org.apache.mahout.math.hadoop.stochasticsvd
Class BtJob.OuterProductCombiner
java.lang.Object
org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Writable,SparseRowBlockWritable,org.apache.hadoop.io.Writable,SparseRowBlockWritable>
org.apache.mahout.math.hadoop.stochasticsvd.BtJob.OuterProductCombiner
- Enclosing class:
- BtJob
public static class BtJob.OuterProductCombiner
- extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Writable,SparseRowBlockWritable,org.apache.hadoop.io.Writable,SparseRowBlockWritable>
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer |
org.apache.hadoop.mapreduce.Reducer.Context |
Method Summary |
protected void |
cleanup(org.apache.hadoop.mapreduce.Reducer.Context context)
|
protected void |
reduce(org.apache.hadoop.io.Writable key,
Iterable<SparseRowBlockWritable> values,
org.apache.hadoop.mapreduce.Reducer.Context context)
|
protected void |
setup(org.apache.hadoop.mapreduce.Reducer.Context context)
|
Methods inherited from class org.apache.hadoop.mapreduce.Reducer |
run |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
accum
protected final SparseRowBlockWritable accum
closeables
protected final Deque<Closeable> closeables
blockHeight
protected int blockHeight
BtJob.OuterProductCombiner
public BtJob.OuterProductCombiner()
setup
protected void setup(org.apache.hadoop.mapreduce.Reducer.Context context)
throws IOException,
InterruptedException
- Overrides:
setup
in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Writable,SparseRowBlockWritable,org.apache.hadoop.io.Writable,SparseRowBlockWritable>
- Throws:
IOException
InterruptedException
reduce
protected void reduce(org.apache.hadoop.io.Writable key,
Iterable<SparseRowBlockWritable> values,
org.apache.hadoop.mapreduce.Reducer.Context context)
throws IOException,
InterruptedException
- Overrides:
reduce
in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Writable,SparseRowBlockWritable,org.apache.hadoop.io.Writable,SparseRowBlockWritable>
- Throws:
IOException
InterruptedException
cleanup
protected void cleanup(org.apache.hadoop.mapreduce.Reducer.Context context)
throws IOException,
InterruptedException
- Overrides:
cleanup
in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.Writable,SparseRowBlockWritable,org.apache.hadoop.io.Writable,SparseRowBlockWritable>
- Throws:
IOException
InterruptedException
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