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From "Thomas Weise (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (APEXMALHAR-2271) Special SpillableSetMultimap<K, Window.SessionWindow<K>> handling in ManagedState in SpillableSessionWindowedStorage
Date Sun, 12 Mar 2017 17:02:04 GMT

     [ https://issues.apache.org/jira/browse/APEXMALHAR-2271?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thomas Weise updated APEXMALHAR-2271:
-------------------------------------
    Issue Type: Improvement  (was: Sub-task)
        Parent:     (was: APEXMALHAR-2130)

> Special SpillableSetMultimap<K, Window.SessionWindow<K>> handling in ManagedState
in SpillableSessionWindowedStorage
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: APEXMALHAR-2271
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2271
>             Project: Apache Apex Malhar
>          Issue Type: Improvement
>            Reporter: David Yan
>            Assignee: Siyuan Hua
>
> The problem with this data structure is that the key is not time based.
> This poses a problem because we will have a problem purging.
> One idea is to have `put` write the key and the window set to the timebucket that the
latest window in that set belongs to, which means possible duplication of the key and the
window set, and make `get` do a for loop on all time buckets to find the key. That way, purging
based on the time bucket can still be done.



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