A signature can be deleted only after an year of inactivity. That is: a year since its last data point was ingested. I know there have been many test migrations/renames & refactors. This caused the creation of many new signatures & inactivity from previous ones. Perf sheriffs keep a year-long record of alert history. So if we remove inactive signatures (& their alerts), it may impact their workflow.
Bug 1649551 Comment 3 Edit History
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A signature can be deleted only after a year of inactivity. That is: a year since its last data point was ingested. I know there have been many test migrations/renames & refactors. This caused the creation of many new signatures & inactivity from previous ones. Perf sheriffs keep a year-long record of alert history. So if we remove inactive signatures (& their alerts), it may impact their workflow.
A signature can be deleted only after a year of inactivity. That is: a year since its last data point was ingested. I know there have been many test migrations/renames & refactors. This caused the creation of many new signatures & inactivity from previous ones. Perf sheriffs keep a year-long record of alert history. So if we remove inactive signatures (& their alerts), it may impact their workflow. A deeper investigation would be needed to better expire unneeded signatures.