On Sun, Nov 7, 2010 at 1:43 PM, Joseph Gentle <[email protected]> wrote:
> Its not just awkward. I think mongodb doesn't give us enough
> consistency guarantees. We can still use it; but we'll need a file
> store as well for recovery.
>
> Mongodb doesn't tell you when the data is committed such that if your
> server crashes, you haven't lost any data. If you sign a delta and
> federate it, then the server crashes before the delta is committed,
> the server is in an inconsistent state. We might be able to fix that
> by changing federation, but for now recovery is impossible.

-J

>
> On Sun, Nov 7, 2010 at 11:39 AM, Alex North <[email protected]> wrote:
>> Right, the implementation isn't complete yet.
>> Inspired by patches from Anthony Watkins and some community enthusiasm we
>> investigated making a MongoDB store first up, but certain limitations of
>> Mongo (document size, no single-server durability guarantee) made it a bit
>> awkward. So as a simple first data store we're implementing a
>> filesystem-based one. We think this will server better as an example of what
>> the wave store needs to provide and help other contributors build
>> alternative implementations, including Mongo.
>> A.
>>
>> On 7 November 2010 18:50, DanielS <[email protected]> wrote:
>>>
>>> Am I right in thinking there is no kind of wave storage implemented at
>>> the moment?
>>>
>>> I saw a draft for wave file storage. What about storing the waves in
>>> mongodb?
>>>
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