org.apache.mahout.cf.taste.hadoop.als
Class MultithreadedSharingMapper<K1,V1,K2,V2>
java.lang.Object
org.apache.hadoop.mapreduce.Mapper<K1,V1,K2,V2>
org.apache.hadoop.mapreduce.lib.map.MultithreadedMapper<K1,V1,K2,V2>
org.apache.mahout.cf.taste.hadoop.als.MultithreadedSharingMapper<K1,V1,K2,V2>
- Type Parameters:
K1 - V1 - K2 - V2 -
public class MultithreadedSharingMapper<K1,V1,K2,V2>
- extends org.apache.hadoop.mapreduce.lib.map.MultithreadedMapper<K1,V1,K2,V2>
Multithreaded Mapper for SharingMappers. Will call setupSharedInstance() once in the controlling thread
before executing the mappers using a thread pool.
| Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper |
org.apache.hadoop.mapreduce.Mapper.Context |
|
Method Summary |
void |
run(org.apache.hadoop.mapreduce.Mapper.Context ctx)
|
| Methods inherited from class org.apache.hadoop.mapreduce.lib.map.MultithreadedMapper |
getMapperClass, getNumberOfThreads, setMapperClass, setNumberOfThreads |
| Methods inherited from class org.apache.hadoop.mapreduce.Mapper |
cleanup, map, setup |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
MultithreadedSharingMapper
public MultithreadedSharingMapper()
run
public void run(org.apache.hadoop.mapreduce.Mapper.Context ctx)
throws IOException,
InterruptedException
- Overrides:
run in class org.apache.hadoop.mapreduce.lib.map.MultithreadedMapper<K1,V1,K2,V2>
- Throws:
IOException
InterruptedException
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