Do all the tasks involve connecting to the same server with the same authentication credentials? or are there several servers or credential settings?

How does Gearman Perl workers run at the OS level? are they threads inside some master process or are they different processes?

There could be some race condition on the PTY allocation as performed by IO::Pty. Try the strace thing.

In reply to Re^5: Net::SFTP::Foreign works intermittently by salva
in thread Net::SFTP::Foreign works intermittently by JustPerl

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