I'm trying to see how IPC::PerlSSH behaves in case the underlying ssh connection gets disconnected.

It seems to terminate my program even escaping an eval block...

use IPC::PerlSSH;

eval {
    my $ips = IPC::PerlSSH->new( Host => "somehost" );
    print $ips->eval("1")."\n";
    <>; # allow me to cut ssh connection
    print $ips->eval("2")."\n";
};
if ($@) {
    print "error: $@";
}
print "done\n";

[download]

Normally the program runs as expected:

$ perl test_ipc_perlssh.pl 
1
[pressed enter]

2
done
$

[download]

Now when I kill the sshd on the remote host during the <>

$ perl test_ipc_perlssh.pl 
1
[killed sshd on remote]
Connection to somehost closed by remote host.
[pressed enter]

$

[download]

Not getting "2" means it didn't survive the connection cut, ok.

But why don't I get "done" or perhaps "error:" ? It seems to exit my program.

I had the exact same issue with GRID::Machine. I want to use GRID::Machine (or IPC::PerlSSH) in a daemon...

Any hints ?

In reply to SSH disconnect and IPC::PerlSSH (or GRID::Machine) by wiliv

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