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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;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import com.google.errorprone.annotations.RestrictedApi;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Arrays;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.concurrent.TimeUnit;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.conf.Configured;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.ConnectionUtils;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.Consistency;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.Get;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.Put;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Result;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Table;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.metrics.impl.FastLongHistogram;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.util.Tool;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.util.ToolRunner;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.slf4j.Logger;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.slf4j.LoggerFactory;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span><a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.DefaultParser;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.HelpFormatter;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.Options;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span>/**<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * A tool to evaluating the lag between primary replica and secondary replica.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * <p/><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * It simply adds a row to the primary replica, and then check how long before we can read it from<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * the secondary replica.<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> */<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>@InterfaceAudience.Private<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>public class RegionReplicationLagEvaluation extends Configured implements Tool {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private static final Logger LOG = LoggerFactory.getLogger(RegionReplicationLagEvaluation.class);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public static final String TABLE_NAME = "TestLagTable";<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> public static final String FAMILY_NAME = "info";<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> public static final String QUALIFIER_NAME = "qual";<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> public static final int VALUE_LENGTH = 256;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> public static final int ROW_LENGTH = 16;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span><a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private static final Options OPTIONS = new Options().addOption("t", "table", true, "Table name")<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> .addOption("rlen", "rlength", true, "The length of row key")<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> .addOption("vlen", "vlength", true, "The length of value")<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> .addRequiredOption("r", "rows", true, "Number of rows to test");<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> private FastLongHistogram histogram = new FastLongHistogram();<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> @RestrictedApi(explanation = "Should only be called in tests", link = "",<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> allowedOnPath = ".*/src/test/.*")<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> FastLongHistogram getHistogram() {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> return histogram;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> }<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> @Override<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> public int run(String[] args) throws Exception {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> TableName tableName;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> int rlen;<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> int vlen;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> int rows;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> try {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> CommandLine cli = new DefaultParser().parse(OPTIONS, args);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> tableName = TableName.valueOf(cli.getOptionValue("t", TABLE_NAME));<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> rlen = Integer.parseInt(cli.getOptionValue("rlen", String.valueOf(ROW_LENGTH)));<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> vlen = Integer.parseInt(cli.getOptionValue("vlen", String.valueOf(VALUE_LENGTH)));<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> rows = Integer.parseInt(cli.getOptionValue("r"));<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> } catch (Exception e) {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> LOG.warn("Error parsing command line options", e);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> HelpFormatter formatter = new HelpFormatter();<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> formatter.printHelp(getClass().getName(), OPTIONS);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> return -1;<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> exec(tableName, rlen, vlen, rows);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> return 0;<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> private void createTable(Admin admin, TableName tableName) throws IOException {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> TableDescriptor td = TableDescriptorBuilder.newBuilder(tableName)<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY_NAME)).setRegionReplication(2)<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> .build();<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> admin.createTable(td);<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> private void checkLag(Table table, int rlen, int vlen, int rows) throws IOException {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> byte[] family = Bytes.toBytes(FAMILY_NAME);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> byte[] qualifier = Bytes.toBytes(QUALIFIER_NAME);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> LOG.info("Test replication lag on table {} with {} rows", table.getName(), rows);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> for (int i = 0; i < rows; i++) {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> byte[] row = new byte[rlen];<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> Bytes.random(row);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> byte[] value = new byte[vlen];<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> Bytes.random(value);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> table.put(new Put(row).addColumn(family, qualifier, value));<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // get from secondary replica<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> Get get = new Get(row).setConsistency(Consistency.TIMELINE).setReplicaId(1);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> long startNs = System.nanoTime();<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> for (int retry = 0;; retry++) {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> Result result = table.get(get);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> byte[] gotValue = result.getValue(family, qualifier);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (Arrays.equals(value, gotValue)) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> break;<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> long pauseTimeMs = Math.min(ConnectionUtils.getPauseTime(1, retry), 1000);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> Threads.sleepWithoutInterrupt(pauseTimeMs);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> long lagMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> histogram.add(lagMs, 1);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> }<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> LOG.info("Test finished, min lag {} ms, max lag {} ms, mean lag {} ms", histogram.getMin(),<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> histogram.getMax(), histogram.getMean());<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> long[] q = histogram.getQuantiles(FastLongHistogram.DEFAULT_QUANTILES);<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> for (int i = 0; i < q.length; i++) {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> LOG.info("{}% lag: {} ms", FastLongHistogram.DEFAULT_QUANTILES[i] * 100, q[i]);<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> }<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> }<a name="line.145"></a> |
| <span class="sourceLineNo">146</span><a name="line.146"></a> |
| <span class="sourceLineNo">147</span> private void exec(TableName tableName, int rlen, int vlen, int rows) throws IOException {<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> try (Connection conn = ConnectionFactory.createConnection(getConf())) {<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> try (Admin admin = conn.getAdmin()) {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> if (!admin.tableExists(tableName)) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> createTable(admin, tableName);<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> try (Table table = conn.getTable(tableName)) {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> checkLag(table, rlen, vlen, rows);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> }<a name="line.158"></a> |
| <span class="sourceLineNo">159</span><a name="line.159"></a> |
| <span class="sourceLineNo">160</span> public static void main(String[] args) throws Exception {<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> int res =<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> ToolRunner.run(HBaseConfiguration.create(), new RegionReplicationLagEvaluation(), args);<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> System.exit(res);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span>}<a name="line.165"></a> |
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