Unless you're very cozy with the database backend (enough
so that you can figure out how to do some sort of locking
of whatever communications mechanism it's using to talk
to its server), you really don't want to do this. This
is why things such as Apache::DBI usually set
up persistent handles after the child processes have forked.
Check out POE::Component::DBIAgent and POE
for another possibility.
As for the second, DBI has a ping method. Check the docs.
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