Error from re.sh script due to missing python3 file post NetOps upgrade

Products

• Network Observability
• CA Performance Management

Issue/Introduction

RE script having problems in the lab

When running the (default path) /opt/CA/PerformanceCenter/RemoteEngineer/re.sh script in a recently upgraded DX NetOps Portal web server host we get an error.

The error states: "/user/bin/env: python3: No such file or directory"

The issue can be seen on Portal web servers, Data Aggregator and Data Collector hosts.

Environment

All supported DX NetOps Performance Management Portal web server, Data Aggregator and Data Collector releases 22.2.8 or newer

Cause

Starting with DX NetOps releases 22.2.8 or newer OS level python3.6+ is now a requirement for the re.sh script.

This was not properly documented to alert customers to the requirement.

Resolution

Install python3.6+ on the servers to resolve the re.sh script run failures.

Do you have Python 3 installed on this host?

Run:

python3 --version

You should get this output:

[root@DC_hostname RemoteEngineer]# python3 --version
Python 3.6.8

If not, install python3

# python3 --version-bash: python3: command not found
 yum install -y python3

 

Additional Information

Defect DE568140 has been submitted to engineering for documentation updates to correct the missing requirement.