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https://issues.apache.org/jira/browse/PIO-193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16678244#comment-16678244
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ASF GitHub Bot commented on PIO-193:
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takezoe commented on issue #495: [PIO-193] Async support for predict method and
storage access, blocking code wrapped in blocking construct
URL: https://github.com/apache/predictionio/pull/495#issuecomment-436630580
I think this way isn't acceptable because it breaks current interfaces. This
means that all existing templates won't work after this change. Async support
in entire prediction service is really nice but we need to find another way.
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> Use async requests to storage whenever possible
> -----------------------------------------------
>
> Key: PIO-193
> URL: https://issues.apache.org/jira/browse/PIO-193
> Project: PredictionIO
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.13.0
> Reporter: Chris Wewerka
> Priority: Major
>
> The storage access in Prediction IO uses blocking drivers and uses the
> standard scala ExecutionContext which is a bounded ForkJoin ThreadPool. This
> leads to bad usage of machines resources.
>
> See also
> [https://lists.apache.org/thread.html/f14e4f8f29410e4585b3d8e9f646b88293a605f4716d3c4d60771854@%3Cuser.predictionio.apache.org%3E]
> and https://jira.apache.org/jira/browse/PIO-182
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