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From "David Yan (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (APEXCORE-247) Implement DefaultDelayOperator
Date Wed, 25 May 2016 22:57:12 GMT

     [ https://issues.apache.org/jira/browse/APEXCORE-247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

David Yan resolved APEXCORE-247.
    Resolution: Won't Fix

We don't need this for now. Will open another ticket if we need it.

> Implement DefaultDelayOperator
> ------------------------------
>                 Key: APEXCORE-247
>                 URL: https://issues.apache.org/jira/browse/APEXCORE-247
>             Project: Apache Apex Core
>          Issue Type: Sub-task
>            Reporter: David Yan
> This class should extend SimpleDelayOperator.  It writes the tuples in the window before
each checkpoint to a DFS-backed WAL, and it overrides firstWindow() to read from the WAL and
emits the tuples at recovery.
> Thomas has suggested leveraging IdempotentStorageManager in Malhar for the WAL implementation.

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