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From "Thomas Jungblut (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-411) Support checkpoint based on HDFS
Date Thu, 07 Jul 2011 05:39:16 GMT

    [ https://issues.apache.org/jira/browse/HAMA-411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13061042#comment-13061042
] 

Thomas Jungblut commented on HAMA-411:
--------------------------------------

I am not a fan of forcing people to override methods, so I'll think we'll provide a default
implementation which always return true.
Since checkpointing can cause overhead, some people may not need to checkpoint in every step
of the calculation. 

We should consider to implement https://issues.apache.org/jira/browse/HAMA-398 first. This
issue is going to put messages to disk.

But I first let Edward refactor the task management in https://issues.apache.org/jira/browse/HAMA-410
.
Afterwards we'll see where to implement these things.

> 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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