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https://issues.apache.org/jira/browse/BOOKKEEPER-151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185732#comment-13185732
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Daniel Kim commented on BOOKKEEPER-151:
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Yes, it seems like eager delete may break some guarantee. I would like to see
it someday when we are capable of adding the eager delete function in there,
however, I coded around the issue for now. I use Zookeeper client to set a flag
in the hedwig/standalone/topics/myTopic/deleted znode and my application just
checks it. This approach is working well enough for now, so I'll live with it.
Thank you for your concern.
> Delete method for Hedwig client API that uses eager cleanup
> -----------------------------------------------------------
>
> Key: BOOKKEEPER-151
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-151
> Project: Bookkeeper
> Issue Type: Wish
> Components: hedwig-client, hedwig-server
> Environment: Ubuntu / Centos
> Reporter: Daniel Kim
> Labels: features, new
>
> I am using hedwig as a notification system for my webapp. However, the
> current version of hedwig does not have any api for deleting topics. Since I
> want to be able to manage the resources, I tried to "delete" a topic by
> removing the znodes associated with the topic. However, the hubs do not lose
> their ownership of their delete topics until the redistribution period (e.g.,
> lazy cleanup). The hubs will behave as if they still own the topic, which has
> no information in zookeeper server(s). I am hoping to see a hedwig-client api
> that does eager delete.
> As of now, the system is unthrottled and thus can grow without bound. This
> poses a threat where my resources can run out by malicious use cases, rogue
> programmers, etc.
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