以下配置项是影响 MySQL 性能的主要因素:innodb_buffer_pool_size:缓冲池包含缓冲数据和索引。 此值通常设置为物理内存的 70%。 innodb_log_file_size:这是重做日志大小。 重做日志用于确保写入操作快速、可靠并且可在出现故障后恢复。 此值设置为 512 MB,这会为记录写入操作提供大量空间。 max_connections:应用...
max_connections 服务器的内存大小确定max_connections的值。 下表中的物理内存大小表示 Azure Database for MySQL 灵活服务器上的可用 RAM,以千兆字节为单位。 计算大小vCore 数物理内存大小 (GB)默认值最小值最大值 可突发 Standard_B1s118510171 Standard_B1ms1217110341 ...
max_connections 服务器的内存大小确定max_connections的值。 下表中的物理内存大小表示 Azure Database for MySQL 灵活服务器上的可用 RAM,以千兆字节为单位。 计算大小vCore 数物理内存大小 (GB)默认值最小值最大值 可突发 Standard_B1s118510171 Standard_B1ms1217110341 ...
I believe the usual formulae for calculating memory usage is "different" in Azure; certain parameters in Azure (e.g. max_connections and max_allowed_packet) default to extremely high values that would normally be discouraged. I've reduced them but no change in memory usage. ...
大量内存中临时表可能会快速导致 Azure Database for MySQL 灵活服务器实例中的可用内存不足。使用MySQL,临时表大小由两个参数的值决定,如下表所述。展开表 参数说明 tmp_table_size 指定内部内存中临时表的最大大小。 max_heap_table_size 指定用户创建的 MEMORY 表可以增长到的最大大小。
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For php/mySql, use persistent database connections. For Node.js applications making outbound HTTP/HTTPS calls, configure keep-alives so that outbound connections are reused. This configuration is described atbit.ly/2iGrcoo. For .NET applications making outbound HTTP/HTTPS calls, pool and reuse in...
SQL_MAX_IDLE_CONNS:最大空闲连接数,默认为100。 SQL_MAX_OPEN_CONNS:最大打开连接数,默认为1000。 如果报错Error 1040: Too many connections,请适当减小该值。 SQL_CONN_MAX_LIFETIME:连接的最大生命周期,默认为60,单位分钟。 LOG_SQL_DSN:设置之后将为logs表使用独立的数据库,请使用 MySQL 或 PostgreSQL。
The objective of this packet is to ask/infer if the server is open for new connections. The target server must have open ports that can accept and initiate new connections. When the server receives the SYN packet from the client node, it responds and returns a confirmation receipt – the ...
Exception Thrown: Exception: MySql.Data.MySqlClient.MySqlException (0x80004005): error connecting: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached. ...