rails/rails — comment on commit cff19cf545de61ada8904d9d3daaaa594a9a931f
File:  line 0
By fxn:

I know of an application that reports lost connections often. It is a busy application (about 40K rpm). A priori seems strange because the connection pool does a mysql_ping on checkout, so you got a successful ping and just milliseconds later the connection is lost (or the server gone, also happens). The MySQL server on the other hand seems to be doing fine.

Not saying it is related to this patch, just a followup.