| ************************************************* |
| *** Input Files (Note: tab-separated columns) *** |
| ************************************************* |
| [:~]$ cat datajoin/input/A |
| A.a11 A.a12 |
| A.a21 A.a22 |
| B.a21 A.a32 |
| A.a31 A.a32 |
| B.a31 A.a32 |
| |
| [:~]$ cat datajoin/input/B |
| A.a11 B.a12 |
| A.a11 B.a13 |
| B.a11 B.a12 |
| B.a21 B.a22 |
| A.a31 B.a32 |
| B.a31 B.a32 |
| |
| |
| ***************************** |
| *** Invoke SampleDataJoin *** |
| ***************************** |
| [:~]$ $HADOOP_HOME/bin/hadoop jar hadoop-datajoin-examples.jar org.apache.hadoop.contrib.utils.join.DataJoinJob datajoin/input datajoin/output Text 1 org.apache.hadoop.contrib.utils.join.SampleDataJoinMapper org.apache.hadoop.contrib.utils.join.SampleDataJoinReducer org.apache.hadoop.contrib.utils.join.SampleTaggedMapOutput Text |
| Using TextInputFormat: Text |
| Using TextOutputFormat: Text |
| 07/06/01 19:58:23 INFO mapred.FileInputFormat: Total input paths to process : 2 |
| Job job_kkzk08 is submitted |
| Job job_kkzk08 is still running. |
| 07/06/01 19:58:24 INFO mapred.LocalJobRunner: collectedCount 5 |
| totalCount 5 |
| |
| 07/06/01 19:58:24 INFO mapred.LocalJobRunner: collectedCount 6 |
| totalCount 6 |
| |
| 07/06/01 19:58:24 INFO datajoin.job: key: A.a11 this.largestNumOfValues: 3 |
| 07/06/01 19:58:24 INFO mapred.LocalJobRunner: actuallyCollectedCount 5 |
| collectedCount 7 |
| groupCount 6 |
| > reduce |
| |
| |
| ******************* |
| *** Output File *** |
| ******************* |
| [:~]$ cat datajoin/output/part-00000 |
| A.a11 A.a12 B.a12 |
| A.a11 A.a12 B.a13 |
| A.a31 A.a32 B.a32 |
| B.a21 A.a32 B.a22 |
| B.a31 A.a32 B.a32 |
