没有解决,隔一段时间就会报这个超时错误
在 2020-10-14 17:33:30,"superainbower" <[email protected]> 写道: >HI >链接超时的问题,你后来解决了吗?能告诉下怎么解决的吗? >| | >superainbower >| >| >[email protected] >| >签名由网易邮箱大师定制 > > >在2020年08月31日 15:57,酷酷的浑蛋<[email protected]> 写道: >关键是在sql中怎么设置,connector=jdbc > > > > >在2020年08月31日 15:06,13580506953<[email protected]> 写道: >这个问题本质是连接活性问题, >连接数据库超时设置autoReconnect=true(mysql5以上的,设置autoReconnect=true 是无效的 只有4.x版本,起作用) > > >建议使用连接池druid进行连接活性保持 > > >原始邮件 >发件人: 酷酷的浑蛋<[email protected]> >收件人: user-zh<[email protected]> >发送时间: 2020年8月28日(周五) 15:02 >主题: flink1.11连接mysql问题 > > >com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet >successfully received from the server was 52,445,041 milliseconds ago. The >last packet sent successfully to the server was 52,445,045 milliseconds ago. >is longer than the server configured value of'wait_timeout'. You should >consider either expiring and/or testing connection validity before use in your >application, increasing the server configured values for client timeouts, >orusing the Connector/J connection property 'autoReconnect=true' to avoid this >problem. flink连接mysql,在过了一定时间后,就断开连接了,设置'autoReconnect=true’也不管用
