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https://issues.apache.org/jira/browse/HBASE-26345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17427289#comment-17427289
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Andrew Kyle Purtell commented on HBASE-26345:
---------------------------------------------

[~vjasani]

This is well written. 

The doc is missing a minor point about ring buffers in that it is ok and 
expected to begin overwriting entries after a wrap-around, this is how they 
re-use the oldest entries for storing the newest, but it can be inferred.

If I didn't know anything about this feature and I was reading the doc, I would 
wonder if the slow log persistence stuff can be reused for another NQ and how I 
might go about doing that. I can see that it is more than just configuration, 
some coding is required, would be useful to explain/diagram this, but not 
required. 

I didn't double check the API details with the code but did read them to check 
that it all makes sense. 

+1 from me, looks great

> Design doc for HBase NamedQueue framework
> -----------------------------------------
>
>                 Key: HBASE-26345
>                 URL: https://issues.apache.org/jira/browse/HBASE-26345
>             Project: HBase
>          Issue Type: Task
>            Reporter: Viraj Jasani
>            Assignee: Viraj Jasani
>            Priority: Major
>         Attachments: Online NamedQueue framework with optional persistence 
> layer.pdf
>
>
> We have a couple of usecases already being served by the NamedQueue 
> framework. It would be good to also provide a design doc to provide the high 
> level system components view and let other usecases be onboarded with ease.



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