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https://issues.apache.org/jira/browse/APEXCORE-146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15302783#comment-15302783
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ASF GitHub Bot commented on APEXCORE-146:
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GitHub user ilganeli opened a pull request:
https://github.com/apache/incubator-apex-malhar/pull/297
[APEXCORE-146] Add ClonePartitioner
**Note:** This is still marked as an Apex issue even though it should live
in Malhar. Once the JIRA is updated I'll update title and reference.
* Created a Clone partitioner similar to the StatelessPartitioner that
assigns all data to all partitions
* Added a simple unit test suite to test scale up and scale down
**Questions**
Is there a good place/way to add a test to verify that data is partitioned
appropriately? For example, the stateless partitioner assigns keys based on the
nearest power of two - is that validated anywhere?
How is the serialVersionUUID generated?
Does the manual assignment of ports to PartitionKeys need to happen for
each Partition? There is a comment in the Partition class that by default all
data is sent to all partitions. However, digging into the implementation in
depth doesn't show that behavior. Instead, it seems data is assigned based on
the mask associated with each Partition.
This references: https://issues.apache.org/jira/browse/APEXCORE-146
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ilganeli/incubator-apex-malhar APEXCORE-146
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-apex-malhar/pull/297.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 #297
----
commit 74f6fd5113a3d488015a9817790018dd63b5e8cb
Author: Ilya Ganelin <ilya.gane...@capitalone.com>
Date: 2016-05-26T19:39:24Z
Added a new partitioner that replicates data across all partitions by
default.
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> Add A Clone Partitioner Which Sends The Same Data To Each Partition
> -------------------------------------------------------------------
>
> Key: APEXCORE-146
> URL: https://issues.apache.org/jira/browse/APEXCORE-146
> Project: Apache Apex Core
> Issue Type: New Feature
> Reporter: Timothy Farkas
> Assignee: Ilya Ganelin
>
> This should go into com.datatorrent.common.partitioner and would be very
> similar to the StatelessPartitioner
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