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7FileOutputCommitter (Hadoop 0.20.1 API)
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79  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;<A HREF="#field_summary">FIELD</A>&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
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91org.apache.hadoop.mapred</FONT>
92<BR>
93Class FileOutputCommitter</H2>
94<PRE>
95<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
96  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/hadoop/mapreduce/OutputCommitter.html" title="class in org.apache.hadoop.mapreduce">org.apache.hadoop.mapreduce.OutputCommitter</A>
97      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">org.apache.hadoop.mapred.OutputCommitter</A>
98          <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.FileOutputCommitter</B>
99</PRE>
100<HR>
101<DL>
102<DT><PRE>public class <B>FileOutputCommitter</B><DT>extends <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></DL>
103</PRE>
104
105<P>
106An <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred"><CODE>OutputCommitter</CODE></A> that commits files specified
107 in job output directory i.e. ${mapred.output.dir}.
108<P>
109
110<P>
111<HR>
112
113<P>
114<!-- =========== FIELD SUMMARY =========== -->
115
116<A NAME="field_summary"><!-- --></A>
117<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
118<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
119<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
120<B>Field Summary</B></FONT></TH>
121</TR>
122<TR BGCOLOR="white" CLASS="TableRowColor">
123<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
124<CODE>static&nbsp;org.apache.commons.logging.Log</CODE></FONT></TD>
125<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#LOG">LOG</A></B></CODE>
126
127<BR>
128&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
129</TR>
130<TR BGCOLOR="white" CLASS="TableRowColor">
131<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
132<CODE>static&nbsp;<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
133<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#TEMP_DIR_NAME">TEMP_DIR_NAME</A></B></CODE>
134
135<BR>
136&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Temporary directory name</TD>
137</TR>
138</TABLE>
139&nbsp;
140<!-- ======== CONSTRUCTOR SUMMARY ======== -->
141
142<A NAME="constructor_summary"><!-- --></A>
143<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
144<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
145<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
146<B>Constructor Summary</B></FONT></TH>
147</TR>
148<TR BGCOLOR="white" CLASS="TableRowColor">
149<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#FileOutputCommitter()">FileOutputCommitter</A></B>()</CODE>
150
151<BR>
152&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
153</TR>
154</TABLE>
155&nbsp;
156<!-- ========== METHOD SUMMARY =========== -->
157
158<A NAME="method_summary"><!-- --></A>
159<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
160<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
161<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
162<B>Method Summary</B></FONT></TH>
163</TR>
164<TR BGCOLOR="white" CLASS="TableRowColor">
165<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
166<CODE>&nbsp;void</CODE></FONT></TD>
167<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#abortTask(org.apache.hadoop.mapred.TaskAttemptContext)">abortTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A>&nbsp;context)</CODE>
168
169<BR>
170&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Discard the task output</TD>
171</TR>
172<TR BGCOLOR="white" CLASS="TableRowColor">
173<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
174<CODE>&nbsp;void</CODE></FONT></TD>
175<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#cleanupJob(org.apache.hadoop.mapred.JobContext)">cleanupJob</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A>&nbsp;context)</CODE>
176
177<BR>
178&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For cleaning up the job's output after job completion</TD>
179</TR>
180<TR BGCOLOR="white" CLASS="TableRowColor">
181<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
182<CODE>&nbsp;void</CODE></FONT></TD>
183<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#commitTask(org.apache.hadoop.mapred.TaskAttemptContext)">commitTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A>&nbsp;context)</CODE>
184
185<BR>
186&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;To promote the task's temporary output to final output location
187 
188 The task's output is moved to the job's output directory.</TD>
189</TR>
190<TR BGCOLOR="white" CLASS="TableRowColor">
191<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
192<CODE>&nbsp;boolean</CODE></FONT></TD>
193<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#needsTaskCommit(org.apache.hadoop.mapred.TaskAttemptContext)">needsTaskCommit</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A>&nbsp;context)</CODE>
194
195<BR>
196&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Check whether task needs a commit</TD>
197</TR>
198<TR BGCOLOR="white" CLASS="TableRowColor">
199<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
200<CODE>&nbsp;void</CODE></FONT></TD>
201<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#setupJob(org.apache.hadoop.mapred.JobContext)">setupJob</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A>&nbsp;context)</CODE>
202
203<BR>
204&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;For the framework to setup the job output during initialization</TD>
205</TR>
206<TR BGCOLOR="white" CLASS="TableRowColor">
207<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
208<CODE>&nbsp;void</CODE></FONT></TD>
209<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/FileOutputCommitter.html#setupTask(org.apache.hadoop.mapred.TaskAttemptContext)">setupTask</A></B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A>&nbsp;context)</CODE>
210
211<BR>
212&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets up output for the task.</TD>
213</TR>
214</TABLE>
215&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapred.OutputCommitter"><!-- --></A>
216<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
217<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
218<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapred.<A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></B></TH>
219</TR>
220<TR BGCOLOR="white" CLASS="TableRowColor">
221<TD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#abortTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">abortTask</A>, <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#cleanupJob(org.apache.hadoop.mapreduce.JobContext)">cleanupJob</A>, <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#commitTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">commitTask</A>, <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#needsTaskCommit(org.apache.hadoop.mapreduce.TaskAttemptContext)">needsTaskCommit</A>, <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupJob(org.apache.hadoop.mapreduce.JobContext)">setupJob</A>, <A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupTask(org.apache.hadoop.mapreduce.TaskAttemptContext)">setupTask</A></CODE></TD>
222</TR>
223</TABLE>
224&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
225<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
226<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
227<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH>
228</TR>
229<TR BGCOLOR="white" CLASS="TableRowColor">
230<TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD>
231</TR>
232</TABLE>
233&nbsp;
234<P>
235
236<!-- ============ FIELD DETAIL =========== -->
237
238<A NAME="field_detail"><!-- --></A>
239<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
240<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
241<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
242<B>Field Detail</B></FONT></TH>
243</TR>
244</TABLE>
245
246<A NAME="LOG"><!-- --></A><H3>
247LOG</H3>
248<PRE>
249public static final org.apache.commons.logging.Log <B>LOG</B></PRE>
250<DL>
251<DL>
252</DL>
253</DL>
254<HR>
255
256<A NAME="TEMP_DIR_NAME"><!-- --></A><H3>
257TEMP_DIR_NAME</H3>
258<PRE>
259public static final <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>TEMP_DIR_NAME</B></PRE>
260<DL>
261<DD>Temporary directory name
262<P>
263<DL>
264<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.apache.hadoop.mapred.FileOutputCommitter.TEMP_DIR_NAME">Constant Field Values</A></DL>
265</DL>
266
267<!-- ========= CONSTRUCTOR DETAIL ======== -->
268
269<A NAME="constructor_detail"><!-- --></A>
270<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
271<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
272<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
273<B>Constructor Detail</B></FONT></TH>
274</TR>
275</TABLE>
276
277<A NAME="FileOutputCommitter()"><!-- --></A><H3>
278FileOutputCommitter</H3>
279<PRE>
280public <B>FileOutputCommitter</B>()</PRE>
281<DL>
282</DL>
283
284<!-- ============ METHOD DETAIL ========== -->
285
286<A NAME="method_detail"><!-- --></A>
287<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
288<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
289<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
290<B>Method Detail</B></FONT></TH>
291</TR>
292</TABLE>
293
294<A NAME="setupJob(org.apache.hadoop.mapred.JobContext)"><!-- --></A><H3>
295setupJob</H3>
296<PRE>
297public void <B>setupJob</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A>&nbsp;context)
298              throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
299<DL>
300<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupJob(org.apache.hadoop.mapred.JobContext)">OutputCommitter</A></CODE></B></DD>
301<DD>For the framework to setup the job output during initialization
302<P>
303<DD><DL>
304<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupJob(org.apache.hadoop.mapred.JobContext)">setupJob</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></CODE></DL>
305</DD>
306<DD><DL>
307<DT><B>Parameters:</B><DD><CODE>context</CODE> - Context of the job whose output is being written.
308<DT><B>Throws:</B>
309<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if temporary output could not be created</DL>
310</DD>
311</DL>
312<HR>
313
314<A NAME="cleanupJob(org.apache.hadoop.mapred.JobContext)"><!-- --></A><H3>
315cleanupJob</H3>
316<PRE>
317public void <B>cleanupJob</B>(<A HREF="../../../../org/apache/hadoop/mapred/JobContext.html" title="class in org.apache.hadoop.mapred">JobContext</A>&nbsp;context)
318                throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
319<DL>
320<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#cleanupJob(org.apache.hadoop.mapred.JobContext)">OutputCommitter</A></CODE></B></DD>
321<DD>For cleaning up the job's output after job completion
322<P>
323<DD><DL>
324<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#cleanupJob(org.apache.hadoop.mapred.JobContext)">cleanupJob</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></CODE></DL>
325</DD>
326<DD><DL>
327<DT><B>Parameters:</B><DD><CODE>context</CODE> - Context of the job whose output is being written.
328<DT><B>Throws:</B>
329<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
330</DD>
331</DL>
332<HR>
333
334<A NAME="setupTask(org.apache.hadoop.mapred.TaskAttemptContext)"><!-- --></A><H3>
335setupTask</H3>
336<PRE>
337public void <B>setupTask</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A>&nbsp;context)
338               throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
339<DL>
340<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupTask(org.apache.hadoop.mapred.TaskAttemptContext)">OutputCommitter</A></CODE></B></DD>
341<DD>Sets up output for the task.
342<P>
343<DD><DL>
344<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#setupTask(org.apache.hadoop.mapred.TaskAttemptContext)">setupTask</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></CODE></DL>
345</DD>
346<DD><DL>
347<DT><B>Parameters:</B><DD><CODE>context</CODE> - Context of the task whose output is being written.
348<DT><B>Throws:</B>
349<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
350</DD>
351</DL>
352<HR>
353
354<A NAME="commitTask(org.apache.hadoop.mapred.TaskAttemptContext)"><!-- --></A><H3>
355commitTask</H3>
356<PRE>
357public void <B>commitTask</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A>&nbsp;context)
358                throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
359<DL>
360<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#commitTask(org.apache.hadoop.mapred.TaskAttemptContext)">OutputCommitter</A></CODE></B></DD>
361<DD>To promote the task's temporary output to final output location
362 
363 The task's output is moved to the job's output directory.
364<P>
365<DD><DL>
366<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#commitTask(org.apache.hadoop.mapred.TaskAttemptContext)">commitTask</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></CODE></DL>
367</DD>
368<DD><DL>
369<DT><B>Parameters:</B><DD><CODE>context</CODE> - Context of the task whose output is being written.
370<DT><B>Throws:</B>
371<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE> - if commit is not</DL>
372</DD>
373</DL>
374<HR>
375
376<A NAME="abortTask(org.apache.hadoop.mapred.TaskAttemptContext)"><!-- --></A><H3>
377abortTask</H3>
378<PRE>
379public void <B>abortTask</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A>&nbsp;context)
380               throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
381<DL>
382<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#abortTask(org.apache.hadoop.mapred.TaskAttemptContext)">OutputCommitter</A></CODE></B></DD>
383<DD>Discard the task output
384<P>
385<DD><DL>
386<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#abortTask(org.apache.hadoop.mapred.TaskAttemptContext)">abortTask</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></CODE></DL>
387</DD>
388<DD><DL>
389
390<DT><B>Throws:</B>
391<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
392</DD>
393</DL>
394<HR>
395
396<A NAME="needsTaskCommit(org.apache.hadoop.mapred.TaskAttemptContext)"><!-- --></A><H3>
397needsTaskCommit</H3>
398<PRE>
399public boolean <B>needsTaskCommit</B>(<A HREF="../../../../org/apache/hadoop/mapred/TaskAttemptContext.html" title="class in org.apache.hadoop.mapred">TaskAttemptContext</A>&nbsp;context)
400                        throws <A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
401<DL>
402<DD><B>Description copied from class: <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#needsTaskCommit(org.apache.hadoop.mapred.TaskAttemptContext)">OutputCommitter</A></CODE></B></DD>
403<DD>Check whether task needs a commit
404<P>
405<DD><DL>
406<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html#needsTaskCommit(org.apache.hadoop.mapred.TaskAttemptContext)">needsTaskCommit</A></CODE> in class <CODE><A HREF="../../../../org/apache/hadoop/mapred/OutputCommitter.html" title="class in org.apache.hadoop.mapred">OutputCommitter</A></CODE></DL>
407</DD>
408<DD><DL>
409
410<DT><B>Returns:</B><DD>true/false
411<DT><B>Throws:</B>
412<DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
413</DD>
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