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https://git.savannah.gnu.org/git/parallel.git
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parallel: kill process groups. Fails for --tty jobs.
This commit is contained in:
Ole Tange
parent
e57ec6deec
commit
0ab644d156
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@ -250,7 +250,7 @@ New in this release:
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* GNU Parallel is used in: https://github.com/d2207197/local-mapreduce
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* Job ad asking for GNU Parallel experience: http://searchjobs.intel.com/gdansk-pol/software-validation-engineer/63A06826DAF24797AB414DC146201C2E/job/
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* Bug fixes and man page updates.
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45
src/parallel
45
src/parallel
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@ -1076,7 +1076,7 @@ sub parse_options {
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sub init_globals {
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# Defaults:
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$Global::version = 20150524;
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$Global::version = 20150531;
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$Global::progname = 'parallel';
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$Global::infinity = 2**31;
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$Global::debug = 0;
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@ -3178,6 +3178,8 @@ sub reaper {
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$job->print();
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}
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if($job->should_we_halt() eq "now") {
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# Kill children
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::kill_sleep_seq($job->pid());
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::killall();
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::wait_and_exit($Global::halt_exitstatus);
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}
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@ -3222,17 +3224,20 @@ sub killall {
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$Global::start_no_new_jobs ||= 1;
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$Global::killall ||= 1;
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# pids of the all children and (grand*)children
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# before we start the blood bath
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my @family_pids = family_pids(keys %Global::running);
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my @pids = @family_pids;
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kill_sleep_seq(keys %Global::running);
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}
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sub kill_sleep_seq {
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# Send jobs TERM,TERM,KILL
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my @term_seq = ("TERM",200,"TERM",200,"KILL",200);
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# processgroups (-$pid)
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my @pgrps = map { -$_ } @_;
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my @term_seq = ("TERM",200,"TERM",100,"TERM",50,"KILL",25);
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while(@term_seq) {
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@pids = kill_sleep(shift @term_seq, shift @term_seq, @pids);
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@pgrps = kill_sleep(shift @term_seq, shift @term_seq, @pgrps);
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}
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}
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sub kill_sleep {
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my ($signal, $sleep_max, @pids) = @_;
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::debug("kill","kill_sleep $signal ",(join " ",sort @pids),"\n");
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@ -3261,7 +3266,7 @@ sub kill_sleep {
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$sleep *= 1.1;
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::usleep($sleep);
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$sleepsum += $sleep;
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# Remove (grand)*children that are dead
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# Remove dead children
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@pids = grep { kill( 0, $_) } @pids;
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}
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return @pids;
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@ -3750,7 +3755,7 @@ sub which {
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# ash bash csh dash fdsh fish fizsh ksh ksh93 mksh pdksh
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# posh rbash rc rush rzsh sash sh static-sh tcsh yash zsh
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my @shells = (qw(ash bash csh dash fdsh fish fizsh ksh
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ksh93 mksh pdksh posh rbash rc rush rzsh
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ksh93 lksh mksh pdksh posh rbash rc rush rzsh
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sash sh static-sh tcsh yash zsh -sh -csh),
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'-sh (sh)' # sh on FreeBSD
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);
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@ -6247,6 +6252,12 @@ sub timedout {
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}
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sub kill {
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my $self = shift;
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$self->set_exitstatus(-1);
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::kill_sleep_seq($self->pid());
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}
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sub _kill {
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# Kill the job.
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# Send the signals to (grand)*children and pid.
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# If no signals: TERM TERM KILL
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@ -6265,9 +6276,9 @@ sub kill {
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for my $signal (@send_signals) {
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my $alive = 0;
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for my $pid (@family_pids) {
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if(kill 0, $pid) {
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if(CORE::kill 0, $pid) {
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# The job still running
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kill $signal, $pid;
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CORE::kill $signal, $pid;
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$alive = 1;
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::debug("run","$pid is alive\n");
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}
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@ -6278,7 +6289,7 @@ sub kill {
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if($signal eq "TERM" and $alive) {
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# Wait up to 200 ms between TERMs - but only if any pids are alive
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my $sleep = 1;
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for (my $sleepsum = 0; kill 0, $family_pids[0] and $sleepsum < 200;
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for (my $sleepsum = 0; CORE::kill 0, $family_pids[0] and $sleepsum < 200;
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$sleepsum += $sleep) {
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$sleep = ::reap_usleep($sleep);
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}
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@ -7077,6 +7088,8 @@ sub start {
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if($opt::dryrun) {
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$command = "true";
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}
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# Each child gets its own process group to make it safe to killall
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my @setpgrp_wrap = ('perl','-e',"setpgrp\;exec '$Global::shell', '-c', \@ARGV");
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$ENV{'PARALLEL_SEQ'} = $job->seq();
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$ENV{'PARALLEL_PID'} = $$;
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$ENV{'PARALLEL_TMP'} = ::tmpname("par");
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@ -7086,7 +7099,7 @@ sub start {
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my ($stdin_fh);
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# The eval is needed to catch exception from open3
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eval {
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$pid = ::open3($stdin_fh, ">&OUT", ">&ERR", $Global::shell, "-c", $command) ||
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$pid = ::open3($stdin_fh, ">&OUT", ">&ERR", @setpgrp_wrap, $command) ||
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::die_bug("open3-pipe");
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1;
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};
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@ -7098,7 +7111,7 @@ sub start {
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*IN = *STDIN;
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# The eval is needed to catch exception from open3
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eval {
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$pid = ::open3("<&IN", ">&OUT", ">&ERR", $Global::shell, "-c", $command) ||
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$pid = ::open3("<&IN", ">&OUT", ">&ERR", @setpgrp_wrap, $command) ||
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::die_bug("open3-a");
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1;
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};
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@ -7111,7 +7124,7 @@ sub start {
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*IN = $devtty_fh;
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# The eval is needed to catch exception from open3
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eval {
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$pid = ::open3("<&IN", ">&OUT", ">&ERR", $Global::shell, "-c", $command) ||
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$pid = ::open3("<&IN", ">&OUT", ">&ERR", @setpgrp_wrap, $command) ||
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::die_bug("open3-/dev/tty");
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$Global::tty_taken = $pid;
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close $devtty_fh;
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@ -7120,7 +7133,7 @@ sub start {
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} else {
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# The eval is needed to catch exception from open3
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eval {
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$pid = ::open3(::gensym, ">&OUT", ">&ERR", $Global::shell, "-c", $command) ||
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$pid = ::open3(::gensym, ">&OUT", ">&ERR", @setpgrp_wrap, $command) ||
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::die_bug("open3-gensym");
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1;
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};
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@ -733,7 +733,7 @@ _
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/bin/bash: my_func2: command not found
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parallel -vv -S $SERVER1 echo ::: bar
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ssh parallel@lo exec perl\ -e\ \\\$ENV\\\{\\\"PARALLEL_PID\\\"\\\}\\\=\\\"000000\\\"\\\;\\\$ENV\\\{\\\"PARALLEL_SEQ\\\"\\\}\\\=\\\"1\\\"\\\;\\\$bashfunc\\\ \\\=\\\ \\\"\\\"\\\;@ARGV\\\=\\\"echo\\\ bar\\\"\\\;\\\$shell\\\=\\\"\\\$ENV\\\{SHELL\\\}\\\"\\\;\\\$tmpdir\\\=\\\"/tmp/parallel-tutorial\\\"\\\;do\\\{\\\$ENV\\\{PARALLEL_TMP\\\}\\\=\\\$tmpdir.\\\"/par\\\".join\\\"\\\",map\\\{\\\(0..9,\\\"a\\\"..\\\"z\\\",\\\"A\\\"..\\\"Z\\\"\\\)\\\[rand\\\(62\\\)\\\]\\\}\\\(1..5\\\)\\\;\\\}while\\\(-e\\\$ENV\\\{PARALLEL_TMP\\\}\\\)\\\;\\\$SIG\\\{CHLD\\\}\\\=sub\\\{\\\$done\\\=1\\\;\\\}\\\;\\\$pid\\\=fork\\\;unless\\\(\\\$pid\\\)\\\{setpgrp\\\;exec\\\$shell,\\\"-c\\\",\\\(\\\$bashfunc.\\\"@ARGV\\\"\\\)\\\;die\\\"exec:\\\$\\\!\\\\n\\\"\\\;\\\}do\\\{\\\$s\\\=\\\$s\\\<1\\\?0.001+\\\$s\\\*1.03:\\\$s\\\;select\\\(undef,undef,undef,\\\$s\\\)\\\;\\\}until\\\(\\\$done\\\|\\\|getppid\\\=\\\=1\\\)\\\;kill\\\(SIGHUP,-\\\$\\\{pid\\\}\\\)unless\\\$done\\\;wait\\\;exit\\\(\\\$\\\?\\\&127\\\?128+\\\(\\\$\\\?\\\&127\\\):1+\\\$\\\?\\\>\\\>8\\\);
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ssh parallel@lo exec perl -e \''@GNU_Parallel=("use","IPC::Open3;","use","MIME::Base64");eval"@GNU_Parallel";$SIG{CHLD}="IGNORE";my$zip=(grep{-x$_}"/usr/local/bin/bzip2")[0]||"bzip2";my($in,$out,$eval);open3($in,$out,">&STDERR",$zip,"-dc");if(my$perlpid=fork){close$in;$eval=join"",<$out>;close$out;}else{close$out;print$in(decode_base64(join"",@ARGV));close$in;exit;}wait;eval$eval;'\' BASE64;
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bar
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my_func3() {
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echo in my_func $1 > $1.out
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