<@ULVA73B9P> Can I configure prefect to capture lo...
# ask-marvin
n
@Marvin Can I configure prefect to capture logs from some logger by name to the server?
m
Yes, you can configure Prefect to capture logs from a specific logger by name and send them to the server. Prefect provides ways to work with logging: 1. Prefect Loggers: Prefect exposes loggers that can be used to emit custom logs during flow and task runs. You can use the
get_run_logger()
from the
prefect.logging
module to get a logger instance that is aware of the current flow or task run context. This allows logs to be captured and explored in the Prefect UI or API based on relevant run information like run ID and name. 2. Python Loggers: You can also use a normal Python logger with the
get_logger()
function from
prefect.logging
. However, logs from this logger will not be sent to the Prefect API by default. 3. Configuration: You can configure logging settings through Prefect settings or by providing your own
logging.yml
file. This file can be placed in your
PREFECT_HOME
directory or specified with the
PREFECT_LOGGING_SETTINGS_PATH
setting. The configuration can include setting the logging level or customizing the logging behavior. For more details on configuring logging in Prefect, you can refer to the Prefect logging documentation.
n
@Marvin how do I get the log handler that sends logs to my prefect server?
m
To get the log handler that sends logs to your Prefect server, you need to configure the logging settings appropriately in Prefect. Here's how you can do it: 1. Use Prefect Loggers: Prefect's built-in loggers automatically send logs to the Prefect server when you use
get_run_logger()
within a flow or task. This logger is context-aware and ensures that logs are associated with the correct flow or task run in the Prefect UI and API. 2. Extra Loggers: If you want to include logs from other libraries, you can configure the
PREFECT_LOGGING_EXTRA_LOGGERS
setting. This setting allows you to specify additional Python library names whose logs you want to capture and send to the server. 3. Logging Configuration: You can customize the logging configuration using a
logging.yml
file. This file can be placed in your
PREFECT_HOME
directory or specified with the
PREFECT_LOGGING_SETTINGS_PATH
setting. This allows you to define handlers, formatters, and other logging settings. For more detailed instructions, you can refer to the Prefect logging documentation.