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https://issues.apache.org/jira/browse/MAHOUT-319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13018489#comment-13018489
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Jake Mannix commented on MAHOUT-319:
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I'll leave this patch up for a bit before continuing, but actually fixing this
bug (at least for Lanczos) should be an easy step away from this current patch,
and I might be able to get to that part quickly as well.
> SVD solvers should be gracefully stoppable/restartable
> ------------------------------------------------------
>
> Key: MAHOUT-319
> URL: https://issues.apache.org/jira/browse/MAHOUT-319
> Project: Mahout
> Issue Type: Improvement
> Components: Math
> Affects Versions: 0.3
> Reporter: Jake Mannix
> Assignee: Jake Mannix
> Attachments: MAHOUT-319.patch
>
>
> LanczosSolver, DistributedLanczosSolver, and HebbianSolver all keep copious
> amounts of memory-resident data which is lost if the app crashes or is killed
> (OOM, forgetting to run in a screen session, and losing net connectivity to
> the server running it, etc...).
> These algorithms (and many other Mahout processes!) should enable a pluggable
> "persist state" mechanism (to HDFS, RDBMS, local disk, key-value store, etc),
> and similarly, a way to pick up and start from such a state.
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