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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.client;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.List;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.Optional;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.concurrent.atomic.AtomicLong;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.Cell;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.HBaseClassTestRule;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.HBaseTestingUtil;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.coprocessor.ObserverContext;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.coprocessor.RegionObserver;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.testclassification.MediumTests;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.util.Threads;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.junit.AfterClass;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.junit.BeforeClass;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.junit.ClassRule;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.junit.Rule;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.junit.Test;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.junit.rules.TestName;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.slf4j.Logger;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46">/**</span> |
| <span class="source-line-no">047</span><span id="line-47"> * Test a drop timeout request. This test used to be in TestHCM but it has particulare requirements</span> |
| <span class="source-line-no">048</span><span id="line-48"> * -- i.e. one handler only -- so run it apart from the rest of TestHCM.</span> |
| <span class="source-line-no">049</span><span id="line-49"> */</span> |
| <span class="source-line-no">050</span><span id="line-50">@Category({ MediumTests.class })</span> |
| <span class="source-line-no">051</span><span id="line-51">public class TestDropTimeoutRequest {</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> @ClassRule</span> |
| <span class="source-line-no">054</span><span id="line-54"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">055</span><span id="line-55"> HBaseClassTestRule.forClass(TestDropTimeoutRequest.class);</span> |
| <span class="source-line-no">056</span><span id="line-56"></span> |
| <span class="source-line-no">057</span><span id="line-57"> @Rule</span> |
| <span class="source-line-no">058</span><span id="line-58"> public TestName name = new TestName();</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> private static final Logger LOG = LoggerFactory.getLogger(TestDropTimeoutRequest.class);</span> |
| <span class="source-line-no">061</span><span id="line-61"> private final static HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();</span> |
| <span class="source-line-no">062</span><span id="line-62"> private static final byte[] FAM_NAM = Bytes.toBytes("f");</span> |
| <span class="source-line-no">063</span><span id="line-63"> private static final int RPC_RETRY = 5;</span> |
| <span class="source-line-no">064</span><span id="line-64"></span> |
| <span class="source-line-no">065</span><span id="line-65"> /**</span> |
| <span class="source-line-no">066</span><span id="line-66"> * Coprocessor that sleeps a while the first time you do a Get</span> |
| <span class="source-line-no">067</span><span id="line-67"> */</span> |
| <span class="source-line-no">068</span><span id="line-68"> public static class SleepLongerAtFirstCoprocessor implements RegionCoprocessor, RegionObserver {</span> |
| <span class="source-line-no">069</span><span id="line-69"> public static final int SLEEP_TIME = 2000;</span> |
| <span class="source-line-no">070</span><span id="line-70"> static final AtomicLong ct = new AtomicLong(0);</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> @Override</span> |
| <span class="source-line-no">073</span><span id="line-73"> public Optional<RegionObserver> getRegionObserver() {</span> |
| <span class="source-line-no">074</span><span id="line-74"> return Optional.of(this);</span> |
| <span class="source-line-no">075</span><span id="line-75"> }</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> @Override</span> |
| <span class="source-line-no">078</span><span id="line-78"> public void preGetOp(final ObserverContext<RegionCoprocessorEnvironment> e, final Get get,</span> |
| <span class="source-line-no">079</span><span id="line-79"> final List<Cell> results) throws IOException {</span> |
| <span class="source-line-no">080</span><span id="line-80"> // After first sleep, all requests are timeout except the last retry. If we handle</span> |
| <span class="source-line-no">081</span><span id="line-81"> // all the following requests, finally the last request is also timeout. If we drop all</span> |
| <span class="source-line-no">082</span><span id="line-82"> // timeout requests, we can handle the last request immediately and it will not timeout.</span> |
| <span class="source-line-no">083</span><span id="line-83"> if (ct.incrementAndGet() <= 1) {</span> |
| <span class="source-line-no">084</span><span id="line-84"> Threads.sleep(SLEEP_TIME * RPC_RETRY * 2);</span> |
| <span class="source-line-no">085</span><span id="line-85"> } else {</span> |
| <span class="source-line-no">086</span><span id="line-86"> Threads.sleep(SLEEP_TIME);</span> |
| <span class="source-line-no">087</span><span id="line-87"> }</span> |
| <span class="source-line-no">088</span><span id="line-88"> }</span> |
| <span class="source-line-no">089</span><span id="line-89"> }</span> |
| <span class="source-line-no">090</span><span id="line-90"></span> |
| <span class="source-line-no">091</span><span id="line-91"> @BeforeClass</span> |
| <span class="source-line-no">092</span><span id="line-92"> public static void setUpBeforeClass() throws Exception {</span> |
| <span class="source-line-no">093</span><span id="line-93"> TEST_UTIL.getConfiguration().setBoolean(HConstants.STATUS_PUBLISHED, true);</span> |
| <span class="source-line-no">094</span><span id="line-94"> // Up the handlers; this test needs more than usual.</span> |
| <span class="source-line-no">095</span><span id="line-95"> TEST_UTIL.getConfiguration().setInt(HConstants.REGION_SERVER_HIGH_PRIORITY_HANDLER_COUNT, 10);</span> |
| <span class="source-line-no">096</span><span id="line-96"> TEST_UTIL.getConfiguration().setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, RPC_RETRY);</span> |
| <span class="source-line-no">097</span><span id="line-97"> // Simulate queue blocking in testDropTimeoutRequest</span> |
| <span class="source-line-no">098</span><span id="line-98"> TEST_UTIL.getConfiguration().setInt(HConstants.REGION_SERVER_HANDLER_COUNT, 1);</span> |
| <span class="source-line-no">099</span><span id="line-99"> TEST_UTIL.startMiniCluster(2);</span> |
| <span class="source-line-no">100</span><span id="line-100"></span> |
| <span class="source-line-no">101</span><span id="line-101"> }</span> |
| <span class="source-line-no">102</span><span id="line-102"></span> |
| <span class="source-line-no">103</span><span id="line-103"> @AfterClass</span> |
| <span class="source-line-no">104</span><span id="line-104"> public static void tearDownAfterClass() throws Exception {</span> |
| <span class="source-line-no">105</span><span id="line-105"> TEST_UTIL.shutdownMiniCluster();</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"></span> |
| <span class="source-line-no">108</span><span id="line-108"> @Test</span> |
| <span class="source-line-no">109</span><span id="line-109"> public void testDropTimeoutRequest() throws Exception {</span> |
| <span class="source-line-no">110</span><span id="line-110"> // Simulate the situation that the server is slow and client retries for several times because</span> |
| <span class="source-line-no">111</span><span id="line-111"> // of timeout. When a request can be handled after waiting in the queue, we will drop it if</span> |
| <span class="source-line-no">112</span><span id="line-112"> // it has been considered as timeout at client. If we don't drop it, the server will waste time</span> |
| <span class="source-line-no">113</span><span id="line-113"> // on handling timeout requests and finally all requests timeout and client throws exception.</span> |
| <span class="source-line-no">114</span><span id="line-114"> TableDescriptorBuilder builder =</span> |
| <span class="source-line-no">115</span><span id="line-115"> TableDescriptorBuilder.newBuilder(TableName.valueOf(name.getMethodName()));</span> |
| <span class="source-line-no">116</span><span id="line-116"> builder.setCoprocessor(SleepLongerAtFirstCoprocessor.class.getName());</span> |
| <span class="source-line-no">117</span><span id="line-117"> ColumnFamilyDescriptor cfd = ColumnFamilyDescriptorBuilder.newBuilder(FAM_NAM).build();</span> |
| <span class="source-line-no">118</span><span id="line-118"> builder.setColumnFamily(cfd);</span> |
| <span class="source-line-no">119</span><span id="line-119"> TableDescriptor td = builder.build();</span> |
| <span class="source-line-no">120</span><span id="line-120"> try (Admin admin = TEST_UTIL.getConnection().getAdmin()) {</span> |
| <span class="source-line-no">121</span><span id="line-121"> admin.createTable(td);</span> |
| <span class="source-line-no">122</span><span id="line-122"> }</span> |
| <span class="source-line-no">123</span><span id="line-123"> TableBuilder tb = TEST_UTIL.getConnection().getTableBuilder(td.getTableName(), null);</span> |
| <span class="source-line-no">124</span><span id="line-124"> tb.setReadRpcTimeout(SleepLongerAtFirstCoprocessor.SLEEP_TIME * 2);</span> |
| <span class="source-line-no">125</span><span id="line-125"> tb.setWriteRpcTimeout(SleepLongerAtFirstCoprocessor.SLEEP_TIME * 2);</span> |
| <span class="source-line-no">126</span><span id="line-126"> try (Table table = tb.build()) {</span> |
| <span class="source-line-no">127</span><span id="line-127"> table.get(new Get(FAM_NAM));</span> |
| <span class="source-line-no">128</span><span id="line-128"> }</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130">}</span> |
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| </pre> |
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