2 # -*- mode: perl; perl-indent-level: 2; indent-tabs-mode: nil; -*-
6 crunch-job: Execute job steps, save snapshots as requested, collate output.
10 Obtain job details from Arvados, run tasks on compute nodes (typically
11 invoked by scheduler on controller):
13 crunch-job --job x-y-z
15 Obtain job details from command line, run tasks on local machine
16 (typically invoked by application or developer on VM):
18 crunch-job --job '{"script_version":"/path/to/tree","script":"scriptname",...}'
26 If the job is already locked, steal the lock and run it anyway.
30 Path to .git directory where the specified commit is found.
34 Arvados API authorization token to use during the course of the job.
38 Do not clear per-job/task temporary directories during initial job
39 setup. This can speed up development and debugging when running jobs
44 =head1 RUNNING JOBS LOCALLY
46 crunch-job's log messages appear on stderr along with the job tasks'
47 stderr streams. The log is saved in Keep at each checkpoint and when
50 If the job succeeds, the job's output locator is printed on stdout.
52 While the job is running, the following signals are accepted:
56 =item control-C, SIGINT, SIGQUIT
58 Save a checkpoint, terminate any job tasks that are running, and stop.
62 Save a checkpoint and continue.
66 Refresh node allocation (i.e., check whether any nodes have been added
67 or unallocated) and attributes of the Job record that should affect
68 behavior (e.g., cancel job if cancelled_at becomes non-nil).
76 use POSIX ':sys_wait_h';
77 use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
79 use Digest::MD5 qw(md5_hex);
86 $ENV{"TMPDIR"} ||= "/tmp";
87 unless (defined $ENV{"CRUNCH_TMP"}) {
88 $ENV{"CRUNCH_TMP"} = $ENV{"TMPDIR"} . "/crunch-job";
89 if ($ENV{"USER"} ne "crunch" && $< != 0) {
90 # use a tmp dir unique for my uid
91 $ENV{"CRUNCH_TMP"} .= "-$<";
94 $ENV{"JOB_WORK"} = $ENV{"CRUNCH_TMP"} . "/work";
95 $ENV{"CRUNCH_INSTALL"} = "$ENV{CRUNCH_TMP}/opt";
96 $ENV{"CRUNCH_WORK"} = $ENV{"JOB_WORK"}; # deprecated
97 mkdir ($ENV{"JOB_WORK"});
101 if (defined $ENV{"ARV_CLI"}) {
102 $arv_cli = $ENV{"ARV_CLI"};
114 GetOptions('force-unlock' => \$force_unlock,
115 'git-dir=s' => \$git_dir,
116 'job=s' => \$jobspec,
117 'job-api-token=s' => \$job_api_token,
118 'no-clear-tmp' => \$no_clear_tmp,
119 'resume-stash=s' => \$resume_stash,
122 if (defined $job_api_token) {
123 $ENV{ARVADOS_API_TOKEN} = $job_api_token;
126 my $have_slurm = exists $ENV{SLURM_JOBID} && exists $ENV{SLURM_NODELIST};
127 my $job_has_uuid = $jobspec =~ /^[-a-z\d]+$/;
128 my $local_job = !$job_has_uuid;
133 $main::ENV{CRUNCH_DEBUG} = 1;
137 $main::ENV{CRUNCH_DEBUG} = 0;
142 my $arv = Arvados->new('apiVersion' => 'v1');
145 my $User = $arv->{'users'}->{'current'}->execute;
153 $Job = $arv->{'jobs'}->{'get'}->execute('uuid' => $jobspec);
154 if (!$force_unlock) {
155 if ($Job->{'is_locked_by_uuid'}) {
156 croak("Job is locked: " . $Job->{'is_locked_by_uuid'});
158 if ($Job->{'success'} ne undef) {
159 croak("Job 'success' flag (" . $Job->{'success'} . ") is not null");
161 if ($Job->{'running'}) {
162 croak("Job 'running' flag is already set");
164 if ($Job->{'started_at'}) {
165 croak("Job 'started_at' time is already set (" . $Job->{'started_at'} . ")");
171 $Job = JSON::decode_json($jobspec);
175 map { croak ("No $_ specified") unless $Job->{$_} }
176 qw(script script_version script_parameters);
179 $Job->{'is_locked_by_uuid'} = $User->{'uuid'};
180 $Job->{'started_at'} = gmtime;
182 $Job = $arv->{'jobs'}->{'create'}->execute('job' => $Job);
186 $job_id = $Job->{'uuid'};
188 my $keep_logfile = $job_id . '.log.txt';
189 $local_logfile = File::Temp->new();
191 $Job->{'runtime_constraints'} ||= {};
192 $Job->{'runtime_constraints'}->{'max_tasks_per_node'} ||= 0;
193 my $max_ncpus = $Job->{'runtime_constraints'}->{'max_tasks_per_node'};
196 Log (undef, "check slurm allocation");
199 # Should use $ENV{SLURM_TASKS_PER_NODE} instead of sinfo? (eg. "4(x3),2,4(x2)")
203 my $localcpus = 0 + `grep -cw ^processor /proc/cpuinfo` || 1;
204 push @sinfo, "$localcpus localhost";
206 if (exists $ENV{SLURM_NODELIST})
208 push @sinfo, `sinfo -h --format='%c %N' --nodes=\Q$ENV{SLURM_NODELIST}\E`;
212 my ($ncpus, $slurm_nodelist) = split;
213 $ncpus = $max_ncpus if $max_ncpus && $ncpus > $max_ncpus;
216 while ($slurm_nodelist =~ s/^([^\[,]+?(\[.*?\])?)(,|$)//)
219 if ($nodelist =~ /\[((\d+)(-(\d+))?(,(\d+)(-(\d+))?)*)\]/)
222 foreach (split (",", $ranges))
235 push @nodelist, map {
237 $n =~ s/\[[-,\d]+\]/$_/;
244 push @nodelist, $nodelist;
247 foreach my $nodename (@nodelist)
249 Log (undef, "node $nodename - $ncpus slots");
250 my $node = { name => $nodename,
254 foreach my $cpu (1..$ncpus)
256 push @slot, { node => $node,
260 push @node, @nodelist;
265 # Ensure that we get one jobstep running on each allocated node before
266 # we start overloading nodes with concurrent steps
268 @slot = sort { $a->{cpu} <=> $b->{cpu} } @slot;
275 # Claim this job, and make sure nobody else does
276 unless ($Job->update_attributes('is_locked_by_uuid' => $User->{'uuid'}) &&
277 $Job->{'is_locked_by_uuid'} == $User->{'uuid'}) {
278 croak("Error while updating / locking job");
280 $Job->update_attributes('started_at' => scalar gmtime,
283 'tasks_summary' => { 'failed' => 0,
290 Log (undef, "start");
291 $SIG{'INT'} = sub { $main::please_freeze = 1; };
292 $SIG{'QUIT'} = sub { $main::please_freeze = 1; };
293 $SIG{'TERM'} = \&croak;
294 $SIG{'TSTP'} = sub { $main::please_freeze = 1; };
295 $SIG{'ALRM'} = sub { $main::please_info = 1; };
296 $SIG{'CONT'} = sub { $main::please_continue = 1; };
297 $SIG{'HUP'} = sub { $main::please_refresh = 1; };
299 $main::please_freeze = 0;
300 $main::please_info = 0;
301 $main::please_continue = 0;
302 $main::please_refresh = 0;
303 my $jobsteps_must_output_keys = 0; # becomes 1 when any task outputs a key
305 grep { $ENV{$1} = $2 if /^(NOCACHE.*?)=(.*)/ } split ("\n", $$Job{knobs});
306 $ENV{"CRUNCH_JOB_UUID"} = $job_id;
307 $ENV{"JOB_UUID"} = $job_id;
311 my @jobstep_todo = ();
312 my @jobstep_done = ();
313 my @jobstep_tomerge = ();
314 my $jobstep_tomerge_level = 0;
316 my $squeue_kill_checked;
317 my $output_in_keep = 0;
318 my $latest_refresh = scalar time;
322 if (defined $Job->{thawedfromkey})
324 thaw ($Job->{thawedfromkey});
328 my $first_task = $arv->{'job_tasks'}->{'create'}->execute('job_task' => {
329 'job_uuid' => $Job->{'uuid'},
334 push @jobstep, { 'level' => 0,
336 'arvados_task' => $first_task,
338 push @jobstep_todo, 0;
344 must_lock_now("$ENV{CRUNCH_TMP}/.lock", "a job is already running here.");
351 $ENV{"CRUNCH_SRC_COMMIT"} = $Job->{script_version};
353 my $skip_install = ($local_job && $Job->{script_version} =~ m{^/});
356 if (!defined $no_clear_tmp) {
357 my $clear_tmp_cmd = 'rm -rf $JOB_WORK $CRUNCH_TMP/opt $CRUNCH_TMP/src*';
358 system($clear_tmp_cmd) == 0
359 or croak ("`$clear_tmp_cmd` failed: ".($?>>8));
361 $ENV{"CRUNCH_SRC"} = $Job->{script_version};
362 for my $src_path ("$ENV{CRUNCH_SRC}/arvados/sdk/python") {
364 system("virtualenv", "$ENV{CRUNCH_TMP}/opt") == 0
365 or croak ("virtualenv $ENV{CRUNCH_TMP}/opt failed: exit ".($?>>8));
366 system ("cd $src_path && ./build.sh && \$CRUNCH_TMP/opt/bin/python setup.py install")
368 or croak ("setup.py in $src_path failed: exit ".($?>>8));
376 $build_script = <DATA>;
378 Log (undef, "Install revision ".$Job->{script_version});
379 my $nodelist = join(",", @node);
381 if (!defined $no_clear_tmp) {
382 # Clean out crunch_tmp/work, crunch_tmp/opt, crunch_tmp/src*
384 my $cleanpid = fork();
387 srun (["srun", "--nodelist=$nodelist", "-D", $ENV{'TMPDIR'}],
388 ['bash', '-c', 'if mount | grep -q $JOB_WORK/; then sudo /bin/umount $JOB_WORK/* 2>/dev/null; fi; sleep 1; rm -rf $JOB_WORK $CRUNCH_TMP/opt $CRUNCH_TMP/src*']);
393 last if $cleanpid == waitpid (-1, WNOHANG);
394 freeze_if_want_freeze ($cleanpid);
395 select (undef, undef, undef, 0.1);
397 Log (undef, "Clean-work-dir exited $?");
400 # Install requested code version
403 my @srunargs = ("srun",
404 "--nodelist=$nodelist",
405 "-D", $ENV{'TMPDIR'}, "--job-name=$job_id");
407 $ENV{"CRUNCH_SRC_COMMIT"} = $Job->{script_version};
408 $ENV{"CRUNCH_SRC"} = "$ENV{CRUNCH_TMP}/src";
412 my $treeish = $Job->{'script_version'};
414 # If we're running under crunch-dispatch, it will have pulled the
415 # appropriate source tree into its own repository, and given us that
416 # repo's path as $git_dir. If we're running a "local" job, and a
417 # script_version was specified, it's up to the user to provide the
418 # full path to a local repository in Job->{repository}.
420 # TODO: Accept URLs too, not just local paths. Use git-ls-remote and
421 # git-archive --remote where appropriate.
423 # TODO: Accept a locally-hosted Arvados repository by name or
424 # UUID. Use arvados.v1.repositories.list or .get to figure out the
425 # appropriate fetch-url.
426 my $repo = $git_dir || $ENV{'CRUNCH_DEFAULT_GIT_DIR'} || $Job->{'repository'};
428 $ENV{"CRUNCH_SRC_URL"} = $repo;
430 if (-d "$repo/.git") {
431 # We were given a working directory, but we are only interested in
433 $repo = "$repo/.git";
436 # If this looks like a subversion r#, look for it in git-svn commit messages
438 if ($treeish =~ m{^\d{1,4}$}) {
439 my $gitlog = `git --git-dir=\Q$repo\E log --pretty="format:%H" --grep="git-svn-id:.*\@"\Q$treeish\E" " master`;
441 if ($gitlog =~ /^[a-f0-9]{40}$/) {
443 Log (undef, "Using commit $commit for script_version $treeish");
447 # If that didn't work, try asking git to look it up as a tree-ish.
449 if (!defined $commit) {
450 my $found = `git --git-dir=\Q$repo\E rev-list -1 ''\Q$treeish\E`;
452 if ($found =~ /^[0-9a-f]{40}$/s) {
454 if ($commit ne $treeish) {
455 # Make sure we record the real commit id in the database,
456 # frozentokey, logs, etc. -- instead of an abbreviation or a
457 # branch name which can become ambiguous or point to a
458 # different commit in the future.
459 $ENV{"CRUNCH_SRC_COMMIT"} = $commit;
460 Log (undef, "Using commit $commit for tree-ish $treeish");
461 if ($commit ne $treeish) {
462 $Job->{'script_version'} = $commit;
464 $Job->update_attributes('script_version' => $commit) or
465 croak("Error while updating job");
471 if (defined $commit) {
472 $ENV{"CRUNCH_SRC_COMMIT"} = $commit;
473 @execargs = ("sh", "-c",
474 "mkdir -p $ENV{CRUNCH_INSTALL} && cd $ENV{CRUNCH_TMP} && perl -");
475 $git_archive = `git --git-dir=\Q$repo\E archive ''\Q$commit\E`;
478 croak ("could not figure out commit id for $treeish");
481 my $installpid = fork();
482 if ($installpid == 0)
484 srun (\@srunargs, \@execargs, {}, $build_script . $git_archive);
489 last if $installpid == waitpid (-1, WNOHANG);
490 freeze_if_want_freeze ($installpid);
491 select (undef, undef, undef, 0.1);
493 Log (undef, "Install exited $?");
498 # Grab our lock again (we might have deleted and re-created CRUNCH_TMP above)
499 must_lock_now("$ENV{CRUNCH_TMP}/.lock", "a job is already running here.");
502 # If this job requires a Docker image, install that.
503 my $docker_bin = "/usr/bin/docker.io";
504 my $docker_image = $Job->{runtime_constraints}->{docker_image} || "";
506 my $docker_pid = fork();
507 if ($docker_pid == 0)
509 srun (["srun", "--nodelist=" . join(' ', @node)],
510 [$docker_bin, 'pull', $docker_image]);
515 last if $docker_pid == waitpid (-1, WNOHANG);
516 freeze_if_want_freeze ($docker_pid);
517 select (undef, undef, undef, 0.1);
519 # If the Docker image was specified as a hash, pull will fail.
520 # Ignore that error. We'll see what happens when we try to run later.
521 if (($? != 0) && ($docker_image !~ /^[0-9a-fA-F]{5,64}$/))
523 croak("Installing Docker image $docker_image returned exit code $?");
527 foreach (qw (script script_version script_parameters runtime_constraints))
531 (ref($Job->{$_}) ? JSON::encode_json($Job->{$_}) : $Job->{$_}));
533 foreach (split (/\n/, $Job->{knobs}))
535 Log (undef, "knob " . $_);
540 $main::success = undef;
546 my $thisround_succeeded = 0;
547 my $thisround_failed = 0;
548 my $thisround_failed_multiple = 0;
550 @jobstep_todo = sort { $jobstep[$a]->{level} <=> $jobstep[$b]->{level}
551 or $a <=> $b } @jobstep_todo;
552 my $level = $jobstep[$jobstep_todo[0]]->{level};
553 Log (undef, "start level $level");
558 my @freeslot = (0..$#slot);
561 my $progress_is_dirty = 1;
562 my $progress_stats_updated = 0;
564 update_progress_stats();
569 for (my $todo_ptr = 0; $todo_ptr <= $#jobstep_todo; $todo_ptr ++)
571 my $id = $jobstep_todo[$todo_ptr];
572 my $Jobstep = $jobstep[$id];
573 if ($Jobstep->{level} != $level)
578 pipe $reader{$id}, "writer" or croak ($!);
579 my $flags = fcntl ($reader{$id}, F_GETFL, 0) or croak ($!);
580 fcntl ($reader{$id}, F_SETFL, $flags | O_NONBLOCK) or croak ($!);
582 my $childslot = $freeslot[0];
583 my $childnode = $slot[$childslot]->{node};
584 my $childslotname = join (".",
585 $slot[$childslot]->{node}->{name},
586 $slot[$childslot]->{cpu});
587 my $childpid = fork();
590 $SIG{'INT'} = 'DEFAULT';
591 $SIG{'QUIT'} = 'DEFAULT';
592 $SIG{'TERM'} = 'DEFAULT';
594 foreach (values (%reader))
598 fcntl ("writer", F_SETFL, 0) or croak ($!); # no close-on-exec
599 open(STDOUT,">&writer");
600 open(STDERR,">&writer");
605 delete $ENV{"GNUPGHOME"};
606 $ENV{"TASK_UUID"} = $Jobstep->{'arvados_task'}->{'uuid'};
607 $ENV{"TASK_QSEQUENCE"} = $id;
608 $ENV{"TASK_SEQUENCE"} = $level;
609 $ENV{"JOB_SCRIPT"} = $Job->{script};
610 while (my ($param, $value) = each %{$Job->{script_parameters}}) {
611 $param =~ tr/a-z/A-Z/;
612 $ENV{"JOB_PARAMETER_$param"} = $value;
614 $ENV{"TASK_SLOT_NODE"} = $slot[$childslot]->{node}->{name};
615 $ENV{"TASK_SLOT_NUMBER"} = $slot[$childslot]->{cpu};
616 $ENV{"TASK_WORK"} = $ENV{"JOB_WORK"}."/$id.$$";
617 $ENV{"TASK_KEEPMOUNT"} = $ENV{"TASK_WORK"}.".keep";
618 $ENV{"TASK_TMPDIR"} = $ENV{"TASK_WORK"}; # deprecated
619 $ENV{"CRUNCH_NODE_SLOTS"} = $slot[$childslot]->{node}->{ncpus};
620 $ENV{"PATH"} = $ENV{"CRUNCH_INSTALL"} . "/bin:" . $ENV{"PATH"};
626 "--nodelist=".$childnode->{name},
627 qw(-n1 -c1 -N1 -D), $ENV{'TMPDIR'},
628 "--job-name=$job_id.$id.$$",
630 my $build_script_to_send = "";
632 "if [ -e $ENV{TASK_WORK} ]; then rm -rf $ENV{TASK_WORK}; fi; "
633 ."mkdir -p $ENV{JOB_WORK} $ENV{CRUNCH_TMP} $ENV{TASK_WORK} $ENV{TASK_KEEPMOUNT} "
634 ."&& cd $ENV{CRUNCH_TMP} ";
637 $build_script_to_send = $build_script;
641 $command .= "&& exec arv-mount --allow-other $ENV{TASK_KEEPMOUNT} --exec ";
644 $command .= "$docker_bin run -i -a stdin -a stdout -a stderr ";
645 # Dynamically configure the container to use the host system as its
646 # DNS server. Get the host's global addresses from the ip command,
647 # and turn them into docker --dns options using gawk.
649 q{$(ip -o address show scope global |
650 gawk 'match($4, /^([0-9\.:]+)\//, x){print "--dns", x[1]}') };
651 foreach my $env_key (qw(CRUNCH_SRC CRUNCH_TMP TASK_KEEPMOUNT))
653 $command .= "-v \Q$ENV{$env_key}:$ENV{$env_key}:rw\E ";
655 while (my ($env_key, $env_val) = each %ENV)
657 $command .= "-e \Q$env_key=$env_val\E ";
659 $command .= "\Q$docker_image\E ";
661 $command .= "$ENV{CRUNCH_SRC}/crunch_scripts/" . $Job->{"script"};
662 my @execargs = ('bash', '-c', $command);
663 srun (\@srunargs, \@execargs, undef, $build_script_to_send);
667 if (!defined $childpid)
674 $proc{$childpid} = { jobstep => $id,
677 jobstepname => "$job_id.$id.$childpid",
679 croak ("assert failed: \$slot[$childslot]->{'pid'} exists") if exists $slot[$childslot]->{pid};
680 $slot[$childslot]->{pid} = $childpid;
682 Log ($id, "job_task ".$Jobstep->{'arvados_task'}->{'uuid'});
683 Log ($id, "child $childpid started on $childslotname");
684 $Jobstep->{starttime} = time;
685 $Jobstep->{node} = $childnode->{name};
686 $Jobstep->{slotindex} = $childslot;
687 delete $Jobstep->{stderr};
688 delete $Jobstep->{finishtime};
690 splice @jobstep_todo, $todo_ptr, 1;
693 $progress_is_dirty = 1;
697 (@slot > @freeslot && $todo_ptr+1 > $#jobstep_todo))
699 last THISROUND if $main::please_freeze;
700 if ($main::please_info)
702 $main::please_info = 0;
706 update_progress_stats();
713 check_refresh_wanted();
715 update_progress_stats();
716 select (undef, undef, undef, 0.1);
718 elsif (time - $progress_stats_updated >= 30)
720 update_progress_stats();
722 if (($thisround_failed_multiple >= 8 && $thisround_succeeded == 0) ||
723 ($thisround_failed_multiple >= 16 && $thisround_failed_multiple > $thisround_succeeded))
725 my $message = "Repeated failure rate too high ($thisround_failed_multiple/"
726 .($thisround_failed+$thisround_succeeded)
727 .") -- giving up on this round";
728 Log (undef, $message);
732 # move slots from freeslot to holdslot (or back to freeslot) if necessary
733 for (my $i=$#freeslot; $i>=0; $i--) {
734 if ($slot[$freeslot[$i]]->{node}->{hold_until} > scalar time) {
735 push @holdslot, (splice @freeslot, $i, 1);
738 for (my $i=$#holdslot; $i>=0; $i--) {
739 if ($slot[$holdslot[$i]]->{node}->{hold_until} <= scalar time) {
740 push @freeslot, (splice @holdslot, $i, 1);
744 # give up if no nodes are succeeding
745 if (!grep { $_->{node}->{losing_streak} == 0 &&
746 $_->{node}->{hold_count} < 4 } @slot) {
747 my $message = "Every node has failed -- giving up on this round";
748 Log (undef, $message);
755 push @freeslot, splice @holdslot;
756 map { $slot[$freeslot[$_]]->{node}->{losing_streak} = 0 } (0..$#freeslot);
759 Log (undef, "wait for last ".(scalar keys %proc)." children to finish");
762 if ($main::please_continue) {
763 $main::please_continue = 0;
766 $main::please_info = 0, freeze(), collate_output(), save_meta(1) if $main::please_info;
770 check_refresh_wanted();
772 update_progress_stats();
773 select (undef, undef, undef, 0.1);
774 killem (keys %proc) if $main::please_freeze;
778 update_progress_stats();
779 freeze_if_want_freeze();
782 if (!defined $main::success)
785 $thisround_succeeded == 0 &&
786 ($thisround_failed == 0 || $thisround_failed > 4))
788 my $message = "stop because $thisround_failed tasks failed and none succeeded";
789 Log (undef, $message);
798 goto ONELEVEL if !defined $main::success;
801 release_allocation();
803 my $collated_output = &collate_output();
806 $Job->update_attributes('running' => 0,
807 'success' => $collated_output && $main::success,
808 'finished_at' => scalar gmtime)
811 if ($collated_output)
814 open(my $orig_manifest, '-|', 'arv', 'keep', 'get', $collated_output)
815 or die "failed to get collated manifest: $!";
816 # Read the original manifest, and strip permission hints from it,
817 # so we can put the result in a Collection.
818 my @manifest_lines = ();
819 while (my $manifest_line = <$orig_manifest>) {
820 my @words = split(/ /, $manifest_line, -1);
821 foreach my $ii (0..$#words) {
822 if ($words[$ii] =~ /^[0-9a-f]{32}\+/) {
823 $words[$ii] =~ s/\+A[0-9a-f]{40}@[0-9a-f]{8}\b//;
826 push(@manifest_lines, join(" ", @words));
828 my $manifest_text = join("", @manifest_lines);
829 my $output = $arv->{'collections'}->{'create'}->execute('collection' => {
830 'uuid' => md5_hex($manifest_text),
831 'manifest_text' => $manifest_text,
833 $Job->update_attributes('output' => $output->{uuid});
834 if ($Job->{'output_is_persistent'}) {
835 $arv->{'links'}->{'create'}->execute('link' => {
836 'tail_kind' => 'arvados#user',
837 'tail_uuid' => $User->{'uuid'},
838 'head_kind' => 'arvados#collection',
839 'head_uuid' => $Job->{'output'},
840 'link_class' => 'resources',
846 Log (undef, "Failed to register output manifest: $@");
850 Log (undef, "finish");
857 sub update_progress_stats
859 $progress_stats_updated = time;
860 return if !$progress_is_dirty;
861 my ($todo, $done, $running) = (scalar @jobstep_todo,
862 scalar @jobstep_done,
863 scalar @slot - scalar @freeslot - scalar @holdslot);
864 $Job->{'tasks_summary'} ||= {};
865 $Job->{'tasks_summary'}->{'todo'} = $todo;
866 $Job->{'tasks_summary'}->{'done'} = $done;
867 $Job->{'tasks_summary'}->{'running'} = $running;
869 $Job->update_attributes('tasks_summary' => $Job->{'tasks_summary'});
871 Log (undef, "status: $done done, $running running, $todo todo");
872 $progress_is_dirty = 0;
879 my $pid = waitpid (-1, WNOHANG);
880 return 0 if $pid <= 0;
882 my $whatslot = ($slot[$proc{$pid}->{slot}]->{node}->{name}
884 . $slot[$proc{$pid}->{slot}]->{cpu});
885 my $jobstepid = $proc{$pid}->{jobstep};
886 my $elapsed = time - $proc{$pid}->{time};
887 my $Jobstep = $jobstep[$jobstepid];
889 my $childstatus = $?;
890 my $exitvalue = $childstatus >> 8;
891 my $exitinfo = sprintf("exit %d signal %d%s",
894 ($childstatus & 128 ? ' core dump' : ''));
895 $Jobstep->{'arvados_task'}->reload;
896 my $task_success = $Jobstep->{'arvados_task'}->{success};
898 Log ($jobstepid, "child $pid on $whatslot $exitinfo success=$task_success");
900 if (!defined $task_success) {
901 # task did not indicate one way or the other --> fail
902 $Jobstep->{'arvados_task'}->{success} = 0;
903 $Jobstep->{'arvados_task'}->save;
910 $temporary_fail ||= $Jobstep->{node_fail};
911 $temporary_fail ||= ($exitvalue == 111);
914 ++$thisround_failed_multiple if $Jobstep->{'failures'} >= 1;
916 # Check for signs of a failed or misconfigured node
917 if (++$slot[$proc{$pid}->{slot}]->{node}->{losing_streak} >=
918 2+$slot[$proc{$pid}->{slot}]->{node}->{ncpus}) {
919 # Don't count this against jobstep failure thresholds if this
920 # node is already suspected faulty and srun exited quickly
921 if ($slot[$proc{$pid}->{slot}]->{node}->{hold_until} &&
923 Log ($jobstepid, "blaming failure on suspect node " .
924 $slot[$proc{$pid}->{slot}]->{node}->{name});
925 $temporary_fail ||= 1;
927 ban_node_by_slot($proc{$pid}->{slot});
930 Log ($jobstepid, sprintf('failure (#%d, %s) after %d seconds',
931 ++$Jobstep->{'failures'},
932 $temporary_fail ? 'temporary ' : 'permanent',
935 if (!$temporary_fail || $Jobstep->{'failures'} >= 3) {
936 # Give up on this task, and the whole job
938 $main::please_freeze = 1;
941 # Put this task back on the todo queue
942 push @jobstep_todo, $jobstepid;
944 $Job->{'tasks_summary'}->{'failed'}++;
948 ++$thisround_succeeded;
949 $slot[$proc{$pid}->{slot}]->{node}->{losing_streak} = 0;
950 $slot[$proc{$pid}->{slot}]->{node}->{hold_until} = 0;
951 push @jobstep_done, $jobstepid;
952 Log ($jobstepid, "success in $elapsed seconds");
954 $Jobstep->{exitcode} = $childstatus;
955 $Jobstep->{finishtime} = time;
956 process_stderr ($jobstepid, $task_success);
957 Log ($jobstepid, "output " . $Jobstep->{'arvados_task'}->{output});
959 close $reader{$jobstepid};
960 delete $reader{$jobstepid};
961 delete $slot[$proc{$pid}->{slot}]->{pid};
962 push @freeslot, $proc{$pid}->{slot};
966 my $newtask_list = [];
969 $newtask_results = $arv->{'job_tasks'}->{'list'}->execute(
971 'created_by_job_task_uuid' => $Jobstep->{'arvados_task'}->{uuid}
973 'order' => 'qsequence',
974 'offset' => scalar(@$newtask_list),
976 push(@$newtask_list, @{$newtask_results->{items}});
977 } while (@{$newtask_results->{items}});
978 foreach my $arvados_task (@$newtask_list) {
980 'level' => $arvados_task->{'sequence'},
982 'arvados_task' => $arvados_task
984 push @jobstep, $jobstep;
985 push @jobstep_todo, $#jobstep;
988 $progress_is_dirty = 1;
992 sub check_refresh_wanted
994 my @stat = stat $ENV{"CRUNCH_REFRESH_TRIGGER"};
995 if (@stat && $stat[9] > $latest_refresh) {
996 $latest_refresh = scalar time;
998 my $Job2 = $arv->{'jobs'}->{'get'}->execute('uuid' => $jobspec);
999 for my $attr ('cancelled_at',
1000 'cancelled_by_user_uuid',
1001 'cancelled_by_client_uuid') {
1002 $Job->{$attr} = $Job2->{$attr};
1004 if ($Job->{'cancelled_at'}) {
1005 Log (undef, "Job cancelled at " . $Job->{cancelled_at} .
1006 " by user " . $Job->{cancelled_by_user_uuid});
1008 $main::please_freeze = 1;
1016 # return if the kill list was checked <4 seconds ago
1017 if (defined $squeue_kill_checked && $squeue_kill_checked > time - 4)
1021 $squeue_kill_checked = time;
1023 # use killem() on procs whose killtime is reached
1026 if (exists $proc{$_}->{killtime}
1027 && $proc{$_}->{killtime} <= time)
1033 # return if the squeue was checked <60 seconds ago
1034 if (defined $squeue_checked && $squeue_checked > time - 60)
1038 $squeue_checked = time;
1042 # here is an opportunity to check for mysterious problems with local procs
1046 # get a list of steps still running
1047 my @squeue = `squeue -s -h -o '%i %j' && echo ok`;
1049 if ($squeue[-1] ne "ok")
1055 # which of my jobsteps are running, according to squeue?
1059 if (/^(\d+)\.(\d+) (\S+)/)
1061 if ($1 eq $ENV{SLURM_JOBID})
1068 # which of my active child procs (>60s old) were not mentioned by squeue?
1069 foreach (keys %proc)
1071 if ($proc{$_}->{time} < time - 60
1072 && !exists $ok{$proc{$_}->{jobstepname}}
1073 && !exists $proc{$_}->{killtime})
1075 # kill this proc if it hasn't exited in 30 seconds
1076 $proc{$_}->{killtime} = time + 30;
1082 sub release_allocation
1086 Log (undef, "release job allocation");
1087 system "scancel $ENV{SLURM_JOBID}";
1095 foreach my $job (keys %reader)
1098 while (0 < sysread ($reader{$job}, $buf, 8192))
1100 print STDERR $buf if $ENV{CRUNCH_DEBUG};
1101 $jobstep[$job]->{stderr} .= $buf;
1102 preprocess_stderr ($job);
1103 if (length ($jobstep[$job]->{stderr}) > 16384)
1105 substr ($jobstep[$job]->{stderr}, 0, 8192) = "";
1114 sub preprocess_stderr
1118 while ($jobstep[$job]->{stderr} =~ /^(.*?)\n/) {
1120 substr $jobstep[$job]->{stderr}, 0, 1+length($line), "";
1121 Log ($job, "stderr $line");
1122 if ($line =~ /srun: error: (SLURM job $ENV{SLURM_JOB_ID} has expired|Unable to confirm allocation for job $ENV{SLURM_JOB_ID})/) {
1124 $main::please_freeze = 1;
1126 elsif ($line =~ /srun: error: (Node failure on|Unable to create job step) /) {
1127 $jobstep[$job]->{node_fail} = 1;
1128 ban_node_by_slot($jobstep[$job]->{slotindex});
1137 my $task_success = shift;
1138 preprocess_stderr ($job);
1141 Log ($job, "stderr $_");
1142 } split ("\n", $jobstep[$job]->{stderr});
1148 my ($keep, $child_out, $output_block);
1150 my $cmd = "$arv_cli keep get \Q$hash\E";
1151 open($keep, '-|', $cmd) or die "fetch_block: $cmd: $!";
1152 sysread($keep, $output_block, 64 * 1024 * 1024);
1154 return $output_block;
1159 Log (undef, "collate");
1161 my ($child_out, $child_in);
1162 my $pid = open2($child_out, $child_in, $arv_cli, 'keep', 'put', '--raw');
1166 next if (!exists $_->{'arvados_task'}->{output} ||
1167 !$_->{'arvados_task'}->{'success'} ||
1168 $_->{'exitcode'} != 0);
1169 my $output = $_->{'arvados_task'}->{output};
1170 if ($output !~ /^[0-9a-f]{32}(\+\S+)*$/)
1172 $output_in_keep ||= $output =~ / [0-9a-f]{32}\S*\+K/;
1173 print $child_in $output;
1175 elsif (@jobstep == 1)
1177 $joboutput = $output;
1180 elsif (defined (my $outblock = fetch_block ($output)))
1182 $output_in_keep ||= $outblock =~ / [0-9a-f]{32}\S*\+K/;
1183 print $child_in $outblock;
1187 Log (undef, "XXX fetch_block($output) failed XXX");
1193 if (!defined $joboutput) {
1194 my $s = IO::Select->new($child_out);
1195 if ($s->can_read(120)) {
1196 sysread($child_out, $joboutput, 64 * 1024 * 1024);
1199 Log (undef, "timed out reading from 'arv keep put'");
1206 Log (undef, "output $joboutput");
1207 $Job->update_attributes('output' => $joboutput) if $job_has_uuid;
1211 Log (undef, "output undef");
1221 my $sig = 2; # SIGINT first
1222 if (exists $proc{$_}->{"sent_$sig"} &&
1223 time - $proc{$_}->{"sent_$sig"} > 4)
1225 $sig = 15; # SIGTERM if SIGINT doesn't work
1227 if (exists $proc{$_}->{"sent_$sig"} &&
1228 time - $proc{$_}->{"sent_$sig"} > 4)
1230 $sig = 9; # SIGKILL if SIGTERM doesn't work
1232 if (!exists $proc{$_}->{"sent_$sig"})
1234 Log ($proc{$_}->{jobstep}, "sending 2x signal $sig to pid $_");
1236 select (undef, undef, undef, 0.1);
1239 kill $sig, $_; # srun wants two SIGINT to really interrupt
1241 $proc{$_}->{"sent_$sig"} = time;
1242 $proc{$_}->{"killedafter"} = time - $proc{$_}->{"time"};
1252 vec($bits,fileno($_),1) = 1;
1258 sub Log # ($jobstep_id, $logmessage)
1260 if ($_[1] =~ /\n/) {
1261 for my $line (split (/\n/, $_[1])) {
1266 my $fh = select STDERR; $|=1; select $fh;
1267 my $message = sprintf ("%s %d %s %s", $job_id, $$, @_);
1268 $message =~ s{([^ -\176])}{"\\" . sprintf ("%03o", ord($1))}ge;
1271 if ($local_logfile || -t STDERR) {
1272 my @gmtime = gmtime;
1273 $datetime = sprintf ("%04d-%02d-%02d_%02d:%02d:%02d",
1274 $gmtime[5]+1900, $gmtime[4]+1, @gmtime[3,2,1,0]);
1276 print STDERR ((-t STDERR) ? ($datetime." ".$message) : $message);
1278 if ($local_logfile) {
1279 print $local_logfile $datetime . " " . $message;
1286 my ($package, $file, $line) = caller;
1287 my $message = "@_ at $file line $line\n";
1288 Log (undef, $message);
1289 freeze() if @jobstep_todo;
1290 collate_output() if @jobstep_todo;
1292 save_meta() if $local_logfile;
1299 return if !$job_has_uuid;
1300 $Job->update_attributes('running' => 0,
1302 'finished_at' => scalar gmtime);
1308 my $justcheckpoint = shift; # false if this will be the last meta saved
1309 return if $justcheckpoint; # checkpointing is not relevant post-Warehouse.pm
1311 $local_logfile->flush;
1312 my $cmd = "$arv_cli keep put --filename ''\Q$keep_logfile\E "
1313 . quotemeta($local_logfile->filename);
1314 my $loglocator = `$cmd`;
1315 die "system $cmd failed: $?" if $?;
1318 $local_logfile = undef; # the temp file is automatically deleted
1319 Log (undef, "log manifest is $loglocator");
1320 $Job->{'log'} = $loglocator;
1321 $Job->update_attributes('log', $loglocator) if $job_has_uuid;
1325 sub freeze_if_want_freeze
1327 if ($main::please_freeze)
1329 release_allocation();
1332 # kill some srun procs before freeze+stop
1333 map { $proc{$_} = {} } @_;
1336 killem (keys %proc);
1337 select (undef, undef, undef, 0.1);
1339 while (($died = waitpid (-1, WNOHANG)) > 0)
1341 delete $proc{$died};
1356 Log (undef, "Freeze not implemented");
1363 croak ("Thaw not implemented");
1379 $s =~ s{\\(.)}{$1 eq "n" ? "\n" : $1}ge;
1386 my $srunargs = shift;
1387 my $execargs = shift;
1388 my $opts = shift || {};
1390 my $args = $have_slurm ? [@$srunargs, @$execargs] : $execargs;
1391 print STDERR (join (" ",
1392 map { / / ? "'$_'" : $_ }
1395 if $ENV{CRUNCH_DEBUG};
1397 if (defined $stdin) {
1398 my $child = open STDIN, "-|";
1399 defined $child or die "no fork: $!";
1401 print $stdin or die $!;
1402 close STDOUT or die $!;
1407 return system (@$args) if $opts->{fork};
1410 warn "ENV size is ".length(join(" ",%ENV));
1411 die "exec failed: $!: @$args";
1415 sub ban_node_by_slot {
1416 # Don't start any new jobsteps on this node for 60 seconds
1418 $slot[$slotid]->{node}->{hold_until} = 60 + scalar time;
1419 $slot[$slotid]->{node}->{hold_count}++;
1420 Log (undef, "backing off node " . $slot[$slotid]->{node}->{name} . " for 60 seconds");
1425 my ($lockfile, $error_message) = @_;
1426 open L, ">", $lockfile or croak("$lockfile: $!");
1427 if (!flock L, LOCK_EX|LOCK_NB) {
1428 croak("Can't lock $lockfile: $error_message\n");
1435 # checkout-and-build
1439 my $destdir = $ENV{"CRUNCH_SRC"};
1440 my $commit = $ENV{"CRUNCH_SRC_COMMIT"};
1441 my $repo = $ENV{"CRUNCH_SRC_URL"};
1443 open L, ">", "$destdir.lock" or die "$destdir.lock: $!";
1445 if (readlink ("$destdir.commit") eq $commit && -d $destdir) {
1449 unlink "$destdir.commit";
1450 open STDOUT, ">", "$destdir.log";
1451 open STDERR, ">&STDOUT";
1454 my @git_archive_data = <DATA>;
1455 if (@git_archive_data) {
1456 open TARX, "|-", "tar", "-C", $destdir, "-xf", "-";
1457 print TARX @git_archive_data;
1459 die "'tar -C $destdir -xf -' exited $?: $!";
1464 chomp ($pwd = `pwd`);
1465 my $install_dir = $ENV{"CRUNCH_INSTALL"} || "$pwd/opt";
1468 for my $src_path ("$destdir/arvados/sdk/python") {
1470 shell_or_die ("virtualenv", $install_dir);
1471 shell_or_die ("cd $src_path && ./build.sh && $install_dir/bin/python setup.py install");
1475 if (-e "$destdir/crunch_scripts/install") {
1476 shell_or_die ("$destdir/crunch_scripts/install", $install_dir);
1477 } elsif (!-e "./install.sh" && -e "./tests/autotests.sh") {
1479 shell_or_die ("./tests/autotests.sh", $install_dir);
1480 } elsif (-e "./install.sh") {
1481 shell_or_die ("./install.sh", $install_dir);
1485 unlink "$destdir.commit.new";
1486 symlink ($commit, "$destdir.commit.new") or die "$destdir.commit.new: $!";
1487 rename ("$destdir.commit.new", "$destdir.commit") or die "$destdir.commit: $!";
1496 if ($ENV{"DEBUG"}) {
1497 print STDERR "@_\n";
1500 or die "@_ failed: $! exit 0x".sprintf("%x",$?);