Re: Cron sometimes starts two jobs from the same crontab entry

[Samuel Sieb]

On 4/6/20 11:07 PM, Terry Barnaby wrote:
> This system has been in use for 10 years or more on various Fedora 
> versions. However about 18 months ago I have seen a problem where cron 
> will start two backups with identical start times occasionally.
>
> I have had to add a file lock system in the bbackup-beam to cope with this.
>
> Any idea on why cron might start the same job off twice at the same time 
> ? Could there be a time change issue with chronyd ?

Have you checked the logs to see when the jobs were started and if there 
are any relevant messages?