Azure: Linux: Error: waagent-extn.logrotate:1 duplicate log entry

Suddenly, received email notices about the error in file  waagent-extn.logrotate .

$ sudo /usr/sbin/logrotate -s /var/lib/logrotate/logrotate.status /etc/logrotate.conf

error: waagent-extn.logrotate:1 duplicate log entry for /var/log/azure/Microsoft.Azure.Diagnostics.LinuxDiagnostic/extension.log
error: found error in file waagent-extn.logrotate, skipping


Checked the WALinuxAgent. It was the latest version.
$ sudo yum list WALinuxAgent


Run:
$ grep -rnw /etc/logrotate.d/ -e extension.log
/etc/logrotate.d/azure-lad:45:/var/log/azure/Microsoft.Azure.Diagnostics.LinuxDiagnostic/extension.log


Then, identified another config doing the same:
/etc/logrotate.d/waagent-extn.logrotate
/var/log/azure/*/*.log {
    # Old versions of log files are compressed with gzip by default.
    compress

    # Rotate log files > 10 MB, and keep last 10 archived files. With an compression ratio ranging from 5-10%, The
    # archived files would take an average of around 5-10 MB.
    size 10M
    rotate 10

    # Add date as extension when rotating logs
    dateext

    # Formatting the date extension to YYYY-MM-DD-SSSSSSS format. logrotate does not provide hours, mins and seconds
    # option. Adding the %s (system clock epoch time) to differentiate rotated log files within the same day.
    dateformat -%Y-%m-%d-%s

    # Do not rotate the log if it is empty
    notifempty

    # If the log file is missing, go on to the next one without issuing an error message.
    missingok
}


So, why to notice log entry duplicating.

Removed the   /etc/logrotate.d/azure-lad .

Back to normal.


References


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