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Date: Mon, 24 Sep 2012 17:09:33 +0100
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Subject: Re: recovering data from an unfinished compaction db
From: Robert Newson <rnewson@apache.org>
To: user@couchdb.apache.org
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That does imply that the last valid header is a long way back up the
file, though.

On 24 September 2012 17:00, Paul Davis <paul.joseph.davis@gmail.com> wrote:
> I'd ignore the snappy error for now. There's no way this thing ran for
> an hour and then suddenly hit an error in that code. If this is like a
> bug I've seen before the reason that this runs out of RAM is due to
> the code that's searching for a header not releasing binary ref counts
> as it should be.
>
> The quickest way to fix this would probably be to go back and update
> recover-couchdb to recognize the new disk format. Although that gets
> harder now that snappy compression is involved.
>
> On Mon, Sep 24, 2012 at 10:32 AM, Dave Cottlehuber <dch@jsonified.com> wrote:
>> On 24 September 2012 15:02, Robert Newson <rnewson@apache.org> wrote:
>>> {badmatch,{error,snappy_nif_not_loaded} makes me wonder if this 1.2
>>> installation is even right.
>>>
>>> Can someone enlighten me? Is it possible to get this error spuriously?
>>
>> No. I'd be keen to see a bit of logfiles to understand what's not working.
>>
>>> Does running out of RAM cause erlang to unload NIF's?
>>
>> I don't think so on Windows.
>>
>> There's an R15B01 based build here:
>> https://www.dropbox.com/sh/jeifcxpbtpo78ak/GG9fjWOyDt/Snapshots/20120524
>> that has a fix for a more recent version of Windows server than I have
>> to address one NIF loading error, although there are a number of
>> possible causes.
>>
>> @Rudi can you give this a go & report back?
>>
>> A+
>> Dave