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 | <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> | 
 | <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> | 
 | <span class="sourceLineNo">003</span> * or more contributor license agreements.  See the NOTICE file<a name="line.3"></a> | 
 | <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> | 
 | <span class="sourceLineNo">005</span> * regarding copyright ownership.  The ASF licenses this file<a name="line.5"></a> | 
 | <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> | 
 | <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> | 
 | <span class="sourceLineNo">008</span> * with the License.  You may obtain a copy of the License at<a name="line.8"></a> | 
 | <span class="sourceLineNo">009</span> *<a name="line.9"></a> | 
 | <span class="sourceLineNo">010</span> *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> | 
 | <span class="sourceLineNo">011</span> *<a name="line.11"></a> | 
 | <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> | 
 | <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> | 
 | <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> | 
 | <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> | 
 | <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> | 
 | <span class="sourceLineNo">017</span> */<a name="line.17"></a> | 
 | <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.client;<a name="line.18"></a> | 
 | <span class="sourceLineNo">019</span><a name="line.19"></a> | 
 | <span class="sourceLineNo">020</span>import static org.junit.Assert.assertArrayEquals;<a name="line.20"></a> | 
 | <span class="sourceLineNo">021</span><a name="line.21"></a> | 
 | <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> | 
 | <span class="sourceLineNo">023</span>import java.util.Optional;<a name="line.23"></a> | 
 | <span class="sourceLineNo">024</span>import java.util.concurrent.ExecutionException;<a name="line.24"></a> | 
 | <span class="sourceLineNo">025</span>import java.util.concurrent.TimeUnit;<a name="line.25"></a> | 
 | <span class="sourceLineNo">026</span>import org.apache.hadoop.conf.Configuration;<a name="line.26"></a> | 
 | <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.27"></a> | 
 | <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.28"></a> | 
 | <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HConstants;<a name="line.29"></a> | 
 | <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.TableName;<a name="line.30"></a> | 
 | <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;<a name="line.31"></a> | 
 | <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.coprocessor.ObserverContext;<a name="line.32"></a> | 
 | <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;<a name="line.33"></a> | 
 | <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;<a name="line.34"></a> | 
 | <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.coprocessor.RegionObserver;<a name="line.35"></a> | 
 | <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.regionserver.StorefileRefresherChore;<a name="line.36"></a> | 
 | <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.testclassification.ClientTests;<a name="line.37"></a> | 
 | <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.38"></a> | 
 | <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.39"></a> | 
 | <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.FutureUtils;<a name="line.40"></a> | 
 | <span class="sourceLineNo">041</span>import org.junit.After;<a name="line.41"></a> | 
 | <span class="sourceLineNo">042</span>import org.junit.AfterClass;<a name="line.42"></a> | 
 | <span class="sourceLineNo">043</span>import org.junit.BeforeClass;<a name="line.43"></a> | 
 | <span class="sourceLineNo">044</span>import org.junit.ClassRule;<a name="line.44"></a> | 
 | <span class="sourceLineNo">045</span>import org.junit.Test;<a name="line.45"></a> | 
 | <span class="sourceLineNo">046</span>import org.junit.experimental.categories.Category;<a name="line.46"></a> | 
 | <span class="sourceLineNo">047</span><a name="line.47"></a> | 
 | <span class="sourceLineNo">048</span>@Category({ ClientTests.class, MediumTests.class })<a name="line.48"></a> | 
 | <span class="sourceLineNo">049</span>public class TestAsyncTableUseMetaReplicas {<a name="line.49"></a> | 
 | <span class="sourceLineNo">050</span><a name="line.50"></a> | 
 | <span class="sourceLineNo">051</span>  @ClassRule<a name="line.51"></a> | 
 | <span class="sourceLineNo">052</span>  public static final HBaseClassTestRule CLASS_RULE =<a name="line.52"></a> | 
 | <span class="sourceLineNo">053</span>    HBaseClassTestRule.forClass(TestAsyncTableUseMetaReplicas.class);<a name="line.53"></a> | 
 | <span class="sourceLineNo">054</span><a name="line.54"></a> | 
 | <span class="sourceLineNo">055</span>  private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();<a name="line.55"></a> | 
 | <span class="sourceLineNo">056</span><a name="line.56"></a> | 
 | <span class="sourceLineNo">057</span>  private static TableName TABLE_NAME = TableName.valueOf("Replica");<a name="line.57"></a> | 
 | <span class="sourceLineNo">058</span><a name="line.58"></a> | 
 | <span class="sourceLineNo">059</span>  private static byte[] FAMILY = Bytes.toBytes("Family");<a name="line.59"></a> | 
 | <span class="sourceLineNo">060</span><a name="line.60"></a> | 
 | <span class="sourceLineNo">061</span>  private static byte[] QUALIFIER = Bytes.toBytes("Qual");<a name="line.61"></a> | 
 | <span class="sourceLineNo">062</span><a name="line.62"></a> | 
 | <span class="sourceLineNo">063</span>  private static byte[] ROW = Bytes.toBytes("Row");<a name="line.63"></a> | 
 | <span class="sourceLineNo">064</span><a name="line.64"></a> | 
 | <span class="sourceLineNo">065</span>  private static byte[] VALUE = Bytes.toBytes("Value");<a name="line.65"></a> | 
 | <span class="sourceLineNo">066</span><a name="line.66"></a> | 
 | <span class="sourceLineNo">067</span>  private static volatile boolean FAIL_PRIMARY_SCAN = false;<a name="line.67"></a> | 
 | <span class="sourceLineNo">068</span><a name="line.68"></a> | 
 | <span class="sourceLineNo">069</span>  public static final class FailPrimaryMetaScanCp implements RegionObserver, RegionCoprocessor {<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>    public Optional<RegionObserver> getRegionObserver() {<a name="line.72"></a> | 
 | <span class="sourceLineNo">073</span>      return Optional.of(this);<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>    public void preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c, Scan scan)<a name="line.77"></a> | 
 | <span class="sourceLineNo">078</span>      throws IOException {<a name="line.78"></a> | 
 | <span class="sourceLineNo">079</span>      RegionInfo region = c.getEnvironment().getRegionInfo();<a name="line.79"></a> | 
 | <span class="sourceLineNo">080</span>      if (<a name="line.80"></a> | 
 | <span class="sourceLineNo">081</span>        FAIL_PRIMARY_SCAN && TableName.isMetaTableName(region.getTable())<a name="line.81"></a> | 
 | <span class="sourceLineNo">082</span>          && region.getReplicaId() == RegionReplicaUtil.DEFAULT_REPLICA_ID<a name="line.82"></a> | 
 | <span class="sourceLineNo">083</span>      ) {<a name="line.83"></a> | 
 | <span class="sourceLineNo">084</span>        throw new IOException("Inject error");<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>  }<a name="line.87"></a> | 
 | <span class="sourceLineNo">088</span><a name="line.88"></a> | 
 | <span class="sourceLineNo">089</span>  @BeforeClass<a name="line.89"></a> | 
 | <span class="sourceLineNo">090</span>  public static void setUp() throws Exception {<a name="line.90"></a> | 
 | <span class="sourceLineNo">091</span>    Configuration conf = UTIL.getConfiguration();<a name="line.91"></a> | 
 | <span class="sourceLineNo">092</span>    conf.setInt(StorefileRefresherChore.REGIONSERVER_STOREFILE_REFRESH_PERIOD, 1000);<a name="line.92"></a> | 
 | <span class="sourceLineNo">093</span>    conf.setStrings(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY,<a name="line.93"></a> | 
 | <span class="sourceLineNo">094</span>      FailPrimaryMetaScanCp.class.getName());<a name="line.94"></a> | 
 | <span class="sourceLineNo">095</span>    UTIL.startMiniCluster(3);<a name="line.95"></a> | 
 | <span class="sourceLineNo">096</span>    HBaseTestingUtil.setReplicas(UTIL.getAdmin(), TableName.META_TABLE_NAME, 3);<a name="line.96"></a> | 
 | <span class="sourceLineNo">097</span>    try (ConnectionRegistry registry = ConnectionRegistryFactory.getRegistry(conf)) {<a name="line.97"></a> | 
 | <span class="sourceLineNo">098</span>      RegionReplicaTestHelper.waitUntilAllMetaReplicasAreReady(UTIL, registry);<a name="line.98"></a> | 
 | <span class="sourceLineNo">099</span>    }<a name="line.99"></a> | 
 | <span class="sourceLineNo">100</span>    try (Table table = UTIL.createTable(TABLE_NAME, FAMILY)) {<a name="line.100"></a> | 
 | <span class="sourceLineNo">101</span>      table.put(new Put(ROW).addColumn(FAMILY, QUALIFIER, VALUE));<a name="line.101"></a> | 
 | <span class="sourceLineNo">102</span>    }<a name="line.102"></a> | 
 | <span class="sourceLineNo">103</span>    UTIL.flush(TableName.META_TABLE_NAME);<a name="line.103"></a> | 
 | <span class="sourceLineNo">104</span>    // wait for the store file refresh so we can read the region location from secondary meta<a name="line.104"></a> | 
 | <span class="sourceLineNo">105</span>    // replicas<a name="line.105"></a> | 
 | <span class="sourceLineNo">106</span>    Thread.sleep(2000);<a name="line.106"></a> | 
 | <span class="sourceLineNo">107</span>  }<a name="line.107"></a> | 
 | <span class="sourceLineNo">108</span><a name="line.108"></a> | 
 | <span class="sourceLineNo">109</span>  @AfterClass<a name="line.109"></a> | 
 | <span class="sourceLineNo">110</span>  public static void tearDown() throws Exception {<a name="line.110"></a> | 
 | <span class="sourceLineNo">111</span>    UTIL.shutdownMiniCluster();<a name="line.111"></a> | 
 | <span class="sourceLineNo">112</span>  }<a name="line.112"></a> | 
 | <span class="sourceLineNo">113</span><a name="line.113"></a> | 
 | <span class="sourceLineNo">114</span>  @After<a name="line.114"></a> | 
 | <span class="sourceLineNo">115</span>  public void tearDownAfterTest() {<a name="line.115"></a> | 
 | <span class="sourceLineNo">116</span>    // make sure we do not mess up cleanup code.<a name="line.116"></a> | 
 | <span class="sourceLineNo">117</span>    FAIL_PRIMARY_SCAN = false;<a name="line.117"></a> | 
 | <span class="sourceLineNo">118</span>  }<a name="line.118"></a> | 
 | <span class="sourceLineNo">119</span><a name="line.119"></a> | 
 | <span class="sourceLineNo">120</span>  private void testRead(boolean useMetaReplicas)<a name="line.120"></a> | 
 | <span class="sourceLineNo">121</span>    throws IOException, InterruptedException, ExecutionException {<a name="line.121"></a> | 
 | <span class="sourceLineNo">122</span>    FAIL_PRIMARY_SCAN = true;<a name="line.122"></a> | 
 | <span class="sourceLineNo">123</span>    Configuration conf = new Configuration(UTIL.getConfiguration());<a name="line.123"></a> | 
 | <span class="sourceLineNo">124</span>    conf.setBoolean(HConstants.USE_META_REPLICAS, useMetaReplicas);<a name="line.124"></a> | 
 | <span class="sourceLineNo">125</span>    conf.setLong(HConstants.HBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT, TimeUnit.SECONDS.toMicros(1));<a name="line.125"></a> | 
 | <span class="sourceLineNo">126</span>    try (AsyncConnection conn = ConnectionFactory.createAsyncConnection(conf).get()) {<a name="line.126"></a> | 
 | <span class="sourceLineNo">127</span>      Result result = FutureUtils.get(conn.getTableBuilder(TABLE_NAME)<a name="line.127"></a> | 
 | <span class="sourceLineNo">128</span>        .setOperationTimeout(3, TimeUnit.SECONDS).build().get(new Get(ROW)));<a name="line.128"></a> | 
 | <span class="sourceLineNo">129</span>      assertArrayEquals(VALUE, result.getValue(FAMILY, QUALIFIER));<a name="line.129"></a> | 
 | <span class="sourceLineNo">130</span>    }<a name="line.130"></a> | 
 | <span class="sourceLineNo">131</span>  }<a name="line.131"></a> | 
 | <span class="sourceLineNo">132</span><a name="line.132"></a> | 
 | <span class="sourceLineNo">133</span>  @Test(expected = RetriesExhaustedException.class)<a name="line.133"></a> | 
 | <span class="sourceLineNo">134</span>  public void testNotUseMetaReplicas()<a name="line.134"></a> | 
 | <span class="sourceLineNo">135</span>    throws IOException, InterruptedException, ExecutionException {<a name="line.135"></a> | 
 | <span class="sourceLineNo">136</span>    testRead(false);<a name="line.136"></a> | 
 | <span class="sourceLineNo">137</span>  }<a name="line.137"></a> | 
 | <span class="sourceLineNo">138</span><a name="line.138"></a> | 
 | <span class="sourceLineNo">139</span>  @Test<a name="line.139"></a> | 
 | <span class="sourceLineNo">140</span>  public void testUseMetaReplicas() throws IOException, InterruptedException, ExecutionException {<a name="line.140"></a> | 
 | <span class="sourceLineNo">141</span>    testRead(true);<a name="line.141"></a> | 
 | <span class="sourceLineNo">142</span>  }<a name="line.142"></a> | 
 | <span class="sourceLineNo">143</span>}<a name="line.143"></a> | 
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 | </pre> | 
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