Re: Pb Megacam image transfert from CADC

From: <mellier_at_iap.fr>
Date: Sat, 24 May 2008 21:23:05 +0200 (CEST)

  Dear John

  ok, thanks a lot for the investigations !!

   Cheers

yannick

> My apologies Yannick -- I just reread your message and realized that the
> times you mentioned were exactly during the period of our network
> problems. The download that never completed was likely just not
> terminated correctly by curl. Since your subsequent download using wget
> worked, curl should now work, too. I will however still talk to our
> network admin about the problem.
>
> John
>
> ----- Original Message -----
> From: mellier_at_iap.fr <mellier_at_iap.fr>
> To: Ouellette, John
> Cc: Yannick Mellier <mellier_at_iap.fr>; Data Oversite Group Group
> <dog_at_cfht.hawaii.edu>
> Sent: Sat May 24 13:22:57 2008
> Subject: Re: Pb Megacam image transfert from CADC
>
>
> Dear John
>
> Thank you very much for your email and for looking at
> the problem.
>
> I started a transfer yesterday at about 8:00 pm, Paris local
> time. About 10 files were transferred without problem. All are
> transferred using "curl". At about 9:00 pm yesterday, I curl-ed
> 967615p but it vever finished: about 2/3 were only transferred
> this morning at 7:00 am, though it kept continuing to transfer
> (no interruption over the night). In order to understand what
> could happen I then went to CADC interface and got this image
> interactively, using wget. It worked well
> , but transferred the .gz image (I usually transfer the .fz image). I
> interrupted the wget after about 10 mn this morning since I saw
> thre was no problmen with wget and the .gz image. THis is
> why you saw a "failure" after 5-10 minutes, I guess? In any case, I
> stopped the curl also and gave up. I will try again tomorrow and will
> keep you informed on the transfer.
>
> Cheers and thanks again,
>
> yannick
>
>>
>> Hi Yannick -- There do not seem to be any problems on the CADC end: a
>> few tests show that data is still capable of being transferred from our
>> web servers at >60Mbytes/sec, and I can't see any failures on our
>> storage nodes. According to our logs, there was one file (967615p)
>> that
>> didn't transfer properly to you, but the failure occurred after five or
>> ten minutes, not five hours: there don't seem to be any problem with
>> transferring that file at this time.
>>
>> Could you send me a list of files that you're having problems with?
>> Perhaps I'm not seeing those failures being logged.
>>
>> John Ouellette
>>
>> Yannick Mellier wrote:
>>>
>>> Dear JJ
>>>
>>> Is there any problem at CADC? It takes 5 hours to transfer one
>>> image.fz from CADC to Terapix.
>>>
>>> Cheers
>>>
>>> yannick
>>>
>>
>
>
>
Received on Sat May 24 2008 - 09:23:13 HST