### ClickHouse release v21.8.14.5-lts FIXME as compared to v21.8.13.6-lts

#### Bug Fix (user-visible misbehaviour in official stable or prestable release)

* Backported in [#33184](https://github.com/ClickHouse/ClickHouse/issues/33184): Server might fail to start if database with `MySQL` engine cannot connect to MySQL server, it's fixed. Fixes [#14441](https://github.com/ClickHouse/ClickHouse/issues/14441). [#32802](https://github.com/ClickHouse/ClickHouse/pull/32802) ([Alexander Tokmakov](https://github.com/tavplubix)).
* Backported in [#33659](https://github.com/ClickHouse/ClickHouse/issues/33659): Fix hdfs url check that didn't allow using HA namenode address. Bug was introduced in https://github.com/ClickHouse/ClickHouse/pull/31042. [#32976](https://github.com/ClickHouse/ClickHouse/pull/32976) ([Kruglov Pavel](https://github.com/Avogar)).
* Backported in [#33206](https://github.com/ClickHouse/ClickHouse/issues/33206): Fix s3 table function reading empty file. Closes [#33008](https://github.com/ClickHouse/ClickHouse/issues/33008). [#33037](https://github.com/ClickHouse/ClickHouse/pull/33037) ([Kseniia Sumarokova](https://github.com/kssenii)).