Bug 1636495
| Summary: | Weekly Growth Rate and Weeks Remaining on 2-6 days old cluster | ||
|---|---|---|---|
| Product: | [Red Hat Storage] Red Hat Gluster Storage | Reporter: | Daniel Horák <dahorak> |
| Component: | web-admin-tendrl-monitoring-integration | Assignee: | gowtham <gshanmug> |
| Status: | CLOSED WONTFIX | QA Contact: | sds-qe-bugs |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rhgs-3.4 | CC: | ebondare, rhs-bugs, sankarshan |
| Target Milestone: | --- | ||
| 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 18:55:31 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: | |||
| Attachments: | |||
Created attachment 1490864 [details]
Weekly Growth Rate and Weeks Remaining panels on 2 days old cluster
Created attachment 1490865 [details]
Graphite graphs of usable_capacity and used_capacity for 2 days old cluster
There is a similar problem with Brick dashboard. While it correctly shows "Weeks Remaining" value as "Insufficient data collected for forecast" if there was no traffic on this node, it gives a misleading value if there was some traffic. For example, I ran the test that increased brick capacity utilization from 0% to 90% within an hour, and it caused the dashboard to show 101 as the value of "Weeks Remaining". Created attachment 1508254 [details]
Misleading value of Weeks Remaining
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Description of problem: On cluster monitored by WA more than one whole day but less than 7 days, panels Weekly Growth Rate and Weeks Remaining shows inaccurate/meaningless values. When the cluster is running less than one day, both mentioned panels shows correctly N/A. When the cluster is running more than 7 days, the values for Weekly Growth Rat and Weeks Remaining are correctly calculated. Version-Release number of selected component (if applicable): RHGS WA Server: collectd-5.7.2-3.1.el7rhgs.x86_64 collectd-ping-5.7.2-3.1.el7rhgs.x86_64 grafana-4.3.2-3.el7rhgs.x86_64 graphite-web-0.9.15-1.el7rhgs.noarch libcollectdclient-5.7.2-3.1.el7rhgs.x86_64 tendrl-ansible-1.6.3-7.el7rhgs.noarch tendrl-api-1.6.3-5.el7rhgs.noarch tendrl-api-httpd-1.6.3-5.el7rhgs.noarch tendrl-commons-1.6.3-12.el7rhgs.noarch tendrl-grafana-plugins-1.6.3-11.el7rhgs.noarch tendrl-grafana-selinux-1.5.4-2.el7rhgs.noarch tendrl-monitoring-integration-1.6.3-11.el7rhgs.noarch tendrl-node-agent-1.6.3-10.el7rhgs.noarch tendrl-notifier-1.6.3-4.el7rhgs.noarch tendrl-selinux-1.5.4-2.el7rhgs.noarch tendrl-ui-1.6.3-11.el7rhgs.noarch How reproducible: 100% Steps to Reproduce: 1. Prepare Gluster Storage Cluster and RHGS WA Server. 2. Import Gluster Cluster into WA. 3. Leave it running for more than 1 day but less than 7 days without any traffic on the storage nodes. Actual results: The Weekly Growth Rate panel for particular volume shows for example 2.0 GiB. The Weeks Remaining panel for particular volume shows for example 89. Expected results: As the cluster is running less than 7 days, it should shows N/A for both values. Additional info: The "diffSeries(#B, #A)" function used in Grafana to calculate the values returns meaningless value instead of N/A, if the first input contains correct data, but the second one is N/A (which happened when the cluster is running more than 1 day, but less than a week).