Hot completely turn off logs

General Discussion
1

I am trying to guess how to turn off logging on a Hailo 8L device running on a Raspberry Pi 5. On another post on this forum I found someone mentioning

os.environ['HAILORT_LOG_LEVEL'] = 'debug'

There are files named hailort.log being created automatically with content like:

[2024-12-28 21:38:33.604] [35932] [HailoRT] [info] [pipeline.cpp:872] [print_deep_description] PushQEl6AsyncHwEl | inputs: AsyncHwEl | outputs: PostInferEl6AsyncHwEl
[2024-12-28 21:38:33.604] [35932] [HailoRT] [info] [pipeline.cpp:872] [print_deep_description] PostInferEl6AsyncHwEl | inputs: PushQEl6AsyncHwEl | outputs: LastAsyncEl0PostInferEl6AsyncHwEl
[2024-12-28 21:38:33.604] [35932] [HailoRT] [info] [pipeline.cpp:872] [print_deep_description] LastAsyncEl0PostInferEl6AsyncHwEl | inputs: PostInferEl6AsyncHwEl | outputs: user
[2024-12-28 21:38:33.604] [35932] [HailoRT] [info] [pipeline.cpp:872] [print_deep_description] PushQEl7AsyncHwEl | inputs: AsyncHwEl | outputs: PostInferEl7AsyncHwEl
[2024-12-28 21:38:33.604] [35932] [HailoRT] [info] [pipeline.cpp:872] [print_deep_description] PostInferEl7AsyncHwEl | inputs: PushQEl7AsyncHwEl | outputs: LastAsyncEl0PostInferEl7AsyncHwEl
[2024-12-28 21:38:33.604] [35932] [HailoRT] [info] [pipeline.cpp:872] [print_deep_description] LastAsyncEl0PostInferEl7AsyncHwEl | inputs: PostInferEl7AsyncHwEl | outputs: user
[2024-12-28 21:38:33.604] [35932] [HailoRT] [info] [pipeline.cpp:872] [print_deep_description] LastAsyncEl8AsyncHwEl | inputs: AsyncHwEl | outputs: user

But I cant find any documentation regarding all available log levels and other logging environment variables like stopping logs fully.

TLDR: How do I turn off logging?

2

Have a look at the HailoRT User guide → Running Inference → Environment Variables.

HAILORT_LOGGER_PATH - Setting the value to NONE will disable the log file

export HAILORT_LOGGER_PATH=NONE
1 Like
3

Is there a way to limit file logs to given log level? In the documentation there is no such environment variable and HAILORT_LOG_LEVEL suggested by @M_S has no effect.

4

Have a look at the HailoRT User guide → Running Inference → Environment Variables.

There is a variable called HAILORT_CONSOLE_LOGGER_LEVEL. I did a short test and this seems to be what you are looking for.

5

Dear @KlausK ,

I saw that variable, but haven’t tried it as its name suggest it is for console logs, not file logs. Now I tried it, but the behavior is still the same, the hailort.log file is filled with info logs, but I set the variable: HAILORT_CONSOLE_LOGGER_LEVEL=error

However, when I changed the variable to HAILORT_CONSOLE_LOGGER_LEVEL=info then the console is filled with info logs. So the variable works fine, but for the console logs, not the file logs.

6

The logging level in HailoRT is hard-coded based on the build type and cannot be overridden using an environment variable. If you need a different logging level, you will need to modify the HailoRT source code and rebuild it. You can see how it’s defined in lines 34–40 in the following file:

GitHub - HailoRT - Hailo-8 - hailort_logger.hpp

1 Like
7

Dear @KlausK why not to export a logging level as a variable or a way to configure this? You are using spdlog so this should not be problem at all.

8

@KlausK my problem really stems from the fact, that my log is cluttered with info information that I can’t fix, and I did not get a help how to fix this. Please kindly take a look at the issue here