Although I see several examples of using the HistoryCleaningTimeCycleConfig, I’ve not found the description of each parameter. For example, processEngineConfiguration.setHistoryCleaningTimeCycleConfig(“0 0 1 * * ?”). I think the “1” indicates to run the job at 1 am. But where do I find the description of the rest of the values?
Hi @wendy
There are three properties you can set for the history clean up:
// enabling / disabling the history clean up
flowable.enable-history-cleaning=true
// when should a history instance be deleted (e.g.ended 365 days prior)
flowable.history-cleaning-after-days=365
// When should the history clean up job run (cron expression) (e.g. every night at 1am)
flowable.history-cleaning-cycle=0 0 1 * * ?
see also https://flowable.com/open-source/docs/bpmn/ch11-History/#history-cleaning
Regards,
Simon
Ah, thanks Simon. I hadn’t recognized that format as Cron. Makes sense!
Based on Cron examples I’m seeing, I’m a little confused. Would “0 0 1 * * ?” be the first day of the month rather than every night at 1 am?
The third parameter stays for the hours.
0 0 0 1 * ? would be the first day of every month.
see also Cron Expressions
thanks again Simon. I appreciate your help!