[Manas Das]

Thank you @Thereja for the quick response. Yes, my bastion key expired.

[Manas Das]

@Komal, thank you for your reply, yes there are slices in the closing/ dead state. There are many such instances. Will you please tell me how to remove them or if you can remove all of them, please advice.

[Manas Das]

@Paul Thank you for replying to the thread, yes all your points are valid, we may have to request for NVMe permission. About the persistence storage we have 1TB disks in 3 sites, it is storing data for the experiment. But we need more storage per VM because of the nature of the experiment. Or if there is a way to increase the number of VMs to say 14-16 (Cores-20, ram-128, disk-500) will also solve our problem.

The disk space is available per site (more than our requirement) . I don’t know why it is not getting added to a slice, please look into it.

Thank you

[Manas Das]

@Komal thank you once again, yes we can do multisite experiments, but we are currently focused on a single site for many reasons. Please discuss the above problem with the fabric team and please let us know the outcome, eagerly waiting for it.

With Regards,

Manas

[Manas Das]

@Komal Thank you for the update. As you mentioned I tried with lower disk capacity i.e 500GB, it is working. But for our experiments we need much higher disk space. I think there are three strategies going forward:

1) Please somehow resolve the issue so that the experiment can have higher disk capacity (2000GB) for each VM. As disk space is available.

2) Allow more VMs to be created on a single site like 14-16 ( within the limits of site’s max resource capacity for cores and memory) with 500GB disk space.

3) As a temporary fix please allow 1000GB slice instances, if disk capacity is the problem.

If you have any other strategy in your mind please let us know, and please resolve our issue, we are just stuck with the project now.

Thanking you

Manas

[Manas Das]

@Komal Thank you for your reply. The output is similar to what is shown above:

(base) fabric@jupyter-mjdbz….:~/work$ pip3 list | grep fabric
fabric 3.0.0
fabric-credmgr-client 1.3.2
fabric-fim 1.4.2
fabric-fss-utils 1.4.0
fabric-orchestrator-client 1.4.3
fabrictestbed 1.4.3
fabrictestbed-extensions 1.4.0

The notebook is shared with you.

Thanking you.

Manas

 

 

• This reply was modified 1 year, 10 months ago by Manas Das.
• This reply was modified 1 year, 10 months ago by Manas Das.

[Manas Das]

Hello, It may be due to the change in system.

FABRIC Production Infrastructure Instability this weekend 09/16-09/18

[Manas Das]

@Adam thank you for your help. I will keep in mind your advice.

@Paul, you are correct, I will use fabrictestbed-extensions and hope everything works out.

[Manas Das]

@ Adam I will use the configuration file and try to create a slice. If you know how to do it in a headless machine it will be great, Thanks.

• This reply was modified 2 years, 3 months ago by Manas Das.

[Manas Das]

@Adam Thank you for your reply, I am working with a headless machine so notebooks are of no use to me. So please let me know how to install fabric-testbed on a headless machine. I am trying to install it for many hours now, but still getting the same above mentioned error.

[Manas Das]

@ Brandon

I will try to execute the steps given in the link, I hope everything works. you asked “Would a tutorial on how to SSH into a node and run a script, all from a local terminal be helpful? ” of course. I am still figuring out many things, read your recent post, yes been there in that situation with ssh. Still I have a problem.

@ Paul

Yes, you are correct we need such a tutorial.

Just a general question, suppose I have a slice of two nodes, and both are connected via an interface. I can ssh from my laptop both the nodes individually with their IP address. But I am having a problem ssh to another node while I am inside a node. So, suppose I am inside node1, I cannot ssh into node2. Please tell us how to do it. I have been trying it for quite some time now.

Do we need a key to access the node2 from node1. Which key?. How to put that key inside of the node (if needed). Also few times when I do sudo <some_command> it work fine, but sometimes it ask for root password. Which of course I do not have.

Please let us know the solution to this problem.

Thank you in advance..

[Manas Das]

Hi Paul,

Jupyter notebooks are good for prototyping, but it will be great if we can use the terminal to run scripts. So if there is a tutorial from the very beginning and a detailed one, on how to install the fablab libraries with all requirements and dependencies already taken care of. Or which dependencies need to be installed and from where. It can be for both Rocky and the latest ubuntu images. We really need to write python scripts and integrate it with hadoop. I think many using the fablab will find this tutorial helpful since most of the project will not fit the Jupyter notebook style analysis and experimentation. If such a tutorial is already there please point me towards it. But please remember, if you people are making such a tutorial please make it a detailed one, from scratch.

Thank you in advance.

[Manas Das]

Hi Paul,

Hi,Paul

You are correct, there is inconsistency in slice/sliver key name. I figured it out from your 1st comment. Now everything is working fine. I checked which are the keys used in /home/fabric/work/fabric_config, and used those keys only to login via ssh to the VM. Yes, I ignored the portal key and used only Jupyter environment keys.

@Paul just a tangent question, how to use one slice on multiple notebooks

Thank you.

[Manas Das]

Hi Thanks once again, we have to use the Jupyter environment key to get access. Thanks for the pointer @Paul

[Manas Das]

Thank you very much for the reply Paul. Let me write you the steps that i did from my memory:

1. Created the Bastion key in fabric UI, download both the keys.

2. Created the Sliver key in fabric UI, download both the keys.

3. uploaded the Bastion key to the Jupyter in, /home/fabric/work/fabric_config. But there is already a key called slice_key and slice_key.pub in there.

4. Run the hello fabric example

5. From there i got the rocky@IP_address

6. Fire up the terminal and configure it as stated in the previous comment.

7. Still can use the slice in the notebook of fabric, in browser. But, I cannot access it from my laptop or within the terminal of Jupyter notebook in fabric itself (in browser) as stated above.

What is this slice_key? should I copy it and put it as sliver key in my laptop. Or should I upload the Sliver_key from my laptop to /home/fabric/work/fabric_config directory in fabric.

So, should I copy the slice_key to my laptop? if I do, will this be the sliver_key for this command:

>ssh -F ~/.ssh/fabric-ssh-config -i /home/orky/.ssh/Sliver_key rocky@129.114.110.74

 

Please do reply.

Thank you.

[Author]

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