCounter.NUM_ROWS).increment(1);
-<a class="jxr_linenumber" name="265" href="#265">265</a>       context.getCounter(ScanCounter.NUM_CELLS).increment(value.rawCells().length);
-<a class="jxr_linenumber" name="266" href="#266">266</a>     }
-<a class="jxr_linenumber" name="267" href="#267">267</a>   }
-<a class="jxr_linenumber" name="268" href="#268">268</a> 
-<a class="jxr_linenumber" name="269" href="#269">269</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testScanMapReduce() <strong class="jxr_keyword">throws</strong> IOException, InterruptedException, ClassNotFoundException {
-<a class="jxr_linenumber" name="270" href="#270">270</a>     Stopwatch scanOpenTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="271" href="#271">271</a>     Stopwatch scanTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="272" href="#272">272</a> 
-<a class="jxr_linenumber" name="273" href="#273">273</a>     Scan scan = getScan();
-<a class="jxr_linenumber" name="274" href="#274">274</a> 
-<a class="jxr_linenumber" name="275" href="#275">275</a>     String jobName = <span class="jxr_string">"testScanMapReduce"</span>;
-<a class="jxr_linenumber" name="276" href="#276">276</a> 
-<a class="jxr_linenumber" name="277" href="#277">277</a>     Job job = <strong class="jxr_keyword">new</strong> Job(conf);
-<a class="jxr_linenumber" name="278" href="#278">278</a>     job.setJobName(jobName);
-<a class="jxr_linenumber" name="279" href="#279">279</a> 
-<a class="jxr_linenumber" name="280" href="#280">280</a>     job.setJarByClass(getClass());
-<a class="jxr_linenumber" name="281" href="#281">281</a> 
-<a class="jxr_linenumber" name="282" href="#282">282</a>     TableMapReduceUtil.initTableMapperJob(
-<a class="jxr_linenumber" name="283" href="#283">283</a>         <strong class="jxr_keyword">this</strong>.tablename,
-<a class="jxr_linenumber" name="284" href="#284">284</a>         scan,
-<a class="jxr_linenumber" name="285" href="#285">285</a>         MyMapper.<strong class="jxr_keyword">class</strong>,
-<a class="jxr_linenumber" name="286" href="#286">286</a>         NullWritable.<strong class="jxr_keyword">class</strong>,
-<a class="jxr_linenumber" name="287" href="#287">287</a>         NullWritable.<strong class="jxr_keyword">class</strong>,
-<a class="jxr_linenumber" name="288" href="#288">288</a>         job
-<a class="jxr_linenumber" name="289" href="#289">289</a>     );
-<a class="jxr_linenumber" name="290" href="#290">290</a> 
-<a class="jxr_linenumber" name="291" href="#291">291</a>     job.setNumReduceTasks(0);
-<a class="jxr_linenumber" name="292" href="#292">292</a>     job.setOutputKeyClass(NullWritable.<strong class="jxr_keyword">class</strong>);
-<a class="jxr_linenumber" name="293" href="#293">293</a>     job.setOutputValueClass(NullWritable.<strong class="jxr_keyword">class</strong>);
-<a class="jxr_linenumber" name="294" href="#294">294</a>     job.setOutputFormatClass(NullOutputFormat.<strong class="jxr_keyword">class</strong>);
-<a class="jxr_linenumber" name="295" href="#295">295</a> 
-<a class="jxr_linenumber" name="296" href="#296">296</a>     scanTimer.start();
-<a class="jxr_linenumber" name="297" href="#297">297</a>     job.waitForCompletion(<strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="298" href="#298">298</a>     scanTimer.stop();
-<a class="jxr_linenumber" name="299" href="#299">299</a> 
-<a class="jxr_linenumber" name="300" href="#300">300</a>     Counters counters = job.getCounters();
-<a class="jxr_linenumber" name="301" href="#301">301</a>     <strong class="jxr_keyword">long</strong> numRows = counters.findCounter(ScanCounter.NUM_ROWS).getValue();
-<a class="jxr_linenumber" name="302" href="#302">302</a>     <strong class="jxr_keyword">long</strong> numCells = counters.findCounter(ScanCounter.NUM_CELLS).getValue();
-<a class="jxr_linenumber" name="303" href="#303">303</a> 
-<a class="jxr_linenumber" name="304" href="#304">304</a>     <strong class="jxr_keyword">long</strong> totalBytes = counters.findCounter(HBASE_COUNTER_GROUP_NAME, <span class="jxr_string">"BYTES_IN_RESULTS"</span>).getValue();
-<a class="jxr_linenumber" name="305" href="#305">305</a>     <strong class="jxr_keyword">double</strong> throughput = (<strong class="jxr_keyword">double</strong>)totalBytes / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="306" href="#306">306</a>     <strong class="jxr_keyword">double</strong> throughputRows = (<strong class="jxr_keyword">double</strong>)numRows / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="307" href="#307">307</a>     <strong class="jxr_keyword">double</strong> throughputCells = (<strong class="jxr_keyword">double</strong>)numCells / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="308" href="#308">308</a> 
-<a class="jxr_linenumber" name="309" href="#309">309</a>     System.out.println(<span class="jxr_string">"HBase scan mapreduce: "</span>);
-<a class="jxr_linenumber" name="310" href="#310">310</a>     System.out.println(<span class="jxr_string">"total time to open scanner: "</span> + scanOpenTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="311" href="#311">311</a>     System.out.println(<span class="jxr_string">"total time to scan: "</span> + scanTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="312" href="#312">312</a> 
-<a class="jxr_linenumber" name="313" href="#313">313</a>     System.out.println(<span class="jxr_string">"total bytes: "</span> + totalBytes + <span class="jxr_string">" bytes ("</span>
-<a class="jxr_linenumber" name="314" href="#314">314</a>         + StringUtils.humanReadableInt(totalBytes) + <span class="jxr_string">")"</span>);
-<a class="jxr_linenumber" name="315" href="#315">315</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughput) + <span class="jxr_string">"B/s"</span>);
-<a class="jxr_linenumber" name="316" href="#316">316</a>     System.out.println(<span class="jxr_string">"total rows  : "</span> + numRows);
-<a class="jxr_linenumber" name="317" href="#317">317</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughputRows) + <span class="jxr_string">" rows/s"</span>);
-<a class="jxr_linenumber" name="318" href="#318">318</a>     System.out.println(<span class="jxr_string">"total cells : "</span> + numCells);
-<a class="jxr_linenumber" name="319" href="#319">319</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughputCells) + <span class="jxr_string">" cells/s"</span>);
-<a class="jxr_linenumber" name="320" href="#320">320</a>   }
-<a class="jxr_linenumber" name="321" href="#321">321</a> 
-<a class="jxr_linenumber" name="322" href="#322">322</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testSnapshotScanMapReduce() <strong class="jxr_keyword">throws</strong> IOException, InterruptedException, ClassNotFoundException {
-<a class="jxr_linenumber" name="323" href="#323">323</a>     Stopwatch scanOpenTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="324" href="#324">324</a>     Stopwatch scanTimer = <strong class="jxr_keyword">new</strong> Stopwatch();
-<a class="jxr_linenumber" name="325" href="#325">325</a> 
-<a class="jxr_linenumber" name="326" href="#326">326</a>     Scan scan = getScan();
-<a class="jxr_linenumber" name="327" href="#327">327</a> 
-<a class="jxr_linenumber" name="328" href="#328">328</a>     String jobName = <span class="jxr_string">"testSnapshotScanMapReduce"</span>;
-<a class="jxr_linenumber" name="329" href="#329">329</a> 
-<a class="jxr_linenumber" name="330" href="#330">330</a>     Job job = <strong class="jxr_keyword">new</strong> Job(conf);
-<a class="jxr_linenumber" name="331" href="#331">331</a>     job.setJobName(jobName);
-<a class="jxr_linenumber" name="332" href="#332">332</a> 
-<a class="jxr_linenumber" name="333" href="#333">333</a>     job.setJarByClass(getClass());
-<a class="jxr_linenumber" name="334" href="#334">334</a> 
-<a class="jxr_linenumber" name="335" href="#335">335</a>     TableMapReduceUtil.initTableSnapshotMapperJob(
-<a class="jxr_linenumber" name="336" href="#336">336</a>         <strong class="jxr_keyword">this</strong>.snapshotName,
-<a class="jxr_linenumber" name="337" href="#337">337</a>         scan,
-<a class="jxr_linenumber" name="338" href="#338">338</a>         MyMapper.<strong class="jxr_keyword">class</strong>,
-<a class="jxr_linenumber" name="339" href="#339">339</a>         NullWritable.<strong class="jxr_keyword">class</strong>,
-<a class="jxr_linenumber" name="340" href="#340">340</a>         NullWritable.<strong class="jxr_keyword">class</strong>,
-<a class="jxr_linenumber" name="341" href="#341">341</a>         job,
-<a class="jxr_linenumber" name="342" href="#342">342</a>         <strong class="jxr_keyword">true</strong>,
-<a class="jxr_linenumber" name="343" href="#343">343</a>         <strong class="jxr_keyword">new</strong> Path(restoreDir)
-<a class="jxr_linenumber" name="344" href="#344">344</a>     );
-<a class="jxr_linenumber" name="345" href="#345">345</a> 
-<a class="jxr_linenumber" name="346" href="#346">346</a>     job.setNumReduceTasks(0);
-<a class="jxr_linenumber" name="347" href="#347">347</a>     job.setOutputKeyClass(NullWritable.<strong class="jxr_keyword">class</strong>);
-<a class="jxr_linenumber" name="348" href="#348">348</a>     job.setOutputValueClass(NullWritable.<strong class="jxr_keyword">class</strong>);
-<a class="jxr_linenumber" name="349" href="#349">349</a>     job.setOutputFormatClass(NullOutputFormat.<strong class="jxr_keyword">class</strong>);
-<a class="jxr_linenumber" name="350" href="#350">350</a> 
-<a class="jxr_linenumber" name="351" href="#351">351</a>     scanTimer.start();
-<a class="jxr_linenumber" name="352" href="#352">352</a>     job.waitForCompletion(<strong class="jxr_keyword">true</strong>);
-<a class="jxr_linenumber" name="353" href="#353">353</a>     scanTimer.stop();
-<a class="jxr_linenumber" name="354" href="#354">354</a> 
-<a class="jxr_linenumber" name="355" href="#355">355</a>     Counters counters = job.getCounters();
-<a class="jxr_linenumber" name="356" href="#356">356</a>     <strong class="jxr_keyword">long</strong> numRows = counters.findCounter(ScanCounter.NUM_ROWS).getValue();
-<a class="jxr_linenumber" name="357" href="#357">357</a>     <strong class="jxr_keyword">long</strong> numCells = counters.findCounter(ScanCounter.NUM_CELLS).getValue();
-<a class="jxr_linenumber" name="358" href="#358">358</a> 
-<a class="jxr_linenumber" name="359" href="#359">359</a>     <strong class="jxr_keyword">long</strong> totalBytes = counters.findCounter(HBASE_COUNTER_GROUP_NAME, <span class="jxr_string">"BYTES_IN_RESULTS"</span>).getValue();
-<a class="jxr_linenumber" name="360" href="#360">360</a>     <strong class="jxr_keyword">double</strong> throughput = (<strong class="jxr_keyword">double</strong>)totalBytes / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="361" href="#361">361</a>     <strong class="jxr_keyword">double</strong> throughputRows = (<strong class="jxr_keyword">double</strong>)numRows / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="362" href="#362">362</a>     <strong class="jxr_keyword">double</strong> throughputCells = (<strong class="jxr_keyword">double</strong>)numCells / scanTimer.elapsedTime(TimeUnit.SECONDS);
-<a class="jxr_linenumber" name="363" href="#363">363</a> 
-<a class="jxr_linenumber" name="364" href="#364">364</a>     System.out.println(<span class="jxr_string">"HBase scan mapreduce: "</span>);
-<a class="jxr_linenumber" name="365" href="#365">365</a>     System.out.println(<span class="jxr_string">"total time to open scanner: "</span> + scanOpenTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="366" href="#366">366</a>     System.out.println(<span class="jxr_string">"total time to scan: "</span> + scanTimer.elapsedMillis() + <span class="jxr_string">" ms"</span>);
-<a class="jxr_linenumber" name="367" href="#367">367</a> 
-<a class="jxr_linenumber" name="368" href="#368">368</a>     System.out.println(<span class="jxr_string">"total bytes: "</span> + totalBytes + <span class="jxr_string">" bytes ("</span>
-<a class="jxr_linenumber" name="369" href="#369">369</a>         + StringUtils.humanReadableInt(totalBytes) + <span class="jxr_string">")"</span>);
-<a class="jxr_linenumber" name="370" href="#370">370</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughput) + <span class="jxr_string">"B/s"</span>);
-<a class="jxr_linenumber" name="371" href="#371">371</a>     System.out.println(<span class="jxr_string">"total rows  : "</span> + numRows);
-<a class="jxr_linenumber" name="372" href="#372">372</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughputRows) + <span class="jxr_string">" rows/s"</span>);
-<a class="jxr_linenumber" name="373" href="#373">373</a>     System.out.println(<span class="jxr_string">"total cells : "</span> + numCells);
-<a class="jxr_linenumber" name="374" href="#374">374</a>     System.out.println(<span class="jxr_string">"throughput  : "</span> + StringUtils.humanReadableInt((<strong class="jxr_keyword">long</strong>)throughputCells) + <span class="jxr_string">" cells/s"</span>);
-<a class="jxr_linenumber" name="375" href="#375">375</a>   }
-<a class="jxr_linenumber" name="376" href="#376">376</a> 
-<a class="jxr_linenumber" name="377" href="#377">377</a>   @Override
-<a class="jxr_linenumber" name="378" href="#378">378</a>   <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">int</strong> doWork() <strong class="jxr_keyword">throws</strong> Exception {
-<a class="jxr_linenumber" name="379" href="#379">379</a>     <strong class="jxr_keyword">if</strong> (type.equals(<span class="jxr_string">"streaming"</span>)) {
-<a class="jxr_linenumber" name="380" href="#380">380</a>       testHdfsStreaming(<strong class="jxr_keyword">new</strong> Path(file));
-<a class="jxr_linenumber" name="381" href="#381">381</a>     } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (type.equals(<span class="jxr_string">"scan"</span>)){
-<a class="jxr_linenumber" name="382" href="#382">382</a>       testScan();
-<a class="jxr_linenumber" name="383" href="#383">383</a>     } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (type.equals(<span class="jxr_string">"snapshotscan"</span>)) {
-<a class="jxr_linenumber" name="384" href="#384">384</a>       testSnapshotScan();
-<a class="jxr_linenumber" name="385" href="#385">385</a>     } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (type.equals(<span class="jxr_string">"scanmapreduce"</span>)) {
-<a class="jxr_linenumber" name="386" href="#386">386</a>       testScanMapReduce();
-<a class="jxr_linenumber" name="387" href="#387">387</a>     } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (type.equals(<span class="jxr_string">"snapshotscanmapreduce"</span>)) {
-<a class="jxr_linenumber" name="388" href="#388">388</a>       testSnapshotScanMapReduce();
-<a class="jxr_linenumber" name="389" href="#389">389</a>     }
-<a class="jxr_linenumber" name="390" href="#390">390</a>     <strong class="jxr_keyword">return</strong> 0;
-<a class="jxr_linenumber" name="391" href="#391">391</a>   }
-<a class="jxr_linenumber" name="392" href="#392">392</a> 
-<a class="jxr_linenumber" name="393" href="#393">393</a>   <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> main (String[] args) <strong class="jxr_keyword">throws</strong> Exception {
-<a class="jxr_linenumber" name="394" href="#394">394</a>     <strong class="jxr_keyword">int</strong> ret = ToolRunner.run(HBaseConfiguration.create(), <strong class="jxr_keyword">new</strong> ScanPerformanceEvaluation(), args);
-<a class="jxr_linenumber" name="395" href="#395">395</a>     System.exit(ret);
-<a class="jxr_linenumber" name="396" href="#396">396</a>   }
-<a class="jxr_linenumber" name="397" href="#397">397</a> }
-</pre>
-<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/7b604147/xref-test/org/apache/hadoop/hbase/ServerResourceCheckerJUnitListener.html
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-
-<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
-<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> *</em>
-<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
-<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * or more contributor license agreements.  See the NOTICE file</em>
-<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> * distributed with this work for additional information</em>
-<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * regarding copyright ownership.  The ASF licenses this file</em>
-<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em>
-<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em>
-<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> * with the License.  You may obtain a copy of the License at</em>
-<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> *</em>
-<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> *     <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
-<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> *</em>
-<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
-<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
-<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
-<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
-<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_comment"> * limitations under the License.</em>
-<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_comment"> */</em>
-<a class="jxr_linenumber" name="19" href="#19">19</a>  
-<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">package</strong> org.apache.hadoop.hbase;
-<a class="jxr_linenumber" name="21" href="#21">21</a>  
-<a class="jxr_linenumber" name="22" href="#22">22</a>  <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="23" href="#23">23</a>  <em class="jxr_javadoccomment"> * Monitor the resources. use by the tests All resources in {@link ResourceCheckerJUnitListener}</em>
-<a class="jxr_linenumber" name="24" href="#24">24</a>  <em class="jxr_javadoccomment"> *  plus the number of connection.</em>
-<a class="jxr_linenumber" name="25" href="#25">25</a>  <em class="jxr_javadoccomment"> */</em>
-<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/hadoop/hbase/ServerResourceCheckerJUnitListener.html">ServerResourceCheckerJUnitListener</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../org/apache/hadoop/hbase/ResourceCheckerJUnitListener.html">ResourceCheckerJUnitListener</a> {
-<a class="jxr_linenumber" name="27" href="#27">27</a>  }
-</pre>
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