ACK Queue: readme example for SQLiteAckQueue missing clear_acked_data()

[employee-1234567]

Unless I'm missing something, it seems the ACKQueue does not clean up after its self when you ACK the items. I discovered this function by looking over the unit tests. Is it expected that users call this function manually? It seems that clear_acked_data() should always be called after ackq.ack(item) if you don't want the sqlite DB to grow unbounded?

[peter-wangxu]

Looks like dup of #78

[employee-1234567]

I filed these as separate issues as I see this as a documentation issue. Basically, what this issue is asking is "do you expect users to explicitly call clear_acked_data()?" If so it should be added to the example in the readme and not left for someone to accidentally find it buried in the unit tests

[dcj]

Yes, I have this same question, should users explicitly call clear_acked_data(), and if so, when/how often?

[peter-wangxu]

please check it out in latest doc