ccqlMySQL 并行客户端

ccql 是 Github 官方开发的一个 MySQL 客户端工具，可以并行支持多个 MySQL 服务器，相当于同时在多个 MySQL 服务器上执行命令。

用法

Usage of ccql:
  -C string
        Credentials file, expecting [client] scope, with 'user', 'password' fields. Overrides -u and -p
  -H string
    	Hosts file, hostname[:port] comma or space or newline delimited format. If not given, hosts read from stdin
  -Q string
    	Query/queries input file
  -d string
      Default schema to use (default "information_schema")
  -h string
    	Comma or space delimited list of hosts in hostname[:port] format. If not given, hosts read from stdin
  -m uint
    	Max concurrent connections (default 32)
  -p string
    	MySQL password
  -q string
    	Query/queries to execute
  -s string
      List of databases to query from; overrides -d, prints schema name to output
  -t float
    	Connect timeout seconds
  -u string
    	MySQL username (default OS user)