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Date: Thu, 7 May 2009 21:58:45 -0700 (PDT)
From: "Erik Holstad (JIRA)" <jira@apache.org>
To: hbase-dev@hadoop.apache.org
Subject: [jira] Commented: (HBASE-1249) Rearchitecting of server, client,
 API, key format, etc for 0.20
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    [ https://issues.apache.org/jira/browse/HBASE-1249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707234#action_12707234 ] 

Erik Holstad commented on HBASE-1249:
-------------------------------------

@jgray
Yeah, it's is a little weird, cause when I pasted it, it looked really good in the window, but now it looks really bad.

@Stack
Not really sure what is considered to be very different, I do think that the difference is quite big
The only methods that stays pretty much the same is reset() and filterColumn which changes name to filterQualifier since we are trying to get rid of the column notion.
The filterRowKey could be used as filterRow, but since we only take a byte[] as input we can't use the KeyValue from the scanners but have to do a copy for every check, which seems like
an unnecessary  thing to do, specially since the whole plan on the server side is to avoid copying.
I'm not dying to rewrite the filters, but have started, cause I don't really seem how we could use the old ones in a good way, but if you see a way for us to do that, I'm happy to not do the work.
. 

> Rearchitecting of server, client, API, key format, etc for 0.20
> ---------------------------------------------------------------
>
>                 Key: HBASE-1249
>                 URL: https://issues.apache.org/jira/browse/HBASE-1249
>             Project: Hadoop HBase
>          Issue Type: Improvement
>            Reporter: Jonathan Gray
>            Priority: Blocker
>             Fix For: 0.20.0
>
>         Attachments: HBASE-1249-Example-v1.pdf, HBASE-1249-Example-v2.pdf, HBASE-1249-GetQuery-v1.pdf, HBASE-1249-GetQuery-v2.pdf, HBASE-1249-GetQuery-v3.pdf, HBASE-1249-GetQuery-v4.pdf, HBASE-1249-StoreFile-v1.pdf, HBASE-1249-StoreFile-v4.pdf
>
>
> To discuss all the new and potential issues coming out of the change in key format (HBASE-1234): zero-copy reads, client binary protocol, update of API (HBASE-880), server optimizations, etc...

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