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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.util;</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 org.apache.hadoop.hbase.HBaseTestingUtil;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.client.Connection;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.client.ConnectionFactory;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.client.Result;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.client.ResultScanner;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.client.Scan;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.client.Table;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.io.compress.Compression;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.util.test.LoadTestDataGenerator;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.slf4j.Logger;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">035</span><span id="line-35"></span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;</span> |
| <span class="source-line-no">037</span><span id="line-37"></span> |
| <span class="source-line-no">038</span><span id="line-38">/**</span> |
| <span class="source-line-no">039</span><span id="line-39"> * A command-line tool that spins up a local process-based cluster, loads some data, restarts the</span> |
| <span class="source-line-no">040</span><span id="line-40"> * regionserver holding hbase:meta, and verifies that the cluster recovers.</span> |
| <span class="source-line-no">041</span><span id="line-41"> */</span> |
| <span class="source-line-no">042</span><span id="line-42">public class RestartMetaTest extends AbstractHBaseTool {</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44"> private static final Logger LOG = LoggerFactory.getLogger(RestartMetaTest.class);</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46"> /** The number of region servers used if not specified */</span> |
| <span class="source-line-no">047</span><span id="line-47"> private static final int DEFAULT_NUM_RS = 2;</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> /** Table name for the test */</span> |
| <span class="source-line-no">050</span><span id="line-50"> private static TableName TABLE_NAME = TableName.valueOf("load_test");</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52"> /** The number of seconds to sleep after loading the data */</span> |
| <span class="source-line-no">053</span><span id="line-53"> private static final int SLEEP_SEC_AFTER_DATA_LOAD = 5;</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> /** The actual number of region servers */</span> |
| <span class="source-line-no">056</span><span id="line-56"> private int numRegionServers;</span> |
| <span class="source-line-no">057</span><span id="line-57"></span> |
| <span class="source-line-no">058</span><span id="line-58"> private static final String OPT_NUM_RS = "num_rs";</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 int NUM_DATANODES = 3;</span> |
| <span class="source-line-no">061</span><span id="line-61"></span> |
| <span class="source-line-no">062</span><span id="line-62"> /** Loads data into the table using the multi-threaded writer. */</span> |
| <span class="source-line-no">063</span><span id="line-63"> private void loadData() throws IOException {</span> |
| <span class="source-line-no">064</span><span id="line-64"> long startKey = 0;</span> |
| <span class="source-line-no">065</span><span id="line-65"> long endKey = 100000;</span> |
| <span class="source-line-no">066</span><span id="line-66"> int minColsPerKey = 5;</span> |
| <span class="source-line-no">067</span><span id="line-67"> int maxColsPerKey = 15;</span> |
| <span class="source-line-no">068</span><span id="line-68"> int minColDataSize = 256;</span> |
| <span class="source-line-no">069</span><span id="line-69"> int maxColDataSize = 256 * 3;</span> |
| <span class="source-line-no">070</span><span id="line-70"> int numThreads = 10;</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> // print out the arguments</span> |
| <span class="source-line-no">073</span><span id="line-73"> System.out.printf("Key range %d .. %d\n", startKey, endKey);</span> |
| <span class="source-line-no">074</span><span id="line-74"> System.out.printf("Number of Columns/Key: %d..%d\n", minColsPerKey, maxColsPerKey);</span> |
| <span class="source-line-no">075</span><span id="line-75"> System.out.printf("Data Size/Column: %d..%d bytes\n", minColDataSize, maxColDataSize);</span> |
| <span class="source-line-no">076</span><span id="line-76"> System.out.printf("Client Threads: %d\n", numThreads);</span> |
| <span class="source-line-no">077</span><span id="line-77"></span> |
| <span class="source-line-no">078</span><span id="line-78"> // start the writers</span> |
| <span class="source-line-no">079</span><span id="line-79"> LoadTestDataGenerator dataGen = new MultiThreadedAction.DefaultDataGenerator(minColDataSize,</span> |
| <span class="source-line-no">080</span><span id="line-80"> maxColDataSize, minColsPerKey, maxColsPerKey, HFileTestUtil.DEFAULT_COLUMN_FAMILY);</span> |
| <span class="source-line-no">081</span><span id="line-81"> MultiThreadedWriter writer = new MultiThreadedWriter(dataGen, conf, TABLE_NAME);</span> |
| <span class="source-line-no">082</span><span id="line-82"> writer.setMultiPut(true);</span> |
| <span class="source-line-no">083</span><span id="line-83"> writer.start(startKey, endKey, numThreads);</span> |
| <span class="source-line-no">084</span><span id="line-84"> System.out.printf("Started loading data...");</span> |
| <span class="source-line-no">085</span><span id="line-85"> writer.waitForFinish();</span> |
| <span class="source-line-no">086</span><span id="line-86"> System.out.printf("Finished loading data...");</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"> @Override</span> |
| <span class="source-line-no">090</span><span id="line-90"> protected int doWork() throws Exception {</span> |
| <span class="source-line-no">091</span><span id="line-91"> ProcessBasedLocalHBaseCluster hbaseCluster =</span> |
| <span class="source-line-no">092</span><span id="line-92"> new ProcessBasedLocalHBaseCluster(conf, NUM_DATANODES, numRegionServers);</span> |
| <span class="source-line-no">093</span><span id="line-93"> hbaseCluster.startMiniDFS();</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> // start the process based HBase cluster</span> |
| <span class="source-line-no">096</span><span id="line-96"> hbaseCluster.startHBase();</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> // create tables if needed</span> |
| <span class="source-line-no">099</span><span id="line-99"> HBaseTestingUtil.createPreSplitLoadTestTable(conf, TABLE_NAME,</span> |
| <span class="source-line-no">100</span><span id="line-100"> HFileTestUtil.DEFAULT_COLUMN_FAMILY, Compression.Algorithm.NONE, DataBlockEncoding.NONE);</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> LOG.debug("Loading data....\n\n");</span> |
| <span class="source-line-no">103</span><span id="line-103"> loadData();</span> |
| <span class="source-line-no">104</span><span id="line-104"></span> |
| <span class="source-line-no">105</span><span id="line-105"> LOG.debug("Sleeping for " + SLEEP_SEC_AFTER_DATA_LOAD + " seconds....\n\n");</span> |
| <span class="source-line-no">106</span><span id="line-106"> Threads.sleep(5 * SLEEP_SEC_AFTER_DATA_LOAD);</span> |
| <span class="source-line-no">107</span><span id="line-107"></span> |
| <span class="source-line-no">108</span><span id="line-108"> Connection connection = ConnectionFactory.createConnection(conf);</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> int metaRSPort = HBaseTestingUtil.getMetaRSPort(connection);</span> |
| <span class="source-line-no">111</span><span id="line-111"></span> |
| <span class="source-line-no">112</span><span id="line-112"> LOG.debug("Killing hbase:meta region server running on port " + metaRSPort);</span> |
| <span class="source-line-no">113</span><span id="line-113"> hbaseCluster.killRegionServer(metaRSPort);</span> |
| <span class="source-line-no">114</span><span id="line-114"> Threads.sleep(2000);</span> |
| <span class="source-line-no">115</span><span id="line-115"></span> |
| <span class="source-line-no">116</span><span id="line-116"> LOG.debug("Restarting region server running on port metaRSPort");</span> |
| <span class="source-line-no">117</span><span id="line-117"> hbaseCluster.startRegionServer(metaRSPort);</span> |
| <span class="source-line-no">118</span><span id="line-118"> Threads.sleep(2000);</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> LOG.debug("Trying to scan meta");</span> |
| <span class="source-line-no">121</span><span id="line-121"></span> |
| <span class="source-line-no">122</span><span id="line-122"> Table metaTable = connection.getTable(TableName.META_TABLE_NAME);</span> |
| <span class="source-line-no">123</span><span id="line-123"> ResultScanner scanner = metaTable.getScanner(new Scan());</span> |
| <span class="source-line-no">124</span><span id="line-124"> Result result;</span> |
| <span class="source-line-no">125</span><span id="line-125"> while ((result = scanner.next()) != null) {</span> |
| <span class="source-line-no">126</span><span id="line-126"> LOG.info("Region assignment from META: " + Bytes.toStringBinary(result.getRow()) + " => "</span> |
| <span class="source-line-no">127</span><span id="line-127"> + Bytes.toStringBinary(</span> |
| <span class="source-line-no">128</span><span id="line-128"> result.getFamilyMap(HConstants.CATALOG_FAMILY).get(HConstants.SERVER_QUALIFIER)));</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130"> metaTable.close();</span> |
| <span class="source-line-no">131</span><span id="line-131"> connection.close();</span> |
| <span class="source-line-no">132</span><span id="line-132"> return 0;</span> |
| <span class="source-line-no">133</span><span id="line-133"> }</span> |
| <span class="source-line-no">134</span><span id="line-134"></span> |
| <span class="source-line-no">135</span><span id="line-135"> @Override</span> |
| <span class="source-line-no">136</span><span id="line-136"> protected void addOptions() {</span> |
| <span class="source-line-no">137</span><span id="line-137"> addOptWithArg(OPT_NUM_RS, "Number of Region Servers");</span> |
| <span class="source-line-no">138</span><span id="line-138"> addOptWithArg(HFileTestUtil.OPT_DATA_BLOCK_ENCODING,</span> |
| <span class="source-line-no">139</span><span id="line-139"> HFileTestUtil.OPT_DATA_BLOCK_ENCODING_USAGE);</span> |
| <span class="source-line-no">140</span><span id="line-140"> }</span> |
| <span class="source-line-no">141</span><span id="line-141"></span> |
| <span class="source-line-no">142</span><span id="line-142"> @Override</span> |
| <span class="source-line-no">143</span><span id="line-143"> protected void processOptions(CommandLine cmd) {</span> |
| <span class="source-line-no">144</span><span id="line-144"> numRegionServers =</span> |
| <span class="source-line-no">145</span><span id="line-145"> Integer.parseInt(cmd.getOptionValue(OPT_NUM_RS, String.valueOf(DEFAULT_NUM_RS)));</span> |
| <span class="source-line-no">146</span><span id="line-146"> }</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> public static void main(String[] args) {</span> |
| <span class="source-line-no">149</span><span id="line-149"> new RestartMetaTest().doStaticMain(args);</span> |
| <span class="source-line-no">150</span><span id="line-150"> }</span> |
| <span class="source-line-no">151</span><span id="line-151"></span> |
| <span class="source-line-no">152</span><span id="line-152">}</span> |
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