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Posted to issues@spark.apache.org by "zhengruifeng (Jira)" <ji...@apache.org> on 2020/01/08 11:25:00 UTC
[jira] [Assigned] (SPARK-30457) Use PeriodicRDDCheckpointer instead
of NodeIdCache
[ https://issues.apache.org/jira/browse/SPARK-30457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
zhengruifeng reassigned SPARK-30457:
------------------------------------
Assignee: zhengruifeng
> Use PeriodicRDDCheckpointer instead of NodeIdCache
> --------------------------------------------------
>
> Key: SPARK-30457
> URL: https://issues.apache.org/jira/browse/SPARK-30457
> Project: Spark
> Issue Type: Improvement
> Components: ML
> Affects Versions: 3.0.0
> Reporter: zhengruifeng
> Assignee: zhengruifeng
> Priority: Minor
>
> Both PeriodicRDDCheckpointer and NodeIdCache are used in tree models:
> PeriodicRDDCheckpointer is used in GBT to maintain prediction and errors,
> NodeIdCache is used to maintain NodeIds.
>
> The functionality of them are highly similar, and the update process of NodeIdCache is simply. I guess we can delete NodeIdCache and use PeriodicRDDCheckpointer instead.
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