[Prateek Jain]

Hey..

I am trying to access the link that you have provided for the OWL measurement

https://github.com/fabric-testbed/jupyter-examples/tree/mflib-owl/fabric_examples/public_demos/KNIT7/one_way_latency_measurements

But now the link is not available… it says 404 not found..

[Prateek Jain]

Hi Mami.. I will try the approach that you suggested..

This is exactly what I want to do… I plan to send a tracer packet just before sending the file and after sending the file… and check my file transfer time.. I will be there at KNIT7 and if I could not figure out how to timestamp and check packet then I will definitely be in contact with the team working on it..

Thanks 🙂

[Prateek Jain]

I figured out the issue.

[Prateek Jain]

Hey Mami.. I checked the link that you shared but I could not find instructions for using owl for MF slice. The link that you provided prepares a non MF slice for owl. My slice is already MF slice so I am not sure if it works for me.

I have another question.. I am not sure if you can help me with that. So in my experiment I am transferring a file from one node(on site 1) to another node(on site 5).. passing the file through some intermediate nodes on site 2, site3 and site 4. I want to calculate the precise time for my file transfer from site 1 to site 5. I am not sure which FABRIC measurement facility I can use to calculate this. It will be of great help if you could guide me in the right direction on how to achieve this (maybe you can share a link to some content about such functionality or some link to jupyter notebook about such functionality will be highly appreciated).

Thank You

[Prateek Jain]

No I did not create a new slice…
Thanks Hussam, I will create a new slice and get back to you if I get into any issues..

[Prateek Jain]

Hi Hussam

I am still getting the same error

I installed the version 1.0.3:

%%bash
pip install fabrictestbed-mflib==1.0.3
Requirement already satisfied: fabrictestbed-mflib==1.0.3 in /opt/conda/lib/python3.10/site-packages (1.0.3)

%%bash
pip list | grep fabrictestbed-mflib
pip show fabrictestbed-mflib
​
fabrictestbed-mflib 1.0.3
Name: fabrictestbed-mflib
Version: 1.0.3
Summary: FABRIC Measurement Framework Python Client Library – Makes monitoring FABRIC Slice easy.
Home-page:
Author: Song, Pinyi, Hussam
Author-email: Carpenter <csacarp0@g.uky.edu>
License:
Location: /opt/conda/lib/python3.10/site-packages
Requires:
Required-by:

I reloaded the kernel and then ran all my cells again but I am still getting the same error:

09/13/2023 03:26:06 PM root INFO TASK [elk : Start ELK dockers] *************************************************
09/13/2023 03:26:06 PM root INFO Wednesday 13 September 2023 15:26:06 +0000 (0:00:00.429) 0:00:04.956 ***
09/13/2023 03:26:06 PM root INFO Wednesday 13 September 2023 15:26:06 +0000 (0:00:00.429) 0:00:04.955 ***
09/13/2023 03:26:18 PM root INFO fatal: [meas-node]: FAILED! => {“changed”: true, “cmd”: “docker-compose up -d es01 es02 es03”, “delta”: “0:00:11.440929”, “end”: “2023-09-13 15:26:18.485877”, “msg”: “non-zero return code”, “rc”: 18, “start”: “2023-09-13 15:26:07.044948”, “stderr”: “es01 Pulling \nes02 Pulling \nes03 Pulling \nes03 Error \nes01 Error \nes02 Error \nError response from daemon: Get \”https://registry-1.docker.io/v2/\”: EOF”, “stderr_lines”: [“es01 Pulling “, “es02 Pulling “, “es03 Pulling “, “es03 Error “, “es01 Error “, “es02 Error “, “Error response from daemon: Get \”https://registry-1.docker.io/v2/\”: EOF”], “stdout”: “”, “stdout_lines”: []}
09/13/2023 03:26:18 PM root INFO
09/13/2023 03:26:18 PM root INFO PLAY RECAP *********************************************************************
09/13/2023 03:26:18 PM root INFO meas-node : ok=11 changed=5 unreachable=0 failed=1 skipped=10 rescued=0 ignored=0
09/13/2023 03:26:18 PM root INFO
09/13/2023 03:26:18 PM root INFO Playbook run took 0 days, 0 hours, 0 minutes, 16 seconds
09/13/2023 03:26:18 PM root INFO Wednesday 13 September 2023 15:26:18 +0000 (0:00:11.577) 0:00:16.534 ***
09/13/2023 03:26:18 PM root INFO ===============================================================================
09/13/2023 03:26:18 PM root INFO elk : Start ELK dockers ———————————————— 11.58s
09/13/2023 03:26:18 PM root INFO elk : Installing packages in elk/tasks/main.yml for Ubuntu ————– 1.67s
09/13/2023 03:26:18 PM root INFO Gathering Facts ——————————————————— 1.48s
09/13/2023 03:26:18 PM root INFO elk : Update nginx configuration —————————————- 0.43s
09/13/2023 03:26:18 PM root INFO elk : Check if file already exists ————————————– 0.23s
09/13/2023 03:26:18 PM root INFO elk : Check If Docker Is Installed ————————————– 0.22s
09/13/2023 03:26:18 PM root INFO elk : Check if Docker Compose is installed —————————— 0.16s
09/13/2023 03:26:18 PM root INFO elk : Setting login info for nginx ————————————– 0.15s
09/13/2023 03:26:18 PM root INFO elk : Setting Folders for ELK Stack ————————————- 0.15s
09/13/2023 03:26:18 PM root INFO elk : Setting vm.max_map_count —————————————— 0.14s
09/13/2023 03:26:18 PM root INFO elk : Check if elk folders already exists ——————————- 0.14s
09/13/2023 03:26:18 PM root INFO elk : Generate random password for Nginx ——————————– 0.03s
09/13/2023 03:26:18 PM root INFO elk : Add apt repository for stable version for Ubuntu —————— 0.02s
09/13/2023 03:26:18 PM root INFO elk : Add an apt signing key for Docker for Ubuntu ———————- 0.02s
09/13/2023 03:26:18 PM root INFO elk : Installing packages in elk/tasks/main.yml for CentOS 7 ———— 0.02s
09/13/2023 03:26:18 PM root INFO elk : Configure docker-ce repo —————————————— 0.02s
09/13/2023 03:26:18 PM root INFO elk : Installing packages in elk/tasks/main.yml for CentOS 8 ———— 0.02s
09/13/2023 03:26:18 PM root INFO elk : Download and install Docker Compose ——————————- 0.02s
09/13/2023 03:26:18 PM root INFO elk : Create docker group ———————————————– 0.02s
09/13/2023 03:26:18 PM root INFO elk : Install docker —————————————————- 0.02s
09/13/2023 03:26:18 PM root INFO Wednesday 13 September 2023 15:26:18 +0000 (0:00:11.578) 0:00:16.533 ***
09/13/2023 03:26:18 PM root INFO ===============================================================================
09/13/2023 03:26:18 PM root INFO elk ——————————————————————– 15.05s
09/13/2023 03:26:18 PM root INFO gather_facts ———————————————————— 1.48s
09/13/2023 03:26:18 PM root INFO ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
09/13/2023 03:26:18 PM root INFO total —————————————————————— 16.52s
09/13/2023 03:26:18 PM root INFO ELK playbook install failed..
09/13/2023 03:26:18 PM root INFO Ansible elk install playbooks completed.
09/13/2023 03:26:18 PM root INFO —–End Ceate Script.—–

[Prateek Jain]

Hi Arash,
This is the output I get when I run it in the terminal

ERROR: Could not find a version that satisfies the requirement fabrictestbed-mflib==1.0.4 (from versions: 0.0.0b1, 0.1.0b0, 0.1.0b1, 0.2.0b0, 1.0.0, 1.0.1, 1.0.3)
ERROR: No matching distribution found for fabrictestbed-mflib==1.0.4

[Prateek Jain]

Hi I tried to install the latest fabrictestbed-mflib using the command

%%bash
pip install fabrictestbed-mflib==1.0.4

I am getting the following error:
—————————————————————————
CalledProcessError Traceback (most recent call last)
Cell In[29], line 1
—-> 1 get_ipython().run_cell_magic(‘bash’, ”, ‘pip install fabrictestbed-mflib==1.0.4\n’)

File /opt/conda/lib/python3.10/site-packages/IPython/core/interactiveshell.py:2478, in InteractiveShell.run_cell_magic(self, magic_name, line, cell)
2476 with self.builtin_trap:
2477 args = (magic_arg_s, cell)
-> 2478 result = fn(*args, **kwargs)
2480 # The code below prevents the output from being displayed
2481 # when using magics with decodator @output_can_be_silenced
2482 # when the last Python token in the expression is a ‘;’.
2483 if getattr(fn, magic.MAGIC_OUTPUT_CAN_BE_SILENCED, False):

File /opt/conda/lib/python3.10/site-packages/IPython/core/magics/script.py:154, in ScriptMagics._make_script_magic.<locals>.named_script_magic(line, cell)
152 else:
153 line = script
–> 154 return self.shebang(line, cell)

File /opt/conda/lib/python3.10/site-packages/IPython/core/magics/script.py:314, in ScriptMagics.shebang(self, line, cell)
309 if args.raise_error and p.returncode != 0:
310 # If we get here and p.returncode is still None, we must have
311 # killed it but not yet seen its return code. We don’t wait for it,
312 # in case it’s stuck in uninterruptible sleep. -9 = SIGKILL
313 rc = p.returncode or -9
–> 314 raise CalledProcessError(rc, cell)

CalledProcessError: Command ‘b’pip install fabrictestbed-mflib==1.0.4\n” returned non-zero exit status 1.

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