I wrote a custom partitioner. But when I work as standalone or pseudo-distributed mode, the number of partitions is always 1. I set the numberOfReducer to 4, but the numOfPartitions parameter of custom partitioner is still 1 and all my four mappers' results are going to 1 reducer. The other reducers yield empty files.
How can i set the number of partitions in standalone or pseudo-distributed mode? thanks for your helps.
