Unable to start an experiment on Clemson cluster

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sumit

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Nov 16, 2025, 10:57:14 PMNov 16
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Hello Team,

I am trying to start an experiment with some reserved nodes on the Clemson cluster. However, when the experiment is started, I am getting the following error message:

The Cloudlab Clemson cluster is currently unavailable. Please try again later.

Apart from my inability to start an experiment, the reserved nodes cannot be used till the problem is resolved, which could result in the cancellation of the reservation if I don't use the nodes within some fixed time (it is either 3 or 6 hours). So, I would appreciate your help to avoid the cancellation and start the experiments.

Furthermore, some of the existing experiments on Clemson for my labmates show their node status as n/a, so there might be issues for the currently running experiments, too.

Thank you for the help!

Regards,
Sumit

ajma...@gmail.com

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Nov 16, 2025, 11:57:15 PMNov 16
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Hi Sumit,

It looks like the main control server for Clemson has gone down unexpectedly.   I'll see what I can do, but depending on the nature of the issue, it might not be fixed until tomorrow. 

Best,
 - Aleks

Sumit

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Nov 17, 2025, 12:28:20 AMNov 17
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Thanks for the update and your help, Aleks.

Regards,
Sumit

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ajma...@gmail.com

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Nov 17, 2025, 3:26:26 AMNov 17
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Hi Sumit,

Just to update you, I wasn't able to get it back online tonight.  It should get some more eyes on it in the morning, but in the meantime, sorry for the inconvenience.

Best,
 - Aleks

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