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https://issues.apache.org/jira/browse/BOOKKEEPER-154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13196947#comment-13196947
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Flavio Junqueira commented on BOOKKEEPER-154:
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The new api call would be to consume up to a given timestamp? My understanding
of the requirement is that the application needs to able to garbage collect old
messages and needs a way of determining how old messages are, otherwise it
doesn't know how far it should consume. A different way would be to consume
based on size, in the case an application needs the ability to reduce the
amount of state store on a given topic to some value.
> Garbage collect messages for those subscribers inactive/offline for a long
> time.
> ---------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-154
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-154
> Project: Bookkeeper
> Issue Type: New Feature
> Components: hedwig-client, hedwig-server
> Affects Versions: 4.0.0
> Reporter: Sijie Guo
>
> Currently hedwig tracks subscribers progress for garbage collecting published
> messages. If subscriber subscribe and becomes offline without unsubscribing
> for a long time, those messages published in its topic have no chance to be
> garbage collected.
> A time based garbage collection policy would be suitable for this case.
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