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https://issues.apache.org/jira/browse/HAMA-838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13864073#comment-13864073
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Anastasis Andronidis commented on HAMA-838:
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Sorry for the code style, my eclipse was old and for some reason didn't utilize
the XML.
I can start documenting the basic concepts from now. Should I start on wiki
right?
BTW, I'm thinking that we should make some changes on the Aggregator interface
that might help us later on to create the persistent aggregators like:
1) Create a clean() method. Creating a new instance (in AggregatorRunner) in
every run is time consuming and stressing for GC.
2) Create two abstract classes/interfaces for a) RegularAggregator b)
PersistentAggregator
> Add custom aggregators
> ----------------------
>
> Key: HAMA-838
> URL: https://issues.apache.org/jira/browse/HAMA-838
> Project: Hama
> Issue Type: Improvement
> Components: graph
> Affects Versions: 0.6.3
> Reporter: Anastasis Andronidis
> Assignee: Anastasis Andronidis
> Labels: features, patch
> Fix For: 0.7.0
>
> Attachments: HAMA-838.patch, HAMA-838_v02.patch
>
>
> This is a patch that adds custom aggregators.
> I also wrote an example of how you can use them.
> Implementation features:
> * Register the aggregators by name.
> * Custom aggregators are skipped when there are no messages to process
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