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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.assertEquals;<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><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.io.File;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.ArrayList;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Locale;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.Map;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.NavigableMap;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.conf.Configuration;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.fs.FileUtil;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.fs.Path;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.TableName;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Result;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.Table;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.logging.Log4jUtils;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.io.NullWritable;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.mapreduce.Job;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.mapreduce.Reducer;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.junit.After;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.junit.AfterClass;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.junit.BeforeClass;<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.slf4j.Logger;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.slf4j.LoggerFactory;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span>/**<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * Base set of tests and setup for input formats touching multiple tables.<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> */<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>public abstract class MultiTableInputFormatTestBase {<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> static final Logger LOG = LoggerFactory.getLogger(TestMultiTableInputFormat.class);<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> public static final HBaseTestingUtil TEST_UTIL = new HBaseTestingUtil();<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> static final String TABLE_NAME = "scantest";<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> static final byte[] INPUT_FAMILY = Bytes.toBytes("contents");<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> static final String KEY_STARTROW = "startRow";<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> static final String KEY_LASTROW = "stpRow";<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> static List<String> TABLES = Lists.newArrayList();<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> static {<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> for (int i = 0; i < 3; i++) {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> TABLES.add(TABLE_NAME + String.valueOf(i));<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> }<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> @BeforeClass<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public static void setUpBeforeClass() throws Exception {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> // switch TIF to log at DEBUG level<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> Log4jUtils.enableDebug(MultiTableInputFormatBase.class);<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> // start mini hbase cluster<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> TEST_UTIL.startMiniCluster(3);<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> // create and fill table<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> for (String tableName : TABLES) {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> try (Table table =<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> TEST_UTIL.createMultiRegionTable(TableName.valueOf(tableName), INPUT_FAMILY, 4)) {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> TEST_UTIL.loadTable(table, INPUT_FAMILY, false);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> }<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> @AfterClass<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> public static void tearDownAfterClass() throws Exception {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> TEST_UTIL.shutdownMiniCluster();<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> @After<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> public void tearDown() throws Exception {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> Configuration c = TEST_UTIL.getConfiguration();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> FileUtil.fullyDelete(new File(c.get("hadoop.tmp.dir")));<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> /**<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * Pass the key and value to reducer.<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> */<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> public static class ScanMapper<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> extends TableMapper<ImmutableBytesWritable, ImmutableBytesWritable> {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> /**<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * Pass the key and value to reduce.<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * @param key The key, here "aaa", "aab" etc.<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * @param value The value is the same as the key.<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * @param context The task context.<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * @throws IOException When reading the rows fails.<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> */<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> @Override<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> public void map(ImmutableBytesWritable key, Result value, Context context)<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> throws IOException, InterruptedException {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> makeAssertions(key, value);<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> context.write(key, key);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<a name="line.116"></a> |
| <span class="sourceLineNo">117</span><a name="line.117"></a> |
| <span class="sourceLineNo">118</span> public void makeAssertions(ImmutableBytesWritable key, Result value) throws IOException {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> if (value.size() != 1) {<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> throw new IOException("There should only be one input column");<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> Map<byte[], NavigableMap<byte[], NavigableMap<Long, byte[]>>> cf = value.getMap();<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> if (!cf.containsKey(INPUT_FAMILY)) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> throw new IOException(<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> "Wrong input columns. Missing: '" + Bytes.toString(INPUT_FAMILY) + "'.");<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> }<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> String val = Bytes.toStringBinary(value.getValue(INPUT_FAMILY, null));<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> LOG.debug("map: key -> " + Bytes.toStringBinary(key.get()) + ", value -> " + val);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> }<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> * Checks the last and first keys seen against the scanner boundaries.<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> */<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> public static class ScanReducer<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> extends Reducer<ImmutableBytesWritable, ImmutableBytesWritable, NullWritable, NullWritable> {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> private String first = null;<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> private String last = null;<a name="line.138"></a> |
| <span class="sourceLineNo">139</span><a name="line.139"></a> |
| <span class="sourceLineNo">140</span> @Override<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> protected void reduce(ImmutableBytesWritable key, Iterable<ImmutableBytesWritable> values,<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> Context context) throws IOException, InterruptedException {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> makeAssertions(key, values);<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> protected void makeAssertions(ImmutableBytesWritable key,<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> Iterable<ImmutableBytesWritable> values) {<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> int count = 0;<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> for (ImmutableBytesWritable value : values) {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> String val = Bytes.toStringBinary(value.get());<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> LOG.debug(<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> "reduce: key[" + count + "] -> " + Bytes.toStringBinary(key.get()) + ", value -> " + val);<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> if (first == null) first = val;<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> last = val;<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> count++;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> assertEquals(3, count);<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> @Override<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> protected void cleanup(Context context) throws IOException, InterruptedException {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> Configuration c = context.getConfiguration();<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> cleanup(c);<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> |
| <span class="sourceLineNo">166</span> protected void cleanup(Configuration c) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> String startRow = c.get(KEY_STARTROW);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> String lastRow = c.get(KEY_LASTROW);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> LOG.info("cleanup: first -> \"" + first + "\", start row -> \"" + startRow + "\"");<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> LOG.info("cleanup: last -> \"" + last + "\", last row -> \"" + lastRow + "\"");<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> if (startRow != null && startRow.length() > 0) {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> assertEquals(startRow, first);<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> if (lastRow != null && lastRow.length() > 0) {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> assertEquals(lastRow, last);<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> }<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> }<a name="line.178"></a> |
| <span class="sourceLineNo">179</span><a name="line.179"></a> |
| <span class="sourceLineNo">180</span> @Test<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> public void testScanEmptyToEmpty()<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> testScan(null, null, null);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> }<a name="line.184"></a> |
| <span class="sourceLineNo">185</span><a name="line.185"></a> |
| <span class="sourceLineNo">186</span> @Test<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> public void testScanEmptyToAPP()<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> testScan(null, "app", "apo");<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> }<a name="line.190"></a> |
| <span class="sourceLineNo">191</span><a name="line.191"></a> |
| <span class="sourceLineNo">192</span> @Test<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> public void testScanOBBToOPP() throws IOException, InterruptedException, ClassNotFoundException {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> testScan("obb", "opp", "opo");<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> @Test<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> public void testScanYZYToEmpty()<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> testScan("yzy", null, "zzz");<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> /**<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> * Tests a MR scan using specific start and stop rows.<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> */<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> private void testScan(String start, String stop, String last)<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> String jobName = "Scan" + (start != null ? start.toUpperCase(Locale.ROOT) : "Empty") + "To"<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> + (stop != null ? stop.toUpperCase(Locale.ROOT) : "Empty");<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> LOG.info("Before map/reduce startup - job " + jobName);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> Configuration c = new Configuration(TEST_UTIL.getConfiguration());<a name="line.211"></a> |
| <span class="sourceLineNo">212</span><a name="line.212"></a> |
| <span class="sourceLineNo">213</span> c.set(KEY_STARTROW, start != null ? start : "");<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> c.set(KEY_LASTROW, last != null ? last : "");<a name="line.214"></a> |
| <span class="sourceLineNo">215</span><a name="line.215"></a> |
| <span class="sourceLineNo">216</span> List<Scan> scans = new ArrayList<>();<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> for (String tableName : TABLES) {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> Scan scan = new Scan();<a name="line.219"></a> |
| <span class="sourceLineNo">220</span><a name="line.220"></a> |
| <span class="sourceLineNo">221</span> scan.addFamily(INPUT_FAMILY);<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> scan.setAttribute(Scan.SCAN_ATTRIBUTES_TABLE_NAME, Bytes.toBytes(tableName));<a name="line.222"></a> |
| <span class="sourceLineNo">223</span><a name="line.223"></a> |
| <span class="sourceLineNo">224</span> if (start != null) {<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> scan.withStartRow(Bytes.toBytes(start));<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> }<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> if (stop != null) {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> scan.withStopRow(Bytes.toBytes(stop));<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> }<a name="line.229"></a> |
| <span class="sourceLineNo">230</span><a name="line.230"></a> |
| <span class="sourceLineNo">231</span> scans.add(scan);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span><a name="line.232"></a> |
| <span class="sourceLineNo">233</span> LOG.info("scan before: " + scan);<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span><a name="line.235"></a> |
| <span class="sourceLineNo">236</span> runJob(jobName, c, scans);<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> }<a name="line.237"></a> |
| <span class="sourceLineNo">238</span><a name="line.238"></a> |
| <span class="sourceLineNo">239</span> protected void runJob(String jobName, Configuration c, List<Scan> scans)<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> Job job = new Job(c, jobName);<a name="line.241"></a> |
| <span class="sourceLineNo">242</span><a name="line.242"></a> |
| <span class="sourceLineNo">243</span> initJob(scans, job);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> job.setReducerClass(ScanReducer.class);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> job.setNumReduceTasks(1); // one to get final "first" and "last" key<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> FileOutputFormat.setOutputPath(job, new Path(job.getJobName()));<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> LOG.info("Started " + job.getJobName());<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> job.waitForCompletion(true);<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> assertTrue(job.isSuccessful());<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> LOG.info("After map/reduce completion - job " + jobName);<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> protected abstract void initJob(List<Scan> scans, Job job) throws IOException;<a name="line.253"></a> |
| <span class="sourceLineNo">254</span><a name="line.254"></a> |
| <span class="sourceLineNo">255</span>}<a name="line.255"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
