Lots of Download errors...

Anonymous
Topic 13433

The AEI download mirror has been taken offline (see Server Status Page) on Friday for a closer analysis of the problem, so the files should be downloaded from other mirrors by the clients now (automatically). I personally doubt that it has anything to do with the Apps. The problem might, however, have been triggered by the increased traffic from work being done faster now. I know that Steffen & David are working on this.

BM

Bernd Machenschalk
Bernd Machenschalk
Joined: 15 Oct 04
Posts: 2,684
Credit: 25,950,161
RAC: 34,820

Lots of Download errors...

I've not noticed that a client writes the complete download URL in the messages - maybe there isn't such a client or maybe I didn't notice (yet).

The list of download locations for a file can be seen in the sched_reply_einstein.phys.uwm.edu.xml file in the BOINC directory.
Here is an example for the "earth" file section from my sched_reply:
[pre]
earth_05_09
http://einstein.aei.mpg.de/download/3e9/earth_05_09
http://einstein.astro.gla.ac.uk/download/3e9/earth_05_09
http://morel.mit.edu/download/3e9/earth_05_09
http://einstein.aset.psu.edu/download/3e9/earth_05_09
http://einstein.phys.uwm.edu/download/3e9/earth_05_09
http://einstein.aei.mpg.de/download/3e9/earth_05_09
http://einstein.astro.gla.ac.uk/download/3e9/earth_05_09
http://morel.mit.edu/download/3e9/earth_05_09
http://einstein.aset.psu.edu/download/3e9/earth_05_09
http://einstein.phys.uwm.edu/download/3e9/earth_05_09
cdc8b8d950d01580fc1c8929be9e58fb
[/pre]
This tells the client to try the download servers at AEI, Glasgow, MIT, PSU, and UWM in this order. The list will be cycled if you are in a different timezone closer to another server.

BM

BM

Bernd Machenschalk
Bernd Machenschalk
Joined: 15 Oct 04
Posts: 2,684
Credit: 25,950,161
RAC: 34,820

There was indeed a problem

There was indeed a problem with the AEI mirror that has been found and (hopefully) fixed.

Enjoy!

BM

BM

Bernd Machenschalk
Bernd Machenschalk
Joined: 15 Oct 04
Posts: 2,684
Credit: 25,950,161
RAC: 34,820

RE: The interesting part in

Quote:
The interesting part in this is the fact that I get the download errors only on my Windows machine. The Macs download WUs without problems.


Are you still getting these?

AFAIK the problem had to do with the number of connections opened by a client, i.e. the number of files that have to be downloaded for new work - maybe your're downloading a new data file on Windows, which is (currently) not necessary on the Macs?

BM

BM

Bernd Machenschalk
Bernd Machenschalk
Joined: 15 Oct 04
Posts: 2,684
Credit: 25,950,161
RAC: 34,820

RE: I'm still having them

Quote:

I'm still having them and this time I tried connecting only one machine at first to rule out too many connections and possible timeouts.

It quickly got the same Download errors, all by itself :(
(the BOINCview Transfer list does not show any other Downloads than WorkUnits)

Other Projects or other Activities (e.g. Downloads, Surfing, Online Gaming) work just fine ; I also changed nothing on my Systems or Connections.

---------

I took the time and counted :

Failure rate was 61 out of 146 this morning.

Consistent Error Message :

5.2.13
WU download error: couldn't get input files:

grid_0810_h_T07_S5R1.dat
-119
MD5 check failed

Seems a MD5 problem all the way.

My only hint atm is to reset the project and start all over again with the files.

BM

BM

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