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https://issues.apache.org/jira/browse/HAMA-411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13060302#comment-13060302
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Thomas Jungblut commented on HAMA-411:
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My first idea would be to use an abstract method in BSP (Or we can think of
adding this to our new BSPPeer.):
{noformat}
abstract boolean checkpoint(long superStep);
{noformat}
So the user is up to handle in which superstep he want the checkpointing /
checkpoint(X) = true.
This method gets called before a superstep starts.
If true we are going to save all the messages in the queues to disk.
Additionally we should think of a method in BSP class which is helping the user
to save his own computation- for example the tentative pagerank map in PageRank
Example. Or the user has to take care of it himself when returning true in the
method.
> Support checkpoint based on HDFS
> --------------------------------
>
> Key: HAMA-411
> URL: https://issues.apache.org/jira/browse/HAMA-411
> Project: Hama
> Issue Type: New Feature
> Components: bsp
> Reporter: Thomas Jungblut
>
> We need to add checkpointing to Hama to deal with fault in future.
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