Questions when running console client

Hi, this is Amy and I had some issues for this project.
I followed the instructions from the INSTALL.md to start the console client and it gave me the error: could not find or load main class.

Do you have any thoughts about how to make it work?

Also could you tell me how to have the result figures from the chainspacemeasurements folder?

best regards,
Amy

[musalbas]

Did you run the command to start the console client while you were in the right directory (/chainspace/chainspacecore)?

Thank you for the response. I've solved the first problem.
I'm trying to run tester.py within the chainspacemeasurements folder. However it gave me the error:

python tester.py clientlatency 1 3 20 20 test
No matching processes were found
No matching processes belonging to you were found
Running client latency measurements for batch size 1 (run 0).
Traceback (most recent call last):
File "tester.py", line 348, in
print t.measure_client_latency(min_batch, max_batch, batch_step, runs)
File "tester.py", line 68, in measure_client_latency
self.network.config_core(2, 4)
File "/Users/natlie/PycharmProjects/chainspace-prototype/chainspacemeasurements/instances.py", line 250, in config_core
shuffled_instances = random.sample(instances, shards * nodes_per_shard)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/random.py", line 325, in sample
raise ValueError("sample larger than population")
ValueError: sample larger than population

I can't wrap my head around.

Sincerely,
Amy

[musalbas]

The clientlatency measurement requires tcpdump to be installed.

…

On 28 May 2020 18:15:12 nienting ***@***.***> wrote: Thank you for the response. I've solved the first problem. I'm trying to run tester.py within the chainspacemeasurements folder. However it gave me the error:python tester.py clientlatency 1 3 20 20 test No matching processes were found No matching processes belonging to you were found Running client latency measurements for batch size 1 (run 0). Traceback (most recent call last): File "tester.py", line 348, in print t.measure_client_latency(min_batch, max_batch, batch_step, runs) File "tester.py", line 68, in measure_client_latency self.network.config_core(2, 4) File "/Users/nien-ting/PycharmProjects/chainspace-prototype/chainspacemeasurements/instances.py", line 250, in config_core shuffled_instances = random.sample(instances, shards * nodes_per_shard) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/random.py", line 325, in sample raise ValueError("sample larger than population") ValueError: sample larger than populationI can't wrap my head around. Sincerely, Amy— You are receiving this because you commented. Reply to this email directly, view it on GitHub, or unsubscribe.

Hi @musalbas ,
Thanks again for your quick response. I have checked that tcpdump is installed.
So I ran it again:

(venv) AppledeMacBook-Pro-6:chainspace-prototype natlie$ python tester.py clientlatency 20 200 20 5 test123
Password:
No matching processes were found
Running client latency measurements for batch size 20 (run 0).
instances get running instances:0
length of instances: 0
Traceback (most recent call last):
File "tester.py", line 348, in
print t.measure_client_latency(min_batch, max_batch, batch_step, runs)
File "tester.py", line 68, in measure_client_latency
self.network.config_core(2, 4)
File "/Users/natlie/PycharmProjects/chainspace-prototype/chainspacemeasurements/instances.py", line 259, in config_core
raise ValueError("Number of total nodes exceeds the number of running instances.")
ValueError: Number of total nodes exceeds the number of running instances.

The error says that the Number of total nodes exceeds the number of running instances and I find out that the running instances is 0.

Could you tell me how to fix it?

Best,
Amy

[musalbas]

The measurements module uses the Amazon AWS API to create and manage nodes, so that's something you'll need to setup, and see instances.py for functions that setup the nodes that you can call.

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On 6 June 2020 10:30:45 nienting ***@***.***> wrote: Hi @musalbas , Thanks again for your quick response. I have checked that tcpdump is installed. So I ran it again:(venv) AppledeMacBook-Pro-6:chainspace-prototype nien-ting$ python tester.py clientlatency 20 200 20 5 test123 Password: No matching processes were found Running client latency measurements for batch size 20 (run 0). instances get running instances:0 length of instances: 0 Traceback (most recent call last): File "tester.py", line 348, in print t.measure_client_latency(min_batch, max_batch, batch_step, runs) File "tester.py", line 68, in measure_client_latency self.network.config_core(2, 4) File "/Users/nien-ting/PycharmProjects/chainspace-prototype/chainspacemeasurements/instances.py", line 259, in config_core raise ValueError("Number of total nodes exceeds the number of running instances.") ValueError: Number of total nodes exceeds the number of running instances.The error says that the Number of total nodes exceeds the number of running instances and I find out that the running instances is 0. Could you tell me how to fix it? Best, Amy— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe.

Thanks for your explanation, no wonder I can't set this up lol, I will try to understand how AWS works.
Also, Is there any ways to run the local test? I'd like to see how it works before deploying on AWS.

Yours truly,
Amy

[musalbas]

Not that I know of, the measurement scripts are coded for AWS.