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Posted to dev@mahout.apache.org by "Jake Mannix (JIRA)" <ji...@apache.org> on 2011/05/06 06:07:03 UTC
[jira] [Updated] (MAHOUT-319) SVD solvers should be gracefully
stoppable/restartable
[ https://issues.apache.org/jira/browse/MAHOUT-319?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jake Mannix updated MAHOUT-319:
-------------------------------
Attachment: MAHOUT-319.diff
Committing this, all tests finally are working, functionality is in.
> 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
> Fix For: 0.5
>
> Attachments: MAHOUT-319.diff, MAHOUT-319.diff, 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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