Description of problem:
I am not going to spend time detailing this problem, it's been described in great details here: https://docs.google.com/document/d/1Cw5vt6DLh7-9KkCmXkI55svPhFl7XpdxcEWRrJEnoWk/edit
Short summary: CI runs on build02 have a higher flake rate than build01, the most flakes all seem to have the same cause: "dial tcp i/o timeout CI_CLUSTER"
This has lead to build02 being temporarily decommissioned, but it is needed for the CI team to be able to perform "no-down time" upgrades (i.e: lifting load from build01 / build02 while one or the other is upgrading OCP version)
It is not necessarily an openshift-sdn bug, but it's networking related (or at least networking exposes it)....and hey, someone's gotta do it.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
this issue has been fixed and move it to 'verified'
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 (Moderate: OpenShift Container Platform 4.7.0 security, bug fix, and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.