Bandwidth Measurement at 0.0 kbps Message from Server

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peterlavin

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Message 17912 - Posted: 17 Jun 2008, 10:39:43 UTC

Hi,
when running the test project cplan with uppercase as the application, installation went ok. I am using boinc_5.8.16_i686-pc-linux-gnu on SL450 as the client.

I am constantly getting the following message in the client msg tab...

...upperCASE requires 1.96 kbps download bandwidth. Your computer has been measured at 0.00 kbps.

Using netcap, there is no issue with bandwidth. Firewalls are off on C & S, I have also installed the client locally on the server, same message is received.

Has anyone come across this issue before? all help appreciated,

Peter
Peter Lavin
CS Dept,
Trinity College Dublin.
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Profile Jord
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Message 17913 - Posted: 17 Jun 2008, 10:49:38 UTC

I'm not sure if CPlan is still up&running. I've asked the developers about that.
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peterlavin

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Message 17915 - Posted: 17 Jun 2008, 11:12:30 UTC - in response to Message 17913.  

Hi Jord, do you mean to say it is defunct, i.e. the version downloaded will not work due to changes in the software, etc?

Peter

I'm not sure if CPlan is still up&running. I've asked the developers about that.

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Message 17916 - Posted: 17 Jun 2008, 11:23:50 UTC - in response to Message 17915.  
Last modified: 17 Jun 2008, 11:28:36 UTC

No, I'm not sure if the site is still completely up&running, with everything in place.

We usually test on BOINC Alpha, but you need to be registered for that (account creation isn't open). You can ask for an account through that site.

I'll wait for an answer, but don't expect one for the next 4 hours.
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peterlavin

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Message 17917 - Posted: 17 Jun 2008, 11:31:41 UTC - in response to Message 17916.  

Hi again J, I didn't make myself clear. I am running a server too, with cplan and uppercase as the project. The C and S are on two VM in a testbed. Connectivity and bandwidth should not be an issue. Everything else seems in place and looks normal.
No, I'm not sure if the site is still completely up&running, with everything in place.

I've tried a few things like over writing the 0.0 values in the server d'base, but these get reset to zero (i.e. net_stats is working but ???)

I'll wait for an answer, but don't expect one for the next 4 hours.

no worries, I'm here all day, thanks for your help,

Peter
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peterlavin

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Message 17918 - Posted: 17 Jun 2008, 11:32:26 UTC - in response to Message 17916.  

Hi again J, I didn't make myself clear. I am running a server too, with cplan and uppercase as the project. The C and S are on two VM in a testbed. Connectivity and bandwidth should not be an issue. Everything else seems in place and looks normal.
No, I'm not sure if the site is still completely up&running, with everything in place.

I'll wait for an answer, but don't expect one for the next 4 hours.

no worries, I'm here all day, thanks for your help,

I've tried a few things like over writing the 0.0 values in the server d'base, but these get reset to zero (i.e. net_stats is working but ???)

Peter
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Message 17919 - Posted: 17 Jun 2008, 11:46:19 UTC - in response to Message 17918.  

Hi again J, I didn't make myself clear. I am running a server too, with cplan and uppercase as the project. The C and S are on two VM in a testbed. Connectivity and bandwidth should not be an issue. Everything else seems in place and looks normal.

Ah OK, sorry, I misunderstood. I thought you attached to the external CPlan server.

Perhaps it is quicker to (also) ask this on the BOINC Development email list. The list needs registration. You can always point to this thread (and show the world my misunderstanding of the situation. ;-))

Although it's possible you miss some driver in the VM.
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peterlavin

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Message 17967 - Posted: 20 Jun 2008, 9:31:23 UTC - in response to Message 17919.  

The C and S are on two VM in a testbed. Connectivity and bandwidth should not be an issue. Everything else seems in place and looks normal.


Update from originator...
This problem was caused by a new client who had never downloaded anything having the host.n_bqup and host.n_bwdown database values set to 0.0. These get updated to actual values after some data transfers take place.

A new line in the check_bandwith method of schec_send.C has been added now in rev 15440 and it the original problem outlined in this thread...

// if n_bwdown is zero, the host has never downloaded anything,
// so skip this check
//
if (reply.host.n_bwdown == 0) return 0;


regards,
Peter
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Message boards : Server programs : Bandwidth Measurement at 0.0 kbps Message from Server

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