I run a fairly high scale pipeline on lambda. The post touched briefly on logging but wanted to chime in with a few helpful points: - Format all logs in json.

I run a fairly high scale pipeline on lambda. The post touched briefly on logging but wanted to chime in with a few helpful points: - Format all logs in json. This allows you to use the json path filtering option on CW. - Add function version & tag to the log lines. CW doesn't allow you to filter based on version. - Don't expect CW log querying to work all the time. - Output runtime stats to CW metrics. edit: formatting