So following the advice on the link above and another page it references, I got this:

my $pid = $ssh->spawn({ssh_opts=> '-fL 127.0.0.1:12345:127.0.0.1:3306'
+}, 'sleep 10');

[download]

The big advantage is no more sleep command (except on the remote machine but that doesn't delay anything). Nice.

And, apparently, as long as you do a query within 10 seconds it will work and it will autoclose the tunnel after that.

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In reply to Re^3: How do you use Net::OpenSSH to query mysql database via ssh tunnel by nysus
in thread How do you use Net::OpenSSH to query mysql database via ssh tunnel by nysus

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