I mostly agree with Phill. However unfortunate it is, the following is true! 1. It may be very hard to reproduce an issue with proper log settings. 2. System may not remain in the problematic state forever.
But like I mentioned the size of the log file on some systems are limited. We have a rotating log file of 50MB size. You may not believe me when I say 50MB is not sufficient to capture the logs for 30 minutes when we set log level to debug/trace. We don't have a way of backing up these logs to some server to analyse later. What we have is just 50MB! So we have to apply filters at the generation point!
We have to smartly design our logging system after considering all the limitations of the target system!
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I mostly agree with Phill. However unfortunate it is, the following is true! 1. It may be very hard to reproduce an issue with proper log settings. 2. System may not remain in the problematic state forever.
But like I mentioned the size of the log file on some systems are limited. We have a rotating log file of 50MB size. You may not believe me when I say 50MB is not sufficient to capture the logs for 30 minutes when we set log level to debug/trace. We don't have a way of backing up these logs to some server to analyse later. What we have is just 50MB! So we have to apply filters at the generation point!
We have to smartly design our logging system after considering all the limitations of the target system!