First of all,
# Wait for the MySQL server to become responsive.
my $tries = 0;
while ( !$dbh->ping && $tries++ < $opts{w} ) {
sleep(1);
I'd print some debug messages before the sleep() call. If they don't show up, it means the ping never returns.
In that case I'd set up a local $SIG{ALRM} = \&report_fail and drag the flow out of the $dbh->ping,
printing as much informative message I can get from the current scope, DBI or the system all that runs on.
If that fails to give me a clue, I'd go on with wiretapping (e.g. wireshark), then tracing/trussing the involved
processes.
--shmem
_($_=" "x(1<<5)."?\n".q·/)Oo. G°\ /
/\_¯/(q /
---------------------------- \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}
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