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From Andrew Purtell <apurt...@apache.org>
Subject Re: [DISCUSS] Rolling Upgrade 0.98 -> 1.1
Date Tue, 28 Apr 2015 23:27:33 GMT
+1 for rolling upgrade from 0.98 to any 1.x for as long as we can manage
it. Will make life easier for adopters of the 1.x line who come in later.

On Tue, Apr 28, 2015 at 10:16 AM, Nick Dimiduk <ndimiduk@apache.org> wrote:

> We're pretty late in the game to bring this up, but I want to make sure
> we're all on the same page. I believe we want to support rolling upgrades
> as there have been blocker tickets opened against the release to this
> effect. The two things I'm aware of that cause problems here are table
> state in meta (HBASE-13017) and distributed log replay (HBASE-12577). Are
> there any others we should be aware of? When I search for "Hadoop Flags:
> Incompatible change" [0] I do get a couple hits, but I don't think this
> flag is well socialized.
> Given the resolution outlined for table states, I'm prone to punt this one
> to 1.2.
> For DLR, we have HBASE-12743 opened without clear progress. Devaraj also
> mentioned to me that he's been tracking troubles around this feature his
> test runs. Unless someone wants to crack this nut today or tomorrow, I
> think we should toggle it off. HBASE-13584.
> Other items?
> Thanks,
> Nick
> [0]:
> https://issues.apache.org/jira/issues/?jql=project%20%3D%20HBASE%20AND%20fixVersion%20%3D%201.1.0%20AND%20%22Hadoop%20Flags%22%20%3D%20%22Incompatible%20change%22

Best regards,

   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)

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