Bug 1939732 - Resource Pressure Causes Dropped Probes, Leading to Server Death
Summary: Resource Pressure Causes Dropped Probes, Leading to Server Death
Keywords:
Status: CLOSED DUPLICATE of bug 1937916
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: kube-apiserver
Version: 4.7
Hardware: Unspecified
OS: Unspecified
high
urgent
Target Milestone: ---
: ---
Assignee: Abu Kashem
QA Contact: Ke Wang
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-03-16 22:07 UTC by Steve Kuznetsov
Modified: 2021-03-29 11:57 UTC (History)
6 users (show)

Fixed In Version:
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Environment:
Last Closed: 2021-03-29 11:57:04 UTC
Target Upstream Version:
Embargoed:

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Description Steve Kuznetsov 2021-03-16 22:07:04 UTC 
The Kube and OpenShift API servers have a bug where resource pressure causes flowstates to drop requests for /readyz and /healthz, causing the process to be killed. Even under pressure, the servers should continue responding to these probes.

Please see the data in this post-mortem:
https://docs.google.com/document/d/1VfwmECbpCnDTOb0JVE37wcEQm4KnGwbatgIynTa6Wvg/edit#heading=h.te8j1fpvmstb
Comment 1 W. Trevor King 2021-03-18 23:52:11 UTC 
Dup of bug 1937916?
Comment 2 Michal Fojtik 2021-03-29 11:57:04 UTC 

*** This bug has been marked as a duplicate of bug 1937916 ***
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