Bug 1657680

Summary:	Alerts are not raised for Cached memory
Product:	[Red Hat Storage] Red Hat Gluster Storage	Reporter:	Filip Balák <fbalak>
Component:	web-admin-tendrl-notifier	Assignee:	gowtham <gshanmug>
Status:	CLOSED WONTFIX	QA Contact:	sds-qe-bugs
Severity:	low	Docs Contact:
Priority:	low
Version:	rhgs-3.4	CC:	mbukatov, rhs-bugs, sankarshan
Target Milestone:	---	Keywords:	Improvement, ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-05-08 19:53:21 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:

Description Filip Balák 2018-12-10 09:40:50 UTC

Description of problem:
Alerts are not raised when Cached memory is utilized.

Version-Release number of selected component (if applicable):
tendrl-ansible-1.6.3-10.el7rhgs.noarch
tendrl-api-1.6.3-8.el7rhgs.noarch
tendrl-api-httpd-1.6.3-8.el7rhgs.noarch
tendrl-commons-1.6.3-13.el7rhgs.noarch
tendrl-grafana-plugins-1.6.3-16.el7rhgs.noarch
tendrl-grafana-selinux-1.5.4-2.el7rhgs.noarch
tendrl-monitoring-integration-1.6.3-16.el7rhgs.noarch
tendrl-node-agent-1.6.3-11.el7rhgs.noarch
tendrl-notifier-1.6.3-4.el7rhgs.noarch
tendrl-selinux-1.5.4-2.el7rhgs.noarch
tendrl-ui-1.6.3-14.el7rhgs.noarch

How reproducible:
100%

Steps to Reproduce:
1. Import cluster into WA.
2. Utilize cached memory with `stress-ng` tool.
For example: stress-ng --vm 1 --vm-bytes N
where N is 90% of total memory
3. Check alerts (UI, mail, snmp)

Actual results:
No alert is generated.

Expected results:
There should be alert that memory is utilized.

Additional info:
Alerts for Used memory are generated.

Comment 2 Martin Bukatovic 2018-12-10 17:11:37 UTC

Thinking this over, I'm not sure customers would be interested in alerts about Cached memory utilization. Let's also check if the change you describe here wasn't done to improve clarify on how to memory utilization is reported (among fixes for RHGSWA 3.4.0).