@Marvin how would you advise i add rate limiting for logs on my self hosted prefect server?

I wasn't able to retrieve the latest version of Prefect directly. Could you please let me know which version of Prefect you are using? This will help me provide the most accurate guidance for implementing rate limiting for logs on your self-hosted Prefect server.

@Marvin its prefect 2.19

Implementing rate limiting for logs on your self-hosted Prefect 2.19 server can be approached by configuring the logging settings within Prefect. Here's how you can do it: 1. Environment Variables for Logging: You can set environment variables to adjust the logging configuration. This is done using the syntax

PREFECT_LOGGING_[PATH]_[TO]_[KEY]

. For example, if you want to change the default logging level to DEBUG, you could set an environment variable like:

PREFECT_LOGGING_LEVEL="DEBUG"

2. Root Logger Configuration: The root Python logger, which captures logs from all loggers unless they explicitly opt out, can be adjusted too. By default, it outputs

WARNING

level logs to the console. You can change this by setting:

PREFECT_LOGGING_ROOT_LEVEL="INFO"

3. Custom Logging Configuration: You may want to create a custom logging configuration file where you can define handlers that implement rate limiting for logs. This can be done using Python's logging module to create custom handlers that throttle logging output as needed. For details on these configurations and more advanced logging setup, you can refer to the Prefect documentation: - Guides on logging configuration If this setup doesn't fully address your needs, you'll need to implement custom rate-limiting logic within your Prefect flow definition or handlers. This might involve using Python's

logging.Filter

to count and restrict logs emitted per unit of time. For any additional assistance or alternative approaches, please let me know!

@Marvin i don't think this helps, this is about configuring loggers not limiting the number of logs in any flow, like prefect cloud does

It seems that there's no direct built-in feature in Prefect 2.19 for implementing log rate limiting on self-hosted servers similar to what Prefect Cloud offers. However, you can implement custom logic to achieve this functionality. Here's a conceptual approach: 1. Custom Logging Handler: Create a custom logging handler in Python. This handler can override the

emit

method to include rate-limiting logic, such as maintaining a count of log records emitted and restricting output after reaching a defined limit within a time window. 2. Attach Handler to Logger: Attach your custom handler to the logger used by your Prefect flow. By default, Prefect uses the

prefect

logger, so you'll want to add the handler there. 3. Example Implementation: - Below is a simple example using Python's logging module:

python
     import logging
     import time

     class RateLimitingHandler(logging.Handler):
         def __init__(self, max_logs_per_minute, *args, **kwargs):
             super().__init__(*args, **kwargs)
             self.max_logs_per_minute = max_logs_per_minute
             self.log_timestamps = []
        
         def emit(self, record):
             current_time = time.time()
             # Remove timestamps older than 60 seconds
             self.log_timestamps = [t for t in self.log_timestamps if current_time - t < 60]
        
             if len(self.log_timestamps) < self.max_logs_per_minute:
                 self.log_timestamps.append(current_time)
                 super().emit(record)
             else:
                 # Optionally, handle the case where logs are being rate limited
                 pass

     logger = logging.getLogger("prefect")
     rate_limited_handler = RateLimitingHandler(max_logs_per_minute=60)
     logger.addHandler(rate_limited_handler)

This approach allows you to decide how many log messages you want to permit per time window and helps you control spammy log outputs in your flows on a self-hosted environment. If you are looking for a feature request or discussion on this topic, it may be worthwhile to keep an eye on Prefect's GitHub repository for future updates or submit a feature request. Let me know if you need further assistance or detailed guidance on setting this up!