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https://issues.apache.org/jira/browse/GIRAPH-297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13433011#comment-13433011
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Maja Kabiljo commented on GIRAPH-297:
-------------------------------------
This also takes me back to the discussion about whether we should have
master.compute() executed before or after vertices
(https://issues.apache.org/jira/browse/GIRAPH-259?focusedCommentId=13427285&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13427285).
In the BspServiceMaster.coordinateSuperstep() we first wait for workers to
finish superstep X, and then artificially increase the superstep and call
master.compute() for superstep X+1, after which we say we are done with
superstep X. So the decision of compute order and our implementation are
inconsistent. Jan, can you give some comment on this?
> Checkpointing on master is done one superstep later
> ---------------------------------------------------
>
> Key: GIRAPH-297
> URL: https://issues.apache.org/jira/browse/GIRAPH-297
> Project: Giraph
> Issue Type: Bug
> Reporter: Maja Kabiljo
> Assignee: Maja Kabiljo
>
> On workers we store checkpoint X before compute() for superstep X are
> executed. On master we do it after those compute() are executed and after
> master.compute() for superstep X+1.
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