Node Problem

[Vall]

Guys i have 2 pIV Boxes and i clustered it with PelicanHPC..Yesterday it worked fine...But today when i boot and try to do 'pelican_setup' it shows the no.of nodes available is '1' by default even before when i boot the second computer...And when i try to finish the process it shows the total no.of nodes available as 4 which is supposed to be only '2'....Guys whats the cause of this problem???...Is there anyway to bring back it to normal...Kindly help.... 

[Michael Creel]

That's odd. This indicates that when the frontend node scans the network used for clustering (by default, 10.11.12.X), it receives as response to a ping from some other machines. Is you cluster isolated from other machines (wireless turned off, for example)? Try removing the file /home/user/tmp/bhosts, if it exists, and then rerun pelican_restarthpc.

Are you using some sort of permanent storage?

Which version of Pelican are you running?

[Vall]

No dude,My cluster is not an isolated one.....Im using 2 systems out of 100 which are  available in my college lab...I use Pelican HPC V 1.7.2....Will try that solution u just said dude!!!

[Michael Creel]

OK, you should be careful using Pelican on a shared network, or the administrators are likely to give you a spanking. Pelican starts a dhcp server, which will conflict with other dhcp servers. Please check the tutorial, the section on Initial Setup, the part that says "IMPORTANT"  for the details.

[Vall]

Thanks creel..The cluster setup worked well..There was an another box which is at the rear end of the lab which is automatically PXE booted..thats why got irregular no's...Thanks a lot..Now its working Fine