Mysql应用mysql "too many connections" 错误 之 mys
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《Mysql应用mysql "too many connections" 错误 之 mysql解决方法》要点： set-variable = max_connections=500 或在启动命令中加上参数 max_connections=500 就是修改最大连接数,然后重启mysql.默认的连接数是100,太少了,所以容易出现如题错误. 以下是mysql.com网站的相关说明: If you get a Too many connections error when you try to connect to the mysqld server,this means that all available connections are in use by other clients. The number of connections allowed is controlled by the max_connections system variable. Its default value is 100. If you need to support more connections,you should restart mysqld with a larger value for this variable. mysqld actually allows max_connections+1 clients to connect. The extra connection is reserved for use by accounts that have the SUPER privilege. By granting the SUPER privilege to administrators and not to normal users (who should not need it),an administrator can connect to the server and use SHOW PROCESSLIST to diagnose problems even if the maximum number of unprivileged clients are connected. See Section 13.5.4.19,“SHOW PROCESSLIST Syntax”. The maximum number of connections MySQL can support depends on the quality of the thread library on a given platform. Linux or Solaris should be able to support 500-1000 simultaneous connections,depending on how much RAM you have and what your clients are doing. Static Linux binaries provided by MySQL AB can support up to 4000 connections. MYSQL应用1.可能是mysql的max connections设置的问题 MYSQL应用解决: MYSQL应用原因： MYSQL应用因为你的mysql安装目录下的my.ini中设定的并发连接数太少或者系统繁忙导致连接数被占满 MYSQL应用解决方式： MYSQL应用打开MYSQL安装目录打开MY.INI找到max_connections(在大约第93行)默认是100 一般设置到500～1000比较合适,重启mysql,这样1040错误就解决啦. MYSQL应用一定要重新启动MYSQL才能生效 MYSQL应用CMD-> MYSQL应用net stop mysql MYSQL应用net start mysql MYSQL应用关于改变innodb_log_file_size后无法启动mysql的问题 MYSQL应用innodb_buffer_pool_size=768M MYSQL应用后来才知道原来要STOP服务先,然后再删除原来的文件……… MYSQL应用删除ib_logfile0,ib_logfile1........ib_logfilen （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |