Apache log errors

[Krishna Chandra Prajapati]

Hi All,

My web server log error is " NULL::dba can't connect to mysql"

The above error shows occasionally in the error log file of apache. Every
thing is fine on the mysql database server. It happens twice or thrice a
day. I am not able to find out whats the issue.

Please help me.

Thanks,
Krishna Chandra Prajapati