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);
85 use File::Path qw( make_path );
87 use constant EX_TEMPFAIL => 75;
89 $ENV{"TMPDIR"} ||= "/tmp";
90 unless (defined $ENV{"CRUNCH_TMP"}) {
91 $ENV{"CRUNCH_TMP"} = $ENV{"TMPDIR"} . "/crunch-job";
92 if ($ENV{"USER"} ne "crunch" && $< != 0) {
93 # use a tmp dir unique for my uid
94 $ENV{"CRUNCH_TMP"} .= "-$<";
98 # Create the tmp directory if it does not exist
99 if ( ! -d $ENV{"CRUNCH_TMP"} ) {
100 make_path $ENV{"CRUNCH_TMP"} or die "Failed to create temporary working directory: " . $ENV{"CRUNCH_TMP"};
103 $ENV{"JOB_WORK"} = $ENV{"CRUNCH_TMP"} . "/work";
104 $ENV{"CRUNCH_INSTALL"} = "$ENV{CRUNCH_TMP}/opt";
105 $ENV{"CRUNCH_WORK"} = $ENV{"JOB_WORK"}; # deprecated
106 mkdir ($ENV{"JOB_WORK"});
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 some other crunch-job process has grabbed this job (or we see
156 # other evidence that the job is already underway) we exit
157 # EX_TEMPFAIL so crunch-dispatch (our parent process) doesn't
158 # mark the job as failed.
159 if ($Job->{'is_locked_by_uuid'}) {
160 Log(undef, "Job is locked by " . $Job->{'is_locked_by_uuid'});
163 if ($Job->{'success'} ne undef) {
164 Log(undef, "Job 'success' flag (" . $Job->{'success'} . ") is not null");
167 if ($Job->{'running'}) {
168 Log(undef, "Job 'running' flag is already set");
171 if ($Job->{'started_at'}) {
172 Log(undef, "Job 'started_at' time is already set (" . $Job->{'started_at'} . ")");
179 $Job = JSON::decode_json($jobspec);
183 map { croak ("No $_ specified") unless $Job->{$_} }
184 qw(script script_version script_parameters);
187 $Job->{'is_locked_by_uuid'} = $User->{'uuid'};
188 $Job->{'started_at'} = gmtime;
190 $Job = $arv->{'jobs'}->{'create'}->execute('job' => $Job);
194 $job_id = $Job->{'uuid'};
196 my $keep_logfile = $job_id . '.log.txt';
197 $local_logfile = File::Temp->new();
199 $Job->{'runtime_constraints'} ||= {};
200 $Job->{'runtime_constraints'}->{'max_tasks_per_node'} ||= 0;
201 my $max_ncpus = $Job->{'runtime_constraints'}->{'max_tasks_per_node'};
204 Log (undef, "check slurm allocation");
207 # Should use $ENV{SLURM_TASKS_PER_NODE} instead of sinfo? (eg. "4(x3),2,4(x2)")
211 my $localcpus = 0 + `grep -cw ^processor /proc/cpuinfo` || 1;
212 push @sinfo, "$localcpus localhost";
214 if (exists $ENV{SLURM_NODELIST})
216 push @sinfo, `sinfo -h --format='%c %N' --nodes=\Q$ENV{SLURM_NODELIST}\E`;
220 my ($ncpus, $slurm_nodelist) = split;
221 $ncpus = $max_ncpus if $max_ncpus && $ncpus > $max_ncpus;
224 while ($slurm_nodelist =~ s/^([^\[,]+?(\[.*?\])?)(,|$)//)
227 if ($nodelist =~ /\[((\d+)(-(\d+))?(,(\d+)(-(\d+))?)*)\]/)
230 foreach (split (",", $ranges))
243 push @nodelist, map {
245 $n =~ s/\[[-,\d]+\]/$_/;
252 push @nodelist, $nodelist;
255 foreach my $nodename (@nodelist)
257 Log (undef, "node $nodename - $ncpus slots");
258 my $node = { name => $nodename,
262 foreach my $cpu (1..$ncpus)
264 push @slot, { node => $node,
268 push @node, @nodelist;
273 # Ensure that we get one jobstep running on each allocated node before
274 # we start overloading nodes with concurrent steps
276 @slot = sort { $a->{cpu} <=> $b->{cpu} } @slot;
283 # Claim this job, and make sure nobody else does
284 unless ($Job->update_attributes('is_locked_by_uuid' => $User->{'uuid'}) &&
285 $Job->{'is_locked_by_uuid'} == $User->{'uuid'}) {
286 Log(undef, "Error while updating / locking job, exiting ".EX_TEMPFAIL);
289 $Job->update_attributes('started_at' => scalar gmtime,
292 'tasks_summary' => { 'failed' => 0,
299 Log (undef, "start");
300 $SIG{'INT'} = sub { $main::please_freeze = 1; };
301 $SIG{'QUIT'} = sub { $main::please_freeze = 1; };
302 $SIG{'TERM'} = \&croak;
303 $SIG{'TSTP'} = sub { $main::please_freeze = 1; };
304 $SIG{'ALRM'} = sub { $main::please_info = 1; };
305 $SIG{'CONT'} = sub { $main::please_continue = 1; };
306 $SIG{'HUP'} = sub { $main::please_refresh = 1; };
308 $main::please_freeze = 0;
309 $main::please_info = 0;
310 $main::please_continue = 0;
311 $main::please_refresh = 0;
312 my $jobsteps_must_output_keys = 0; # becomes 1 when any task outputs a key
314 grep { $ENV{$1} = $2 if /^(NOCACHE.*?)=(.*)/ } split ("\n", $$Job{knobs});
315 $ENV{"CRUNCH_JOB_UUID"} = $job_id;
316 $ENV{"JOB_UUID"} = $job_id;
320 my @jobstep_todo = ();
321 my @jobstep_done = ();
322 my @jobstep_tomerge = ();
323 my $jobstep_tomerge_level = 0;
325 my $squeue_kill_checked;
326 my $output_in_keep = 0;
327 my $latest_refresh = scalar time;
331 if (defined $Job->{thawedfromkey})
333 thaw ($Job->{thawedfromkey});
337 my $first_task = $arv->{'job_tasks'}->{'create'}->execute('job_task' => {
338 'job_uuid' => $Job->{'uuid'},
343 push @jobstep, { 'level' => 0,
345 'arvados_task' => $first_task,
347 push @jobstep_todo, 0;
353 must_lock_now("$ENV{CRUNCH_TMP}/.lock", "a job is already running here.");
360 $ENV{"CRUNCH_SRC_COMMIT"} = $Job->{script_version};
362 my $skip_install = ($local_job && $Job->{script_version} =~ m{^/});
365 if (!defined $no_clear_tmp) {
366 my $clear_tmp_cmd = 'rm -rf $JOB_WORK $CRUNCH_TMP/opt $CRUNCH_TMP/src*';
367 system($clear_tmp_cmd) == 0
368 or croak ("`$clear_tmp_cmd` failed: ".($?>>8));
370 $ENV{"CRUNCH_SRC"} = $Job->{script_version};
371 for my $src_path ("$ENV{CRUNCH_SRC}/arvados/sdk/python") {
373 system("virtualenv", "$ENV{CRUNCH_TMP}/opt") == 0
374 or croak ("virtualenv $ENV{CRUNCH_TMP}/opt failed: exit ".($?>>8));
375 system ("cd $src_path && ./build.sh && \$CRUNCH_TMP/opt/bin/python setup.py install")
377 or croak ("setup.py in $src_path failed: exit ".($?>>8));
385 $build_script = <DATA>;
387 Log (undef, "Install revision ".$Job->{script_version});
388 my $nodelist = join(",", @node);
390 if (!defined $no_clear_tmp) {
391 # Clean out crunch_tmp/work, crunch_tmp/opt, crunch_tmp/src*
393 my $cleanpid = fork();
396 srun (["srun", "--nodelist=$nodelist", "-D", $ENV{'TMPDIR'}],
397 ['bash', '-c', 'if mount | grep -q $JOB_WORK/; then for i in $JOB_WORK/*keep; do /bin/fusermount -z -u $i; done; fi; sleep 1; rm -rf $JOB_WORK $CRUNCH_TMP/opt $CRUNCH_TMP/src*']);
402 last if $cleanpid == waitpid (-1, WNOHANG);
403 freeze_if_want_freeze ($cleanpid);
404 select (undef, undef, undef, 0.1);
406 Log (undef, "Clean-work-dir exited $?");
409 # Install requested code version
412 my @srunargs = ("srun",
413 "--nodelist=$nodelist",
414 "-D", $ENV{'TMPDIR'}, "--job-name=$job_id");
416 $ENV{"CRUNCH_SRC_COMMIT"} = $Job->{script_version};
417 $ENV{"CRUNCH_SRC"} = "$ENV{CRUNCH_TMP}/src";
421 my $treeish = $Job->{'script_version'};
423 # If we're running under crunch-dispatch, it will have pulled the
424 # appropriate source tree into its own repository, and given us that
425 # repo's path as $git_dir. If we're running a "local" job, and a
426 # script_version was specified, it's up to the user to provide the
427 # full path to a local repository in Job->{repository}.
429 # TODO: Accept URLs too, not just local paths. Use git-ls-remote and
430 # git-archive --remote where appropriate.
432 # TODO: Accept a locally-hosted Arvados repository by name or
433 # UUID. Use arvados.v1.repositories.list or .get to figure out the
434 # appropriate fetch-url.
435 my $repo = $git_dir || $ENV{'CRUNCH_DEFAULT_GIT_DIR'} || $Job->{'repository'};
437 $ENV{"CRUNCH_SRC_URL"} = $repo;
439 if (-d "$repo/.git") {
440 # We were given a working directory, but we are only interested in
442 $repo = "$repo/.git";
445 # If this looks like a subversion r#, look for it in git-svn commit messages
447 if ($treeish =~ m{^\d{1,4}$}) {
448 my $gitlog = `git --git-dir=\Q$repo\E log --pretty="format:%H" --grep="git-svn-id:.*\@"\Q$treeish\E" " master`;
450 if ($gitlog =~ /^[a-f0-9]{40}$/) {
452 Log (undef, "Using commit $commit for script_version $treeish");
456 # If that didn't work, try asking git to look it up as a tree-ish.
458 if (!defined $commit) {
459 my $found = `git --git-dir=\Q$repo\E rev-list -1 ''\Q$treeish\E`;
461 if ($found =~ /^[0-9a-f]{40}$/s) {
463 if ($commit ne $treeish) {
464 # Make sure we record the real commit id in the database,
465 # frozentokey, logs, etc. -- instead of an abbreviation or a
466 # branch name which can become ambiguous or point to a
467 # different commit in the future.
468 $ENV{"CRUNCH_SRC_COMMIT"} = $commit;
469 Log (undef, "Using commit $commit for tree-ish $treeish");
470 if ($commit ne $treeish) {
471 $Job->{'script_version'} = $commit;
473 $Job->update_attributes('script_version' => $commit) or
474 croak("Error while updating job");
480 if (defined $commit) {
481 $ENV{"CRUNCH_SRC_COMMIT"} = $commit;
482 @execargs = ("sh", "-c",
483 "mkdir -p $ENV{CRUNCH_INSTALL} && cd $ENV{CRUNCH_TMP} && perl -");
484 $git_archive = `git --git-dir=\Q$repo\E archive ''\Q$commit\E`;
487 croak ("could not figure out commit id for $treeish");
490 # Note: this section is almost certainly unnecessary if we're
491 # running tasks in docker containers.
492 my $installpid = fork();
493 if ($installpid == 0)
495 srun (\@srunargs, \@execargs, {}, $build_script . $git_archive);
500 last if $installpid == waitpid (-1, WNOHANG);
501 freeze_if_want_freeze ($installpid);
502 select (undef, undef, undef, 0.1);
504 Log (undef, "Install exited $?");
509 # Grab our lock again (we might have deleted and re-created CRUNCH_TMP above)
510 must_lock_now("$ENV{CRUNCH_TMP}/.lock", "a job is already running here.");
513 # If this job requires a Docker image, install that.
514 my $docker_bin = "/usr/bin/docker.io";
515 my ($docker_locator, $docker_stream, $docker_hash);
516 if ($docker_locator = $Job->{docker_image_locator}) {
517 ($docker_stream, $docker_hash) = find_docker_image($docker_locator);
520 croak("No Docker image hash found from locator $docker_locator");
522 $docker_stream =~ s/^\.//;
523 my $docker_install_script = qq{
524 if ! $docker_bin images -q --no-trunc | grep -qxF \Q$docker_hash\E; then
525 arv-get \Q$docker_locator$docker_stream/$docker_hash.tar\E | $docker_bin load
528 my $docker_pid = fork();
529 if ($docker_pid == 0)
531 srun (["srun", "--nodelist=" . join(',', @node)],
532 ["/bin/sh", "-ec", $docker_install_script]);
537 last if $docker_pid == waitpid (-1, WNOHANG);
538 freeze_if_want_freeze ($docker_pid);
539 select (undef, undef, undef, 0.1);
543 croak("Installing Docker image from $docker_locator returned exit code $?");
547 foreach (qw (script script_version script_parameters runtime_constraints))
551 (ref($Job->{$_}) ? JSON::encode_json($Job->{$_}) : $Job->{$_}));
553 foreach (split (/\n/, $Job->{knobs}))
555 Log (undef, "knob " . $_);
560 $main::success = undef;
566 my $thisround_succeeded = 0;
567 my $thisround_failed = 0;
568 my $thisround_failed_multiple = 0;
570 @jobstep_todo = sort { $jobstep[$a]->{level} <=> $jobstep[$b]->{level}
571 or $a <=> $b } @jobstep_todo;
572 my $level = $jobstep[$jobstep_todo[0]]->{level};
573 Log (undef, "start level $level");
578 my @freeslot = (0..$#slot);
581 my $progress_is_dirty = 1;
582 my $progress_stats_updated = 0;
584 update_progress_stats();
589 for (my $todo_ptr = 0; $todo_ptr <= $#jobstep_todo; $todo_ptr ++)
591 my $id = $jobstep_todo[$todo_ptr];
592 my $Jobstep = $jobstep[$id];
593 if ($Jobstep->{level} != $level)
598 pipe $reader{$id}, "writer" or croak ($!);
599 my $flags = fcntl ($reader{$id}, F_GETFL, 0) or croak ($!);
600 fcntl ($reader{$id}, F_SETFL, $flags | O_NONBLOCK) or croak ($!);
602 my $childslot = $freeslot[0];
603 my $childnode = $slot[$childslot]->{node};
604 my $childslotname = join (".",
605 $slot[$childslot]->{node}->{name},
606 $slot[$childslot]->{cpu});
607 my $childpid = fork();
610 $SIG{'INT'} = 'DEFAULT';
611 $SIG{'QUIT'} = 'DEFAULT';
612 $SIG{'TERM'} = 'DEFAULT';
614 foreach (values (%reader))
618 fcntl ("writer", F_SETFL, 0) or croak ($!); # no close-on-exec
619 open(STDOUT,">&writer");
620 open(STDERR,">&writer");
625 delete $ENV{"GNUPGHOME"};
626 $ENV{"TASK_UUID"} = $Jobstep->{'arvados_task'}->{'uuid'};
627 $ENV{"TASK_QSEQUENCE"} = $id;
628 $ENV{"TASK_SEQUENCE"} = $level;
629 $ENV{"JOB_SCRIPT"} = $Job->{script};
630 while (my ($param, $value) = each %{$Job->{script_parameters}}) {
631 $param =~ tr/a-z/A-Z/;
632 $ENV{"JOB_PARAMETER_$param"} = $value;
634 $ENV{"TASK_SLOT_NODE"} = $slot[$childslot]->{node}->{name};
635 $ENV{"TASK_SLOT_NUMBER"} = $slot[$childslot]->{cpu};
636 $ENV{"TASK_WORK"} = $ENV{"JOB_WORK"}."/$id.$$";
637 $ENV{"HOME"} = $ENV{"TASK_WORK"};
638 $ENV{"TASK_KEEPMOUNT"} = $ENV{"TASK_WORK"}.".keep";
639 $ENV{"TASK_TMPDIR"} = $ENV{"TASK_WORK"}; # deprecated
640 $ENV{"CRUNCH_NODE_SLOTS"} = $slot[$childslot]->{node}->{ncpus};
641 $ENV{"PATH"} = $ENV{"CRUNCH_INSTALL"} . "/bin:" . $ENV{"PATH"};
647 "--nodelist=".$childnode->{name},
648 qw(-n1 -c1 -N1 -D), $ENV{'TMPDIR'},
649 "--job-name=$job_id.$id.$$",
651 my $build_script_to_send = "";
653 "if [ -e $ENV{TASK_WORK} ]; then rm -rf $ENV{TASK_WORK}; fi; "
654 ."mkdir -p $ENV{CRUNCH_TMP} $ENV{JOB_WORK} $ENV{TASK_WORK} $ENV{TASK_KEEPMOUNT} "
655 ."&& cd $ENV{CRUNCH_TMP} ";
658 $build_script_to_send = $build_script;
660 $command .= "&& exec arv-mount --allow-other $ENV{TASK_KEEPMOUNT} --exec ";
663 $command .= "crunchstat -cgroup-root=/sys/fs/cgroup -cgroup-parent=docker -cgroup-cid=$ENV{TASK_WORK}/docker.cid -poll=10000 ";
664 $command .= "$docker_bin run --rm=true --attach=stdout --attach=stderr --user=crunch --cidfile=$ENV{TASK_WORK}/docker.cid ";
665 # Dynamically configure the container to use the host system as its
666 # DNS server. Get the host's global addresses from the ip command,
667 # and turn them into docker --dns options using gawk.
669 q{$(ip -o address show scope global |
670 gawk 'match($4, /^([0-9\.:]+)\//, x){print "--dns", x[1]}') };
671 $command .= "--volume=\Q$ENV{TASK_KEEPMOUNT}:/keep:ro\E ";
672 $command .= "--env=\QHOME=/home/crunch\E ";
673 while (my ($env_key, $env_val) = each %ENV)
675 if ($env_key =~ /^(ARVADOS|JOB|TASK)_/) {
676 if ($env_key eq "TASK_KEEPMOUNT") {
677 $command .= "--env=\QTASK_KEEPMOUNT=/keep\E ";
680 $command .= "--env=\Q$env_key=$env_val\E ";
684 $command .= "--env=\QCRUNCH_NODE_SLOTS=$ENV{CRUNCH_NODE_SLOTS}\E ";
685 $command .= "--env=\QCRUNCH_SRC=/tmp/crunch-src\E ";
686 $command .= "\Q$docker_hash\E ";
687 $command .= "stdbuf --output=0 --error=0 ";
688 $command .= "perl - ";
689 $command .= "/tmp/crunch-src/crunch_scripts/" . $Job->{"script"};
692 $command .= "crunchstat -cgroup-root=/sys/fs/cgroup -poll=10000 ";
693 $command .= "stdbuf --output=0 --error=0 ";
694 $command .= "perl - ";
695 $command .= "$ENV{CRUNCH_SRC}/crunch_scripts/" . $Job->{"script"};
698 my @execargs = ('bash', '-c', $command);
699 srun (\@srunargs, \@execargs, undef, $build_script_to_send);
700 # exec() failed, we assume nothing happened.
701 Log(undef, "srun() failed on build script");
705 if (!defined $childpid)
712 $proc{$childpid} = { jobstep => $id,
715 jobstepname => "$job_id.$id.$childpid",
717 croak ("assert failed: \$slot[$childslot]->{'pid'} exists") if exists $slot[$childslot]->{pid};
718 $slot[$childslot]->{pid} = $childpid;
720 Log ($id, "job_task ".$Jobstep->{'arvados_task'}->{'uuid'});
721 Log ($id, "child $childpid started on $childslotname");
722 $Jobstep->{starttime} = time;
723 $Jobstep->{node} = $childnode->{name};
724 $Jobstep->{slotindex} = $childslot;
725 delete $Jobstep->{stderr};
726 delete $Jobstep->{finishtime};
728 splice @jobstep_todo, $todo_ptr, 1;
731 $progress_is_dirty = 1;
735 (@slot > @freeslot && $todo_ptr+1 > $#jobstep_todo))
737 last THISROUND if $main::please_freeze;
738 if ($main::please_info)
740 $main::please_info = 0;
744 update_progress_stats();
751 check_refresh_wanted();
753 update_progress_stats();
754 select (undef, undef, undef, 0.1);
756 elsif (time - $progress_stats_updated >= 30)
758 update_progress_stats();
760 if (($thisround_failed_multiple >= 8 && $thisround_succeeded == 0) ||
761 ($thisround_failed_multiple >= 16 && $thisround_failed_multiple > $thisround_succeeded))
763 my $message = "Repeated failure rate too high ($thisround_failed_multiple/"
764 .($thisround_failed+$thisround_succeeded)
765 .") -- giving up on this round";
766 Log (undef, $message);
770 # move slots from freeslot to holdslot (or back to freeslot) if necessary
771 for (my $i=$#freeslot; $i>=0; $i--) {
772 if ($slot[$freeslot[$i]]->{node}->{hold_until} > scalar time) {
773 push @holdslot, (splice @freeslot, $i, 1);
776 for (my $i=$#holdslot; $i>=0; $i--) {
777 if ($slot[$holdslot[$i]]->{node}->{hold_until} <= scalar time) {
778 push @freeslot, (splice @holdslot, $i, 1);
782 # give up if no nodes are succeeding
783 if (!grep { $_->{node}->{losing_streak} == 0 &&
784 $_->{node}->{hold_count} < 4 } @slot) {
785 my $message = "Every node has failed -- giving up on this round";
786 Log (undef, $message);
793 push @freeslot, splice @holdslot;
794 map { $slot[$freeslot[$_]]->{node}->{losing_streak} = 0 } (0..$#freeslot);
797 Log (undef, "wait for last ".(scalar keys %proc)." children to finish");
800 if ($main::please_continue) {
801 $main::please_continue = 0;
804 $main::please_info = 0, freeze(), collate_output(), save_meta(1) if $main::please_info;
808 check_refresh_wanted();
810 update_progress_stats();
811 select (undef, undef, undef, 0.1);
812 killem (keys %proc) if $main::please_freeze;
816 update_progress_stats();
817 freeze_if_want_freeze();
820 if (!defined $main::success)
823 $thisround_succeeded == 0 &&
824 ($thisround_failed == 0 || $thisround_failed > 4))
826 my $message = "stop because $thisround_failed tasks failed and none succeeded";
827 Log (undef, $message);
836 goto ONELEVEL if !defined $main::success;
839 release_allocation();
841 my $collated_output = &collate_output();
844 $Job->update_attributes('running' => 0,
845 'success' => $collated_output && $main::success,
846 'finished_at' => scalar gmtime)
849 if (!$collated_output) {
850 Log(undef, "output undef");
854 open(my $orig_manifest, '-|', 'arv-get', $collated_output)
855 or die "failed to get collated manifest: $!";
856 my $orig_manifest_text = '';
857 while (my $manifest_line = <$orig_manifest>) {
858 $orig_manifest_text .= $manifest_line;
860 my $output = $arv->{'collections'}->{'create'}->execute('collection' => {
861 'manifest_text' => $orig_manifest_text,
863 Log(undef, "output uuid " . $output->{uuid});
864 Log(undef, "output hash " . $output->{portable_data_hash});
865 $Job->update_attributes('output' => $output->{portable_data_hash}) if $job_has_uuid;
868 Log (undef, "Failed to register output manifest: $@");
872 Log (undef, "finish");
875 exit ($Job->{'success'} ? 1 : 0);
879 sub update_progress_stats
881 $progress_stats_updated = time;
882 return if !$progress_is_dirty;
883 my ($todo, $done, $running) = (scalar @jobstep_todo,
884 scalar @jobstep_done,
885 scalar @slot - scalar @freeslot - scalar @holdslot);
886 $Job->{'tasks_summary'} ||= {};
887 $Job->{'tasks_summary'}->{'todo'} = $todo;
888 $Job->{'tasks_summary'}->{'done'} = $done;
889 $Job->{'tasks_summary'}->{'running'} = $running;
891 $Job->update_attributes('tasks_summary' => $Job->{'tasks_summary'});
893 Log (undef, "status: $done done, $running running, $todo todo");
894 $progress_is_dirty = 0;
901 my $pid = waitpid (-1, WNOHANG);
902 return 0 if $pid <= 0;
904 my $whatslot = ($slot[$proc{$pid}->{slot}]->{node}->{name}
906 . $slot[$proc{$pid}->{slot}]->{cpu});
907 my $jobstepid = $proc{$pid}->{jobstep};
908 my $elapsed = time - $proc{$pid}->{time};
909 my $Jobstep = $jobstep[$jobstepid];
911 my $childstatus = $?;
912 my $exitvalue = $childstatus >> 8;
913 my $exitinfo = sprintf("exit %d signal %d%s",
916 ($childstatus & 128 ? ' core dump' : ''));
917 $Jobstep->{'arvados_task'}->reload;
918 my $task_success = $Jobstep->{'arvados_task'}->{success};
920 Log ($jobstepid, "child $pid on $whatslot $exitinfo success=$task_success");
922 if (!defined $task_success) {
923 # task did not indicate one way or the other --> fail
924 $Jobstep->{'arvados_task'}->{success} = 0;
925 $Jobstep->{'arvados_task'}->save;
932 $temporary_fail ||= $Jobstep->{node_fail};
933 $temporary_fail ||= ($exitvalue == 111);
936 ++$thisround_failed_multiple if $Jobstep->{'failures'} >= 1;
938 # Check for signs of a failed or misconfigured node
939 if (++$slot[$proc{$pid}->{slot}]->{node}->{losing_streak} >=
940 2+$slot[$proc{$pid}->{slot}]->{node}->{ncpus}) {
941 # Don't count this against jobstep failure thresholds if this
942 # node is already suspected faulty and srun exited quickly
943 if ($slot[$proc{$pid}->{slot}]->{node}->{hold_until} &&
945 Log ($jobstepid, "blaming failure on suspect node " .
946 $slot[$proc{$pid}->{slot}]->{node}->{name});
947 $temporary_fail ||= 1;
949 ban_node_by_slot($proc{$pid}->{slot});
952 Log ($jobstepid, sprintf('failure (#%d, %s) after %d seconds',
953 ++$Jobstep->{'failures'},
954 $temporary_fail ? 'temporary ' : 'permanent',
957 if (!$temporary_fail || $Jobstep->{'failures'} >= 3) {
958 # Give up on this task, and the whole job
960 $main::please_freeze = 1;
963 # Put this task back on the todo queue
964 push @jobstep_todo, $jobstepid;
966 $Job->{'tasks_summary'}->{'failed'}++;
970 ++$thisround_succeeded;
971 $slot[$proc{$pid}->{slot}]->{node}->{losing_streak} = 0;
972 $slot[$proc{$pid}->{slot}]->{node}->{hold_until} = 0;
973 push @jobstep_done, $jobstepid;
974 Log ($jobstepid, "success in $elapsed seconds");
976 $Jobstep->{exitcode} = $childstatus;
977 $Jobstep->{finishtime} = time;
978 process_stderr ($jobstepid, $task_success);
979 Log ($jobstepid, "output " . $Jobstep->{'arvados_task'}->{output});
981 close $reader{$jobstepid};
982 delete $reader{$jobstepid};
983 delete $slot[$proc{$pid}->{slot}]->{pid};
984 push @freeslot, $proc{$pid}->{slot};
989 my $newtask_list = [];
992 $newtask_results = $arv->{'job_tasks'}->{'list'}->execute(
994 'created_by_job_task_uuid' => $Jobstep->{'arvados_task'}->{uuid}
996 'order' => 'qsequence',
997 'offset' => scalar(@$newtask_list),
999 push(@$newtask_list, @{$newtask_results->{items}});
1000 } while (@{$newtask_results->{items}});
1001 foreach my $arvados_task (@$newtask_list) {
1003 'level' => $arvados_task->{'sequence'},
1005 'arvados_task' => $arvados_task
1007 push @jobstep, $jobstep;
1008 push @jobstep_todo, $#jobstep;
1012 $progress_is_dirty = 1;
1016 sub check_refresh_wanted
1018 my @stat = stat $ENV{"CRUNCH_REFRESH_TRIGGER"};
1019 if (@stat && $stat[9] > $latest_refresh) {
1020 $latest_refresh = scalar time;
1021 if ($job_has_uuid) {
1022 my $Job2 = $arv->{'jobs'}->{'get'}->execute('uuid' => $jobspec);
1023 for my $attr ('cancelled_at',
1024 'cancelled_by_user_uuid',
1025 'cancelled_by_client_uuid') {
1026 $Job->{$attr} = $Job2->{$attr};
1028 if ($Job->{'cancelled_at'}) {
1029 Log (undef, "Job cancelled at " . $Job->{cancelled_at} .
1030 " by user " . $Job->{cancelled_by_user_uuid});
1032 $main::please_freeze = 1;
1040 # return if the kill list was checked <4 seconds ago
1041 if (defined $squeue_kill_checked && $squeue_kill_checked > time - 4)
1045 $squeue_kill_checked = time;
1047 # use killem() on procs whose killtime is reached
1050 if (exists $proc{$_}->{killtime}
1051 && $proc{$_}->{killtime} <= time)
1057 # return if the squeue was checked <60 seconds ago
1058 if (defined $squeue_checked && $squeue_checked > time - 60)
1062 $squeue_checked = time;
1066 # here is an opportunity to check for mysterious problems with local procs
1070 # get a list of steps still running
1071 my @squeue = `squeue -s -h -o '%i %j' && echo ok`;
1073 if ($squeue[-1] ne "ok")
1079 # which of my jobsteps are running, according to squeue?
1083 if (/^(\d+)\.(\d+) (\S+)/)
1085 if ($1 eq $ENV{SLURM_JOBID})
1092 # which of my active child procs (>60s old) were not mentioned by squeue?
1093 foreach (keys %proc)
1095 if ($proc{$_}->{time} < time - 60
1096 && !exists $ok{$proc{$_}->{jobstepname}}
1097 && !exists $proc{$_}->{killtime})
1099 # kill this proc if it hasn't exited in 30 seconds
1100 $proc{$_}->{killtime} = time + 30;
1106 sub release_allocation
1110 Log (undef, "release job allocation");
1111 system "scancel $ENV{SLURM_JOBID}";
1119 foreach my $job (keys %reader)
1122 while (0 < sysread ($reader{$job}, $buf, 8192))
1124 print STDERR $buf if $ENV{CRUNCH_DEBUG};
1125 $jobstep[$job]->{stderr} .= $buf;
1126 preprocess_stderr ($job);
1127 if (length ($jobstep[$job]->{stderr}) > 16384)
1129 substr ($jobstep[$job]->{stderr}, 0, 8192) = "";
1138 sub preprocess_stderr
1142 while ($jobstep[$job]->{stderr} =~ /^(.*?)\n/) {
1144 substr $jobstep[$job]->{stderr}, 0, 1+length($line), "";
1145 Log ($job, "stderr $line");
1146 if ($line =~ /srun: error: (SLURM job $ENV{SLURM_JOB_ID} has expired|Unable to confirm allocation for job $ENV{SLURM_JOB_ID})/) {
1148 $main::please_freeze = 1;
1150 elsif ($line =~ /srun: error: (Node failure on|Unable to create job step) /) {
1151 $jobstep[$job]->{node_fail} = 1;
1152 ban_node_by_slot($jobstep[$job]->{slotindex});
1161 my $task_success = shift;
1162 preprocess_stderr ($job);
1165 Log ($job, "stderr $_");
1166 } split ("\n", $jobstep[$job]->{stderr});
1172 my ($keep, $child_out, $output_block);
1174 my $cmd = "arv-get \Q$hash\E";
1175 open($keep, '-|', $cmd) or die "fetch_block: $cmd: $!";
1179 my $bytes = sysread($keep, $buf, 1024 * 1024);
1180 if (!defined $bytes) {
1181 die "reading from arv-get: $!";
1182 } elsif ($bytes == 0) {
1183 # sysread returns 0 at the end of the pipe.
1186 # some bytes were read into buf.
1187 $output_block .= $buf;
1191 return $output_block;
1196 Log (undef, "collate");
1198 my ($child_out, $child_in);
1199 my $pid = open2($child_out, $child_in, 'arv-put', '--raw');
1203 next if (!exists $_->{'arvados_task'}->{'output'} ||
1204 !$_->{'arvados_task'}->{'success'});
1205 my $output = $_->{'arvados_task'}->{output};
1206 if ($output !~ /^[0-9a-f]{32}(\+\S+)*$/)
1208 $output_in_keep ||= $output =~ / [0-9a-f]{32}\S*\+K/;
1209 print $child_in $output;
1211 elsif (@jobstep == 1)
1213 $joboutput = $output;
1216 elsif (defined (my $outblock = fetch_block ($output)))
1218 $output_in_keep ||= $outblock =~ / [0-9a-f]{32}\S*\+K/;
1219 print $child_in $outblock;
1223 Log (undef, "XXX fetch_block($output) failed XXX");
1229 if (!defined $joboutput) {
1230 my $s = IO::Select->new($child_out);
1231 if ($s->can_read(120)) {
1232 sysread($child_out, $joboutput, 64 * 1024 * 1024);
1235 Log (undef, "timed out reading from 'arv-put'");
1248 my $sig = 2; # SIGINT first
1249 if (exists $proc{$_}->{"sent_$sig"} &&
1250 time - $proc{$_}->{"sent_$sig"} > 4)
1252 $sig = 15; # SIGTERM if SIGINT doesn't work
1254 if (exists $proc{$_}->{"sent_$sig"} &&
1255 time - $proc{$_}->{"sent_$sig"} > 4)
1257 $sig = 9; # SIGKILL if SIGTERM doesn't work
1259 if (!exists $proc{$_}->{"sent_$sig"})
1261 Log ($proc{$_}->{jobstep}, "sending 2x signal $sig to pid $_");
1263 select (undef, undef, undef, 0.1);
1266 kill $sig, $_; # srun wants two SIGINT to really interrupt
1268 $proc{$_}->{"sent_$sig"} = time;
1269 $proc{$_}->{"killedafter"} = time - $proc{$_}->{"time"};
1279 vec($bits,fileno($_),1) = 1;
1285 sub Log # ($jobstep_id, $logmessage)
1287 if ($_[1] =~ /\n/) {
1288 for my $line (split (/\n/, $_[1])) {
1293 my $fh = select STDERR; $|=1; select $fh;
1294 my $message = sprintf ("%s %d %s %s", $job_id, $$, @_);
1295 $message =~ s{([^ -\176])}{"\\" . sprintf ("%03o", ord($1))}ge;
1298 if ($local_logfile || -t STDERR) {
1299 my @gmtime = gmtime;
1300 $datetime = sprintf ("%04d-%02d-%02d_%02d:%02d:%02d",
1301 $gmtime[5]+1900, $gmtime[4]+1, @gmtime[3,2,1,0]);
1303 print STDERR ((-t STDERR) ? ($datetime." ".$message) : $message);
1305 if ($local_logfile) {
1306 print $local_logfile $datetime . " " . $message;
1313 my ($package, $file, $line) = caller;
1314 my $message = "@_ at $file line $line\n";
1315 Log (undef, $message);
1316 freeze() if @jobstep_todo;
1317 collate_output() if @jobstep_todo;
1319 save_meta() if $local_logfile;
1326 return if !$job_has_uuid;
1327 $Job->update_attributes('running' => 0,
1329 'finished_at' => scalar gmtime);
1335 my $justcheckpoint = shift; # false if this will be the last meta saved
1336 return if $justcheckpoint; # checkpointing is not relevant post-Warehouse.pm
1338 $local_logfile->flush;
1339 my $cmd = "arv-put --portable-data-hash --filename ''\Q$keep_logfile\E "
1340 . quotemeta($local_logfile->filename);
1341 my $loglocator = `$cmd`;
1342 die "system $cmd failed: $?" if $?;
1345 $local_logfile = undef; # the temp file is automatically deleted
1346 Log (undef, "log manifest is $loglocator");
1347 $Job->{'log'} = $loglocator;
1348 $Job->update_attributes('log', $loglocator) if $job_has_uuid;
1352 sub freeze_if_want_freeze
1354 if ($main::please_freeze)
1356 release_allocation();
1359 # kill some srun procs before freeze+stop
1360 map { $proc{$_} = {} } @_;
1363 killem (keys %proc);
1364 select (undef, undef, undef, 0.1);
1366 while (($died = waitpid (-1, WNOHANG)) > 0)
1368 delete $proc{$died};
1383 Log (undef, "Freeze not implemented");
1390 croak ("Thaw not implemented");
1406 $s =~ s{\\(.)}{$1 eq "n" ? "\n" : $1}ge;
1413 my $srunargs = shift;
1414 my $execargs = shift;
1415 my $opts = shift || {};
1417 my $args = $have_slurm ? [@$srunargs, @$execargs] : $execargs;
1418 print STDERR (join (" ",
1419 map { / / ? "'$_'" : $_ }
1422 if $ENV{CRUNCH_DEBUG};
1424 if (defined $stdin) {
1425 my $child = open STDIN, "-|";
1426 defined $child or die "no fork: $!";
1428 print $stdin or die $!;
1429 close STDOUT or die $!;
1434 return system (@$args) if $opts->{fork};
1437 warn "ENV size is ".length(join(" ",%ENV));
1438 die "exec failed: $!: @$args";
1442 sub ban_node_by_slot {
1443 # Don't start any new jobsteps on this node for 60 seconds
1445 $slot[$slotid]->{node}->{hold_until} = 60 + scalar time;
1446 $slot[$slotid]->{node}->{hold_count}++;
1447 Log (undef, "backing off node " . $slot[$slotid]->{node}->{name} . " for 60 seconds");
1452 my ($lockfile, $error_message) = @_;
1453 open L, ">", $lockfile or croak("$lockfile: $!");
1454 if (!flock L, LOCK_EX|LOCK_NB) {
1455 croak("Can't lock $lockfile: $error_message\n");
1459 sub find_docker_image {
1460 # Given a Keep locator, check to see if it contains a Docker image.
1461 # If so, return its stream name and Docker hash.
1462 # If not, return undef for both values.
1463 my $locator = shift;
1464 if (my $image = $arv->{collections}->{get}->execute(uuid => $locator)) {
1465 my @file_list = @{$image->{files}};
1466 if ((scalar(@file_list) == 1) &&
1467 ($file_list[0][1] =~ /^([0-9A-Fa-f]{64})\.tar$/)) {
1468 return ($file_list[0][0], $1);
1471 return (undef, undef);
1477 # checkout-and-build
1480 use File::Path qw( make_path );
1482 my $destdir = $ENV{"CRUNCH_SRC"};
1483 my $commit = $ENV{"CRUNCH_SRC_COMMIT"};
1484 my $repo = $ENV{"CRUNCH_SRC_URL"};
1485 my $task_work = $ENV{"TASK_WORK"};
1487 for my $dir ($destdir, $task_work) {
1490 -e $dir or die "Failed to create temporary directory ($dir): $!";
1494 open L, ">", "$destdir.lock" or die "$destdir.lock: $!";
1496 if (readlink ("$destdir.commit") eq $commit && -d $destdir) {
1499 die "Cannot exec `@ARGV`: $!";
1505 unlink "$destdir.commit";
1506 open STDOUT, ">", "$destdir.log";
1507 open STDERR, ">&STDOUT";
1510 my @git_archive_data = <DATA>;
1511 if (@git_archive_data) {
1512 open TARX, "|-", "tar", "-C", $destdir, "-xf", "-";
1513 print TARX @git_archive_data;
1515 die "'tar -C $destdir -xf -' exited $?: $!";
1520 chomp ($pwd = `pwd`);
1521 my $install_dir = $ENV{"CRUNCH_INSTALL"} || "$pwd/opt";
1524 for my $src_path ("$destdir/arvados/sdk/python") {
1526 shell_or_die ("virtualenv", $install_dir);
1527 shell_or_die ("cd $src_path && ./build.sh && $install_dir/bin/python setup.py install");
1531 if (-e "$destdir/crunch_scripts/install") {
1532 shell_or_die ("$destdir/crunch_scripts/install", $install_dir);
1533 } elsif (!-e "./install.sh" && -e "./tests/autotests.sh") {
1535 shell_or_die ("./tests/autotests.sh", $install_dir);
1536 } elsif (-e "./install.sh") {
1537 shell_or_die ("./install.sh", $install_dir);
1541 unlink "$destdir.commit.new";
1542 symlink ($commit, "$destdir.commit.new") or die "$destdir.commit.new: $!";
1543 rename ("$destdir.commit.new", "$destdir.commit") or die "$destdir.commit: $!";
1550 die "Cannot exec `@ARGV`: $!";
1557 if ($ENV{"DEBUG"}) {
1558 print STDERR "@_\n";
1561 or die "@_ failed: $! exit 0x".sprintf("%x",$?);