Log rotate fails for /var/log/vmware on NSX-T Manager and Edge Nodes

Products

• VMware NSX

Issue/Introduction

• The partition '/var/log/vmware'  grow in size.
• The following files may grow quite large:
  • integrity_checker.log
  • top-mem.log
  • top-cpu.log
• The support bundle export fails.
• If you run the command: 
  • /usr/sbin/logrotate -d /etc/logrotate.conf 2>&1 | less
  • The following errors are displayed
    ...
error: appliance-config:3 bad size '12.8'
...
error: appliance-config:17 bad size '51.2'

Note: The command '/usr/sbin/logrotate -d /etc/logrotate.conf 2>&1 | less'  is a debug command and will only read the configuration file to check its correctness.

Environment

VMware NSX

Cause

This issue is caused due to a extra decimal point in the configuration file. This converts the number to a float, which the code does not accept.

Resolution

• In VMware NSX-T 3.1.1 the issue with top-mem.log and top-cpu.log is resolved. However the issue with integrity_checker.log is resolved in VMware NSX-T 3.1.2 and VMware NSX-T 3.2.
  
  
• Workaround:
  • Log in as root on the impacted NSX-T Manager or Edge node.
  • Change directory to: /etc/logrotate.d
  • Then copy the original file as a backup: 
    • cp appliance-config /tmp/appliance-config.bak
  • To edit and replace with correct values, run the following command:
    • sed -i 's/12.8M/13M/g' appliance-config
    • sed -i 's/51.2M/52M/g' appliance-config
  • Remove 'su syslog adm' line from integrity_checker.log file rotate config section:
    • sed -i '/su syslog adm/d' appliance-config

There is no need to restart any services, as there is a cronjob which will read these values the next time it runs.

Additional Information

If this article did not help resolve your issue, you can review the following article for further reference: Troubleshooting disk space related issues on NSX Nodes