Home Page Cluster List Scales Badly

[richard-cox]

Setup

• Rancher version: 2.9.1 (and before?)

Describe the bug

• The home page cluster list should have local pagination
• List has shown to scale badly when trying to show ~700 rows
  • 17 seconds churn to filter by text (could be improved by not re-rendering lots)
    • https://github.com/rancher/dashboard/issues/11994
  • 13 second list re-render blocking navigation to downstream cluster

To Reproduce

• Load ~700 clusters (they could be RKE2 Custom)
• nav to home page

Result

• all 700 clusters shown

Expected Result

• one page of X shown (given user pref

[richard-cox]

/backport v2.9.3

[richard-cox]

Note - https://github.com/rancher/dashboard/pull/11998 contains a 2.9.3 fix

[richard-cox]

Release Note (combined with https://github.com/rancher/dashboard/issues/11993)

The performance of the Clusters lists in the Home page and the Side Menu has greatly improved when there hundreds of clusters.

[izaac]

Rancher version: 2.10.0-alpha6 UI version: v2.10.0-alpha4 Rancher repro version: 2.9.1 k8s: 1.29 as HA with 3 all roles t3a.xlarge nodes. Cluster count: 701 (includes local) Browser: 130.0.6723.92 (Official Build) (arm64) (To utilize the performance tools). Cache disabled. Server-side Pagination: Disabled

The performance on 2.10.0 is noticeable. On 2.9.1 the home page loaded in not less that ~45 seconds and not completing the Cluster list rendering.

On 2.10.0 the loading times where consistent at around 5 seconds and the Cluster list was rendered properly and paginated as expected.

2.9.1:

2.10.0: