Cleaning history from old data

Flowable Engine
1

Hi All
I am trying to clean history from old data like certain processes and their variables as well. And have found that the method historyService.deleteHistoricProcessInstance(id); does not delete variables.
It just removes the processes (from act_hi_procinst) and activities (from act_hi_actinst)
but tables act_hi_varinst and act_ge_bytearray still contain the records related to the deleted processes.
Please advise how correctly do remove old data from history.
Thank you.

2

I’ve found that the history level in my configuration is set in NONE. Changing it to ACTIVITY resolves my problem.
But then don’t understand why I see process and variables for it when history level = none

3

If the history level is set to none, there shouldn’t be any history data.
Are you sure this data was created by an engine that had that setting set?

4

thank for reply. you lead me to the thought that it might be a default engine with non NONE value worked along with my one in the system. lets me check…