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https://issues.apache.org/jira/browse/FLINK-2396?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-2396:
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Labels: auto-deprioritized-major auto-deprioritized-minor auto-unassigned
(was: auto-deprioritized-major auto-unassigned stale-minor)
Priority: Not a Priority (was: Minor)
This issue was labeled "stale-minor" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Minor, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> Review the datasets of dynamic path and static path in iteration.
> -----------------------------------------------------------------
>
> Key: FLINK-2396
> URL: https://issues.apache.org/jira/browse/FLINK-2396
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Task
> Reporter: Chengxiang Li
> Priority: Not a Priority
> Labels: auto-deprioritized-major, auto-deprioritized-minor,
> auto-unassigned
>
> Currently Flink would cached dataset in static path as it assumes that
> dataset stay the same during the iteration, but this assumption does not
> always be true. Take sampling for example, the iteration data set is
> something like the weight vector of model and there is another training
> dataset from which to take a small sample to update the weight vector in each
> iteration (e.g. Stochastic Gradient Descent), we expect sampled dataset is
> different in each iteration, but Flink would cache the sampled dataset as it
> in static path.
> We should review how Flink identify dynamic path and static path, and support
> add sampled dataset in above example to dynamic path.
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