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https://issues.apache.org/jira/browse/HBASE-1249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12693605#action_12693605
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Jonathan Gray commented on HBASE-1249:
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I don't understand what we gain from #1 versus #2. What do we lose the ability
to do by allowing past timestamp to be set for DeleteFamily?
Also, Jim, you were the one who voiced opposition to disallowing manual setting
of timestamps. I've come to agree with that, with the restriction only being
on disallowing _future_ stamps (which breaks nearly all optimizations). Is
there a particular reason it makes sense to allow inserts to be put in with any
timestamp but not a delete?
> 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-StoreFile-v1.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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