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<FONT color="green">001</FONT>    /**<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<FONT color="green">003</FONT>     * or more contributor license agreements.  See the NOTICE file<a name="line.3"></a>
<FONT color="green">004</FONT>     * distributed with this work for additional information<a name="line.4"></a>
<FONT color="green">005</FONT>     * regarding copyright ownership.  The ASF licenses this file<a name="line.5"></a>
<FONT color="green">006</FONT>     * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<FONT color="green">007</FONT>     * "License"); you may not use this file except in compliance<a name="line.7"></a>
<FONT color="green">008</FONT>     * with the License.  You may obtain a copy of the License at<a name="line.8"></a>
<FONT color="green">009</FONT>     *<a name="line.9"></a>
<FONT color="green">010</FONT>     *     http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<FONT color="green">011</FONT>     *<a name="line.11"></a>
<FONT color="green">012</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<FONT color="green">013</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<FONT color="green">014</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<FONT color="green">015</FONT>     * See the License for the specific language governing permissions and<a name="line.15"></a>
<FONT color="green">016</FONT>     * limitations under the License.<a name="line.16"></a>
<FONT color="green">017</FONT>     */<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    package org.apache.hadoop.mapreduce.lib.output;<a name="line.19"></a>
<FONT color="green">020</FONT>    <a name="line.20"></a>
<FONT color="green">021</FONT>    import java.io.IOException;<a name="line.21"></a>
<FONT color="green">022</FONT>    <a name="line.22"></a>
<FONT color="green">023</FONT>    import org.apache.commons.logging.Log;<a name="line.23"></a>
<FONT color="green">024</FONT>    import org.apache.commons.logging.LogFactory;<a name="line.24"></a>
<FONT color="green">025</FONT>    import org.apache.hadoop.classification.InterfaceAudience;<a name="line.25"></a>
<FONT color="green">026</FONT>    import org.apache.hadoop.classification.InterfaceAudience.Private;<a name="line.26"></a>
<FONT color="green">027</FONT>    import org.apache.hadoop.classification.InterfaceStability;<a name="line.27"></a>
<FONT color="green">028</FONT>    import org.apache.hadoop.fs.FileStatus;<a name="line.28"></a>
<FONT color="green">029</FONT>    import org.apache.hadoop.fs.FileSystem;<a name="line.29"></a>
<FONT color="green">030</FONT>    import org.apache.hadoop.fs.Path;<a name="line.30"></a>
<FONT color="green">031</FONT>    import org.apache.hadoop.fs.PathFilter;<a name="line.31"></a>
<FONT color="green">032</FONT>    import org.apache.hadoop.mapreduce.JobContext;<a name="line.32"></a>
<FONT color="green">033</FONT>    import org.apache.hadoop.mapreduce.JobStatus;<a name="line.33"></a>
<FONT color="green">034</FONT>    import org.apache.hadoop.mapreduce.MRJobConfig;<a name="line.34"></a>
<FONT color="green">035</FONT>    import org.apache.hadoop.mapreduce.OutputCommitter;<a name="line.35"></a>
<FONT color="green">036</FONT>    import org.apache.hadoop.mapreduce.TaskAttemptContext;<a name="line.36"></a>
<FONT color="green">037</FONT>    import org.apache.hadoop.mapreduce.TaskAttemptID;<a name="line.37"></a>
<FONT color="green">038</FONT>    <a name="line.38"></a>
<FONT color="green">039</FONT>    /** An {@link OutputCommitter} that commits files specified <a name="line.39"></a>
<FONT color="green">040</FONT>     * in job output directory i.e. ${mapreduce.output.fileoutputformat.outputdir}.<a name="line.40"></a>
<FONT color="green">041</FONT>     **/<a name="line.41"></a>
<FONT color="green">042</FONT>    @InterfaceAudience.Public<a name="line.42"></a>
<FONT color="green">043</FONT>    @InterfaceStability.Stable<a name="line.43"></a>
<FONT color="green">044</FONT>    public class FileOutputCommitter extends OutputCommitter {<a name="line.44"></a>
<FONT color="green">045</FONT>      private static final Log LOG = LogFactory.getLog(FileOutputCommitter.class);<a name="line.45"></a>
<FONT color="green">046</FONT>    <a name="line.46"></a>
<FONT color="green">047</FONT>      /** <a name="line.47"></a>
<FONT color="green">048</FONT>       * Name of directory where pending data is placed.  Data that has not been<a name="line.48"></a>
<FONT color="green">049</FONT>       * committed yet.<a name="line.49"></a>
<FONT color="green">050</FONT>       */<a name="line.50"></a>
<FONT color="green">051</FONT>      public static final String PENDING_DIR_NAME = "_temporary";<a name="line.51"></a>
<FONT color="green">052</FONT>      public static final String SUCCEEDED_FILE_NAME = "_SUCCESS";<a name="line.52"></a>
<FONT color="green">053</FONT>      public static final String SUCCESSFUL_JOB_OUTPUT_DIR_MARKER = <a name="line.53"></a>
<FONT color="green">054</FONT>        "mapreduce.fileoutputcommitter.marksuccessfuljobs";<a name="line.54"></a>
<FONT color="green">055</FONT>      private Path outputPath = null;<a name="line.55"></a>
<FONT color="green">056</FONT>      private Path workPath = null;<a name="line.56"></a>
<FONT color="green">057</FONT>    <a name="line.57"></a>
<FONT color="green">058</FONT>      /**<a name="line.58"></a>
<FONT color="green">059</FONT>       * Create a file output committer<a name="line.59"></a>
<FONT color="green">060</FONT>       * @param outputPath the job's output path, or null if you want the output<a name="line.60"></a>
<FONT color="green">061</FONT>       * committer to act as a noop.<a name="line.61"></a>
<FONT color="green">062</FONT>       * @param context the task's context<a name="line.62"></a>
<FONT color="green">063</FONT>       * @throws IOException<a name="line.63"></a>
<FONT color="green">064</FONT>       */<a name="line.64"></a>
<FONT color="green">065</FONT>      public FileOutputCommitter(Path outputPath, <a name="line.65"></a>
<FONT color="green">066</FONT>                                 TaskAttemptContext context) throws IOException {<a name="line.66"></a>
<FONT color="green">067</FONT>        this(outputPath, (JobContext)context);<a name="line.67"></a>
<FONT color="green">068</FONT>        if (outputPath != null) {<a name="line.68"></a>
<FONT color="green">069</FONT>          workPath = getTaskAttemptPath(context, outputPath);<a name="line.69"></a>
<FONT color="green">070</FONT>        }<a name="line.70"></a>
<FONT color="green">071</FONT>      }<a name="line.71"></a>
<FONT color="green">072</FONT>      <a name="line.72"></a>
<FONT color="green">073</FONT>      /**<a name="line.73"></a>
<FONT color="green">074</FONT>       * Create a file output committer<a name="line.74"></a>
<FONT color="green">075</FONT>       * @param outputPath the job's output path, or null if you want the output<a name="line.75"></a>
<FONT color="green">076</FONT>       * committer to act as a noop.<a name="line.76"></a>
<FONT color="green">077</FONT>       * @param context the task's context<a name="line.77"></a>
<FONT color="green">078</FONT>       * @throws IOException<a name="line.78"></a>
<FONT color="green">079</FONT>       */<a name="line.79"></a>
<FONT color="green">080</FONT>      @Private<a name="line.80"></a>
<FONT color="green">081</FONT>      public FileOutputCommitter(Path outputPath, <a name="line.81"></a>
<FONT color="green">082</FONT>                                 JobContext context) throws IOException {<a name="line.82"></a>
<FONT color="green">083</FONT>        if (outputPath != null) {<a name="line.83"></a>
<FONT color="green">084</FONT>          FileSystem fs = outputPath.getFileSystem(context.getConfiguration());<a name="line.84"></a>
<FONT color="green">085</FONT>          this.outputPath = fs.makeQualified(outputPath);<a name="line.85"></a>
<FONT color="green">086</FONT>        }<a name="line.86"></a>
<FONT color="green">087</FONT>      }<a name="line.87"></a>
<FONT color="green">088</FONT>      <a name="line.88"></a>
<FONT color="green">089</FONT>      /**<a name="line.89"></a>
<FONT color="green">090</FONT>       * @return the path where final output of the job should be placed.  This<a name="line.90"></a>
<FONT color="green">091</FONT>       * could also be considered the committed application attempt path.<a name="line.91"></a>
<FONT color="green">092</FONT>       */<a name="line.92"></a>
<FONT color="green">093</FONT>      private Path getOutputPath() {<a name="line.93"></a>
<FONT color="green">094</FONT>        return this.outputPath;<a name="line.94"></a>
<FONT color="green">095</FONT>      }<a name="line.95"></a>
<FONT color="green">096</FONT>      <a name="line.96"></a>
<FONT color="green">097</FONT>      /**<a name="line.97"></a>
<FONT color="green">098</FONT>       * @return true if we have an output path set, else false.<a name="line.98"></a>
<FONT color="green">099</FONT>       */<a name="line.99"></a>
<FONT color="green">100</FONT>      private boolean hasOutputPath() {<a name="line.100"></a>
<FONT color="green">101</FONT>        return this.outputPath != null;<a name="line.101"></a>
<FONT color="green">102</FONT>      }<a name="line.102"></a>
<FONT color="green">103</FONT>      <a name="line.103"></a>
<FONT color="green">104</FONT>      /**<a name="line.104"></a>
<FONT color="green">105</FONT>       * @return the path where the output of pending job attempts are<a name="line.105"></a>
<FONT color="green">106</FONT>       * stored.<a name="line.106"></a>
<FONT color="green">107</FONT>       */<a name="line.107"></a>
<FONT color="green">108</FONT>      private Path getPendingJobAttemptsPath() {<a name="line.108"></a>
<FONT color="green">109</FONT>        return getPendingJobAttemptsPath(getOutputPath());<a name="line.109"></a>
<FONT color="green">110</FONT>      }<a name="line.110"></a>
<FONT color="green">111</FONT>      <a name="line.111"></a>
<FONT color="green">112</FONT>      /**<a name="line.112"></a>
<FONT color="green">113</FONT>       * Get the location of pending job attempts.<a name="line.113"></a>
<FONT color="green">114</FONT>       * @param out the base output directory.<a name="line.114"></a>
<FONT color="green">115</FONT>       * @return the location of pending job attempts.<a name="line.115"></a>
<FONT color="green">116</FONT>       */<a name="line.116"></a>
<FONT color="green">117</FONT>      private static Path getPendingJobAttemptsPath(Path out) {<a name="line.117"></a>
<FONT color="green">118</FONT>        return new Path(out, PENDING_DIR_NAME);<a name="line.118"></a>
<FONT color="green">119</FONT>      }<a name="line.119"></a>
<FONT color="green">120</FONT>      <a name="line.120"></a>
<FONT color="green">121</FONT>      /**<a name="line.121"></a>
<FONT color="green">122</FONT>       * Get the Application Attempt Id for this job<a name="line.122"></a>
<FONT color="green">123</FONT>       * @param context the context to look in<a name="line.123"></a>
<FONT color="green">124</FONT>       * @return the Application Attempt Id for a given job.<a name="line.124"></a>
<FONT color="green">125</FONT>       */<a name="line.125"></a>
<FONT color="green">126</FONT>      private static int getAppAttemptId(JobContext context) {<a name="line.126"></a>
<FONT color="green">127</FONT>        return context.getConfiguration().getInt(<a name="line.127"></a>
<FONT color="green">128</FONT>            MRJobConfig.APPLICATION_ATTEMPT_ID, 0);<a name="line.128"></a>
<FONT color="green">129</FONT>      }<a name="line.129"></a>
<FONT color="green">130</FONT>      <a name="line.130"></a>
<FONT color="green">131</FONT>      /**<a name="line.131"></a>
<FONT color="green">132</FONT>       * Compute the path where the output of a given job attempt will be placed. <a name="line.132"></a>
<FONT color="green">133</FONT>       * @param context the context of the job.  This is used to get the<a name="line.133"></a>
<FONT color="green">134</FONT>       * application attempt id.<a name="line.134"></a>
<FONT color="green">135</FONT>       * @return the path to store job attempt data.<a name="line.135"></a>
<FONT color="green">136</FONT>       */<a name="line.136"></a>
<FONT color="green">137</FONT>      public Path getJobAttemptPath(JobContext context) {<a name="line.137"></a>
<FONT color="green">138</FONT>        return getJobAttemptPath(context, getOutputPath());<a name="line.138"></a>
<FONT color="green">139</FONT>      }<a name="line.139"></a>
<FONT color="green">140</FONT>      <a name="line.140"></a>
<FONT color="green">141</FONT>      /**<a name="line.141"></a>
<FONT color="green">142</FONT>       * Compute the path where the output of a given job attempt will be placed. <a name="line.142"></a>
<FONT color="green">143</FONT>       * @param context the context of the job.  This is used to get the<a name="line.143"></a>
<FONT color="green">144</FONT>       * application attempt id.<a name="line.144"></a>
<FONT color="green">145</FONT>       * @param out the output path to place these in.<a name="line.145"></a>
<FONT color="green">146</FONT>       * @return the path to store job attempt data.<a name="line.146"></a>
<FONT color="green">147</FONT>       */<a name="line.147"></a>
<FONT color="green">148</FONT>      public static Path getJobAttemptPath(JobContext context, Path out) {<a name="line.148"></a>
<FONT color="green">149</FONT>        return getJobAttemptPath(getAppAttemptId(context), out);<a name="line.149"></a>
<FONT color="green">150</FONT>      }<a name="line.150"></a>
<FONT color="green">151</FONT>      <a name="line.151"></a>
<FONT color="green">152</FONT>      /**<a name="line.152"></a>
<FONT color="green">153</FONT>       * Compute the path where the output of a given job attempt will be placed. <a name="line.153"></a>
<FONT color="green">154</FONT>       * @param appAttemptId the ID of the application attempt for this job.<a name="line.154"></a>
<FONT color="green">155</FONT>       * @return the path to store job attempt data.<a name="line.155"></a>
<FONT color="green">156</FONT>       */<a name="line.156"></a>
<FONT color="green">157</FONT>      private Path getJobAttemptPath(int appAttemptId) {<a name="line.157"></a>
<FONT color="green">158</FONT>        return getJobAttemptPath(appAttemptId, getOutputPath());<a name="line.158"></a>
<FONT color="green">159</FONT>      }<a name="line.159"></a>
<FONT color="green">160</FONT>      <a name="line.160"></a>
<FONT color="green">161</FONT>      /**<a name="line.161"></a>
<FONT color="green">162</FONT>       * Compute the path where the output of a given job attempt will be placed. <a name="line.162"></a>
<FONT color="green">163</FONT>       * @param appAttemptId the ID of the application attempt for this job.<a name="line.163"></a>
<FONT color="green">164</FONT>       * @return the path to store job attempt data.<a name="line.164"></a>
<FONT color="green">165</FONT>       */<a name="line.165"></a>
<FONT color="green">166</FONT>      private static Path getJobAttemptPath(int appAttemptId, Path out) {<a name="line.166"></a>
<FONT color="green">167</FONT>        return new Path(getPendingJobAttemptsPath(out), String.valueOf(appAttemptId));<a name="line.167"></a>
<FONT color="green">168</FONT>      }<a name="line.168"></a>
<FONT color="green">169</FONT>      <a name="line.169"></a>
<FONT color="green">170</FONT>      /**<a name="line.170"></a>
<FONT color="green">171</FONT>       * Compute the path where the output of pending task attempts are stored.<a name="line.171"></a>
<FONT color="green">172</FONT>       * @param context the context of the job with pending tasks. <a name="line.172"></a>
<FONT color="green">173</FONT>       * @return the path where the output of pending task attempts are stored.<a name="line.173"></a>
<FONT color="green">174</FONT>       */<a name="line.174"></a>
<FONT color="green">175</FONT>      private Path getPendingTaskAttemptsPath(JobContext context) {<a name="line.175"></a>
<FONT color="green">176</FONT>        return getPendingTaskAttemptsPath(context, getOutputPath());<a name="line.176"></a>
<FONT color="green">177</FONT>      }<a name="line.177"></a>
<FONT color="green">178</FONT>      <a name="line.178"></a>
<FONT color="green">179</FONT>      /**<a name="line.179"></a>
<FONT color="green">180</FONT>       * Compute the path where the output of pending task attempts are stored.<a name="line.180"></a>
<FONT color="green">181</FONT>       * @param context the context of the job with pending tasks. <a name="line.181"></a>
<FONT color="green">182</FONT>       * @return the path where the output of pending task attempts are stored.<a name="line.182"></a>
<FONT color="green">183</FONT>       */<a name="line.183"></a>
<FONT color="green">184</FONT>      private static Path getPendingTaskAttemptsPath(JobContext context, Path out) {<a name="line.184"></a>
<FONT color="green">185</FONT>        return new Path(getJobAttemptPath(context, out), PENDING_DIR_NAME);<a name="line.185"></a>
<FONT color="green">186</FONT>      }<a name="line.186"></a>
<FONT color="green">187</FONT>      <a name="line.187"></a>
<FONT color="green">188</FONT>      /**<a name="line.188"></a>
<FONT color="green">189</FONT>       * Compute the path where the output of a task attempt is stored until<a name="line.189"></a>
<FONT color="green">190</FONT>       * that task is committed.<a name="line.190"></a>
<FONT color="green">191</FONT>       * <a name="line.191"></a>
<FONT color="green">192</FONT>       * @param context the context of the task attempt.<a name="line.192"></a>
<FONT color="green">193</FONT>       * @return the path where a task attempt should be stored.<a name="line.193"></a>
<FONT color="green">194</FONT>       */<a name="line.194"></a>
<FONT color="green">195</FONT>      public Path getTaskAttemptPath(TaskAttemptContext context) {<a name="line.195"></a>
<FONT color="green">196</FONT>        return new Path(getPendingTaskAttemptsPath(context), <a name="line.196"></a>
<FONT color="green">197</FONT>            String.valueOf(context.getTaskAttemptID()));<a name="line.197"></a>
<FONT color="green">198</FONT>      }<a name="line.198"></a>
<FONT color="green">199</FONT>      <a name="line.199"></a>
<FONT color="green">200</FONT>      /**<a name="line.200"></a>
<FONT color="green">201</FONT>       * Compute the path where the output of a task attempt is stored until<a name="line.201"></a>
<FONT color="green">202</FONT>       * that task is committed.<a name="line.202"></a>
<FONT color="green">203</FONT>       * <a name="line.203"></a>
<FONT color="green">204</FONT>       * @param context the context of the task attempt.<a name="line.204"></a>
<FONT color="green">205</FONT>       * @param out The output path to put things in.<a name="line.205"></a>
<FONT color="green">206</FONT>       * @return the path where a task attempt should be stored.<a name="line.206"></a>
<FONT color="green">207</FONT>       */<a name="line.207"></a>
<FONT color="green">208</FONT>      public static Path getTaskAttemptPath(TaskAttemptContext context, Path out) {<a name="line.208"></a>
<FONT color="green">209</FONT>        return new Path(getPendingTaskAttemptsPath(context, out), <a name="line.209"></a>
<FONT color="green">210</FONT>            String.valueOf(context.getTaskAttemptID()));<a name="line.210"></a>
<FONT color="green">211</FONT>      }<a name="line.211"></a>
<FONT color="green">212</FONT>      <a name="line.212"></a>
<FONT color="green">213</FONT>      /**<a name="line.213"></a>
<FONT color="green">214</FONT>       * Compute the path where the output of a committed task is stored until<a name="line.214"></a>
<FONT color="green">215</FONT>       * the entire job is committed.<a name="line.215"></a>
<FONT color="green">216</FONT>       * @param context the context of the task attempt<a name="line.216"></a>
<FONT color="green">217</FONT>       * @return the path where the output of a committed task is stored until<a name="line.217"></a>
<FONT color="green">218</FONT>       * the entire job is committed.<a name="line.218"></a>
<FONT color="green">219</FONT>       */<a name="line.219"></a>
<FONT color="green">220</FONT>      public Path getCommittedTaskPath(TaskAttemptContext context) {<a name="line.220"></a>
<FONT color="green">221</FONT>        return getCommittedTaskPath(getAppAttemptId(context), context);<a name="line.221"></a>
<FONT color="green">222</FONT>      }<a name="line.222"></a>
<FONT color="green">223</FONT>      <a name="line.223"></a>
<FONT color="green">224</FONT>      public static Path getCommittedTaskPath(TaskAttemptContext context, Path out) {<a name="line.224"></a>
<FONT color="green">225</FONT>        return getCommittedTaskPath(getAppAttemptId(context), context, out);<a name="line.225"></a>
<FONT color="green">226</FONT>      }<a name="line.226"></a>
<FONT color="green">227</FONT>      <a name="line.227"></a>
<FONT color="green">228</FONT>      /**<a name="line.228"></a>
<FONT color="green">229</FONT>       * Compute the path where the output of a committed task is stored until the<a name="line.229"></a>
<FONT color="green">230</FONT>       * entire job is committed for a specific application attempt.<a name="line.230"></a>
<FONT color="green">231</FONT>       * @param appAttemptId the id of the application attempt to use<a name="line.231"></a>
<FONT color="green">232</FONT>       * @param context the context of any task.<a name="line.232"></a>
<FONT color="green">233</FONT>       * @return the path where the output of a committed task is stored.<a name="line.233"></a>
<FONT color="green">234</FONT>       */<a name="line.234"></a>
<FONT color="green">235</FONT>      private Path getCommittedTaskPath(int appAttemptId, TaskAttemptContext context) {<a name="line.235"></a>
<FONT color="green">236</FONT>        return new Path(getJobAttemptPath(appAttemptId),<a name="line.236"></a>
<FONT color="green">237</FONT>            String.valueOf(context.getTaskAttemptID().getTaskID()));<a name="line.237"></a>
<FONT color="green">238</FONT>      }<a name="line.238"></a>
<FONT color="green">239</FONT>      <a name="line.239"></a>
<FONT color="green">240</FONT>      private static Path getCommittedTaskPath(int appAttemptId, TaskAttemptContext context, Path out) {<a name="line.240"></a>
<FONT color="green">241</FONT>        return new Path(getJobAttemptPath(appAttemptId, out),<a name="line.241"></a>
<FONT color="green">242</FONT>            String.valueOf(context.getTaskAttemptID().getTaskID()));<a name="line.242"></a>
<FONT color="green">243</FONT>      }<a name="line.243"></a>
<FONT color="green">244</FONT>      <a name="line.244"></a>
<FONT color="green">245</FONT>      private static class CommittedTaskFilter implements PathFilter {<a name="line.245"></a>
<FONT color="green">246</FONT>        @Override<a name="line.246"></a>
<FONT color="green">247</FONT>        public boolean accept(Path path) {<a name="line.247"></a>
<FONT color="green">248</FONT>          return !PENDING_DIR_NAME.equals(path.getName());<a name="line.248"></a>
<FONT color="green">249</FONT>        }<a name="line.249"></a>
<FONT color="green">250</FONT>      }<a name="line.250"></a>
<FONT color="green">251</FONT>      <a name="line.251"></a>
<FONT color="green">252</FONT>      /**<a name="line.252"></a>
<FONT color="green">253</FONT>       * Get a list of all paths where output from committed tasks are stored.<a name="line.253"></a>
<FONT color="green">254</FONT>       * @param context the context of the current job<a name="line.254"></a>
<FONT color="green">255</FONT>       * @return the list of these Paths/FileStatuses. <a name="line.255"></a>
<FONT color="green">256</FONT>       * @throws IOException<a name="line.256"></a>
<FONT color="green">257</FONT>       */<a name="line.257"></a>
<FONT color="green">258</FONT>      private FileStatus[] getAllCommittedTaskPaths(JobContext context) <a name="line.258"></a>
<FONT color="green">259</FONT>        throws IOException {<a name="line.259"></a>
<FONT color="green">260</FONT>        Path jobAttemptPath = getJobAttemptPath(context);<a name="line.260"></a>
<FONT color="green">261</FONT>        FileSystem fs = jobAttemptPath.getFileSystem(context.getConfiguration());<a name="line.261"></a>
<FONT color="green">262</FONT>        return fs.listStatus(jobAttemptPath, new CommittedTaskFilter());<a name="line.262"></a>
<FONT color="green">263</FONT>      }<a name="line.263"></a>
<FONT color="green">264</FONT>      <a name="line.264"></a>
<FONT color="green">265</FONT>      /**<a name="line.265"></a>
<FONT color="green">266</FONT>       * Get the directory that the task should write results into.<a name="line.266"></a>
<FONT color="green">267</FONT>       * @return the work directory<a name="line.267"></a>
<FONT color="green">268</FONT>       * @throws IOException<a name="line.268"></a>
<FONT color="green">269</FONT>       */<a name="line.269"></a>
<FONT color="green">270</FONT>      public Path getWorkPath() throws IOException {<a name="line.270"></a>
<FONT color="green">271</FONT>        return workPath;<a name="line.271"></a>
<FONT color="green">272</FONT>      }<a name="line.272"></a>
<FONT color="green">273</FONT>    <a name="line.273"></a>
<FONT color="green">274</FONT>      /**<a name="line.274"></a>
<FONT color="green">275</FONT>       * Create the temporary directory that is the root of all of the task <a name="line.275"></a>
<FONT color="green">276</FONT>       * work directories.<a name="line.276"></a>
<FONT color="green">277</FONT>       * @param context the job's context<a name="line.277"></a>
<FONT color="green">278</FONT>       */<a name="line.278"></a>
<FONT color="green">279</FONT>      public void setupJob(JobContext context) throws IOException {<a name="line.279"></a>
<FONT color="green">280</FONT>        if (hasOutputPath()) {<a name="line.280"></a>
<FONT color="green">281</FONT>          Path pendingJobAttemptsPath = getPendingJobAttemptsPath();<a name="line.281"></a>
<FONT color="green">282</FONT>          FileSystem fs = pendingJobAttemptsPath.getFileSystem(<a name="line.282"></a>
<FONT color="green">283</FONT>              context.getConfiguration());<a name="line.283"></a>
<FONT color="green">284</FONT>          if (!fs.mkdirs(pendingJobAttemptsPath)) {<a name="line.284"></a>
<FONT color="green">285</FONT>            LOG.error("Mkdirs failed to create " + pendingJobAttemptsPath);<a name="line.285"></a>
<FONT color="green">286</FONT>          }<a name="line.286"></a>
<FONT color="green">287</FONT>        } else {<a name="line.287"></a>
<FONT color="green">288</FONT>          LOG.warn("Output Path is null in setupJob()");<a name="line.288"></a>
<FONT color="green">289</FONT>        }<a name="line.289"></a>
<FONT color="green">290</FONT>      }<a name="line.290"></a>
<FONT color="green">291</FONT>      <a name="line.291"></a>
<FONT color="green">292</FONT>      /**<a name="line.292"></a>
<FONT color="green">293</FONT>       * The job has completed so move all committed tasks to the final output dir.<a name="line.293"></a>
<FONT color="green">294</FONT>       * Delete the temporary directory, including all of the work directories.<a name="line.294"></a>
<FONT color="green">295</FONT>       * Create a _SUCCESS file to make it as successful.<a name="line.295"></a>
<FONT color="green">296</FONT>       * @param context the job's context<a name="line.296"></a>
<FONT color="green">297</FONT>       */<a name="line.297"></a>
<FONT color="green">298</FONT>      public void commitJob(JobContext context) throws IOException {<a name="line.298"></a>
<FONT color="green">299</FONT>        if (hasOutputPath()) {<a name="line.299"></a>
<FONT color="green">300</FONT>          Path finalOutput = getOutputPath();<a name="line.300"></a>
<FONT color="green">301</FONT>          FileSystem fs = finalOutput.getFileSystem(context.getConfiguration());<a name="line.301"></a>
<FONT color="green">302</FONT>          for(FileStatus stat: getAllCommittedTaskPaths(context)) {<a name="line.302"></a>
<FONT color="green">303</FONT>            mergePaths(fs, stat, finalOutput);<a name="line.303"></a>
<FONT color="green">304</FONT>          }<a name="line.304"></a>
<FONT color="green">305</FONT>    <a name="line.305"></a>
<FONT color="green">306</FONT>          // delete the _temporary folder and create a _done file in the o/p folder<a name="line.306"></a>
<FONT color="green">307</FONT>          cleanupJob(context);<a name="line.307"></a>
<FONT color="green">308</FONT>          // True if the job requires output.dir marked on successful job.<a name="line.308"></a>
<FONT color="green">309</FONT>          // Note that by default it is set to true.<a name="line.309"></a>
<FONT color="green">310</FONT>          if (context.getConfiguration().getBoolean(SUCCESSFUL_JOB_OUTPUT_DIR_MARKER, true)) {<a name="line.310"></a>
<FONT color="green">311</FONT>            Path markerPath = new Path(outputPath, SUCCEEDED_FILE_NAME);<a name="line.311"></a>
<FONT color="green">312</FONT>            fs.create(markerPath).close();<a name="line.312"></a>
<FONT color="green">313</FONT>          }<a name="line.313"></a>
<FONT color="green">314</FONT>        } else {<a name="line.314"></a>
<FONT color="green">315</FONT>          LOG.warn("Output Path is null in commitJob()");<a name="line.315"></a>
<FONT color="green">316</FONT>        }<a name="line.316"></a>
<FONT color="green">317</FONT>      }<a name="line.317"></a>
<FONT color="green">318</FONT>    <a name="line.318"></a>
<FONT color="green">319</FONT>      /**<a name="line.319"></a>
<FONT color="green">320</FONT>       * Merge two paths together.  Anything in from will be moved into to, if there<a name="line.320"></a>
<FONT color="green">321</FONT>       * are any name conflicts while merging the files or directories in from win.<a name="line.321"></a>
<FONT color="green">322</FONT>       * @param fs the File System to use<a name="line.322"></a>
<FONT color="green">323</FONT>       * @param from the path data is coming from.<a name="line.323"></a>
<FONT color="green">324</FONT>       * @param to the path data is going to.<a name="line.324"></a>
<FONT color="green">325</FONT>       * @throws IOException on any error<a name="line.325"></a>
<FONT color="green">326</FONT>       */<a name="line.326"></a>
<FONT color="green">327</FONT>      private static void mergePaths(FileSystem fs, final FileStatus from,<a name="line.327"></a>
<FONT color="green">328</FONT>          final Path to)<a name="line.328"></a>
<FONT color="green">329</FONT>        throws IOException {<a name="line.329"></a>
<FONT color="green">330</FONT>         LOG.debug("Merging data from "+from+" to "+to);<a name="line.330"></a>
<FONT color="green">331</FONT>         if(from.isFile()) {<a name="line.331"></a>
<FONT color="green">332</FONT>           if(fs.exists(to)) {<a name="line.332"></a>
<FONT color="green">333</FONT>             if(!fs.delete(to, true)) {<a name="line.333"></a>
<FONT color="green">334</FONT>               throw new IOException("Failed to delete "+to);<a name="line.334"></a>
<FONT color="green">335</FONT>             }<a name="line.335"></a>
<FONT color="green">336</FONT>           }<a name="line.336"></a>
<FONT color="green">337</FONT>    <a name="line.337"></a>
<FONT color="green">338</FONT>           if(!fs.rename(from.getPath(), to)) {<a name="line.338"></a>
<FONT color="green">339</FONT>             throw new IOException("Failed to rename "+from+" to "+to);<a name="line.339"></a>
<FONT color="green">340</FONT>           }<a name="line.340"></a>
<FONT color="green">341</FONT>         } else if(from.isDirectory()) {<a name="line.341"></a>
<FONT color="green">342</FONT>           if(fs.exists(to)) {<a name="line.342"></a>
<FONT color="green">343</FONT>             FileStatus toStat = fs.getFileStatus(to);<a name="line.343"></a>
<FONT color="green">344</FONT>             if(!toStat.isDirectory()) {<a name="line.344"></a>
<FONT color="green">345</FONT>               if(!fs.delete(to, true)) {<a name="line.345"></a>
<FONT color="green">346</FONT>                 throw new IOException("Failed to delete "+to);<a name="line.346"></a>
<FONT color="green">347</FONT>               }<a name="line.347"></a>
<FONT color="green">348</FONT>               if(!fs.rename(from.getPath(), to)) {<a name="line.348"></a>
<FONT color="green">349</FONT>                 throw new IOException("Failed to rename "+from+" to "+to);<a name="line.349"></a>
<FONT color="green">350</FONT>               }<a name="line.350"></a>
<FONT color="green">351</FONT>             } else {<a name="line.351"></a>
<FONT color="green">352</FONT>               //It is a directory so merge everything in the directories<a name="line.352"></a>
<FONT color="green">353</FONT>               for(FileStatus subFrom: fs.listStatus(from.getPath())) {<a name="line.353"></a>
<FONT color="green">354</FONT>                 Path subTo = new Path(to, subFrom.getPath().getName());<a name="line.354"></a>
<FONT color="green">355</FONT>                 mergePaths(fs, subFrom, subTo);<a name="line.355"></a>
<FONT color="green">356</FONT>               }<a name="line.356"></a>
<FONT color="green">357</FONT>             }<a name="line.357"></a>
<FONT color="green">358</FONT>           } else {<a name="line.358"></a>
<FONT color="green">359</FONT>             //it does not exist just rename<a name="line.359"></a>
<FONT color="green">360</FONT>             if(!fs.rename(from.getPath(), to)) {<a name="line.360"></a>
<FONT color="green">361</FONT>               throw new IOException("Failed to rename "+from+" to "+to);<a name="line.361"></a>
<FONT color="green">362</FONT>             }<a name="line.362"></a>
<FONT color="green">363</FONT>           }<a name="line.363"></a>
<FONT color="green">364</FONT>         }<a name="line.364"></a>
<FONT color="green">365</FONT>      }<a name="line.365"></a>
<FONT color="green">366</FONT>    <a name="line.366"></a>
<FONT color="green">367</FONT>      @Override<a name="line.367"></a>
<FONT color="green">368</FONT>      @Deprecated<a name="line.368"></a>
<FONT color="green">369</FONT>      public void cleanupJob(JobContext context) throws IOException {<a name="line.369"></a>
<FONT color="green">370</FONT>        if (hasOutputPath()) {<a name="line.370"></a>
<FONT color="green">371</FONT>          Path pendingJobAttemptsPath = getPendingJobAttemptsPath();<a name="line.371"></a>
<FONT color="green">372</FONT>          FileSystem fs = pendingJobAttemptsPath<a name="line.372"></a>
<FONT color="green">373</FONT>              .getFileSystem(context.getConfiguration());<a name="line.373"></a>
<FONT color="green">374</FONT>          fs.delete(pendingJobAttemptsPath, true);<a name="line.374"></a>
<FONT color="green">375</FONT>        } else {<a name="line.375"></a>
<FONT color="green">376</FONT>          LOG.warn("Output Path is null in cleanupJob()");<a name="line.376"></a>
<FONT color="green">377</FONT>        }<a name="line.377"></a>
<FONT color="green">378</FONT>      }<a name="line.378"></a>
<FONT color="green">379</FONT>    <a name="line.379"></a>
<FONT color="green">380</FONT>      /**<a name="line.380"></a>
<FONT color="green">381</FONT>       * Delete the temporary directory, including all of the work directories.<a name="line.381"></a>
<FONT color="green">382</FONT>       * @param context the job's context<a name="line.382"></a>
<FONT color="green">383</FONT>       */<a name="line.383"></a>
<FONT color="green">384</FONT>      @Override<a name="line.384"></a>
<FONT color="green">385</FONT>      public void abortJob(JobContext context, JobStatus.State state) <a name="line.385"></a>
<FONT color="green">386</FONT>      throws IOException {<a name="line.386"></a>
<FONT color="green">387</FONT>        // delete the _temporary folder<a name="line.387"></a>
<FONT color="green">388</FONT>        cleanupJob(context);<a name="line.388"></a>
<FONT color="green">389</FONT>      }<a name="line.389"></a>
<FONT color="green">390</FONT>      <a name="line.390"></a>
<FONT color="green">391</FONT>      /**<a name="line.391"></a>
<FONT color="green">392</FONT>       * No task setup required.<a name="line.392"></a>
<FONT color="green">393</FONT>       */<a name="line.393"></a>
<FONT color="green">394</FONT>      @Override<a name="line.394"></a>
<FONT color="green">395</FONT>      public void setupTask(TaskAttemptContext context) throws IOException {<a name="line.395"></a>
<FONT color="green">396</FONT>        // FileOutputCommitter's setupTask doesn't do anything. Because the<a name="line.396"></a>
<FONT color="green">397</FONT>        // temporary task directory is created on demand when the <a name="line.397"></a>
<FONT color="green">398</FONT>        // task is writing.<a name="line.398"></a>
<FONT color="green">399</FONT>      }<a name="line.399"></a>
<FONT color="green">400</FONT>    <a name="line.400"></a>
<FONT color="green">401</FONT>      /**<a name="line.401"></a>
<FONT color="green">402</FONT>       * Move the files from the work directory to the job output directory<a name="line.402"></a>
<FONT color="green">403</FONT>       * @param context the task context<a name="line.403"></a>
<FONT color="green">404</FONT>       */<a name="line.404"></a>
<FONT color="green">405</FONT>      @Override<a name="line.405"></a>
<FONT color="green">406</FONT>      public void commitTask(TaskAttemptContext context) <a name="line.406"></a>
<FONT color="green">407</FONT>      throws IOException {<a name="line.407"></a>
<FONT color="green">408</FONT>        commitTask(context, null);<a name="line.408"></a>
<FONT color="green">409</FONT>      }<a name="line.409"></a>
<FONT color="green">410</FONT>    <a name="line.410"></a>
<FONT color="green">411</FONT>      @Private<a name="line.411"></a>
<FONT color="green">412</FONT>      public void commitTask(TaskAttemptContext context, Path taskAttemptPath) <a name="line.412"></a>
<FONT color="green">413</FONT>      throws IOException {<a name="line.413"></a>
<FONT color="green">414</FONT>        TaskAttemptID attemptId = context.getTaskAttemptID();<a name="line.414"></a>
<FONT color="green">415</FONT>        if (hasOutputPath()) {<a name="line.415"></a>
<FONT color="green">416</FONT>          context.progress();<a name="line.416"></a>
<FONT color="green">417</FONT>          if(taskAttemptPath == null) {<a name="line.417"></a>
<FONT color="green">418</FONT>            taskAttemptPath = getTaskAttemptPath(context);<a name="line.418"></a>
<FONT color="green">419</FONT>          }<a name="line.419"></a>
<FONT color="green">420</FONT>          Path committedTaskPath = getCommittedTaskPath(context);<a name="line.420"></a>
<FONT color="green">421</FONT>          FileSystem fs = taskAttemptPath.getFileSystem(context.getConfiguration());<a name="line.421"></a>
<FONT color="green">422</FONT>          if (fs.exists(taskAttemptPath)) {<a name="line.422"></a>
<FONT color="green">423</FONT>            if(fs.exists(committedTaskPath)) {<a name="line.423"></a>
<FONT color="green">424</FONT>              if(!fs.delete(committedTaskPath, true)) {<a name="line.424"></a>
<FONT color="green">425</FONT>                throw new IOException("Could not delete " + committedTaskPath);<a name="line.425"></a>
<FONT color="green">426</FONT>              }<a name="line.426"></a>
<FONT color="green">427</FONT>            }<a name="line.427"></a>
<FONT color="green">428</FONT>            if(!fs.rename(taskAttemptPath, committedTaskPath)) {<a name="line.428"></a>
<FONT color="green">429</FONT>              throw new IOException("Could not rename " + taskAttemptPath + " to "<a name="line.429"></a>
<FONT color="green">430</FONT>                  + committedTaskPath);<a name="line.430"></a>
<FONT color="green">431</FONT>            }<a name="line.431"></a>
<FONT color="green">432</FONT>            LOG.info("Saved output of task '" + attemptId + "' to " + <a name="line.432"></a>
<FONT color="green">433</FONT>                committedTaskPath);<a name="line.433"></a>
<FONT color="green">434</FONT>          } else {<a name="line.434"></a>
<FONT color="green">435</FONT>            LOG.warn("No Output found for " + attemptId);<a name="line.435"></a>
<FONT color="green">436</FONT>          }<a name="line.436"></a>
<FONT color="green">437</FONT>        } else {<a name="line.437"></a>
<FONT color="green">438</FONT>          LOG.warn("Output Path is null in commitTask()");<a name="line.438"></a>
<FONT color="green">439</FONT>        }<a name="line.439"></a>
<FONT color="green">440</FONT>      }<a name="line.440"></a>
<FONT color="green">441</FONT>    <a name="line.441"></a>
<FONT color="green">442</FONT>      /**<a name="line.442"></a>
<FONT color="green">443</FONT>       * Delete the work directory<a name="line.443"></a>
<FONT color="green">444</FONT>       * @throws IOException <a name="line.444"></a>
<FONT color="green">445</FONT>       */<a name="line.445"></a>
<FONT color="green">446</FONT>      @Override<a name="line.446"></a>
<FONT color="green">447</FONT>      public void abortTask(TaskAttemptContext context) throws IOException {<a name="line.447"></a>
<FONT color="green">448</FONT>        abortTask(context, null);<a name="line.448"></a>
<FONT color="green">449</FONT>      }<a name="line.449"></a>
<FONT color="green">450</FONT>    <a name="line.450"></a>
<FONT color="green">451</FONT>      @Private<a name="line.451"></a>
<FONT color="green">452</FONT>      public void abortTask(TaskAttemptContext context, Path taskAttemptPath) throws IOException {<a name="line.452"></a>
<FONT color="green">453</FONT>        if (hasOutputPath()) { <a name="line.453"></a>
<FONT color="green">454</FONT>          context.progress();<a name="line.454"></a>
<FONT color="green">455</FONT>          if(taskAttemptPath == null) {<a name="line.455"></a>
<FONT color="green">456</FONT>            taskAttemptPath = getTaskAttemptPath(context);<a name="line.456"></a>
<FONT color="green">457</FONT>          }<a name="line.457"></a>
<FONT color="green">458</FONT>          FileSystem fs = taskAttemptPath.getFileSystem(context.getConfiguration());<a name="line.458"></a>
<FONT color="green">459</FONT>          if(!fs.delete(taskAttemptPath, true)) {<a name="line.459"></a>
<FONT color="green">460</FONT>            LOG.warn("Could not delete "+taskAttemptPath);<a name="line.460"></a>
<FONT color="green">461</FONT>          }<a name="line.461"></a>
<FONT color="green">462</FONT>        } else {<a name="line.462"></a>
<FONT color="green">463</FONT>          LOG.warn("Output Path is null in abortTask()");<a name="line.463"></a>
<FONT color="green">464</FONT>        }<a name="line.464"></a>
<FONT color="green">465</FONT>      }<a name="line.465"></a>
<FONT color="green">466</FONT>    <a name="line.466"></a>
<FONT color="green">467</FONT>      /**<a name="line.467"></a>
<FONT color="green">468</FONT>       * Did this task write any files in the work directory?<a name="line.468"></a>
<FONT color="green">469</FONT>       * @param context the task's context<a name="line.469"></a>
<FONT color="green">470</FONT>       */<a name="line.470"></a>
<FONT color="green">471</FONT>      @Override<a name="line.471"></a>
<FONT color="green">472</FONT>      public boolean needsTaskCommit(TaskAttemptContext context<a name="line.472"></a>
<FONT color="green">473</FONT>                                     ) throws IOException {<a name="line.473"></a>
<FONT color="green">474</FONT>        return needsTaskCommit(context, null);<a name="line.474"></a>
<FONT color="green">475</FONT>      }<a name="line.475"></a>
<FONT color="green">476</FONT>    <a name="line.476"></a>
<FONT color="green">477</FONT>      @Private<a name="line.477"></a>
<FONT color="green">478</FONT>      public boolean needsTaskCommit(TaskAttemptContext context, Path taskAttemptPath<a name="line.478"></a>
<FONT color="green">479</FONT>        ) throws IOException {<a name="line.479"></a>
<FONT color="green">480</FONT>        if(hasOutputPath()) {<a name="line.480"></a>
<FONT color="green">481</FONT>          if(taskAttemptPath == null) {<a name="line.481"></a>
<FONT color="green">482</FONT>            taskAttemptPath = getTaskAttemptPath(context);<a name="line.482"></a>
<FONT color="green">483</FONT>          }<a name="line.483"></a>
<FONT color="green">484</FONT>          FileSystem fs = taskAttemptPath.getFileSystem(context.getConfiguration());<a name="line.484"></a>
<FONT color="green">485</FONT>          return fs.exists(taskAttemptPath);<a name="line.485"></a>
<FONT color="green">486</FONT>        }<a name="line.486"></a>
<FONT color="green">487</FONT>        return false;<a name="line.487"></a>
<FONT color="green">488</FONT>      }<a name="line.488"></a>
<FONT color="green">489</FONT>    <a name="line.489"></a>
<FONT color="green">490</FONT>      @Override<a name="line.490"></a>
<FONT color="green">491</FONT>      public boolean isRecoverySupported() {<a name="line.491"></a>
<FONT color="green">492</FONT>        return true;<a name="line.492"></a>
<FONT color="green">493</FONT>      }<a name="line.493"></a>
<FONT color="green">494</FONT>      <a name="line.494"></a>
<FONT color="green">495</FONT>      @Override<a name="line.495"></a>
<FONT color="green">496</FONT>      public void recoverTask(TaskAttemptContext context)<a name="line.496"></a>
<FONT color="green">497</FONT>          throws IOException {<a name="line.497"></a>
<FONT color="green">498</FONT>        if(hasOutputPath()) {<a name="line.498"></a>
<FONT color="green">499</FONT>          context.progress();<a name="line.499"></a>
<FONT color="green">500</FONT>          TaskAttemptID attemptId = context.getTaskAttemptID();<a name="line.500"></a>
<FONT color="green">501</FONT>          int previousAttempt = getAppAttemptId(context) - 1;<a name="line.501"></a>
<FONT color="green">502</FONT>          if (previousAttempt &lt; 0) {<a name="line.502"></a>
<FONT color="green">503</FONT>            throw new IOException ("Cannot recover task output for first attempt...");<a name="line.503"></a>
<FONT color="green">504</FONT>          }<a name="line.504"></a>
<FONT color="green">505</FONT>    <a name="line.505"></a>
<FONT color="green">506</FONT>          Path committedTaskPath = getCommittedTaskPath(context);<a name="line.506"></a>
<FONT color="green">507</FONT>          Path previousCommittedTaskPath = getCommittedTaskPath(<a name="line.507"></a>
<FONT color="green">508</FONT>              previousAttempt, context);<a name="line.508"></a>
<FONT color="green">509</FONT>          FileSystem fs = committedTaskPath.getFileSystem(context.getConfiguration());<a name="line.509"></a>
<FONT color="green">510</FONT>    <a name="line.510"></a>
<FONT color="green">511</FONT>          LOG.debug("Trying to recover task from " + previousCommittedTaskPath <a name="line.511"></a>
<FONT color="green">512</FONT>              + " into " + committedTaskPath);<a name="line.512"></a>
<FONT color="green">513</FONT>          if (fs.exists(previousCommittedTaskPath)) {<a name="line.513"></a>
<FONT color="green">514</FONT>            if(fs.exists(committedTaskPath)) {<a name="line.514"></a>
<FONT color="green">515</FONT>              if(!fs.delete(committedTaskPath, true)) {<a name="line.515"></a>
<FONT color="green">516</FONT>                throw new IOException("Could not delete "+committedTaskPath);<a name="line.516"></a>
<FONT color="green">517</FONT>              }<a name="line.517"></a>
<FONT color="green">518</FONT>            }<a name="line.518"></a>
<FONT color="green">519</FONT>            //Rename can fail if the parent directory does not yet exist.<a name="line.519"></a>
<FONT color="green">520</FONT>            Path committedParent = committedTaskPath.getParent();<a name="line.520"></a>
<FONT color="green">521</FONT>            fs.mkdirs(committedParent);<a name="line.521"></a>
<FONT color="green">522</FONT>            if(!fs.rename(previousCommittedTaskPath, committedTaskPath)) {<a name="line.522"></a>
<FONT color="green">523</FONT>              throw new IOException("Could not rename " + previousCommittedTaskPath +<a name="line.523"></a>
<FONT color="green">524</FONT>                  " to " + committedTaskPath);<a name="line.524"></a>
<FONT color="green">525</FONT>            }<a name="line.525"></a>
<FONT color="green">526</FONT>            LOG.info("Saved output of " + attemptId + " to " + committedTaskPath);<a name="line.526"></a>
<FONT color="green">527</FONT>          } else {<a name="line.527"></a>
<FONT color="green">528</FONT>            LOG.warn(attemptId+" had no output to recover.");<a name="line.528"></a>
<FONT color="green">529</FONT>          }<a name="line.529"></a>
<FONT color="green">530</FONT>        } else {<a name="line.530"></a>
<FONT color="green">531</FONT>          LOG.warn("Output Path is null in recoverTask()");<a name="line.531"></a>
<FONT color="green">532</FONT>        }<a name="line.532"></a>
<FONT color="green">533</FONT>      }<a name="line.533"></a>
<FONT color="green">534</FONT>    }<a name="line.534"></a>




























































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