Received exception from server (version 20.4.5): Code: 159. DB::Exception: Received from localhost:9000. DB::Exception: Watching task /clickhouse/task_queue/ddl/query-0000000089 is executing longer than distributed_ddl_task_timeout (=180) seconds. There are 6 unfinished hosts (0 of them are currently active), they are going to execute the query in background.
使用docker安裝clickhouse時，執行ddl會出現如上報錯，可能原因是docker的hosts與宿主機hosts的問題。詳情安裝如下。
轉載：https://www.cnblogs.com/EminemJK/p/15138536.html