[Q&A] Suppressing logs to CRITICAL

[ssingh-dual]

Python version (python3 -V)

3.12.3

NVFlare version (python3 -m pip list | grep "nvflare")

2.5.2

NVFlare branch (if running examples, please use the branch that corresponds to the NVFlare version, git branch)

2.5 main

Operating system

Ubuntu 24.04.1 LTS

Have you successfully run any of the following examples?

• hello-numpy-sag with simulator
• hello-pt with simulator
• hello-numpy-sag with POC
• hello-pt with POC

Please describe your question

I'm attempting to suppress all the log_info by changing the log config to critical (or even error). I followed the guidelines from here but seem to be missing something.
I created the below log.config file (with level set to CRITICAL) and copied it to the <workspace>/startup/log.config. Upon running (Simulation mode), I notice that each FLComponent picks the default log config instead of the startup one.
Can you point out what I am doing wrong? Thanks :)

[loggers]
keys=root

[handlers]

[formatters]

[logger_root]
level=CRITICAL

[YuanTingHsieh]

@ssingh-dual you are doing it correctly, I think we have a bug in the simulator log config handling.

Can you please try the POC mode?
You can find the workspace and inside the workspace you can find this log.config in each site's startup folder there you can edit it.

https://nvflare.readthedocs.io/en/2.5/user_guide/configurations/logging_configuration.html#poc-log-configurations

[ssingh-dual]

The issue persists with POC mode as well. I tried with this workflow: https://github.com/NVIDIA/NVFlare/blob/main/examples/hello-world/step-by-step/cifar10/sag_he/sag_he.ipynb

[YuanTingHsieh]

@SYangster do you know how we achieve this in 2.6 and main?

[YuanTingHsieh]

Hi @ssingh-dual to unblock you,
you can try with our 2.6.0rc releases, (pip install nvflare==2.6.0rc, remember to use examples from 2.6 branch)

You can do: nvflare simulator -n 2 -t 2 [your job] -l critical

We will update our documentation for 2.6 and check on the issue in 2.5.

[ssingh-dual]

Thanks :)