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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-unassigned stale-major (was: auto-unassigned)
I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help
the community manage its development. I see this issues has been marked as
Major but is unassigned and neither itself nor its Sub-Tasks have been updated
for 30 days. I have gone ahead and added a "stale-major" to the issue". If this
ticket is a Major, please either assign yourself or give an update. Afterwards,
please remove the label or in 7 days the issue will be deprioritized.
> 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: Major
> Labels: auto-unassigned, stale-major
>
> 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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