Could you try to reduce the code to the minimum needed to reproduce the problem? (http://sscce.org/)

I've seen people suggest its use once in a while so I don't want to spread too much FUD, however, it might be noteworthy that Net::OpenSSH::Parallel was last released over two years ago and has no test suite. Quote from Net::OpenSSH::Parallel: "Some people find easier to use Net::OpenSSH combined with Parallel::ForkManager, ..."

In reply to Re: Net::OpenSSH::Parallel with sudo commands by Anonymous Monk
in thread Net::OpenSSH::Parallel with sudo commands by thanos1983

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