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CombineFileInputFormat (Apache Hadoop Main 0.23.1 API)
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org.apache.hadoop.mapreduce.lib.input</FONT>
<BR>
Class CombineFileInputFormat&lt;K,V&gt;</H2>
<PRE>
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
  <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../../org/apache/hadoop/mapreduce/InputFormat.html" title="class in org.apache.hadoop.mapreduce">org.apache.hadoop.mapreduce.InputFormat</A>&lt;K,V&gt;
      <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.input">org.apache.hadoop.mapreduce.lib.input.FileInputFormat</A>&lt;K,V&gt;
          <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat&lt;K,V&gt;</B>
</PRE>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../../org/apache/hadoop/mapred/lib/CombineFileInputFormat.html" title="class in org.apache.hadoop.mapred.lib">CombineFileInputFormat</A></DD>
</DL>
<HR>
<DL>
<DT><PRE><FONT SIZE="-1">@InterfaceAudience.Public
@InterfaceStability.Stable
</FONT>public abstract class <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.77"><B>CombineFileInputFormat&lt;K,V&gt;</B></A><DT>extends <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.input">FileInputFormat</A>&lt;K,V&gt;</DL>
</PRE>

<P>
An abstract <A HREF="../../../../../../org/apache/hadoop/mapreduce/InputFormat.html" title="class in org.apache.hadoop.mapreduce"><CODE>InputFormat</CODE></A> that returns <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileSplit.html" title="class in org.apache.hadoop.mapreduce.lib.input"><CODE>CombineFileSplit</CODE></A>'s in 
 <A HREF="../../../../../../org/apache/hadoop/mapreduce/InputFormat.html#getSplits(org.apache.hadoop.mapreduce.JobContext)"><CODE>InputFormat.getSplits(JobContext)</CODE></A> method. 
 
 Splits are constructed from the files under the input paths. 
 A split cannot have files from different pools.
 Each split returned may contain blocks from different files.
 If a maxSplitSize is specified, then blocks on the same node are
 combined to form a single split. Blocks that are left over are
 then combined with other blocks in the same rack. 
 If maxSplitSize is not specified, then blocks from the same rack
 are combined in a single split; no attempt is made to create
 node-local splits.
 If the maxSplitSize is equal to the block size, then this class
 is similar to the default splitting behavior in Hadoop: each
 block is a locally processed split.
 Subclasses implement 
 <A HREF="../../../../../../org/apache/hadoop/mapreduce/InputFormat.html#createRecordReader(org.apache.hadoop.mapreduce.InputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext)"><CODE>InputFormat.createRecordReader(InputSplit, TaskAttemptContext)</CODE></A>
 to construct <code>RecordReader</code>'s for 
 <code>CombineFileSplit</code>'s.
<P>

<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileSplit.html" title="class in org.apache.hadoop.mapreduce.lib.input"><CODE>CombineFileSplit</CODE></A></DL>
<HR>

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<!-- =========== FIELD SUMMARY =========== -->

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<CODE>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#SPLIT_MINSIZE_PERNODE">SPLIT_MINSIZE_PERNODE</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#SPLIT_MINSIZE_PERRACK">SPLIT_MINSIZE_PERRACK</A></B></CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;<A NAME="fields_inherited_from_class_org.apache.hadoop.mapreduce.lib.input.FileInputFormat"><!-- --></A>
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Fields inherited from class org.apache.hadoop.mapreduce.lib.input.<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.input">FileInputFormat</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#INPUT_DIR">INPUT_DIR</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#NUM_INPUT_FILES">NUM_INPUT_FILES</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#PATHFILTER_CLASS">PATHFILTER_CLASS</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#SPLIT_MAXSIZE">SPLIT_MAXSIZE</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#SPLIT_MINSIZE">SPLIT_MINSIZE</A></CODE></TD>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#CombineFileInputFormat()">CombineFileInputFormat</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;default constructor</TD>
</TR>
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<!-- ========== METHOD SUMMARY =========== -->

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<B>Method Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#createPool(java.util.List)">createPool</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="../../../../../../org/apache/hadoop/fs/PathFilter.html" title="interface in org.apache.hadoop.fs">PathFilter</A>&gt;&nbsp;filters)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a new pool and add the filters to it.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#createPool(org.apache.hadoop.fs.PathFilter...)">createPool</A></B>(<A HREF="../../../../../../org/apache/hadoop/fs/PathFilter.html" title="interface in org.apache.hadoop.fs">PathFilter</A>...&nbsp;filters)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a new pool and add the filters to it.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>abstract &nbsp;<A HREF="../../../../../../org/apache/hadoop/mapreduce/RecordReader.html" title="class in org.apache.hadoop.mapreduce">RecordReader</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">K</A>,<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">V</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#createRecordReader(org.apache.hadoop.mapreduce.InputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext)">createRecordReader</A></B>(<A HREF="../../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A>&nbsp;split,
                                     <A HREF="../../../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="interface in org.apache.hadoop.mapreduce">TaskAttemptContext</A>&nbsp;context)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This is not implemented yet.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;<A HREF="../../../../../../org/apache/hadoop/fs/BlockLocation.html" title="class in org.apache.hadoop.fs">BlockLocation</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#getFileBlockLocations(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.FileStatus)">getFileBlockLocations</A></B>(<A HREF="../../../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;fs,
                                           <A HREF="../../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</A>&nbsp;stat)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A>&gt;</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#getSplits(org.apache.hadoop.mapreduce.JobContext)">getSplits</A></B>(<A HREF="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Generate the list of files and make them into FileSplits.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#isSplitable(org.apache.hadoop.mapreduce.JobContext, org.apache.hadoop.fs.Path)">isSplitable</A></B>(<A HREF="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context,
                       <A HREF="../../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Is the given filename splitable? Usually, true, but if the file is
 stream compressed, it will not be.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#setMaxSplitSize(long)">setMaxSplitSize</A></B>(long&nbsp;maxSplitSize)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Specify the maximum size (in bytes) of each split.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#setMinSplitSizeNode(long)">setMinSplitSizeNode</A></B>(long&nbsp;minSplitSizeNode)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Specify the minimum size (in bytes) of each split per node.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#setMinSplitSizeRack(long)">setMinSplitSizeRack</A></B>(long&nbsp;minSplitSizeRack)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Specify the minimum size (in bytes) of each split per rack.</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.apache.hadoop.mapreduce.lib.input.FileInputFormat"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.mapreduce.lib.input.<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.input">FileInputFormat</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#addInputPath(org.apache.hadoop.mapreduce.Job, org.apache.hadoop.fs.Path)">addInputPath</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#addInputPaths(org.apache.hadoop.mapreduce.Job, java.lang.String)">addInputPaths</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#computeSplitSize(long, long, long)">computeSplitSize</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getBlockIndex(org.apache.hadoop.fs.BlockLocation[], long)">getBlockIndex</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getFormatMinSplitSize()">getFormatMinSplitSize</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getInputPathFilter(org.apache.hadoop.mapreduce.JobContext)">getInputPathFilter</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getInputPaths(org.apache.hadoop.mapreduce.JobContext)">getInputPaths</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getMaxSplitSize(org.apache.hadoop.mapreduce.JobContext)">getMaxSplitSize</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getMinSplitSize(org.apache.hadoop.mapreduce.JobContext)">getMinSplitSize</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#listStatus(org.apache.hadoop.mapreduce.JobContext)">listStatus</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#makeSplit(org.apache.hadoop.fs.Path, long, long, java.lang.String[])">makeSplit</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#setInputPathFilter(org.apache.hadoop.mapreduce.Job, java.lang.Class)">setInputPathFilter</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#setInputPaths(org.apache.hadoop.mapreduce.Job, org.apache.hadoop.fs.Path...)">setInputPaths</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#setInputPaths(org.apache.hadoop.mapreduce.Job, java.lang.String)">setInputPaths</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#setMaxInputSplitSize(org.apache.hadoop.mapreduce.Job, long)">setMaxInputSplitSize</A>, <A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#setMinInputSplitSize(org.apache.hadoop.mapreduce.Job, long)">setMinInputSplitSize</A></CODE></TD>
</TR>
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<P>

<!-- ============ FIELD DETAIL =========== -->

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<A NAME="SPLIT_MINSIZE_PERNODE"><!-- --></A><H3>
SPLIT_MINSIZE_PERNODE</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.80"><B>SPLIT_MINSIZE_PERNODE</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat.SPLIT_MINSIZE_PERNODE">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="SPLIT_MINSIZE_PERRACK"><!-- --></A><H3>
SPLIT_MINSIZE_PERRACK</H3>
<PRE>
public static final <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.82"><B>SPLIT_MINSIZE_PERRACK</B></A></PRE>
<DL>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../../../constant-values.html#org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat.SPLIT_MINSIZE_PERRACK">Constant Field Values</A></DL>
</DL>

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<A NAME="CombineFileInputFormat()"><!-- --></A><H3>
CombineFileInputFormat</H3>
<PRE>
public <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.160"><B>CombineFileInputFormat</B></A>()</PRE>
<DL>
<DD>default constructor
<P>
</DL>

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<B>Method Detail</B></FONT></TH>
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<A NAME="setMaxSplitSize(long)"><!-- --></A><H3>
setMaxSplitSize</H3>
<PRE>
protected void <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.100"><B>setMaxSplitSize</B></A>(long&nbsp;maxSplitSize)</PRE>
<DL>
<DD>Specify the maximum size (in bytes) of each split. Each split is
 approximately equal to the specified size.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setMinSplitSizeNode(long)"><!-- --></A><H3>
setMinSplitSizeNode</H3>
<PRE>
protected void <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.111"><B>setMinSplitSizeNode</B></A>(long&nbsp;minSplitSizeNode)</PRE>
<DL>
<DD>Specify the minimum size (in bytes) of each split per node.
 This applies to data that is left over after combining data on a single
 node into splits that are of maximum size specified by maxSplitSize.
 This leftover data will be combined into its own split if its size
 exceeds minSplitSizeNode.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setMinSplitSizeRack(long)"><!-- --></A><H3>
setMinSplitSizeRack</H3>
<PRE>
protected void <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.122"><B>setMinSplitSizeRack</B></A>(long&nbsp;minSplitSizeRack)</PRE>
<DL>
<DD>Specify the minimum size (in bytes) of each split per rack.
 This applies to data that is left over after combining data on a single
 rack into splits that are of maximum size specified by maxSplitSize.
 This leftover data will be combined into its own split if its size
 exceeds minSplitSizeRack.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="createPool(java.util.List)"><!-- --></A><H3>
createPool</H3>
<PRE>
protected void <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.130"><B>createPool</B></A>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="../../../../../../org/apache/hadoop/fs/PathFilter.html" title="interface in org.apache.hadoop.fs">PathFilter</A>&gt;&nbsp;filters)</PRE>
<DL>
<DD>Create a new pool and add the filters to it.
 A split cannot have files from different pools.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="createPool(org.apache.hadoop.fs.PathFilter...)"><!-- --></A><H3>
createPool</H3>
<PRE>
protected void <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.139"><B>createPool</B></A>(<A HREF="../../../../../../org/apache/hadoop/fs/PathFilter.html" title="interface in org.apache.hadoop.fs">PathFilter</A>...&nbsp;filters)</PRE>
<DL>
<DD>Create a new pool and add the filters to it. 
 A pathname can satisfy any one of the specified filters.
 A split cannot have files from different pools.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="isSplitable(org.apache.hadoop.mapreduce.JobContext, org.apache.hadoop.fs.Path)"><!-- --></A><H3>
isSplitable</H3>
<PRE>
protected boolean <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.148"><B>isSplitable</B></A>(<A HREF="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;context,
                              <A HREF="../../../../../../org/apache/hadoop/fs/Path.html" title="class in org.apache.hadoop.fs">Path</A>&nbsp;file)</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#isSplitable(org.apache.hadoop.mapreduce.JobContext, org.apache.hadoop.fs.Path)">FileInputFormat</A></CODE></B></DD>
<DD>Is the given filename splitable? Usually, true, but if the file is
 stream compressed, it will not be.
 
 <code>FileInputFormat</code> implementations can override this and return
 <code>false</code> to ensure that individual input files are never split-up
 so that <A HREF="../../../../../../org/apache/hadoop/mapreduce/Mapper.html" title="class in org.apache.hadoop.mapreduce"><CODE>Mapper</CODE></A>s process entire files.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#isSplitable(org.apache.hadoop.mapreduce.JobContext, org.apache.hadoop.fs.Path)">isSplitable</A></CODE> in class <CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.input">FileInputFormat</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">K</A>,<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">V</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>context</CODE> - the job context<DD><CODE>file</CODE> - the file name to check
<DT><B>Returns:</B><DD>is this file splitable?</DL>
</DD>
</DL>
<HR>

<A NAME="getSplits(org.apache.hadoop.mapreduce.JobContext)"><!-- --></A><H3>
getSplits</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A>&gt; <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.164"><B>getSplits</B></A>(<A HREF="../../../../../../org/apache/hadoop/mapreduce/JobContext.html" title="interface in org.apache.hadoop.mapreduce">JobContext</A>&nbsp;job)
                           throws <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getSplits(org.apache.hadoop.mapreduce.JobContext)">FileInputFormat</A></CODE></B></DD>
<DD>Generate the list of files and make them into FileSplits.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html#getSplits(org.apache.hadoop.mapreduce.JobContext)">getSplits</A></CODE> in class <CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/FileInputFormat.html" title="class in org.apache.hadoop.mapreduce.lib.input">FileInputFormat</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">K</A>,<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">V</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>job</CODE> - the job context
<DT><B>Returns:</B><DD>an array of <A HREF="../../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce"><CODE>InputSplit</CODE></A>s for the job.
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="createRecordReader(org.apache.hadoop.mapreduce.InputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext)"><!-- --></A><H3>
createRecordReader</H3>
<PRE>
public abstract <A HREF="../../../../../../org/apache/hadoop/mapreduce/RecordReader.html" title="class in org.apache.hadoop.mapreduce">RecordReader</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">K</A>,<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">V</A>&gt; <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.471"><B>createRecordReader</B></A>(<A HREF="../../../../../../org/apache/hadoop/mapreduce/InputSplit.html" title="class in org.apache.hadoop.mapreduce">InputSplit</A>&nbsp;split,
                                                     <A HREF="../../../../../../org/apache/hadoop/mapreduce/TaskAttemptContext.html" title="interface in org.apache.hadoop.mapreduce">TaskAttemptContext</A>&nbsp;context)
                                              throws <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>This is not implemented yet.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/InputFormat.html#createRecordReader(org.apache.hadoop.mapreduce.InputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext)">createRecordReader</A></CODE> in class <CODE><A HREF="../../../../../../org/apache/hadoop/mapreduce/InputFormat.html" title="class in org.apache.hadoop.mapreduce">InputFormat</A>&lt;<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">K</A>,<A HREF="../../../../../../org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html" title="type parameter in CombineFileInputFormat">V</A>&gt;</CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>split</CODE> - the split to be read<DD><CODE>context</CODE> - the information about the task
<DT><B>Returns:</B><DD>a new record reader
<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
<HR>

<A NAME="getFileBlockLocations(org.apache.hadoop.fs.FileSystem, org.apache.hadoop.fs.FileStatus)"><!-- --></A><H3>
getFileBlockLocations</H3>
<PRE>
protected <A HREF="../../../../../../org/apache/hadoop/fs/BlockLocation.html" title="class in org.apache.hadoop.fs">BlockLocation</A>[] <A HREF="../../../../../../src-html/org/apache/hadoop/mapreduce/lib/input/CombineFileInputFormat.html#line.633"><B>getFileBlockLocations</B></A>(<A HREF="../../../../../../org/apache/hadoop/fs/FileSystem.html" title="class in org.apache.hadoop.fs">FileSystem</A>&nbsp;fs,
                                                <A HREF="../../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</A>&nbsp;stat)
                                         throws <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD><DL>

<DT><B>Throws:</B>
<DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
</DD>
</DL>
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