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<div id="overview"><a href="../../../../../../testapidocs/org/apache/hadoop/hbase/client/TestRegionLocationCaching.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.client;
<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> <strong class="jxr_keyword">static</strong> org.junit.Assert.assertNotEquals;
<a class="jxr_linenumber" name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.junit.Assert.assertNull;
<a class="jxr_linenumber" name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> <strong class="jxr_keyword">static</strong> org.junit.Assert.assertTrue;
<a class="jxr_linenumber" name="24" href="#24">24</a>
<a class="jxr_linenumber" name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a class="jxr_linenumber" name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> java.util.List;
<a class="jxr_linenumber" name="28" href="#28">28</a>
<a class="jxr_linenumber" name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.HBaseTestingUtility;
<a class="jxr_linenumber" name="30" href="#30">30</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.TableName;
<a class="jxr_linenumber" name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.client.ConnectionManager.HConnectionImplementation;
<a class="jxr_linenumber" name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.testclassification.ClientTests;
<a class="jxr_linenumber" name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.testclassification.MediumTests;
<a class="jxr_linenumber" name="34" href="#34">34</a> <strong class="jxr_keyword">import</strong> org.apache.hadoop.hbase.util.Bytes;
<a class="jxr_linenumber" name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> org.junit.AfterClass;
<a class="jxr_linenumber" name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> org.junit.BeforeClass;
<a class="jxr_linenumber" name="37" href="#37">37</a> <strong class="jxr_keyword">import</strong> org.junit.Test;
<a class="jxr_linenumber" name="38" href="#38">38</a> <strong class="jxr_keyword">import</strong> org.junit.experimental.categories.Category;
<a class="jxr_linenumber" name="39" href="#39">39</a>
<a class="jxr_linenumber" name="40" href="#40">40</a> @Category({MediumTests.<strong class="jxr_keyword">class</strong>, ClientTests.<strong class="jxr_keyword">class</strong>})
<a class="jxr_linenumber" name="41" href="#41">41</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../org/apache/hadoop/hbase/client/TestRegionLocationCaching.html">TestRegionLocationCaching</a> {
<a class="jxr_linenumber" name="42" href="#42">42</a>
<a class="jxr_linenumber" name="43" href="#43">43</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../../org/apache/hadoop/hbase/HBaseTestingUtility.html">HBaseTestingUtility</a> TEST_UTIL = <strong class="jxr_keyword">new</strong> <a href="../../../../../org/apache/hadoop/hbase/HBaseTestingUtility.html">HBaseTestingUtility</a>();
<a class="jxr_linenumber" name="44" href="#44">44</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> SLAVES = 1;
<a class="jxr_linenumber" name="45" href="#45">45</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> PER_REGIONSERVER_QUEUE_SIZE = 100000;
<a class="jxr_linenumber" name="46" href="#46">46</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> TableName TABLE_NAME = TableName.valueOf(<span class="jxr_string">"TestRegionLocationCaching"</span>);
<a class="jxr_linenumber" name="47" href="#47">47</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] FAMILY = Bytes.toBytes(<span class="jxr_string">"testFamily"</span>);
<a class="jxr_linenumber" name="48" href="#48">48</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] QUALIFIER = Bytes.toBytes(<span class="jxr_string">"testQualifier"</span>);
<a class="jxr_linenumber" name="49" href="#49">49</a>
<a class="jxr_linenumber" name="50" href="#50">50</a> @BeforeClass
<a class="jxr_linenumber" name="51" href="#51">51</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> setUpBeforeClass() <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="52" href="#52">52</a> TEST_UTIL.startMiniCluster(SLAVES);
<a class="jxr_linenumber" name="53" href="#53">53</a> TEST_UTIL.createTable(TABLE_NAME, <strong class="jxr_keyword">new</strong> byte[][] { FAMILY });
<a class="jxr_linenumber" name="54" href="#54">54</a> TEST_UTIL.waitUntilAllRegionsAssigned(TABLE_NAME);
<a class="jxr_linenumber" name="55" href="#55">55</a> }
<a class="jxr_linenumber" name="56" href="#56">56</a>
<a class="jxr_linenumber" name="57" href="#57">57</a> @AfterClass
<a class="jxr_linenumber" name="58" href="#58">58</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> tearDownAfterClass() <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="59" href="#59">59</a> TEST_UTIL.shutdownMiniCluster();
<a class="jxr_linenumber" name="60" href="#60">60</a> }
<a class="jxr_linenumber" name="61" href="#61">61</a>
<a class="jxr_linenumber" name="62" href="#62">62</a> @Test
<a class="jxr_linenumber" name="63" href="#63">63</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testCachingForHTableMultiplexerSinglePut() <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="64" href="#64">64</a> HTableMultiplexer multiplexer =
<a class="jxr_linenumber" name="65" href="#65">65</a> <strong class="jxr_keyword">new</strong> HTableMultiplexer(TEST_UTIL.getConfiguration(), PER_REGIONSERVER_QUEUE_SIZE);
<a class="jxr_linenumber" name="66" href="#66">66</a> byte[] row = Bytes.toBytes(<span class="jxr_string">"htable_multiplexer_single_put"</span>);
<a class="jxr_linenumber" name="67" href="#67">67</a> byte[] value = Bytes.toBytes(<span class="jxr_string">"value"</span>);
<a class="jxr_linenumber" name="68" href="#68">68</a>
<a class="jxr_linenumber" name="69" href="#69">69</a> Put put = <strong class="jxr_keyword">new</strong> Put(row);
<a class="jxr_linenumber" name="70" href="#70">70</a> put.addColumn(FAMILY, QUALIFIER, value);
<a class="jxr_linenumber" name="71" href="#71">71</a> assertTrue(<span class="jxr_string">"Put request not accepted by multiplexer queue"</span>, multiplexer.put(TABLE_NAME, put));
<a class="jxr_linenumber" name="72" href="#72">72</a>
<a class="jxr_linenumber" name="73" href="#73">73</a> checkRegionLocationIsCached(TABLE_NAME, multiplexer.getConnection());
<a class="jxr_linenumber" name="74" href="#74">74</a> checkExistence(TABLE_NAME, row, FAMILY, QUALIFIER);
<a class="jxr_linenumber" name="75" href="#75">75</a>
<a class="jxr_linenumber" name="76" href="#76">76</a> multiplexer.close();
<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> @Test
<a class="jxr_linenumber" name="80" href="#80">80</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testCachingForHTableMultiplexerMultiPut() <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="81" href="#81">81</a> HTableMultiplexer multiplexer =
<a class="jxr_linenumber" name="82" href="#82">82</a> <strong class="jxr_keyword">new</strong> HTableMultiplexer(TEST_UTIL.getConfiguration(), PER_REGIONSERVER_QUEUE_SIZE);
<a class="jxr_linenumber" name="83" href="#83">83</a>
<a class="jxr_linenumber" name="84" href="#84">84</a> List&lt;Put&gt; multiput = <strong class="jxr_keyword">new</strong> ArrayList&lt;Put&gt;();
<a class="jxr_linenumber" name="85" href="#85">85</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; 10; i++) {
<a class="jxr_linenumber" name="86" href="#86">86</a> Put put = <strong class="jxr_keyword">new</strong> Put(Bytes.toBytes(<span class="jxr_string">"htable_multiplexer_multi_put"</span> + i));
<a class="jxr_linenumber" name="87" href="#87">87</a> byte[] value = Bytes.toBytes(<span class="jxr_string">"value_"</span> + i);
<a class="jxr_linenumber" name="88" href="#88">88</a> put.addColumn(FAMILY, QUALIFIER, value);
<a class="jxr_linenumber" name="89" href="#89">89</a> multiput.add(put);
<a class="jxr_linenumber" name="90" href="#90">90</a> }
<a class="jxr_linenumber" name="91" href="#91">91</a>
<a class="jxr_linenumber" name="92" href="#92">92</a> List&lt;Put&gt; failedPuts = multiplexer.put(TABLE_NAME, multiput);
<a class="jxr_linenumber" name="93" href="#93">93</a> assertNull(<span class="jxr_string">"All put requests were not accepted by multiplexer queue"</span>, failedPuts);
<a class="jxr_linenumber" name="94" href="#94">94</a>
<a class="jxr_linenumber" name="95" href="#95">95</a> checkRegionLocationIsCached(TABLE_NAME, multiplexer.getConnection());
<a class="jxr_linenumber" name="96" href="#96">96</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; 10; i++) {
<a class="jxr_linenumber" name="97" href="#97">97</a> checkExistence(TABLE_NAME, Bytes.toBytes(<span class="jxr_string">"htable_multiplexer_multi_put"</span> + i), FAMILY,
<a class="jxr_linenumber" name="98" href="#98">98</a> QUALIFIER);
<a class="jxr_linenumber" name="99" href="#99">99</a> }
<a class="jxr_linenumber" name="100" href="#100">100</a>
<a class="jxr_linenumber" name="101" href="#101">101</a> multiplexer.close();
<a class="jxr_linenumber" name="102" href="#102">102</a> }
<a class="jxr_linenumber" name="103" href="#103">103</a>
<a class="jxr_linenumber" name="104" href="#104">104</a> @Test
<a class="jxr_linenumber" name="105" href="#105">105</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testCachingForHTableSinglePut() <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="106" href="#106">106</a> byte[] row = Bytes.toBytes(<span class="jxr_string">"htable_single_put"</span>);
<a class="jxr_linenumber" name="107" href="#107">107</a> byte[] value = Bytes.toBytes(<span class="jxr_string">"value"</span>);
<a class="jxr_linenumber" name="108" href="#108">108</a>
<a class="jxr_linenumber" name="109" href="#109">109</a> Put put = <strong class="jxr_keyword">new</strong> Put(row);
<a class="jxr_linenumber" name="110" href="#110">110</a> put.addColumn(FAMILY, QUALIFIER, value);
<a class="jxr_linenumber" name="111" href="#111">111</a>
<a class="jxr_linenumber" name="112" href="#112">112</a> <strong class="jxr_keyword">try</strong> (Table table = TEST_UTIL.getConnection().getTable(TABLE_NAME)) {
<a class="jxr_linenumber" name="113" href="#113">113</a> table.put(put);
<a class="jxr_linenumber" name="114" href="#114">114</a> }
<a class="jxr_linenumber" name="115" href="#115">115</a>
<a class="jxr_linenumber" name="116" href="#116">116</a> checkRegionLocationIsCached(TABLE_NAME, TEST_UTIL.getConnection());
<a class="jxr_linenumber" name="117" href="#117">117</a> checkExistence(TABLE_NAME, row, FAMILY, QUALIFIER);
<a class="jxr_linenumber" name="118" href="#118">118</a> }
<a class="jxr_linenumber" name="119" href="#119">119</a>
<a class="jxr_linenumber" name="120" href="#120">120</a> @Test
<a class="jxr_linenumber" name="121" href="#121">121</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> testCachingForHTableMultiPut() <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="122" href="#122">122</a> List&lt;Put&gt; multiput = <strong class="jxr_keyword">new</strong> ArrayList&lt;Put&gt;();
<a class="jxr_linenumber" name="123" href="#123">123</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; 10; i++) {
<a class="jxr_linenumber" name="124" href="#124">124</a> Put put = <strong class="jxr_keyword">new</strong> Put(Bytes.toBytes(<span class="jxr_string">"htable_multi_put"</span> + i));
<a class="jxr_linenumber" name="125" href="#125">125</a> byte[] value = Bytes.toBytes(<span class="jxr_string">"value_"</span> + i);
<a class="jxr_linenumber" name="126" href="#126">126</a> put.addColumn(FAMILY, QUALIFIER, value);
<a class="jxr_linenumber" name="127" href="#127">127</a> multiput.add(put);
<a class="jxr_linenumber" name="128" href="#128">128</a> }
<a class="jxr_linenumber" name="129" href="#129">129</a>
<a class="jxr_linenumber" name="130" href="#130">130</a> <strong class="jxr_keyword">try</strong> (Table table = TEST_UTIL.getConnection().getTable(TABLE_NAME)) {
<a class="jxr_linenumber" name="131" href="#131">131</a> table.put(multiput);
<a class="jxr_linenumber" name="132" href="#132">132</a> }
<a class="jxr_linenumber" name="133" href="#133">133</a> checkRegionLocationIsCached(TABLE_NAME, TEST_UTIL.getConnection());
<a class="jxr_linenumber" name="134" href="#134">134</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; 10; i++) {
<a class="jxr_linenumber" name="135" href="#135">135</a> checkExistence(TABLE_NAME, Bytes.toBytes(<span class="jxr_string">"htable_multi_put"</span> + i), FAMILY, QUALIFIER);
<a class="jxr_linenumber" name="136" href="#136">136</a> }
<a class="jxr_linenumber" name="137" href="#137">137</a> }
<a class="jxr_linenumber" name="138" href="#138">138</a>
<a class="jxr_linenumber" name="139" href="#139">139</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="140" href="#140">140</a> <em class="jxr_javadoccomment"> * Method to check whether the cached region location is non-empty for the given table. It repeats</em>
<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment"> * the same check several times as clearing of cache by some async operations may not reflect</em>
<a class="jxr_linenumber" name="142" href="#142">142</a> <em class="jxr_javadoccomment"> * immediately.</em>
<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="144" href="#144">144</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> checkRegionLocationIsCached(<strong class="jxr_keyword">final</strong> TableName tableName, <strong class="jxr_keyword">final</strong> Connection conn)
<a class="jxr_linenumber" name="145" href="#145">145</a> <strong class="jxr_keyword">throws</strong> InterruptedException, IOException {
<a class="jxr_linenumber" name="146" href="#146">146</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> count = 0; count &lt; 50; count++) {
<a class="jxr_linenumber" name="147" href="#147">147</a> <strong class="jxr_keyword">int</strong> number = ((HConnectionImplementation) conn).getNumberOfCachedRegionLocations(tableName);
<a class="jxr_linenumber" name="148" href="#148">148</a> assertNotEquals(<span class="jxr_string">"Expected non-zero number of cached region locations"</span>, 0, number);
<a class="jxr_linenumber" name="149" href="#149">149</a> Thread.sleep(100);
<a class="jxr_linenumber" name="150" href="#150">150</a> }
<a class="jxr_linenumber" name="151" href="#151">151</a> }
<a class="jxr_linenumber" name="152" href="#152">152</a>
<a class="jxr_linenumber" name="153" href="#153">153</a> <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="154" href="#154">154</a> <em class="jxr_javadoccomment"> * Method to check whether the passed row exists in the given table</em>
<a class="jxr_linenumber" name="155" href="#155">155</a> <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="156" href="#156">156</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> checkExistence(<strong class="jxr_keyword">final</strong> TableName tableName, <strong class="jxr_keyword">final</strong> byte[] row,
<a class="jxr_linenumber" name="157" href="#157">157</a> <strong class="jxr_keyword">final</strong> byte[] family, <strong class="jxr_keyword">final</strong> byte[] qualifier) <strong class="jxr_keyword">throws</strong> Exception {
<a class="jxr_linenumber" name="158" href="#158">158</a> <em class="jxr_comment">// verify that the row exists</em>
<a class="jxr_linenumber" name="159" href="#159">159</a> Result r;
<a class="jxr_linenumber" name="160" href="#160">160</a> Get get = <strong class="jxr_keyword">new</strong> Get(row);
<a class="jxr_linenumber" name="161" href="#161">161</a> get.addColumn(family, qualifier);
<a class="jxr_linenumber" name="162" href="#162">162</a> <strong class="jxr_keyword">int</strong> nbTry = 0;
<a class="jxr_linenumber" name="163" href="#163">163</a> <strong class="jxr_keyword">try</strong> (Table table = TEST_UTIL.getConnection().getTable(tableName)) {
<a class="jxr_linenumber" name="164" href="#164">164</a> <strong class="jxr_keyword">do</strong> {
<a class="jxr_linenumber" name="165" href="#165">165</a> assertTrue(<span class="jxr_string">"Failed to get row after "</span> + nbTry + <span class="jxr_string">" tries"</span>, nbTry &lt; 50);
<a class="jxr_linenumber" name="166" href="#166">166</a> nbTry++;
<a class="jxr_linenumber" name="167" href="#167">167</a> Thread.sleep(100);
<a class="jxr_linenumber" name="168" href="#168">168</a> r = table.get(get);
<a class="jxr_linenumber" name="169" href="#169">169</a> } <strong class="jxr_keyword">while</strong> (r == <strong class="jxr_keyword">null</strong> || r.getValue(family, qualifier) == <strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="170" href="#170">170</a> }
<a class="jxr_linenumber" name="171" href="#171">171</a> }
<a class="jxr_linenumber" name="172" href="#172">172</a> }
</pre>
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