Getting the Blackfire logs

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Please include the following information in your issue

• Your platform (e.g. macOS, Debian wheezy x86, Ubuntu Precise x64, etc...);

• The version of your Blackfire agent:

  • If you are using v1, run blackfire-agent -v  command;

  • If you are using v2, run blackfire version command;

• The content of the Probe log file (read below);

• The content of the Agent log file (read below);

PHP

• The output of php -v  command.

• The output of php -d display_startup_errors=on --ri blackfire  command.

Python

• The output of pip show blackfire  

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Getting logs from Blackfire

PHP Probe logs

1. Increase the Probe log level from your php.ini file, to the debug level by configuring it with blackfire.log_level=4   and blackfire.log_file=/tmp/blackfire.log  (refer to the Probe configuration for more information);

2. ⚠️  Do not forget to restart the web server or PHP-FPM to reload the configuration;

3. Profile your code again.

Python Probe logs

1. Increase the Probe log level to debug by setting BLACKFIRE_LOG_LEVEL environment variable to 4
   BLACKFIRE_LOG_LEVEL=4 blackfire-python run python example.py  

2. The default log file is python-probe.log .
   If the profile is running through Django, the log file is located in the same folder as the Django application where manage.py resides.
   If the profile is running via blackfire-python run or manually, the log file is located in the same folder as the profiled script.

3. You may customize the location of the log file by setting BLACKFIRE_LOG_FILE environment variable. 

Agent logs

Note: this does not apply to Magento Cloud, which can only get the probe logs.

1. Increase the Agent log level to debug by configuring it with log-level=4  (refer to the Agent configuration for more information);

2. ⚠️  Do not forget to restart the Agent to reload its configuration;

3. Profile your code again;

4. Get the logs:

   • On Linux: default log files are in  /var/log/blackfire/agent.log ;

   • On macOS: default log files are in /usr/local/var/log/blackfire/agent.log ;

   • On Windows: simply copy/paste the console output;

   • On Heroku: log files are in /app/.blackfire/var/log/agent.log.

Agent logs using the Blackfire Docker image

1. Increase the log level using the BLACKFIRE_LOG_LEVEL environment variable to 4 (debug level).
   Refer to the "Debugging the Agent" section of the Docker documentation.

2. Restart the container;

3. Profile your code again;

4. Get the logs:

   • When using docker-compose, you may run docker-compose logs blackfire to display them;

   • When using only the docker command, run docker logs <your_container_id>

Logs from Platform.sh

1. If needed, create a BLACKFIRE_LOG_FILE environment variable. This can be done from the platform command, from your Platform.sh web console, or within your .platform.app.yaml file.
   Set the value to e.g. /tmp/blackfire.log.

2. Increase the verbosity to the debug level (level 4), by setting the BLACKFIRE_LOG_LEVEL environment variable;

3. Redeploy;

4. Profile again;

5. Get the logs:

   • Open an SSH session to your Platform.sh container using platform ssh

   • Display the contents of your log file using cat /tmp/blackfire.log