I suspect your main problem is that you're trying to use the same instance of the SSH connection in all threads.  Creating a new thread doesn't automagically also create a new independent duplicate of the connection (socket, server-side process, and all), so the SSH will probably get mildly confused when multiple clients are talking simultaneously on the same line...

In reply to Re^3: Need help with Perl multi threading by Eliya
in thread Need help with Perl multi threading by ashok.g

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