release-v2.4.16-20201104

2020-11-04 Alibaba Cloud.

* version: 2.4.16
* IMPROVE: ignore error when meets namespace not found error in delete
operation in single writer. #467
* IMPROVE: when "incr_sync.mongo_fetch_method == oplog", support upsert
if target is sharding. #380
* BUGFIX: fix bug that using change_stream mode can't fetch any data in
kafka tunnel with "checkpoint.start_position = 1970-01-01T00:00:00Z".
#475.