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From Stack <st...@duboce.net>
Subject Re: hbase 0.94.0
Date Fri, 27 Jan 2012 17:02:45 GMT
On Fri, Jan 27, 2012 at 8:42 AM, Stack <stack@duboce.net> wrote:
> In this particular case, there was no explicit migration step needed
> going 0.90 to 0.92.  Upgrading from 0.90 to 0.94 should just be
> running the 0.92 to 0.94 migration script (if there is one).
>

Thinking more, the above only really holds if we keep the .META.
migration code that runs in 0.92 on startup on into 0.94 (I have a
patch here where I'm removing it... I should put this bit of code
back).

I see Todd that you vote against removing hfile v1 in 0.94.  To make
going from CDH3 to CDH4, we should not purge any migrating code or old
version support.

I'd be fine w/ that.  We'll need to work hard to ensure it taking it
on as a principal for 0.94.  Ok w/ you "Iron Hand" Lars?

St.Ack

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