[volunteergrid2-l] Grid problem: uploads failing

[Iantcho Vassilev]

Hmm...Your thesis is interesting.
Please keep us informed what happened after.

ianchov at gmail.com is accepting new shares..


Regards,
Iantcho

On Thu, Oct 20, 2011 at 19:52, Shawn Willden <shawn at willden.org> wrote:

> So... this is interesting.
>
> I changed the params to 6/11/11 and was able to upload.
>
> Then it occurred to me that if I set shares.total to 14 I could see exactly
> which servers were accepting shares and, theoretically, identify the three
> which are not.  So, I set my params to 6/11/14... and what I found was that
> *all 14 nodes are accepting shares*.  Which is good, but raises the
> question of why I was getting happiness failures when trying to upload to
> 12.
>
> Then -- and here's the really bizarre part -- I changed my settings to
> 7/12/14.  So I'm requiring 12 shares to be happy, but trying to push 14.
>  And all of my uploads are succeeding!  In fact, I'm getting all 14 shares
> for all of them.
>
> I'm going to ask about this on tahoe-dev, but my theory is that it may be a
> bad idea to set shares.happy == shares.total.  I suspect that tahoe sends
> out shares.total requests and is happy if shares.happy or more servers
> respond within some timeout.  This means that if shares.total ==
> shares.happy, and one of the servers (for whatever reason) is a little slow
> to respond, the upload fails.
>
> Anyway, 7/12/14 is working fine for me.
>
> On Thu, Oct 20, 2011 at 10:12 AM, Marco Tedaldi <marco.tedaldi at gmail.com>wrote:
>
>> On 20.10.2011 17:11, Shawn Willden wrote:
>> > Occasional errors due to slow-responding servers I could understand.
>>  But
>> > since yesterday afternoon I cannot upload anything with shares.happy=12.
>>  I
>> > have a little shell script that attempts to run my backup every 60
>> seconds
>> > (until success) and logs failures, and it hasn't been able to upload a
>> > single file since about 4 PM MST yesterday.
>> >
>> Funny thing. I'm uploading my images just fine the whole day. Have stops
>> with shares happy=12 every few hours, that's true. But I can upload most
>> of the time.
>>
>> And this despite my quite limited upload bandwith (500kbit/s)
>>
>>
>> best
>>
>> Marco
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>
>
>
> --
> Shawn
>
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