The Proxmox node sweep removes any non-preserved alert whose Node is
empty, and system alerts have no node, so every sweep silently deleted
the notification-delivery alert. Its five-minute evaluation then
re-raised it as a brand-new alert, firing a fresh notification each
cycle with no recovery in between, which reads as an alert appearing,
vanishing without a recovery, and paging again minutes later. System
alerts are now preserved outside node cleanup.
Raises also carried the delivery counts inside the message, and a
message change re-notifies, so each newly retained failure re-paged
even while the condition was unchanged. System alerts now take an
optional fingerprint: while level and fingerprint hold, a re-raise
refreshes the message and metadata silently. The delivery alert
fingerprints on status and failure classes, keeping its counter text
current without paging on drift.
Refs #1721
Contract-Neutral: behavioral fix: delivery-health system alert survived node sweep and stops re-paging on count drift, no public contract delta (Refs #1721)
rcourtman
6f9a01a72a