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Posted to commits@samza.apache.org by "Boris Shkolnik (JIRA)" <ji...@apache.org> on 2016/11/04 16:38:59 UTC
[jira] [Updated] (SAMZA-1042) Allow offset notifications for input
systems
[ https://issues.apache.org/jira/browse/SAMZA-1042?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Boris Shkolnik updated SAMZA-1042:
----------------------------------
Summary: Allow offset notifications for input systems (was: [DISCUSS] Allow offset notifications for input systems)
RB.
https://reviews.apache.org/r/53453/
> Allow offset notifications for input systems
> --------------------------------------------
>
> Key: SAMZA-1042
> URL: https://issues.apache.org/jira/browse/SAMZA-1042
> Project: Samza
> Issue Type: Bug
> Reporter: Boris Shkolnik
> Assignee: Boris Shkolnik
> Attachments: NotifiableConsumer.md, NotifiableConsumer.pdf, notifiable consumer2.md, notifiable-consumer2.pdf
>
>
> Currently we keep track of the progress of each consumer using checkpointing mechanism. These checkpoints are controlled by Samza, and the system consumer is not aware of it.
> But some systems may require knowledge of the current checkpointed position in the stream.
> For this purpose we propose an optional notification mechanism for input systems.
> See the attached doc for details.
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