fgiunchedi added a comment.
Status update: I'm running a full audit on all ~4M metric files looking for similar cases. The backfill from yesterday completed in the mean time and some metrics were able to be backfilled successfully. I'll be following up with an incident report about this -- again my apologies for the unexpected data loss during migration and backfill. In terms of action items: we currently don't backup graphite metric files, mostly due to the sheer number of files and space they take. However if a subset of metric files in a directory hierarchy isn't too big (I don't have the exact number on hand for "big" but I'd say low tens of thousands, to be confirmed) then it should be doable to back up in bacula. TASK DETAIL https://phabricator.wikimedia.org/T294355 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: fgiunchedi Cc: Addshore, fgiunchedi, Aklapper, Lucas_Werkmeister_WMDE, Invadibot, maantietaja, Akuckartz, Nandana, Robin.guo, Lahi, Gq86, GoranSMilovanovic, QZanden, LawExplorer, _jensen, rosalieper, Scott_WUaS, Wikidata-bugs, aude, Mbch331
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