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