[Monotone-devel] Re: netsync restartability [was, Re: summit photos]

[Koen Kooi]

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Thomas Keller schreef:
> Timothy Brownawell schrieb:
>> On Fri, 2007-02-16 at 06:04 +1100, Daniel Carosone wrote:
>>> On Fri, Feb 16, 2007 at 04:50:49AM +1100, Daniel Carosone wrote:
>>>> I also have one at 204.152.190.23:4692
>>> (you'll need to use your keys)
>> /me notes that multi-hundred-MB revisions make netsync's restartability
>> not work so well.
>>
>> Maybe when sending fulltexts or really large diffs, we want there to be
>> a way for the sender to ask before sending, in case the receiver might
>> already have it from an interrupted sync?
>>
> 
> I'd second the request for a "resume" functionality here. One could mark
> a certain partially downloaded file delta as "unfinished" (and does the
> same with the revision as well). Maybe partial pull will bring something
> along like this... in the end this will probably rewrite the current
> netsync code quite a bit anyways...

How about starting a bit smaller and make monotone to try a bit harder to write 
the
revisions it has already received to disk. I did a small experiment on OSX 
today:

* pull ~75 (small) revs from an overloaded server
* wait till it gets wedged at 34 revs in (server was *really* getting hammered 
at that time)
* let it sit for 15 minutes
* ctrl-c

Monotone had written only 3 (three) of the 34 revs it had received. I suspect 
some
thresshold isn't getting reached when pulling all the small csets we make to 
the OE project.

regards,

KOen
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