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https://issues.apache.org/jira/browse/HAMA-838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13866166#comment-13866166
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Edward J. Yoon commented on HAMA-838:
-------------------------------------
{quote}
As I can see in Apache Giraph ->
org.apache.giraph.master.MasterAggregatorHandler#prepareSuperstep The
persistant aggregators are just aggregating the previous state. There is value
saving or statistics.
{quote}
For this issue, let's create a new ticket. Do you plan to handle it in
doMasterAggregation() method?
> 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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