UI: Speed up /alerts for many firing alerts via virtual scrolling#17486
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UI: Speed up /alerts for many firing alerts via virtual scrolling#17486
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We already have infinite scrolling for all the rules within a group, but this adds a second (nested) level of infinite scrolling for the firing alerts within a rule. This should further improve the rendering speed for the /alerts page for Prometheus setups with many firing alerts and when you expand the individual rule panels that contain those firing alerts. Fixes #17254 Signed-off-by: Julius Volz <julius.volz@gmail.com>
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Feb 14, 2026
…ometheus#17486) We already have infinite scrolling for all the rules within a group, but this adds a second (nested) level of infinite scrolling for the firing alerts within a rule. This should further improve the rendering speed for the /alerts page for Prometheus setups with many firing alerts and when you expand the individual rule panels that contain those firing alerts. Fixes prometheus#17254 Signed-off-by: Julius Volz <julius.volz@gmail.com>
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We already have infinite scrolling for all the rules within a group, but this adds a second (nested) level of infinite scrolling for the firing alerts within a rule.
This should further improve the rendering speed for the /alerts page for Prometheus setups with many firing alerts and when you expand the individual rule panels that contain those firing alerts.
Before vs. after:
alerts-infinite-scroll.mp4
Which issue(s) does the PR fix:
Fixes #17254
Does this PR introduce a user-facing change?