Manuel added a subscriber: Lydia_Pintscher. Manuel added a comment.
@Lydia_Pintscher: This is unfortunately really bad news: I have just discussed this issue with Lucas and Michael. The short version is that a maintenance attempt apparently failed badly and led to data loss (see incident report <https://wikitech.wikimedia.org/wiki/Incident_documentation/2021-10-29_graphite>). There were no backups. As a result, we permanently lost data for all metrics that still lack historic data (11 October 2021 and earlier). Reconstructing the missing data from dumps is theoretically possible in some cases, but it will take a lot of developer resources. Our recommendation is to focus reconstruction attempts on only a very small number of extremely important metrics. If you have a shortlist of such candidates, the team would in the next step try to identify whether reconstruction is possible in theory and what would be needed to make it happen. Also, we are asking to get regular backups for the future (see T297145 <https://phabricator.wikimedia.org/T297145> and triggered by this also T297485 <https://phabricator.wikimedia.org/T297485>). TASK DETAIL https://phabricator.wikimedia.org/T294355 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Manuel Cc: Lydia_Pintscher, LSobanski, jcrespo, Manuel, Michael, Addshore, fgiunchedi, Aklapper, Lucas_Werkmeister_WMDE, 786, Suran38, Biggs657, Invadibot, Lalamarie69, Devnull, maantietaja, lmata, Juan90264, Alter-paule, Beast1978, Un1tY, Akuckartz, Hook696, Kent7301, joker88john, CucyNoiD, Nandana, Gaboe420, Giuliamocci, Robin.guo, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, herron, GoranSMilovanovic, QZanden, Marostegui, LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Scott_WUaS, Wikidata-bugs, aude, Mbch331
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