database lock issue

[Ali-Razmjoo]

Hi,

in some modules when there are a lots of events submitting to db, i got a lot of failure error with database lock, we need to re-architect the whole thing, it use a lots of IO, unnecessary memory, CPU, etc.

Bests. Ali.

[Ali-Razmjoo]

possible solution: https://github.com/litements/litequeue