Bug 1795387

Summary: The Query Browser page under monitoring flickers black when the page lists a lot of information [4.4]
Product: OpenShift Container Platform Reporter: bpeterse
Component: Management ConsoleAssignee: Andrew Pickering <anpicker>
Status: CLOSED ERRATA QA Contact: Junqi Zhao <juzhao>
Severity: low Docs Contact:
Priority: unspecified    
Version: 4.4CC: aos-bugs, cvogel, jokerman, juzhao
Target Milestone: ---   
Target Release: 4.6.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-10-27 15:54:52 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:
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Description Flags
Animated gif of the described phenomenon
none
reproduced with FF 75.0 (64-bit)
none
issue is fixed,the table is rendered as a grid none

Description bpeterse 2020-01-27 20:20:44 UTC
Description of problem:

Enter a query that returns a lot of data, for example:
- https://console-openshift-console.apps.<your-cluster-id>.devcluster.openshift.com/monitoring/query-browser?query0=kube_pod_labels
- "kube_pod_labels"
- click "run queries"
- scroll down the page

At arbitrary intervals (10-20 seconds) the entire page, including sidebar menus, will flicker black for a moment.

Comment 1 bpeterse 2020-01-27 20:21:50 UTC
Created attachment 1655746 [details]
Animated gif of the described phenomenon

Comment 2 Andrew Pickering 2020-05-13 08:13:24 UTC
This is a performance issue with the huge number of labels rendered to the screen by this query. (It is the table, rather than the graph that causes the issue).

I am investigating possible solutions (there are several possible approaches we can take to reduce the number of labels being rendered).

I also tried with the latest PatternFly 4.0 major release, but that doesn't help.

Comment 9 Junqi Zhao 2020-06-22 09:22:41 UTC
Created attachment 1698266 [details]
reproduced with FF 75.0 (64-bit)

Comment 12 Junqi Zhao 2020-06-23 07:44:24 UTC
tested with FF 75.0 (64-bit)/Chrome 79.0.3945.130 (Official Build) (64-bit) on 4.6.0-0.nightly-2020-06-23-002207, the table is rendered as a grid, and have not found the page flickers black

Comment 13 Junqi Zhao 2020-06-23 07:45:04 UTC
Created attachment 1698399 [details]
issue is fixed,the table is rendered as a grid

Comment 15 errata-xmlrpc 2020-10-27 15:54:52 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 (OpenShift Container Platform 4.6 GA Images), 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-2020:4196