Sat, 20 Feb 2016 20:06:57 +0100 Federico Giannici <giann...@neomedia.it> > In a server (OpenBSD amd64 5.7) with many concurrent perl programs that > have to open a lot of SSH connections, I get many errors like this:
Have you tried connection sharing with ssh(1) yet? Does the Net:SSH give you this? > connect() on closed socket GEN136 at > /usr/local/libdata/perl5/site_perl/Net/SSH/Perl.pm line 216. > > Maybe at some point no more sockets can be opened because of some limit > is reached? > > I already tried to set these in sysctl.conf: > > kern.maxfiles=20000 > kern.somaxconn=1024 > > And set this in login.conf: > > openfiles-cur=1024 > > But it didn't solved. > > Any suggestion of what a can look at? You could start simple and then advance to the complete programmatic solution. Possibly, but not necessarily limited to these: ssh(1) connection sharing ksh(1) ulimit login.conf(5) Maybe just then work on the eventual Perl related issues after you confirm you can achieve the desired results with plain shell commands, one liner (scripts) and direct ssh client connect using connection sharing.
