[jira] [Commented] (BOOKKEEPER-321) Message Filter Support

["Mridul Muralidharan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BOOKKEEPER-321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13402184#comment-13402184 ] 

Mridul Muralidharan commented on BOOKKEEPER-321:
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Currently, the message filtering is done in JMS via subset of SQL'92 conditional expression syntax.
And this is done only at the client side.


If there is corresponding server side support, it will greatly simplify things while ensuring much better performance (offloading to server instead of at client).
                
> Message Filter Support
> ----------------------
>
>                 Key: BOOKKEEPER-321
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-321
>             Project: Bookkeeper
>          Issue Type: Improvement
>            Reporter: Sijie Guo
>            Assignee: Sijie Guo
>             Fix For: 4.2.0
>
>
> Support message filtering in hedwig.
> 1) add user-customized headers part in Message, which could be used for message filtering.
> 2) add user-customized subscription preferences, which could be used for message filtering.
> 3) support both server-side & client-side message filter.

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