pbs delete_tasks does not delete all the tasks

[alejandrodob]

not all the tasks are deleted, sometimes it takes several attempts to delete them completely.

[teleyinex]

I guess the issue is how it's handled in the backend. We've have discussed about this in the past. I think we'll need to actually move the delete to a backend job. Basically, the first delete marks the tasks and associated elements to be deleted and make them not accessible, and then a backend job looks for those items and get deleted, taking the time it needs to check all the FK. What do you think?

[alejandrodob]

The thing is that, when experiencing the issue you describe with the web interface, none of the tasks is deleted, while with pbs some of them are, but not all of them. Also, this has happened to me with a relatively small amount of tasks to be deleted (27) and with such on the web I've never seen this happen. That makes me think that maybe there's another reason behind this. We need to investigate further.