GitHub user fhueske opened a pull request:
https://github.com/apache/incubator-flink/pull/108
[FLINK-1060] Added methods to DataSet to explicitly hash-partition or
rebalance the input of Map-based operators.
Adds three methods to DataSet:
- `DataSet.partitionByHash(int...)`
- `DataSet.partitionByHash(KeySelector)`
- `DataSet.rebalance()`
The methods create a PartitionedDataSet on which Map-based operators can be
applied (`filter()`, `map()`, `flatMap()`, and `mapPartition()`).
Feedback welcome.
I will add documentation once code changes are considered to be good to be
merged.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/fhueske/incubator-flink userPartition
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-flink/pull/108.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #108
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commit 75d73f8ee801575691d414ea9104fb63cf3ef494
Author: Fabian Hueske <[email protected]>
Date: 2014-08-19T23:03:56Z
[FLINK-1060] Added methods to DataSet to explicitly hash-partition or
rebalance the input of Map-based operators.
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