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From Chris Anderson <jch...@apache.org>
Subject Re: 0.9 -> 0.10 view migration
Date Tue, 19 Jan 2010 23:38:45 GMT
On Tue, Jan 19, 2010 at 2:36 PM, Joshua Bronson <jabronson@gmail.com> wrote:
> On Fri, Jan 8, 2010 at 12:35 PM, Joshua Bronson <jabronson@gmail.com> wrote:
>
>> On Tue, Dec 22, 2009 at 1:23 PM, Joshua Bronson <jabronson@gmail.com>wrote:
>>
>>> I just learned from Jan in #couchdb that 0.10 can read the 0.9 views also
>>> after running a simple migration to shift the header in the view file
>>>
>>
>> It looks like this code is already written and committed! By Damien it
>> looks like. But apparently something is going wrong because when 0.10 reads
>> a 0.9 view, a rebuild is caused rather than a simple header rewrite.
>> Ticketed at https://issues.apache.org/jira/browse/COUCHDB-616.
>>
>
> Just wanted to send an update: Since our disk is steadily filling up and
> there's been no progress yet with #616, we're going to give
> http://github.com/kocolosk/couchdb/tree/0.9.2-and-view-compaction a shot.
> Hopefully we still have enough space to hold the compacted views alongside
> the uncompacted ones while compaction is in progress. If not, we'll just
> have to delete and rebuild them while our site is down. :(
>
> Looking forward to seeing some work on view space and time
> efficiency<http://issues.apache.org/jira/browse/COUCHDB-623>,
> and contributing as much as I can.
>

Thanks for the update. Damien's been busy with a cross-country move so
he hasn't been able to look at this.

To avoid downtime you can replicate to 0.10 and build views, then
switch over your processes to use it.

Chris


-- 
Chris Anderson
http://jchrisa.net
http://couch.io

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