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https://issues.apache.org/jira/browse/GIRAPH-293?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453211#comment-13453211
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Eli Reisman commented on GIRAPH-293:
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I will take a look. Scary huh?
> Should aggregators be checkpointed?
> -----------------------------------
>
> Key: GIRAPH-293
> URL: https://issues.apache.org/jira/browse/GIRAPH-293
> Project: Giraph
> Issue Type: Bug
> Reporter: Alessandro Presta
> Assignee: Maja Kabiljo
> Attachments: GIRAPH-293.patch, GIRAPH-293.patch, GIRAPH-293.patch
>
>
> As I understand, we don't include aggregators in checkpoints because they are
> kept in the Zookeeper.
> One of our bootcampers is working on fixing TestManualCheckpoint, which
> currently involves starting a new job from a checkpoint from a previous job*.
> If this is a functionality we want going forward, then persistent aggregators
> should be checkpointed.
> [*] That test relies on the fact that either aggregators are checkpointed or
> they are always reset at each superstep. None of these is happening, but the
> error cancels out with the fact that we are not actually resuming from a
> checkpoint, but re-running the job from scratch.
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