I have a log in Stackdriver that logs every request goes into my api and failed, and I want to write a script to count on the number of times each error message appears. The problem is, the export feature in Stackdriver V2 only allow me to sink upcoming error messages, but I only care about the logs entries that already lives in the log. Is there a way to download the complete log from Stackdriver?
You can now do this from the gcloud CLI tool, with gcloud logging read: https://cloud.google.com/logging/docs/reference/tools/gcloud-logging#reading_log_entries
Though in the scenario described, creating a log sink is the only way to capture events that are older than the stackdriver logging window, which is only 30 days even in the paid version.