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Fixed bug #41964: --controlmaster not sems to reuse OpenSSH connections to the same host

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This commit is contained in:
Ole Tange 2014-04-05 16:02:13 +02:00
parent 67a874362f
commit f2c1f65a5a
3 changed files with 13 additions and 9 deletions
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4
doc/release_new_version
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@ -221,12 +221,16 @@ New in this release:
* GNU Parallel was used (unfortunately with improper citation) in: Perspectives in magnetic resonance: NMR in the post-FFT era http://www.sciencedirect.com/science/article/pii/S1090780713003054
* Org-mode with Parallel Babel http://draketo.de/english/emacs/parallel-babel#sec-2
* Speeding Up Grep Log Queries with GNU Parallel http://www.cybersecurity.io/speeding-grep-queries-gnu-parallel/
* How to run tbss_2_reg in parallel http://tadpolebrainimaging.blogspot.dk/2014/03/how-to-run-tbss2reg-in-parallel.html
* Iterative DNS Brute Forcing http://www.room362.com/blog/2014/02/19/iterative-dns-brute-forcing/
* Ejecutando comandos en paralelo http://jesusmercado.com/guias/ejecutando-comandos-en-paralelo/
* Bug fixes and man page updates.

16
src/parallel
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@ -3833,13 +3833,15 @@ sub sshcommand_of_sshlogin {
$Global::sshmaster{$pid} ||= 1;
} else {
$SIG{'TERM'} = undef;
# OpenSSH_3.6.1p2 gives 'tcgetattr: Invalid argument' with -tt
# STDERR >/dev/null to ignore "process_mux_new_session: tcgetattr: Invalid argument"
open(STDERR,">","/dev/null");
open(STDIN,"<","/dev/null");
# Run a sleep that outputs data, so it will discover if the ssh connection closes.
my $sleep = ::shell_quote_scalar('$|=1;while(1){sleep 1;print "foo\n"}');
my @master = ("ssh", "-tt", "-MTS", $control_path, $serverlogin, "perl", "-e", $sleep);
# Ignore the 'foo' being printed
open(STDOUT,">","/dev/null");
# OpenSSH_3.6.1p2 gives 'tcgetattr: Invalid argument' with -tt
# STDERR >/dev/null to ignore "process_mux_new_session: tcgetattr: Invalid argument"
open(STDERR,">","/dev/null");
open(STDIN,"<","/dev/null");
# Run a sleep that outputs data, so it will discover if the ssh connection closes.
my $sleep = ::shell_quote_scalar('$|=1;while(1){sleep 1;print "foo\n"}');
my @master = ("ssh", "-tt", "-MTS", $control_path, $serverlogin, "perl", "-e", $sleep);
::debug("@master\n");
exec(@master);
}

2
testsuite/tests-to-run/parallel-local-ssh2.sh
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@ -8,6 +8,4 @@ echo '### --wd no-such-dir'
stdout parallel --wd /no-such-dir -S csh@localhost echo ::: 1; echo Exit code $?
stdout parallel --wd /no-such-dir -S tcsh@localhost echo ::: 1; echo Exit code $?
stdout parallel --wd /no-such-dir -S parallel@localhost echo ::: 1; echo Exit code $?
EOF