During upgrade of Data Repository the prerequisite checks failed. We can see from the install log (install_log_install_09-26-2020_03-43-48):
Prerequisites not fully met during local (OS) configuration for
verify-<IP ADDRESS>.xml:
HINT (S0305): https://my.vertica.com/docs/9.1.x/HTML/index.htm#cshid=S0305
TZ is unset for dradmin. Consider updating .profile or .bashrc
Prerequisites not fully met during local (OS) configuration for
verify-<IP ADDRESS>.xml:
HINT (S0305): https://my.vertica.com/docs/9.1.x/HTML/index.htm#cshid=S0305
TZ is unset for dradmin. Consider updating .profile or .bashrc
FAIL (S0020): https://my.vertica.com/docs/9.1.x/HTML/index.htm#cshid=S0020
Readahead size of (/dev/mapper/mpathh) is too low for typical systems:
256 < 2048
Prerequisites not fully met during local (OS) configuration for
verify-<IP ADDRESS>.xml:
HINT (S0305): https://my.vertica.com/docs/9.1.x/HTML/index.htm#cshid=S0305
TZ is unset for dradmin. Consider updating .profile or .bashrc
Detected significant differences in the cluster:
HINT: Differences in RAM (kbytes):
verify-<IP ADDRESS>.xml: 263876004
verify-<IP ADDRESS>.xml: 263876008
verify-<IP ADDRESS>.xml: 263876096
For more information, see
https://my.vertica.com/docs/9.1.x/HTML/index.htm#cshid=CLREQ01
System prerequisites failed. Threshold = FAIL
Hint: Fix above failures or use --failure-threshold
Dx NetOps Performance Management
FAIL (S0020): https://my.vertica.com/docs/9.1.x/HTML/index.htm#cshid=S0020
Readahead size of (/dev/mapper/mpathh) is too low for typical systems:
256 < 2048
After the changes were made as per the Vertica link below, the second installation attempt during the prereq checks passed. The Vertica installation was successful.
https://my.vertica.com/docs/9.1.x/HTML/index.htm#cshid=S0020
As pointed out this is an upgrade from previous version. The Vertica setting was probably an optional. Now going forward this is mandatory.