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Bug 1779076

Summary:	WithDashboardResources HOC has incorrect comparison for alerts results
Product:	OpenShift Container Platform	Reporter:	Rastislav Wagner <rawagner>
Component:	Management Console	Assignee:	Rastislav Wagner <rawagner>
Status:	CLOSED ERRATA	QA Contact:	Yadan Pei <yapei>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.2.0	CC:	aos-bugs, bparees, jokerman, rhrazdil, spadgett
Target Milestone:	---
Target Release:	4.4.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	Cause: The comparison of new and previous alerts was not correct. Consequence: Status card in Dashboards page may rerender frequently causing performance issues. Fix: Fixed the new/previous comparison logic. Result: Status card is rerendered only when alerts actually changed.	Story Points:	---
Clone Of:
Clones:	1781053 (view as bug list)		Environment:
Last Closed:	2020-05-13 21:53:38 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1781053, 1781055

Description Rastislav Wagner 2019-12-03 08:53:45 UTC

Description of problem:
shouldComponentUpdate of WithDashboardResources HOC should compare old results of alerts vs new ones but it actually compares new alerts vs old prometheus results which is never true. In case a component watches alerts, this may cause performance problems due to unnecessary rerenders.

The issue is already fixed in 4.3 by https://github.com/openshift/console/pull/2805

Comment 2 Radim Hrazdil 2019-12-09 08:25:47 UTC

Verified

Comment 4 errata-xmlrpc 2020-05-13 21:53:38 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:0581