giraph-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Maja Kabiljo (JIRA)" <>
Subject [jira] [Commented] (GIRAPH-297) Checkpointing on master is done one superstep later
Date Mon, 13 Aug 2012 09:03:37 GMT


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 (
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:
>             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.

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:!default.jspa
For more information on JIRA, see:


View raw message