mysql提示Packet for query is too large (1142 > 1024)解决方案
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MySQL根据配置文件会限制server接受的数据包大小,
有时候大的插入和更新会被max_allowed_packet 参数限制掉,导致失败,提示“Packet for query is too large (1142 > 1024)”。
查看目前配置
show VARIABLES like '%max_allowed_packet%'; 默认为1M
show VARIABLES like '%max_allowed_packet%'; 默认为1M
改为更大的值:
set global max_allowed_packet = 2*1024*1024*10;
断开链接后,再重新进入MySQL查询即发现已生效。如果不重新进去查询则该值不会变。
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