Bug 1868922 - [Docs] Document debugging cluster performance issues with Prometheus
Summary: [Docs] Document debugging cluster performance issues with Prometheus
Keywords:
Status: CLOSED DEFERRED
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Documentation
Version: 4.6
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
: 4.6.z
Assignee: Tami Love
QA Contact: ge liu
Latha S
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-08-14 11:19 UTC by oarribas
Modified: 2024-03-25 16:18 UTC (History)
8 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-03-09 00:58:58 UTC
Target Upstream Version:
Embargoed:
oarribas: needinfo-

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1790551 0 medium CLOSED Etcd storage requirements 2024-01-06 04:27:31 UTC
Red Hat Bugzilla 1853618 0 high CLOSED [DDF] Add latency recommendations between the different kinds of servers, specifically for masters. 2024-03-25 16:08:25 UTC
Red Hat Bugzilla 1868343 0 unspecified CLOSED Provide working solution (toolbox or dd) to test etcd performance and document it well. 2023-12-15 18:49:27 UTC
Red Hat Knowledge Base (Solution) 4770281 0 None None None 2021-01-18 18:20:15 UTC
Red Hat Knowledge Base (Solution) 4885641 0 None None None 2020-08-14 11:19:33 UTC
Red Hat Knowledge Base (Solution) 4929021 0 None None None 2020-08-14 11:19:33 UTC
Red Hat Knowledge Base (Solution) 5013531 0 None None None 2020-09-01 16:36:21 UTC
Red Hat Knowledge Base (Solution) 5060021 0 None None None 2020-10-07 08:44:18 UTC
Red Hat Knowledge Base (Solution) 5141931 0 None None None 2020-09-01 16:36:21 UTC

Internal Links: 1790551

Description oarribas 2020-08-14 11:19:34 UTC 
Description of problem:
Provide a supported tool to test ETCD performance, as bad performance of ETCD is a common cause of issues in OpenShift clusters.

Currently, there are KCS to test the ETCD disk performance using fio [1] [2], but the tool is not included in any supported image, and also not supported to use the fedora image.


Version-Release number of selected component (if applicable):
All OCP 4 versions, including 4.5


How reproducible:
See [1] and [2]


Actual results:
No supported tool to test ETCD performance


Expected results:
Documented and supported tools to test ETCD performance



[1] https://access.redhat.com/solutions/4885641
[2] https://access.redhat.com/solutions/4929021
Comment 14 Shubha Narayanan 2021-09-01 10:06:25 UTC 
@oarribas - Is this bug still valid. Looks like all the fixes have been tracked through another bug that's already closed https://bugzilla.redhat.com/show_bug.cgi?id=1853618 . Kindly confirm.
Comment 16 Shubha Narayanan 2021-09-15 04:06:41 UTC 
As per SME, the debugging steps for all etcd issues are available in etcd runbook. Here's the link: https://github.com/openshift/runbooks/tree/master/alerts/cluster-etcd-operator. Since we do not link or replicate the content available in runbook, closing this bug.
Comment 25 Shiftzilla 2023-03-09 00:58:58 UTC 
OpenShift has moved to Jira for its defect tracking! This bug can now be found in the OCPBUGS project in Jira.

https://issues.redhat.com/browse/OCPBUGS-8791
Comment 26 Red Hat Bugzilla 2023-09-18 00:21:58 UTC 
The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days
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