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 POSIX qw(strftime);
78 use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
80 use Digest::MD5 qw(md5_hex);
86 use File::Path qw( make_path );
88 use constant EX_TEMPFAIL => 75;
90 $ENV{"TMPDIR"} ||= "/tmp";
91 unless (defined $ENV{"CRUNCH_TMP"}) {
92 $ENV{"CRUNCH_TMP"} = $ENV{"TMPDIR"} . "/crunch-job";
93 if ($ENV{"USER"} ne "crunch" && $< != 0) {
94 # use a tmp dir unique for my uid
95 $ENV{"CRUNCH_TMP"} .= "-$<";
99 # Create the tmp directory if it does not exist
100 if ( ! -d $ENV{"CRUNCH_TMP"} ) {
101 make_path $ENV{"CRUNCH_TMP"} or die "Failed to create temporary working directory: " . $ENV{"CRUNCH_TMP"};
104 $ENV{"JOB_WORK"} = $ENV{"CRUNCH_TMP"} . "/work";
105 $ENV{"CRUNCH_INSTALL"} = "$ENV{CRUNCH_TMP}/opt";
106 $ENV{"CRUNCH_WORK"} = $ENV{"JOB_WORK"}; # deprecated
107 mkdir ($ENV{"JOB_WORK"});
115 GetOptions('force-unlock' => \$force_unlock,
116 'git-dir=s' => \$git_dir,
117 'job=s' => \$jobspec,
118 'job-api-token=s' => \$job_api_token,
119 'no-clear-tmp' => \$no_clear_tmp,
120 'resume-stash=s' => \$resume_stash,
123 if (defined $job_api_token) {
124 $ENV{ARVADOS_API_TOKEN} = $job_api_token;
127 my $have_slurm = exists $ENV{SLURM_JOBID} && exists $ENV{SLURM_NODELIST};
128 my $job_has_uuid = $jobspec =~ /^[-a-z\d]+$/;
129 my $local_job = !$job_has_uuid;
134 $main::ENV{CRUNCH_DEBUG} = 1;
138 $main::ENV{CRUNCH_DEBUG} = 0;
143 my $arv = Arvados->new('apiVersion' => 'v1');
146 my $User = $arv->{'users'}->{'current'}->execute;
154 $Job = $arv->{'jobs'}->{'get'}->execute('uuid' => $jobspec);
155 if (!$force_unlock) {
156 # If some other crunch-job process has grabbed this job (or we see
157 # other evidence that the job is already underway) we exit
158 # EX_TEMPFAIL so crunch-dispatch (our parent process) doesn't
159 # mark the job as failed.
160 if ($Job->{'is_locked_by_uuid'}) {
161 Log(undef, "Job is locked by " . $Job->{'is_locked_by_uuid'});
164 if ($Job->{'success'} ne undef) {
165 Log(undef, "Job 'success' flag (" . $Job->{'success'} . ") is not null");
168 if ($Job->{'running'}) {
169 Log(undef, "Job 'running' flag is already set");
172 if ($Job->{'started_at'}) {
173 Log(undef, "Job 'started_at' time is already set (" . $Job->{'started_at'} . ")");
180 $Job = JSON::decode_json($jobspec);
184 map { croak ("No $_ specified") unless $Job->{$_} }
185 qw(script script_version script_parameters);
188 $Job->{'is_locked_by_uuid'} = $User->{'uuid'};
189 $Job->{'started_at'} = gmtime;
191 $Job = $arv->{'jobs'}->{'create'}->execute('job' => $Job);
195 $job_id = $Job->{'uuid'};
197 my $keep_logfile = $job_id . '.log.txt';
198 $local_logfile = File::Temp->new();
200 $Job->{'runtime_constraints'} ||= {};
201 $Job->{'runtime_constraints'}->{'max_tasks_per_node'} ||= 0;
202 my $max_ncpus = $Job->{'runtime_constraints'}->{'max_tasks_per_node'};
205 Log (undef, "check slurm allocation");
208 # Should use $ENV{SLURM_TASKS_PER_NODE} instead of sinfo? (eg. "4(x3),2,4(x2)")
212 my $localcpus = 0 + `grep -cw ^processor /proc/cpuinfo` || 1;
213 push @sinfo, "$localcpus localhost";
215 if (exists $ENV{SLURM_NODELIST})
217 push @sinfo, `sinfo -h --format='%c %N' --nodes=\Q$ENV{SLURM_NODELIST}\E`;
221 my ($ncpus, $slurm_nodelist) = split;
222 $ncpus = $max_ncpus if $max_ncpus && $ncpus > $max_ncpus;
225 while ($slurm_nodelist =~ s/^([^\[,]+?(\[.*?\])?)(,|$)//)
228 if ($nodelist =~ /\[((\d+)(-(\d+))?(,(\d+)(-(\d+))?)*)\]/)
231 foreach (split (",", $ranges))
244 push @nodelist, map {
246 $n =~ s/\[[-,\d]+\]/$_/;
253 push @nodelist, $nodelist;
256 foreach my $nodename (@nodelist)
258 Log (undef, "node $nodename - $ncpus slots");
259 my $node = { name => $nodename,
263 foreach my $cpu (1..$ncpus)
265 push @slot, { node => $node,
269 push @node, @nodelist;
274 # Ensure that we get one jobstep running on each allocated node before
275 # we start overloading nodes with concurrent steps
277 @slot = sort { $a->{cpu} <=> $b->{cpu} } @slot;
284 # Claim this job, and make sure nobody else does
285 unless ($Job->update_attributes('is_locked_by_uuid' => $User->{'uuid'}) &&
286 $Job->{'is_locked_by_uuid'} == $User->{'uuid'}) {
287 Log(undef, "Error while updating / locking job, exiting ".EX_TEMPFAIL);
290 $Job->update_attributes('started_at' => scalar gmtime,
293 'tasks_summary' => { 'failed' => 0,
300 Log (undef, "start");
301 $SIG{'INT'} = sub { $main::please_freeze = 1; };
302 $SIG{'QUIT'} = sub { $main::please_freeze = 1; };
303 $SIG{'TERM'} = \&croak;
304 $SIG{'TSTP'} = sub { $main::please_freeze = 1; };
305 $SIG{'ALRM'} = sub { $main::please_info = 1; };
306 $SIG{'CONT'} = sub { $main::please_continue = 1; };
307 $SIG{'HUP'} = sub { $main::please_refresh = 1; };
309 $main::please_freeze = 0;
310 $main::please_info = 0;
311 $main::please_continue = 0;
312 $main::please_refresh = 0;
313 my $jobsteps_must_output_keys = 0; # becomes 1 when any task outputs a key
315 grep { $ENV{$1} = $2 if /^(NOCACHE.*?)=(.*)/ } split ("\n", $$Job{knobs});
316 $ENV{"CRUNCH_JOB_UUID"} = $job_id;
317 $ENV{"JOB_UUID"} = $job_id;
321 my @jobstep_todo = ();
322 my @jobstep_done = ();
323 my @jobstep_tomerge = ();
324 my $jobstep_tomerge_level = 0;
326 my $squeue_kill_checked;
327 my $output_in_keep = 0;
328 my $latest_refresh = scalar time;
332 if (defined $Job->{thawedfromkey})
334 thaw ($Job->{thawedfromkey});
338 my $first_task = $arv->{'job_tasks'}->{'create'}->execute('job_task' => {
339 'job_uuid' => $Job->{'uuid'},
344 push @jobstep, { 'level' => 0,
346 'arvados_task' => $first_task,
348 push @jobstep_todo, 0;
354 must_lock_now("$ENV{CRUNCH_TMP}/.lock", "a job is already running here.");
361 $ENV{"CRUNCH_SRC_COMMIT"} = $Job->{script_version};
363 my $skip_install = ($local_job && $Job->{script_version} =~ m{^/});
366 if (!defined $no_clear_tmp) {
367 my $clear_tmp_cmd = 'rm -rf $JOB_WORK $CRUNCH_TMP/opt $CRUNCH_TMP/src*';
368 system($clear_tmp_cmd) == 0
369 or croak ("`$clear_tmp_cmd` failed: ".($?>>8));
371 $ENV{"CRUNCH_SRC"} = $Job->{script_version};
372 for my $src_path ("$ENV{CRUNCH_SRC}/arvados/sdk/python") {
374 system("virtualenv", "$ENV{CRUNCH_TMP}/opt") == 0
375 or croak ("virtualenv $ENV{CRUNCH_TMP}/opt failed: exit ".($?>>8));
376 system ("cd $src_path && ./build.sh && \$CRUNCH_TMP/opt/bin/python setup.py install")
378 or croak ("setup.py in $src_path failed: exit ".($?>>8));
386 $build_script = <DATA>;
388 Log (undef, "Install revision ".$Job->{script_version});
389 my $nodelist = join(",", @node);
391 if (!defined $no_clear_tmp) {
392 # Clean out crunch_tmp/work, crunch_tmp/opt, crunch_tmp/src*
394 my $cleanpid = fork();
397 srun (["srun", "--nodelist=$nodelist", "-D", $ENV{'TMPDIR'}],
398 ['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*']);
403 last if $cleanpid == waitpid (-1, WNOHANG);
404 freeze_if_want_freeze ($cleanpid);
405 select (undef, undef, undef, 0.1);
407 Log (undef, "Clean-work-dir exited $?");
410 # Install requested code version
413 my @srunargs = ("srun",
414 "--nodelist=$nodelist",
415 "-D", $ENV{'TMPDIR'}, "--job-name=$job_id");
417 $ENV{"CRUNCH_SRC_COMMIT"} = $Job->{script_version};
418 $ENV{"CRUNCH_SRC"} = "$ENV{CRUNCH_TMP}/src";
422 my $treeish = $Job->{'script_version'};
424 # If we're running under crunch-dispatch, it will have pulled the
425 # appropriate source tree into its own repository, and given us that
426 # repo's path as $git_dir. If we're running a "local" job, and a
427 # script_version was specified, it's up to the user to provide the
428 # full path to a local repository in Job->{repository}.
430 # TODO: Accept URLs too, not just local paths. Use git-ls-remote and
431 # git-archive --remote where appropriate.
433 # TODO: Accept a locally-hosted Arvados repository by name or
434 # UUID. Use arvados.v1.repositories.list or .get to figure out the
435 # appropriate fetch-url.
436 my $repo = $git_dir || $ENV{'CRUNCH_DEFAULT_GIT_DIR'} || $Job->{'repository'};
438 $ENV{"CRUNCH_SRC_URL"} = $repo;
440 if (-d "$repo/.git") {
441 # We were given a working directory, but we are only interested in
443 $repo = "$repo/.git";
446 # If this looks like a subversion r#, look for it in git-svn commit messages
448 if ($treeish =~ m{^\d{1,4}$}) {
449 my $gitlog = `git --git-dir=\Q$repo\E log --pretty="format:%H" --grep="git-svn-id:.*\@"\Q$treeish\E" " master`;
451 if ($gitlog =~ /^[a-f0-9]{40}$/) {
453 Log (undef, "Using commit $commit for script_version $treeish");
457 # If that didn't work, try asking git to look it up as a tree-ish.
459 if (!defined $commit) {
460 my $found = `git --git-dir=\Q$repo\E rev-list -1 ''\Q$treeish\E`;
462 if ($found =~ /^[0-9a-f]{40}$/s) {
464 if ($commit ne $treeish) {
465 # Make sure we record the real commit id in the database,
466 # frozentokey, logs, etc. -- instead of an abbreviation or a
467 # branch name which can become ambiguous or point to a
468 # different commit in the future.
469 $ENV{"CRUNCH_SRC_COMMIT"} = $commit;
470 Log (undef, "Using commit $commit for tree-ish $treeish");
471 if ($commit ne $treeish) {
472 $Job->{'script_version'} = $commit;
474 $Job->update_attributes('script_version' => $commit) or
475 croak("Error while updating job");
481 if (defined $commit) {
482 $ENV{"CRUNCH_SRC_COMMIT"} = $commit;
483 @execargs = ("sh", "-c",
484 "mkdir -p $ENV{CRUNCH_INSTALL} && cd $ENV{CRUNCH_TMP} && perl -");
485 $git_archive = `git --git-dir=\Q$repo\E archive ''\Q$commit\E`;
488 croak ("could not figure out commit id for $treeish");
491 # Note: this section is almost certainly unnecessary if we're
492 # running tasks in docker containers.
493 my $installpid = fork();
494 if ($installpid == 0)
496 srun (\@srunargs, \@execargs, {}, $build_script . $git_archive);
501 last if $installpid == waitpid (-1, WNOHANG);
502 freeze_if_want_freeze ($installpid);
503 select (undef, undef, undef, 0.1);
505 Log (undef, "Install exited $?");
510 # Grab our lock again (we might have deleted and re-created CRUNCH_TMP above)
511 must_lock_now("$ENV{CRUNCH_TMP}/.lock", "a job is already running here.");
514 # If this job requires a Docker image, install that.
515 my $docker_bin = "/usr/bin/docker.io";
516 my ($docker_locator, $docker_stream, $docker_hash);
517 if ($docker_locator = $Job->{docker_image_locator}) {
518 ($docker_stream, $docker_hash) = find_docker_image($docker_locator);
521 croak("No Docker image hash found from locator $docker_locator");
523 $docker_stream =~ s/^\.//;
524 my $docker_install_script = qq{
525 if ! $docker_bin images -q --no-trunc | grep -qxF \Q$docker_hash\E; then
526 arv-get \Q$docker_locator$docker_stream/$docker_hash.tar\E | $docker_bin load
529 my $docker_pid = fork();
530 if ($docker_pid == 0)
532 srun (["srun", "--nodelist=" . join(',', @node)],
533 ["/bin/sh", "-ec", $docker_install_script]);
538 last if $docker_pid == waitpid (-1, WNOHANG);
539 freeze_if_want_freeze ($docker_pid);
540 select (undef, undef, undef, 0.1);
544 croak("Installing Docker image from $docker_locator returned exit code $?");
548 foreach (qw (script script_version script_parameters runtime_constraints))
552 (ref($Job->{$_}) ? JSON::encode_json($Job->{$_}) : $Job->{$_}));
554 foreach (split (/\n/, $Job->{knobs}))
556 Log (undef, "knob " . $_);
561 $main::success = undef;
567 my $thisround_succeeded = 0;
568 my $thisround_failed = 0;
569 my $thisround_failed_multiple = 0;
571 @jobstep_todo = sort { $jobstep[$a]->{level} <=> $jobstep[$b]->{level}
572 or $a <=> $b } @jobstep_todo;
573 my $level = $jobstep[$jobstep_todo[0]]->{level};
574 Log (undef, "start level $level");
579 my @freeslot = (0..$#slot);
582 my $progress_is_dirty = 1;
583 my $progress_stats_updated = 0;
585 update_progress_stats();
590 for (my $todo_ptr = 0; $todo_ptr <= $#jobstep_todo; $todo_ptr ++)
592 my $id = $jobstep_todo[$todo_ptr];
593 my $Jobstep = $jobstep[$id];
594 if ($Jobstep->{level} != $level)
599 pipe $reader{$id}, "writer" or croak ($!);
600 my $flags = fcntl ($reader{$id}, F_GETFL, 0) or croak ($!);
601 fcntl ($reader{$id}, F_SETFL, $flags | O_NONBLOCK) or croak ($!);
603 my $childslot = $freeslot[0];
604 my $childnode = $slot[$childslot]->{node};
605 my $childslotname = join (".",
606 $slot[$childslot]->{node}->{name},
607 $slot[$childslot]->{cpu});
608 my $childpid = fork();
611 $SIG{'INT'} = 'DEFAULT';
612 $SIG{'QUIT'} = 'DEFAULT';
613 $SIG{'TERM'} = 'DEFAULT';
615 foreach (values (%reader))
619 fcntl ("writer", F_SETFL, 0) or croak ($!); # no close-on-exec
620 open(STDOUT,">&writer");
621 open(STDERR,">&writer");
626 delete $ENV{"GNUPGHOME"};
627 $ENV{"TASK_UUID"} = $Jobstep->{'arvados_task'}->{'uuid'};
628 $ENV{"TASK_QSEQUENCE"} = $id;
629 $ENV{"TASK_SEQUENCE"} = $level;
630 $ENV{"JOB_SCRIPT"} = $Job->{script};
631 while (my ($param, $value) = each %{$Job->{script_parameters}}) {
632 $param =~ tr/a-z/A-Z/;
633 $ENV{"JOB_PARAMETER_$param"} = $value;
635 $ENV{"TASK_SLOT_NODE"} = $slot[$childslot]->{node}->{name};
636 $ENV{"TASK_SLOT_NUMBER"} = $slot[$childslot]->{cpu};
637 $ENV{"TASK_WORK"} = $ENV{"JOB_WORK"}."/$id.$$";
638 $ENV{"HOME"} = $ENV{"TASK_WORK"};
639 $ENV{"TASK_KEEPMOUNT"} = $ENV{"TASK_WORK"}.".keep";
640 $ENV{"TASK_TMPDIR"} = $ENV{"TASK_WORK"}; # deprecated
641 $ENV{"CRUNCH_NODE_SLOTS"} = $slot[$childslot]->{node}->{ncpus};
642 $ENV{"PATH"} = $ENV{"CRUNCH_INSTALL"} . "/bin:" . $ENV{"PATH"};
648 "--nodelist=".$childnode->{name},
649 qw(-n1 -c1 -N1 -D), $ENV{'TMPDIR'},
650 "--job-name=$job_id.$id.$$",
652 my $build_script_to_send = "";
654 "if [ -e $ENV{TASK_WORK} ]; then rm -rf $ENV{TASK_WORK}; fi; "
655 ."mkdir -p $ENV{CRUNCH_TMP} $ENV{JOB_WORK} $ENV{TASK_WORK} $ENV{TASK_KEEPMOUNT} "
656 ."&& cd $ENV{CRUNCH_TMP} ";
659 $build_script_to_send = $build_script;
663 $command .= "&& exec arv-mount --by-id --allow-other $ENV{TASK_KEEPMOUNT} --exec ";
666 $command .= "crunchstat -cgroup-root=/sys/fs/cgroup -cgroup-parent=docker -cgroup-cid=$ENV{TASK_WORK}/docker.cid -poll=10000 ";
667 $command .= "$docker_bin run --rm=true --attach=stdout --attach=stderr --user=crunch --cidfile=$ENV{TASK_WORK}/docker.cid ";
668 # Dynamically configure the container to use the host system as its
669 # DNS server. Get the host's global addresses from the ip command,
670 # and turn them into docker --dns options using gawk.
672 q{$(ip -o address show scope global |
673 gawk 'match($4, /^([0-9\.:]+)\//, x){print "--dns", x[1]}') };
674 $command .= "--volume=\Q$ENV{CRUNCH_SRC}:/tmp/crunch-src:ro\E ";
675 $command .= "--volume=\Q$ENV{TASK_KEEPMOUNT}:/keep:ro\E ";
676 $command .= "--env=\QHOME=/home/crunch\E ";
677 while (my ($env_key, $env_val) = each %ENV)
679 if ($env_key =~ /^(ARVADOS|JOB|TASK)_/) {
680 if ($env_key eq "TASK_WORK") {
681 $command .= "--env=\QTASK_WORK=/tmp/crunch-job\E ";
683 elsif ($env_key eq "TASK_KEEPMOUNT") {
684 $command .= "--env=\QTASK_KEEPMOUNT=/keep\E ";
687 $command .= "--env=\Q$env_key=$env_val\E ";
691 $command .= "--env=\QCRUNCH_NODE_SLOTS=$ENV{CRUNCH_NODE_SLOTS}\E ";
692 $command .= "--env=\QCRUNCH_SRC=/tmp/crunch-src\E ";
693 $command .= "\Q$docker_hash\E ";
694 $command .= "stdbuf --output=0 --error=0 ";
695 $command .= "/tmp/crunch-src/crunch_scripts/" . $Job->{"script"};
698 $command .= "crunchstat -cgroup-root=/sys/fs/cgroup -poll=10000 ";
699 $command .= "stdbuf --output=0 --error=0 ";
700 $command .= "$ENV{CRUNCH_SRC}/crunch_scripts/" . $Job->{"script"};
703 my @execargs = ('bash', '-c', $command);
704 srun (\@srunargs, \@execargs, undef, $build_script_to_send);
705 # exec() failed, we assume nothing happened.
706 Log(undef, "srun() failed on build script");
710 if (!defined $childpid)
717 $proc{$childpid} = { jobstep => $id,
720 jobstepname => "$job_id.$id.$childpid",
722 croak ("assert failed: \$slot[$childslot]->{'pid'} exists") if exists $slot[$childslot]->{pid};
723 $slot[$childslot]->{pid} = $childpid;
725 Log ($id, "job_task ".$Jobstep->{'arvados_task'}->{'uuid'});
726 Log ($id, "child $childpid started on $childslotname");
727 $Jobstep->{starttime} = time;
728 $Jobstep->{node} = $childnode->{name};
729 $Jobstep->{slotindex} = $childslot;
730 delete $Jobstep->{stderr};
731 delete $Jobstep->{finishtime};
733 splice @jobstep_todo, $todo_ptr, 1;
736 $progress_is_dirty = 1;
740 (@slot > @freeslot && $todo_ptr+1 > $#jobstep_todo))
742 last THISROUND if $main::please_freeze;
743 if ($main::please_info)
745 $main::please_info = 0;
749 update_progress_stats();
756 check_refresh_wanted();
758 update_progress_stats();
759 select (undef, undef, undef, 0.1);
761 elsif (time - $progress_stats_updated >= 30)
763 update_progress_stats();
765 if (($thisround_failed_multiple >= 8 && $thisround_succeeded == 0) ||
766 ($thisround_failed_multiple >= 16 && $thisround_failed_multiple > $thisround_succeeded))
768 my $message = "Repeated failure rate too high ($thisround_failed_multiple/"
769 .($thisround_failed+$thisround_succeeded)
770 .") -- giving up on this round";
771 Log (undef, $message);
775 # move slots from freeslot to holdslot (or back to freeslot) if necessary
776 for (my $i=$#freeslot; $i>=0; $i--) {
777 if ($slot[$freeslot[$i]]->{node}->{hold_until} > scalar time) {
778 push @holdslot, (splice @freeslot, $i, 1);
781 for (my $i=$#holdslot; $i>=0; $i--) {
782 if ($slot[$holdslot[$i]]->{node}->{hold_until} <= scalar time) {
783 push @freeslot, (splice @holdslot, $i, 1);
787 # give up if no nodes are succeeding
788 if (!grep { $_->{node}->{losing_streak} == 0 &&
789 $_->{node}->{hold_count} < 4 } @slot) {
790 my $message = "Every node has failed -- giving up on this round";
791 Log (undef, $message);
798 push @freeslot, splice @holdslot;
799 map { $slot[$freeslot[$_]]->{node}->{losing_streak} = 0 } (0..$#freeslot);
802 Log (undef, "wait for last ".(scalar keys %proc)." children to finish");
805 if ($main::please_continue) {
806 $main::please_continue = 0;
809 $main::please_info = 0, freeze(), collate_output(), save_meta(1) if $main::please_info;
813 check_refresh_wanted();
815 update_progress_stats();
816 select (undef, undef, undef, 0.1);
817 killem (keys %proc) if $main::please_freeze;
821 update_progress_stats();
822 freeze_if_want_freeze();
825 if (!defined $main::success)
828 $thisround_succeeded == 0 &&
829 ($thisround_failed == 0 || $thisround_failed > 4))
831 my $message = "stop because $thisround_failed tasks failed and none succeeded";
832 Log (undef, $message);
841 goto ONELEVEL if !defined $main::success;
844 release_allocation();
846 my $collated_output = &collate_output();
849 $Job->update_attributes('running' => 0,
850 'success' => $collated_output && $main::success,
851 'finished_at' => scalar gmtime)
854 if (!$collated_output) {
855 Log(undef, "output undef");
859 open(my $orig_manifest, '-|', 'arv-get', $collated_output)
860 or die "failed to get collated manifest: $!";
861 my $orig_manifest_text = '';
862 while (my $manifest_line = <$orig_manifest>) {
863 $orig_manifest_text .= $manifest_line;
865 my $output = $arv->{'collections'}->{'create'}->execute('collection' => {
866 'manifest_text' => $orig_manifest_text,
868 Log(undef, "output uuid " . $output->{uuid});
869 Log(undef, "output hash " . $output->{portable_data_hash});
870 $Job->update_attributes('output' => $output->{portable_data_hash}) if $job_has_uuid;
873 Log (undef, "Failed to register output manifest: $@");
877 Log (undef, "finish");
880 exit ($Job->{'success'} ? 1 : 0);
884 sub update_progress_stats
886 $progress_stats_updated = time;
887 return if !$progress_is_dirty;
888 my ($todo, $done, $running) = (scalar @jobstep_todo,
889 scalar @jobstep_done,
890 scalar @slot - scalar @freeslot - scalar @holdslot);
891 $Job->{'tasks_summary'} ||= {};
892 $Job->{'tasks_summary'}->{'todo'} = $todo;
893 $Job->{'tasks_summary'}->{'done'} = $done;
894 $Job->{'tasks_summary'}->{'running'} = $running;
896 $Job->update_attributes('tasks_summary' => $Job->{'tasks_summary'});
898 Log (undef, "status: $done done, $running running, $todo todo");
899 $progress_is_dirty = 0;
906 my $pid = waitpid (-1, WNOHANG);
907 return 0 if $pid <= 0;
909 my $whatslot = ($slot[$proc{$pid}->{slot}]->{node}->{name}
911 . $slot[$proc{$pid}->{slot}]->{cpu});
912 my $jobstepid = $proc{$pid}->{jobstep};
913 my $elapsed = time - $proc{$pid}->{time};
914 my $Jobstep = $jobstep[$jobstepid];
916 my $childstatus = $?;
917 my $exitvalue = $childstatus >> 8;
918 my $exitinfo = sprintf("exit %d signal %d%s",
921 ($childstatus & 128 ? ' core dump' : ''));
922 $Jobstep->{'arvados_task'}->reload;
923 my $task_success = $Jobstep->{'arvados_task'}->{success};
925 Log ($jobstepid, "child $pid on $whatslot $exitinfo success=$task_success");
927 if (!defined $task_success) {
928 # task did not indicate one way or the other --> fail
929 $Jobstep->{'arvados_task'}->{success} = 0;
930 $Jobstep->{'arvados_task'}->save;
937 $temporary_fail ||= $Jobstep->{node_fail};
938 $temporary_fail ||= ($exitvalue == 111);
941 ++$thisround_failed_multiple if $Jobstep->{'failures'} >= 1;
943 # Check for signs of a failed or misconfigured node
944 if (++$slot[$proc{$pid}->{slot}]->{node}->{losing_streak} >=
945 2+$slot[$proc{$pid}->{slot}]->{node}->{ncpus}) {
946 # Don't count this against jobstep failure thresholds if this
947 # node is already suspected faulty and srun exited quickly
948 if ($slot[$proc{$pid}->{slot}]->{node}->{hold_until} &&
950 Log ($jobstepid, "blaming failure on suspect node " .
951 $slot[$proc{$pid}->{slot}]->{node}->{name});
952 $temporary_fail ||= 1;
954 ban_node_by_slot($proc{$pid}->{slot});
957 Log ($jobstepid, sprintf('failure (#%d, %s) after %d seconds',
958 ++$Jobstep->{'failures'},
959 $temporary_fail ? 'temporary ' : 'permanent',
962 if (!$temporary_fail || $Jobstep->{'failures'} >= 3) {
963 # Give up on this task, and the whole job
965 $main::please_freeze = 1;
968 # Put this task back on the todo queue
969 push @jobstep_todo, $jobstepid;
971 $Job->{'tasks_summary'}->{'failed'}++;
975 ++$thisround_succeeded;
976 $slot[$proc{$pid}->{slot}]->{node}->{losing_streak} = 0;
977 $slot[$proc{$pid}->{slot}]->{node}->{hold_until} = 0;
978 push @jobstep_done, $jobstepid;
979 Log ($jobstepid, "success in $elapsed seconds");
981 $Jobstep->{exitcode} = $childstatus;
982 $Jobstep->{finishtime} = time;
983 $Jobstep->{'arvados_task'}->{started_at} = strftime "Y%-%m-%dT%H:%M:%SZ", gmtime($Jobstep->{starttime});
984 $Jobstep->{'arvados_task'}->{finished_at} = strftime "Y%-%m-%dT%H:%M:%SZ", gmtime($Jobstep->{finishtime});
985 $Jobstep->{'arvados_task'}->save;
986 process_stderr ($jobstepid, $task_success);
987 Log ($jobstepid, "output " . $Jobstep->{'arvados_task'}->{output});
989 close $reader{$jobstepid};
990 delete $reader{$jobstepid};
991 delete $slot[$proc{$pid}->{slot}]->{pid};
992 push @freeslot, $proc{$pid}->{slot};
997 my $newtask_list = [];
1000 $newtask_results = $arv->{'job_tasks'}->{'list'}->execute(
1002 'created_by_job_task_uuid' => $Jobstep->{'arvados_task'}->{uuid}
1004 'order' => 'qsequence',
1005 'offset' => scalar(@$newtask_list),
1007 push(@$newtask_list, @{$newtask_results->{items}});
1008 } while (@{$newtask_results->{items}});
1009 foreach my $arvados_task (@$newtask_list) {
1011 'level' => $arvados_task->{'sequence'},
1013 'arvados_task' => $arvados_task
1015 push @jobstep, $jobstep;
1016 push @jobstep_todo, $#jobstep;
1020 $progress_is_dirty = 1;
1024 sub check_refresh_wanted
1026 my @stat = stat $ENV{"CRUNCH_REFRESH_TRIGGER"};
1027 if (@stat && $stat[9] > $latest_refresh) {
1028 $latest_refresh = scalar time;
1029 if ($job_has_uuid) {
1030 my $Job2 = $arv->{'jobs'}->{'get'}->execute('uuid' => $jobspec);
1031 for my $attr ('cancelled_at',
1032 'cancelled_by_user_uuid',
1033 'cancelled_by_client_uuid') {
1034 $Job->{$attr} = $Job2->{$attr};
1036 if ($Job->{'cancelled_at'}) {
1037 Log (undef, "Job cancelled at " . $Job->{cancelled_at} .
1038 " by user " . $Job->{cancelled_by_user_uuid});
1040 $main::please_freeze = 1;
1048 # return if the kill list was checked <4 seconds ago
1049 if (defined $squeue_kill_checked && $squeue_kill_checked > time - 4)
1053 $squeue_kill_checked = time;
1055 # use killem() on procs whose killtime is reached
1058 if (exists $proc{$_}->{killtime}
1059 && $proc{$_}->{killtime} <= time)
1065 # return if the squeue was checked <60 seconds ago
1066 if (defined $squeue_checked && $squeue_checked > time - 60)
1070 $squeue_checked = time;
1074 # here is an opportunity to check for mysterious problems with local procs
1078 # get a list of steps still running
1079 my @squeue = `squeue -s -h -o '%i %j' && echo ok`;
1081 if ($squeue[-1] ne "ok")
1087 # which of my jobsteps are running, according to squeue?
1091 if (/^(\d+)\.(\d+) (\S+)/)
1093 if ($1 eq $ENV{SLURM_JOBID})
1100 # which of my active child procs (>60s old) were not mentioned by squeue?
1101 foreach (keys %proc)
1103 if ($proc{$_}->{time} < time - 60
1104 && !exists $ok{$proc{$_}->{jobstepname}}
1105 && !exists $proc{$_}->{killtime})
1107 # kill this proc if it hasn't exited in 30 seconds
1108 $proc{$_}->{killtime} = time + 30;
1114 sub release_allocation
1118 Log (undef, "release job allocation");
1119 system "scancel $ENV{SLURM_JOBID}";
1127 foreach my $job (keys %reader)
1130 while (0 < sysread ($reader{$job}, $buf, 8192))
1132 print STDERR $buf if $ENV{CRUNCH_DEBUG};
1133 $jobstep[$job]->{stderr} .= $buf;
1134 preprocess_stderr ($job);
1135 if (length ($jobstep[$job]->{stderr}) > 16384)
1137 substr ($jobstep[$job]->{stderr}, 0, 8192) = "";
1146 sub preprocess_stderr
1150 while ($jobstep[$job]->{stderr} =~ /^(.*?)\n/) {
1152 substr $jobstep[$job]->{stderr}, 0, 1+length($line), "";
1153 Log ($job, "stderr $line");
1154 if ($line =~ /srun: error: (SLURM job $ENV{SLURM_JOB_ID} has expired|Unable to confirm allocation for job $ENV{SLURM_JOB_ID})/) {
1156 $main::please_freeze = 1;
1158 elsif ($line =~ /srun: error: (Node failure on|Unable to create job step) /) {
1159 $jobstep[$job]->{node_fail} = 1;
1160 ban_node_by_slot($jobstep[$job]->{slotindex});
1169 my $task_success = shift;
1170 preprocess_stderr ($job);
1173 Log ($job, "stderr $_");
1174 } split ("\n", $jobstep[$job]->{stderr});
1180 my ($keep, $child_out, $output_block);
1182 my $cmd = "arv-get \Q$hash\E";
1183 open($keep, '-|', $cmd) or die "fetch_block: $cmd: $!";
1187 my $bytes = sysread($keep, $buf, 1024 * 1024);
1188 if (!defined $bytes) {
1189 die "reading from arv-get: $!";
1190 } elsif ($bytes == 0) {
1191 # sysread returns 0 at the end of the pipe.
1194 # some bytes were read into buf.
1195 $output_block .= $buf;
1199 return $output_block;
1204 Log (undef, "collate");
1206 my ($child_out, $child_in);
1207 my $pid = open2($child_out, $child_in, 'arv-put', '--raw');
1211 next if (!exists $_->{'arvados_task'}->{'output'} ||
1212 !$_->{'arvados_task'}->{'success'});
1213 my $output = $_->{'arvados_task'}->{output};
1214 if ($output !~ /^[0-9a-f]{32}(\+\S+)*$/)
1216 $output_in_keep ||= $output =~ / [0-9a-f]{32}\S*\+K/;
1217 print $child_in $output;
1219 elsif (@jobstep == 1)
1221 $joboutput = $output;
1224 elsif (defined (my $outblock = fetch_block ($output)))
1226 $output_in_keep ||= $outblock =~ / [0-9a-f]{32}\S*\+K/;
1227 print $child_in $outblock;
1231 Log (undef, "XXX fetch_block($output) failed XXX");
1237 if (!defined $joboutput) {
1238 my $s = IO::Select->new($child_out);
1239 if ($s->can_read(120)) {
1240 sysread($child_out, $joboutput, 64 * 1024 * 1024);
1243 Log (undef, "timed out reading from 'arv-put'");
1256 my $sig = 2; # SIGINT first
1257 if (exists $proc{$_}->{"sent_$sig"} &&
1258 time - $proc{$_}->{"sent_$sig"} > 4)
1260 $sig = 15; # SIGTERM if SIGINT doesn't work
1262 if (exists $proc{$_}->{"sent_$sig"} &&
1263 time - $proc{$_}->{"sent_$sig"} > 4)
1265 $sig = 9; # SIGKILL if SIGTERM doesn't work
1267 if (!exists $proc{$_}->{"sent_$sig"})
1269 Log ($proc{$_}->{jobstep}, "sending 2x signal $sig to pid $_");
1271 select (undef, undef, undef, 0.1);
1274 kill $sig, $_; # srun wants two SIGINT to really interrupt
1276 $proc{$_}->{"sent_$sig"} = time;
1277 $proc{$_}->{"killedafter"} = time - $proc{$_}->{"time"};
1287 vec($bits,fileno($_),1) = 1;
1293 sub Log # ($jobstep_id, $logmessage)
1295 if ($_[1] =~ /\n/) {
1296 for my $line (split (/\n/, $_[1])) {
1301 my $fh = select STDERR; $|=1; select $fh;
1302 my $message = sprintf ("%s %d %s %s", $job_id, $$, @_);
1303 $message =~ s{([^ -\176])}{"\\" . sprintf ("%03o", ord($1))}ge;
1306 if ($local_logfile || -t STDERR) {
1307 my @gmtime = gmtime;
1308 $datetime = sprintf ("%04d-%02d-%02d_%02d:%02d:%02d",
1309 $gmtime[5]+1900, $gmtime[4]+1, @gmtime[3,2,1,0]);
1311 print STDERR ((-t STDERR) ? ($datetime." ".$message) : $message);
1313 if ($local_logfile) {
1314 print $local_logfile $datetime . " " . $message;
1321 my ($package, $file, $line) = caller;
1322 my $message = "@_ at $file line $line\n";
1323 Log (undef, $message);
1324 freeze() if @jobstep_todo;
1325 collate_output() if @jobstep_todo;
1327 save_meta() if $local_logfile;
1334 return if !$job_has_uuid;
1335 $Job->update_attributes('running' => 0,
1337 'finished_at' => scalar gmtime);
1343 my $justcheckpoint = shift; # false if this will be the last meta saved
1344 return if $justcheckpoint; # checkpointing is not relevant post-Warehouse.pm
1346 $local_logfile->flush;
1347 my $cmd = "arv-put --portable-data-hash --filename ''\Q$keep_logfile\E "
1348 . quotemeta($local_logfile->filename);
1349 my $loglocator = `$cmd`;
1350 die "system $cmd failed: $?" if $?;
1353 $local_logfile = undef; # the temp file is automatically deleted
1354 Log (undef, "log manifest is $loglocator");
1355 $Job->{'log'} = $loglocator;
1356 $Job->update_attributes('log', $loglocator) if $job_has_uuid;
1360 sub freeze_if_want_freeze
1362 if ($main::please_freeze)
1364 release_allocation();
1367 # kill some srun procs before freeze+stop
1368 map { $proc{$_} = {} } @_;
1371 killem (keys %proc);
1372 select (undef, undef, undef, 0.1);
1374 while (($died = waitpid (-1, WNOHANG)) > 0)
1376 delete $proc{$died};
1391 Log (undef, "Freeze not implemented");
1398 croak ("Thaw not implemented");
1414 $s =~ s{\\(.)}{$1 eq "n" ? "\n" : $1}ge;
1421 my $srunargs = shift;
1422 my $execargs = shift;
1423 my $opts = shift || {};
1425 my $args = $have_slurm ? [@$srunargs, @$execargs] : $execargs;
1426 print STDERR (join (" ",
1427 map { / / ? "'$_'" : $_ }
1430 if $ENV{CRUNCH_DEBUG};
1432 if (defined $stdin) {
1433 my $child = open STDIN, "-|";
1434 defined $child or die "no fork: $!";
1436 print $stdin or die $!;
1437 close STDOUT or die $!;
1442 return system (@$args) if $opts->{fork};
1445 warn "ENV size is ".length(join(" ",%ENV));
1446 die "exec failed: $!: @$args";
1450 sub ban_node_by_slot {
1451 # Don't start any new jobsteps on this node for 60 seconds
1453 $slot[$slotid]->{node}->{hold_until} = 60 + scalar time;
1454 $slot[$slotid]->{node}->{hold_count}++;
1455 Log (undef, "backing off node " . $slot[$slotid]->{node}->{name} . " for 60 seconds");
1460 my ($lockfile, $error_message) = @_;
1461 open L, ">", $lockfile or croak("$lockfile: $!");
1462 if (!flock L, LOCK_EX|LOCK_NB) {
1463 croak("Can't lock $lockfile: $error_message\n");
1467 sub find_docker_image {
1468 # Given a Keep locator, check to see if it contains a Docker image.
1469 # If so, return its stream name and Docker hash.
1470 # If not, return undef for both values.
1471 my $locator = shift;
1472 my ($streamname, $filename);
1473 if (my $image = $arv->{collections}->{get}->execute(uuid => $locator)) {
1474 foreach my $line (split(/\n/, $image->{manifest_text})) {
1475 my @tokens = split(/\s+/, $line);
1477 $streamname = shift(@tokens);
1478 foreach my $filedata (grep(/^\d+:\d+:/, @tokens)) {
1479 if (defined($filename)) {
1480 return (undef, undef); # More than one file in the Collection.
1482 $filename = (split(/:/, $filedata, 3))[2];
1487 if (defined($filename) and ($filename =~ /^([0-9A-Fa-f]{64})\.tar$/)) {
1488 return ($streamname, $1);
1490 return (undef, undef);
1497 # checkout-and-build
1500 use File::Path qw( make_path );
1502 my $destdir = $ENV{"CRUNCH_SRC"};
1503 my $commit = $ENV{"CRUNCH_SRC_COMMIT"};
1504 my $repo = $ENV{"CRUNCH_SRC_URL"};
1505 my $task_work = $ENV{"TASK_WORK"};
1507 for my $dir ($destdir, $task_work) {
1510 -e $dir or die "Failed to create temporary directory ($dir): $!";
1514 open L, ">", "$destdir.lock" or die "$destdir.lock: $!";
1516 if (readlink ("$destdir.commit") eq $commit && -d $destdir) {
1519 die "Cannot exec `@ARGV`: $!";
1525 unlink "$destdir.commit";
1526 open STDOUT, ">", "$destdir.log";
1527 open STDERR, ">&STDOUT";
1530 my @git_archive_data = <DATA>;
1531 if (@git_archive_data) {
1532 open TARX, "|-", "tar", "-C", $destdir, "-xf", "-";
1533 print TARX @git_archive_data;
1535 die "'tar -C $destdir -xf -' exited $?: $!";
1540 chomp ($pwd = `pwd`);
1541 my $install_dir = $ENV{"CRUNCH_INSTALL"} || "$pwd/opt";
1544 for my $src_path ("$destdir/arvados/sdk/python") {
1546 shell_or_die ("virtualenv", $install_dir);
1547 shell_or_die ("cd $src_path && ./build.sh && $install_dir/bin/python setup.py install");
1551 if (-e "$destdir/crunch_scripts/install") {
1552 shell_or_die ("$destdir/crunch_scripts/install", $install_dir);
1553 } elsif (!-e "./install.sh" && -e "./tests/autotests.sh") {
1555 shell_or_die ("./tests/autotests.sh", $install_dir);
1556 } elsif (-e "./install.sh") {
1557 shell_or_die ("./install.sh", $install_dir);
1561 unlink "$destdir.commit.new";
1562 symlink ($commit, "$destdir.commit.new") or die "$destdir.commit.new: $!";
1563 rename ("$destdir.commit.new", "$destdir.commit") or die "$destdir.commit: $!";
1570 die "Cannot exec `@ARGV`: $!";
1577 if ($ENV{"DEBUG"}) {
1578 print STDERR "@_\n";
1581 or die "@_ failed: $! exit 0x".sprintf("%x",$?);