mirror of
https://git.savannah.gnu.org/git/parallel.git
synced 2024-10-18 04:49:40 +00:00
Fixed: bug #32834: If input is generated slowly - do not complain.
-i with no args defaults to -i {}.
Use ::die_bug instead of die.
This commit is contained in:
Ole Tange
parent
b4a51e40ee
commit
c5d11674b0
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@ -1,3 +1,8 @@
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Fixed: bug #32834: If input is generated slowly - do not complain
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-i with no args defaults to -i {}
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Use ::die_bug instead of die.
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test if block size is too small to match a record sep in both -N mode and normal
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Example:
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@ -160,8 +160,8 @@ New in this release:
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By putting --tollef in the site wide config file you can deinstall
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Tollef's parallel and install GNU Parallel instead without any
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change for users or scripts. This is useful for packagers that
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currently do not distribute GNU Parallel because the command name
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conflicts with Tollef's parallel.
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currently rename GNU Parallel or simply do not distribute GNU
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Parallel because the command name conflicts with Tollef's parallel.
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* -L 0 -n 0, and -N 0 implemented. They will read one argument,
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but insert 0 arguments on the command line. Useful if you just want
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@ -176,6 +176,10 @@ New in this release:
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* Man page examples translated into Japanese. Thanks to Koshigoe.
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http://w.koshigoe.jp/study/?%5Bsystem%5D+GNU+parallel+%BB%C8%CD%D1%CE%E3#l13
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* GNU Parallel will be presented at:
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- LUGA, Augsburg, 2011-03-26, http://www.luga.de/Aktionen/LIT-2011/Programm
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- OSAA.dk, Aarhus, 2011-04-12
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* Video of presentation from FSCONS 2010-11-07. The presenter was
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_really_ hoarse that day (Something to do with loads of alcohol the
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night before). http://vimeo.com/20838834
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86
src/parallel
86
src/parallel
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@ -14,7 +14,7 @@ $::oodebug=0;
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$SIG{TERM} ||= sub { exit 0; }; # $SIG{TERM} is not set on Mac OS X
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%Global::original_sig = %SIG;
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$SIG{TERM} = sub {}; # Dummy until jobs really start
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open $Global::original_stderr, ">&STDERR" or die "Can't dup STDERR: $!";
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open $Global::original_stderr, ">&STDERR" or ::die_bug("Can't dup STDERR: $!");
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do_not_reap();
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parse_options();
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@ -264,7 +264,7 @@ sub acquire_semaphore {
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} else {
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# child
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# Get a semaphore for this pid
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die "Can't start a new session: $!" if setsid() == -1;
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::die_bug("Can't start a new session: $!") if setsid() == -1;
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$sem = Semaphore->new($Semaphore::name,$Global::host{':'}->max_jobs_running());
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$sem->acquire();
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}
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@ -423,7 +423,9 @@ sub parse_options {
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if(defined $::opt_verbose) { $Global::stderr_verbose = 1; }
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if(defined $::opt_I) { $Global::replace{'{}'} = $::opt_I; }
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if(defined $::opt_U) { $Global::replace{'{.}'} = $::opt_U; }
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if(defined $::opt_i) { $Global::replace{'{}'} = $::opt_i; }
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if(defined $::opt_i) {
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$Global::replace{'{}'} = $::opt_i eq "" ? "{}" : $::opt_i;
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}
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if(defined $::opt_basenamereplace) { $Global::replace{'{/}'} = $::opt_basenamereplace; }
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if(defined $::opt_basenameextensionreplace) {
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$Global::replace{'{/.}'} = $::opt_basenameextensionreplace;
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@ -600,7 +602,7 @@ sub read_options {
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}
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for my $profile (@profiles) {
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if(-r $profile) {
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open (IN, "<", $profile) || die;
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open (IN, "<", $profile) || ::die_bug("read-profile: $profile");
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while(<IN>) {
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/^\s*\#/ and next;
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chomp;
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@ -879,9 +881,12 @@ sub __RUNNING_AND_PRINTING_THE_JOBS__ {}
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sub init_run_jobs {
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# Remember the original STDOUT and STDERR
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# Returns: N/A
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open $Global::original_stdout, ">&STDOUT" or die "Can't dup STDOUT: $!";
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open $Global::original_stderr, ">&STDERR" or die "Can't dup STDERR: $!";
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open $Global::original_stdin, "<&STDIN" or die "Can't dup STDIN: $!";
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open $Global::original_stdout, ">&STDOUT" or
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::die_bug("Can't dup STDOUT: $!");
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open $Global::original_stderr, ">&STDERR" or
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::die_bug("Can't dup STDERR: $!");
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open $Global::original_stdin, "<&STDIN" or
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::die_bug("Can't dup STDIN: $!");
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$Global::total_running = 0;
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$Global::total_started = 0;
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$Global::tty_taken = 0;
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@ -1262,7 +1267,7 @@ sub read_sshloginfile {
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if($file eq "..") {
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$file = $ENV{'HOME'}."/.parallel/sshloginfile";
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}
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open(IN, $file) || die "Cannot open $file";
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open(IN, $file) || ::die_bug("Cannot open $file");
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while(<IN>) {
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chomp;
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/^\s*#/ and next;
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@ -1738,7 +1743,7 @@ sub loadavg {
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# Should we update the loadavg file?
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my $update_loadavg_file = 0;
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if(-r $self->{'loadavg_file'}) {
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open(UPTIME,"<".$self->{'loadavg_file'}) || die;
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open(UPTIME,"<".$self->{'loadavg_file'}) || ::die_bug("loadavg_file-r");
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my $uptime_out = <UPTIME>;
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close UPTIME;
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# load average: 0.76, 1.53, 1.45
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@ -1818,7 +1823,7 @@ sub compute_max_loadavg {
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}
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} elsif (-f $loadspec) {
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# TODO this needs to be done for $loadspec
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die;
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::die_bug("loadspec-unimplemented");
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$Global::max_procs_file = $loadspec;
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$Global::max_procs_file_last_mod = (stat($Global::max_procs_file))[9];
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if(open(IN, $Global::max_procs_file)) {
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@ -1895,10 +1900,13 @@ sub processes_available_by_system_limit {
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open($fh{"init-$i"},"</dev/null");
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}
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my $count_jobs_already_read = $Global::JobQueue->next_seq();
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my $wait_time_for_getting_args = 0;
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my $start_time = time;
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while(1) {
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$system_limit >= $wanted_processes and last;
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not $more_filehandles and last;
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$max_system_proc_reached and last;
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my $before_getting_arg = time;
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if($Global::semaphore) {
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} elsif(defined $::opt_retries and $count_jobs_already_read) {
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# For retries we may need to run all jobs on this sshlogin
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@ -1920,6 +1928,7 @@ sub processes_available_by_system_limit {
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push(@jobs, $job);
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}
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}
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$wait_time_for_getting_args += time - $before_getting_arg;
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$system_limit++;
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# Every simultaneous process uses 2 filehandles when grouping
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@ -1927,7 +1936,6 @@ sub processes_available_by_system_limit {
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&& open($fh{$system_limit*10+2},"</dev/null");
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# System process limit
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$system_limit % 10 or $time=time;
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my $child;
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if($child = fork()) {
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push (@children,$child);
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@ -1941,13 +1949,19 @@ sub processes_available_by_system_limit {
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} else {
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$max_system_proc_reached = 1;
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}
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::debug("Time to fork ten procs: ", time-$time, " (processes so far: ", $system_limit,")\n");
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if(time-$time > 2 and not $slow_spawining_warning_printed) {
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# It took more than 2 second to fork ten processes.
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my $forktime = time - $time - $wait_time_for_getting_args;
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::debug("Time to fork $system_limit procs: $wait_time_for_getting_args ",
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$forktime,
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" (processes so far: ", $system_limit,")\n");
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if($system_limit > 10 and
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$forktime > 1 and
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$forktime > $system_limit * 0.01
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and not $slow_spawining_warning_printed) {
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# It took more than 0.01 second to fork a processes on avg.
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# Give the user a warning. He can press Ctrl-C if this
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# sucks.
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print $Global::original_stderr
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("parallel: Warning: Starting 10 extra processes takes > 2 sec.\n",
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("parallel: Warning: Starting $system_limit processes took > $forktime sec.\n",
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"Consider adjusting -j. Press CTRL-C to stop.\n");
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$slow_spawining_warning_printed = 1;
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}
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@ -2022,7 +2036,8 @@ sub simultaneous_sshlogin {
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my $serverlogin = $self->serverlogin();
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my $cmd = "$sshcmd $serverlogin echo simultaneouslogin 2>&1 &"x$wanted_processes;
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::debug("Trying $wanted_processes logins at $serverlogin");
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open (SIMUL, "($cmd)|grep simultaneouslogin | wc -l|") or die;
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open (SIMUL, "($cmd)|grep simultaneouslogin | wc -l|") or
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::die_bug("simultaneouslogin");
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my $ssh_limit = <SIMUL>;
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close SIMUL;
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chomp $ssh_limit;
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@ -2281,10 +2296,6 @@ sub sshcommand_of_sshlogin {
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# login@host
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my $self = shift;
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my ($sshcmd, $serverlogin);
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if($::oodebug and not defined $self->{'string'}) {
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Carp::confess("No sshlogin");
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die;
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}
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if($self->{'string'} =~ /(.+) (\S+)$/) {
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# Own ssh command
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$sshcmd = $1; $serverlogin = $2;
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@ -2497,7 +2508,8 @@ sub set_stdin {
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my $self = shift;
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my $stdin = shift;
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# set non-blocking
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fcntl($stdin, ::F_SETFL, ::O_NONBLOCK) or die "Couldn't set flags for HANDLE: $!\n";
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fcntl($stdin, ::F_SETFL, ::O_NONBLOCK) or
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::die_bug("Couldn't set flags for HANDLE: $!");
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$self->{'stdin'} = $stdin;
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}
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@ -2659,10 +2671,6 @@ sub sshlogin_wrap {
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my $self = shift;
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if(not defined $self->{'sshlogin_wrap'}) {
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my $sshlogin = $self->sshlogin();
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if($::oodebug and not defined $sshlogin) {
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Carp::confess("No sshlogin");
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die;
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}
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my $sshcmd = $sshlogin->sshcommand();
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my $serverlogin = $sshlogin->serverlogin();
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my $next_command_line = $self->replaced();
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@ -2883,17 +2891,12 @@ sub start {
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# Returns:
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# job-object or undef if job not to run
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my $job = shift;
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if($::oodebug and $job->{'commandline'}->{'commandline'}) {
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Carp::confess($job);
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die "jkj2";
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}
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my $command = $job->sshlogin_wrap();
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if($Global::interactive or $Global::stderr_verbose) {
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if($Global::interactive) {
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print $Global::original_stderr "$command ?...";
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open(TTY,"/dev/tty") || die;
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open(TTY,"/dev/tty") || ::die_bug("interactive-tty");
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my $answer = <TTY>;
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close TTY;
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my $run_yes = ($answer =~ /^\s*y/i);
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@ -2917,8 +2920,8 @@ sub start {
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($errfh,$name) = ::tempfile(SUFFIX => ".par");
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unlink $name;
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open OUT, '>&', $outfh or die "Can't redirect STDOUT: $!";
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open ERR, '>&', $errfh or die "Can't dup STDOUT: $!";
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open OUT, '>&', $outfh or ::die_bug("Can't redirect STDOUT: $!");
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open ERR, '>&', $errfh or ::die_bug("Can't dup STDOUT: $!");
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$job->set_stdout($outfh);
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$job->set_stderr($errfh);
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} else {
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@ -2944,27 +2947,27 @@ sub start {
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if($::opt_pipe) {
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my ($in);
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$pid = ::open3($in, ">&OUT", ">&ERR", $command) ||
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die("open3 (with spreadstdin) failed. Report a bug to <bug-parallel\@gnu.org>\n");
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::die_bug("open3-pipe");
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$job->set_stdin($in);
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} elsif(@::opt_a and $job->seq() == 1) {
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# Give STDIN to the first job if using -a
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*IN = *STDIN;
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$pid = ::open3("<&IN", ">&OUT", ">&ERR", $command) ||
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die("open3 (with -a) failed. Report a bug to <bug-parallel\@gnu.org>\n");
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::die_bug("open3-a");
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# Re-open to avoid complaining
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open STDIN, "<&", $Global::original_stdin
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or die "Can't dup \$Global::original_stdin: $!";
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or ::die_bug("dup-\$Global::original_stdin: $!");
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} elsif ($::opt_tty and not $Global::tty_taken and -c "/dev/tty" and
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open(DEVTTY, "/dev/tty")) {
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# Give /dev/tty to the command if no one else is using it
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*IN = *DEVTTY;
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$pid = ::open3("<&IN", ">&OUT", ">&ERR", $command) ||
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die("open3 (with /dev/tty) failed. Report a bug to <bug-parallel\@gnu.org>\n");
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::die_bug("open3-/dev/tty");
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$Global::tty_taken = $pid;
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close DEVTTY;
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} else {
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$pid = ::open3(::gensym, ">&OUT", ">&ERR", $command) ||
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die("open3 (with gensym) failed. Report a bug to <bug-parallel\@gnu.org>\n");
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::die_bug("open3-gensym");
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}
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$job->set_pid($pid);
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$job->set_starttime();
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@ -3971,7 +3974,7 @@ sub new {
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-d $parallel_locks or mkdir $parallel_locks;
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my $lockdir = "$parallel_locks/$id";
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my $lockfile = $lockdir.".lock";
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if($count < 1) { die "Semaphore count = $count"; }
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if($count < 1) { ::die_bug("semaphore-count: $count"); }
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return bless {
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'lockfile' => $lockfile,
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'lockfh' => Symbol::gensym(),
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@ -4038,7 +4041,8 @@ sub atomic_link_if_count_less_than {
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if($self->nlinks() < $self->{'count'}) {
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-d $self->{'lockdir'} || mkdir $self->{'lockdir'};
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if(not -e $self->{'idfile'}) {
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open (A, ">", $self->{'idfile'}) or die ">$self->{'idfile'}";
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open (A, ">", $self->{'idfile'}) or
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::die_bug("write_idfile: $self->{'idfile'}");
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close A;
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}
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$retval = link $self->{'idfile'}, $self->{'pidfile'};
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@ -4061,7 +4065,7 @@ sub nlinks {
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sub lock {
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my $self = shift;
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open $self->{'lockfh'}, ">", $self->{'lockfile'}
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or die "Can't open semaphore file $self->{'lockfile'}: $!";
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or ::die_bug("Can't open semaphore file $self->{'lockfile'}: $!");
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chmod 0666, $self->{'lockfile'}; # assuming you want it a+rw
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while(not flock $self->{'lockfh'}, LOCK_EX()|LOCK_NB()) {
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::debug("Cannot lock $self->{'lockfile'}");
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|
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@ -18,22 +18,23 @@ B<#!/usr/bin/parallel> --shebang [options] [I<command> [arguments]]
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=head1 DESCRIPTION
|
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GNU B<parallel> is a shell tool for executing jobs concurrently locally
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or using remote computers. A job is typically a single command or a
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small script that has to be run for each of the lines in the
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input. The typical input is a list of files, a list of hosts, a list
|
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of users, a list of URLs, or a list of tables.
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GNU B<parallel> is a shell tool for executing jobs in parallel using one
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or more computers. A job is can be a single command or a small script
|
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that has to be run for each of the lines in the input. The typical
|
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input is a list of files, a list of hosts, a list of users, a list of
|
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URLs, or a list of tables. A job can also be a command that reads from
|
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a pipe. GNU B<parallel> can then split the input and pipe it into
|
||||
commands in parallel.
|
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|
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If you use B<xargs> today you will find GNU B<parallel> very easy to
|
||||
use as GNU B<parallel> is written to have the same options as
|
||||
B<xargs>. If you write loops in shell, you will find GNU B<parallel>
|
||||
may be able to replace most of the loops and make them run faster by
|
||||
running several jobs simultaneously.
|
||||
If you use xargs and tee today you will find GNU B<parallel> very easy to
|
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use as GNU B<parallel> is written to have the same options as xargs. If
|
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you write loops in shell, you will find GNU B<parallel> may be able to
|
||||
replace most of the loops and make them run faster by running several
|
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jobs in parallel.
|
||||
|
||||
GNU B<parallel> makes sure output from the commands is the same output
|
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as you would get had you run the commands sequentially. This makes it
|
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possible to use output from GNU B<parallel> as input for other
|
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programs.
|
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GNU B<parallel> makes sure output from the commands is the same output as
|
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you would get had you run the commands sequentially. This makes it
|
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possible to use output from GNU B<parallel> as input for other programs.
|
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|
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For each line of input GNU B<parallel> will execute I<command> with
|
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the line as arguments. If no I<command> is given, the line of input is
|
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|
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@ -436,7 +437,7 @@ B<perl -a -F"\t" -ne 'chomp($F[2]=`date -d \@$F[2] +%FT%T`); print join("\t",@F)
|
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=item B<-P> I<N>
|
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|
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Number of jobslots. Run up to N jobs in parallel. 0 means as many as
|
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possible. Default is +0 which will run one job per CPU core.
|
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possible. Default is 100% which will run one job per CPU core.
|
||||
|
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If B<--semaphore> is set default is 1 thus making a mutex.
|
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|
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|
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@ -2647,6 +2648,24 @@ you file a bug-report.
|
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Report bugs to <bug-parallel@gnu.org> or
|
||||
https://savannah.gnu.org/bugs/?func=additem&group=parallel
|
||||
|
||||
Your bugreport should always include:
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||||
|
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=over 2
|
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|
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=item *
|
||||
|
||||
The output of B<parallel --version>. If you are not running the latest
|
||||
released version you should specify why you believe the problem is not
|
||||
fixed in that version.
|
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|
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=item *
|
||||
|
||||
A complete example that others can run that shows the problem. A
|
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combination of B<seq>, B<echo>, and B<sleep> can reproduce most
|
||||
errors.
|
||||
|
||||
=back
|
||||
|
||||
|
||||
=head1 AUTHOR
|
||||
|
||||
|
|
|
|||
7
src/sql
7
src/sql
|
|
@ -30,7 +30,8 @@ GNU B<sql> is often used in combination with GNU B<parallel>.
|
|||
=item I<dburl>
|
||||
|
||||
A DBURL has the following syntax:
|
||||
[sql:]vendor://[[user][:password]@][host][:port]/[database][?sqlquery]
|
||||
[sql:]vendor://
|
||||
[[user][:password]@][host][:port]/[database][?sqlquery]
|
||||
|
||||
See the section DBURL below.
|
||||
|
||||
|
|
@ -164,7 +165,8 @@ For this to work B<--shebang> or B<-Y> must be set as the first option.
|
|||
=head1 DBURL
|
||||
|
||||
A DBURL has the following syntax:
|
||||
[sql:]vendor://[[user][:password]@][host][:port]/[database][?sqlquery]
|
||||
[sql:]vendor://
|
||||
[[user][:password]@][host][:port]/[database][?sqlquery]
|
||||
|
||||
To quote special characters use %-encoding specified in
|
||||
http://tools.ietf.org/html/rfc3986#section-2.1 (E.g. a password
|
||||
|
|
@ -175,6 +177,7 @@ Examples:
|
|||
sql:oracle://scott:tiger@ora.example.com/xe
|
||||
postgresql://scott:tiger@pg.example.com/pgdb
|
||||
pg:///
|
||||
postgresqlssl://scott@pg.example.com:3333/pgdb
|
||||
sql:sqlite2:////tmp/db.sqlite?SELECT * FROM foo;
|
||||
sqlite3:///../db.sqlite3?SELECT%20*%20FROM%20foo;
|
||||
|
||||
|
|
|
|||
|
|
@ -1,4 +1,14 @@
|
|||
#!/bin/bash
|
||||
|
||||
echo '### Test slow arguments generation - https://savannah.gnu.org/bugs/?32834'
|
||||
seq 1 3 | parallel -j1 "sleep 2; echo {}" | parallel -kj2 echo
|
||||
#seq 1000000000 1000000010 | pv -L 10 -q | stdout parallel -j 10 echo
|
||||
|
||||
echo '### Test too slow spawning'
|
||||
seq 1000000000 1000000010 | pv -L 10 -q | stdout parallel -j 10 echo
|
||||
killall -9 burnP6 2>/dev/null
|
||||
seq 1 2 | parallel -j2 -N0 timeout -k 25 26 burnP6 &
|
||||
sleep 1
|
||||
seq 1 1000 |
|
||||
stdout nice nice parallel -s 100 -uj0 true |
|
||||
perl -pe '/parallel: Warning: Starting \d+ processes took/ and do {close STDIN; `killall -9 burnP6`; print "OK\n"; exit }'
|
||||
killall -9 burnP6 2>/dev/null
|
||||
|
|
|
|||
|
|
@ -290,7 +290,7 @@ Output from -h and --help
|
|||
6
|
||||
6
|
||||
### Test --version: Version output (just check we get the same amount of lines)
|
||||
7
|
||||
12
|
||||
### Test --verbose and -t
|
||||
echo bar
|
||||
echo car
|
||||
|
|
|
|||
|
|
@ -22,7 +22,7 @@
|
|||
2
|
||||
### Test of --retries on unreachable host
|
||||
ssh: connect to host 4.3.2.1 port 22: Connection timed out
|
||||
parallel: Warning: Could not figure out number of cpus on 4.3.2.1. Using 1
|
||||
parallel: Warning: Could not figure out number of cpus on 4.3.2.1 (). Using 1
|
||||
echo 1
|
||||
1
|
||||
echo 2
|
||||
|
|
|
|||
|
|
@ -1,14 +1,6 @@
|
|||
### Test slow arguments generation - https://savannah.gnu.org/bugs/?32834
|
||||
1
|
||||
2
|
||||
3
|
||||
### Test too slow spawning
|
||||
parallel: Warning: Starting 10 extra processes takes > 2 sec.
|
||||
Consider adjusting -j. Press CTRL-C to stop.
|
||||
1000000000
|
||||
1000000001
|
||||
1000000002
|
||||
1000000003
|
||||
1000000004
|
||||
1000000005
|
||||
1000000006
|
||||
1000000007
|
||||
1000000008
|
||||
1000000009
|
||||
1000000010
|
||||
OK
|
||||
|
|
|
|||
Loading…
Reference in a new issue