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https://issues.apache.org/jira/browse/PIO-182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16652016#comment-16652016
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ASF GitHub Bot commented on PIO-182:
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takezoe commented on issue #482: [PIO-182] Add async methods to LEventStore
URL: https://github.com/apache/predictionio/pull/482#issuecomment-430299706
@dszeto @shimamoto Could you take a look?
Chris who raised this issue wants to do adding the asynchrnous processing
capability to other storages and engine server following this pull request.
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> Add asynchronous (non-blocking) methods to LEventStore
> ------------------------------------------------------
>
> Key: PIO-182
> URL: https://issues.apache.org/jira/browse/PIO-182
> Project: PredictionIO
> Issue Type: Improvement
> Components: Core
> Affects Versions: 0.13.0
> Reporter: Naoki Takezoe
> Assignee: Naoki Takezoe
> Priority: Major
>
> The current implementation of {{LEventStore}} has only synchronous (blocking)
> methods. Since they use {{ExecutionContext.Implicit.global}}, its parallelism
> is limited up to the number of processors. This means engine server's
> parallelism is also limited if we use these methods in prediction logic.
> To solve this problem, {{Future}} version of these methods should be added to
> {{LEventStore}} and also current blocking methods should be modified to take
> {{ExecutionContext}} (as an implicit parameter).
> See also:
> https://lists.apache.org/thread.html/f14e4f8f29410e4585b3d8e9f646b88293a605f4716d3c4d60771854@%3Cuser.predictionio.apache.org%3E
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