There was a bug on Net::SFTP::Foreign::Backend::Net_SSH2 0.04.

Get the new 0.05 I have just uploaded to CPAN or just use privatekey instead of key_path: 

my $sftp = Net::SFTP::Foreign->new( host => 'delivery.myserver.com',
                                    port => '22',
                                    backend => 'Net_SSH2',
                                    user => 'ftp_user',
                                    privatekey => "mytransaction.priva
+te.key");

[download]

In reply to Re^5: Net::SFTP::Foreign is slow by salva
in thread Net::SFTP::Foreign is slow by ssubrat77

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