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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.mapreduce;<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.assertNotNull;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import static org.junit.Assert.assertTrue;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.junit.Assert.fail;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.io.File;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.io.IOException;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Map;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.NavigableMap;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.fs.FileUtil;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.fs.Path;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.TableName;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.TableNotEnabledException;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Put;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Result;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.Table;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.testclassification.LargeTests;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.testclassification.VerySlowMapReduceTests;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.mapreduce.Counter;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.mapreduce.Counters;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.mapreduce.Job;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.junit.ClassRule;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.junit.Test;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.junit.experimental.categories.Category;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.slf4j.Logger;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.slf4j.LoggerFactory;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span>/**<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * Test Map/Reduce job over HBase tables. The map/reduce process we're testing on our tables is<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * simple - take every row in the table, reverse the value of a particular cell, and write it back<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * to the table.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> */<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span>@Category({ VerySlowMapReduceTests.class, LargeTests.class })<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>public class TestTableMapReduce extends TestTableMapReduceBase {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> @ClassRule<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> HBaseClassTestRule.forClass(TestTableMapReduce.class);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private static final Logger LOG = LoggerFactory.getLogger(TestTableMapReduce.class);<a name="line.66"></a> |
| <span class="sourceLineNo">067</span><a name="line.67"></a> |
| <span class="sourceLineNo">068</span> @Override<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> protected Logger getLog() {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> return LOG;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> }<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> /**<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * Pass the given key and processed record reduce<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> */<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> static class ProcessContentsMapper extends TableMapper<ImmutableBytesWritable, Put> {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> /**<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * Pass the key, and reversed value to reduce<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> */<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> @Override<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> public void map(ImmutableBytesWritable key, Result value, Context context)<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> throws IOException, InterruptedException {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> if (value.size() != 1) {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> throw new IOException("There should only be one input column");<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> Map<byte[], NavigableMap<byte[], NavigableMap<Long, byte[]>>> cf = value.getMap();<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> if (!cf.containsKey(INPUT_FAMILY)) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> throw new IOException(<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> "Wrong input columns. Missing: '" + Bytes.toString(INPUT_FAMILY) + "'.");<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> // Get the original value and reverse it<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> String originalValue = Bytes.toString(value.getValue(INPUT_FAMILY, INPUT_FAMILY));<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> StringBuilder newValue = new StringBuilder(originalValue);<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> newValue.reverse();<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> // Now set the value to be collected<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> Put outval = new Put(key.get());<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> outval.addColumn(OUTPUT_FAMILY, null, Bytes.toBytes(newValue.toString()));<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> context.write(key, outval);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> }<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> @Override<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> protected void runTestOnTable(Table table) throws IOException {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> Job job = null;<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> try {<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> LOG.info("Before map/reduce startup");<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> job = new Job(table.getConfiguration(), "process column contents");<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> job.setNumReduceTasks(1);<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> Scan scan = new Scan();<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> scan.addFamily(INPUT_FAMILY);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> TableMapReduceUtil.initTableMapperJob(table.getName().getNameAsString(), scan,<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> ProcessContentsMapper.class, ImmutableBytesWritable.class, Put.class, job);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> TableMapReduceUtil.initTableReducerJob(table.getName().getNameAsString(),<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> IdentityTableReducer.class, job);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> FileOutputFormat.setOutputPath(job, new Path("test"));<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> LOG.info("Started " + table.getName().getNameAsString());<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> assertTrue(job.waitForCompletion(true));<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> LOG.info("After map/reduce completion");<a name="line.120"></a> |
| <span class="sourceLineNo">121</span><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> // verify map-reduce results<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> verify(table.getName());<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> verifyJobCountersAreEmitted(job);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> } catch (InterruptedException e) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> throw new IOException(e);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> } catch (ClassNotFoundException e) {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> throw new IOException(e);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> } finally {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> table.close();<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> if (job != null) {<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> FileUtil.fullyDelete(new File(job.getConfiguration().get("hadoop.tmp.dir")));<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> }<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> * Verify scan counters are emitted from the job<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> */<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> private void verifyJobCountersAreEmitted(Job job) throws IOException {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> Counters counters = job.getCounters();<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> Counter counter =<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> counters.findCounter(TableRecordReaderImpl.HBASE_COUNTER_GROUP_NAME, "RPC_CALLS");<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> assertNotNull("Unable to find Job counter for HBase scan metrics, RPC_CALLS", counter);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> assertTrue("Counter value for RPC_CALLS should be larger than 0", counter.getValue() > 0);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> @Test(expected = TableNotEnabledException.class)<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> public void testWritingToDisabledTable() throws IOException {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span><a name="line.151"></a> |
| <span class="sourceLineNo">152</span> try (Admin admin = UTIL.getConnection().getAdmin();<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> Table table = UTIL.getConnection().getTable(TABLE_FOR_NEGATIVE_TESTS)) {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> admin.disableTable(table.getName());<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> runTestOnTable(table);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> fail("Should not have reached here, should have thrown an exception");<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> @Test(expected = TableNotFoundException.class)<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> public void testWritingToNonExistentTable() throws IOException {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span><a name="line.162"></a> |
| <span class="sourceLineNo">163</span> try (Table table = UTIL.getConnection().getTable(TableName.valueOf("table-does-not-exist"))) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> runTestOnTable(table);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> fail("Should not have reached here, should have thrown an exception");<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> }<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span>}<a name="line.168"></a> |
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