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Posted to issues@ignite.apache.org by "Anton Dmitriev (JIRA)" <ji...@apache.org> on 2018/07/23 15:02:00 UTC

[jira] [Assigned] (IGNITE-9055) [ML] SVM throws NPE in case of empty partitions

     [ https://issues.apache.org/jira/browse/IGNITE-9055?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Anton Dmitriev reassigned IGNITE-9055:
--------------------------------------

    Assignee: Anton Dmitriev

> [ML] SVM throws NPE in case of empty partitions
> -----------------------------------------------
>
>                 Key: IGNITE-9055
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9055
>             Project: Ignite
>          Issue Type: Bug
>          Components: ml
>    Affects Versions: 2.5, 2.6
>            Reporter: Anton Dmitriev
>            Assignee: Anton Dmitriev
>            Priority: Major
>             Fix For: 2.7
>
>
> Method calculateUpdates throws NPE in case of empty partitions. Reduce function user in this method doesn't handle correctly empty arguments ((a, b) -> a == null ? b : a.plus(b))).
> We need to fix this reduce function or update Partition Based Dataset so that it doesn't emit empty arguments.



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