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 .= "crunchstat -cgroup-parent=/sys/fs/cgroup/lxc -cgroup-cid=$ENV{TASK_WORK}/docker.cid -poll=1000 ";
645 $command .= "$docker_bin run -i -a stdin -a stdout -a stderr -cidfile=$ENV{TASK_WORK}/docker.cid ";
646 # Dynamically configure the container to use the host system as its
647 # DNS server. Get the host's global addresses from the ip command,
648 # and turn them into docker --dns options using gawk.
650 q{$(ip -o address show scope global |
651 gawk 'match($4, /^([0-9\.:]+)\//, x){print "--dns", x[1]}') };
652 foreach my $env_key (qw(CRUNCH_SRC CRUNCH_TMP TASK_KEEPMOUNT))
654 $command .= "-v \Q$ENV{$env_key}:$ENV{$env_key}:rw\E ";
656 while (my ($env_key, $env_val) = each %ENV)
658 if ($env_key =~ /^(JOB|TASK)_/) {
659 $command .= "-e \Q$env_key=$env_val\E ";
662 $command .= "\Q$docker_image\E ";
664 $command .= "crunchstat -cgroup-path=/sys/fs/cgroup "
666 $command .= "$ENV{CRUNCH_SRC}/crunch_scripts/" . $Job->{"script"};
667 my @execargs = ('bash', '-c', $command);
668 srun (\@srunargs, \@execargs, undef, $build_script_to_send);
672 if (!defined $childpid)
679 $proc{$childpid} = { jobstep => $id,
682 jobstepname => "$job_id.$id.$childpid",
684 croak ("assert failed: \$slot[$childslot]->{'pid'} exists") if exists $slot[$childslot]->{pid};
685 $slot[$childslot]->{pid} = $childpid;
687 Log ($id, "job_task ".$Jobstep->{'arvados_task'}->{'uuid'});
688 Log ($id, "child $childpid started on $childslotname");
689 $Jobstep->{starttime} = time;
690 $Jobstep->{node} = $childnode->{name};
691 $Jobstep->{slotindex} = $childslot;
692 delete $Jobstep->{stderr};
693 delete $Jobstep->{finishtime};
695 splice @jobstep_todo, $todo_ptr, 1;
698 $progress_is_dirty = 1;
702 (@slot > @freeslot && $todo_ptr+1 > $#jobstep_todo))
704 last THISROUND if $main::please_freeze;
705 if ($main::please_info)
707 $main::please_info = 0;
711 update_progress_stats();
718 check_refresh_wanted();
720 update_progress_stats();
721 select (undef, undef, undef, 0.1);
723 elsif (time - $progress_stats_updated >= 30)
725 update_progress_stats();
727 if (($thisround_failed_multiple >= 8 && $thisround_succeeded == 0) ||
728 ($thisround_failed_multiple >= 16 && $thisround_failed_multiple > $thisround_succeeded))
730 my $message = "Repeated failure rate too high ($thisround_failed_multiple/"
731 .($thisround_failed+$thisround_succeeded)
732 .") -- giving up on this round";
733 Log (undef, $message);
737 # move slots from freeslot to holdslot (or back to freeslot) if necessary
738 for (my $i=$#freeslot; $i>=0; $i--) {
739 if ($slot[$freeslot[$i]]->{node}->{hold_until} > scalar time) {
740 push @holdslot, (splice @freeslot, $i, 1);
743 for (my $i=$#holdslot; $i>=0; $i--) {
744 if ($slot[$holdslot[$i]]->{node}->{hold_until} <= scalar time) {
745 push @freeslot, (splice @holdslot, $i, 1);
749 # give up if no nodes are succeeding
750 if (!grep { $_->{node}->{losing_streak} == 0 &&
751 $_->{node}->{hold_count} < 4 } @slot) {
752 my $message = "Every node has failed -- giving up on this round";
753 Log (undef, $message);
760 push @freeslot, splice @holdslot;
761 map { $slot[$freeslot[$_]]->{node}->{losing_streak} = 0 } (0..$#freeslot);
764 Log (undef, "wait for last ".(scalar keys %proc)." children to finish");
767 if ($main::please_continue) {
768 $main::please_continue = 0;
771 $main::please_info = 0, freeze(), collate_output(), save_meta(1) if $main::please_info;
775 check_refresh_wanted();
777 update_progress_stats();
778 select (undef, undef, undef, 0.1);
779 killem (keys %proc) if $main::please_freeze;
783 update_progress_stats();
784 freeze_if_want_freeze();
787 if (!defined $main::success)
790 $thisround_succeeded == 0 &&
791 ($thisround_failed == 0 || $thisround_failed > 4))
793 my $message = "stop because $thisround_failed tasks failed and none succeeded";
794 Log (undef, $message);
803 goto ONELEVEL if !defined $main::success;
806 release_allocation();
808 my $collated_output = &collate_output();
811 $Job->update_attributes('running' => 0,
812 'success' => $collated_output && $main::success,
813 'finished_at' => scalar gmtime)
816 if ($collated_output)
819 open(my $orig_manifest, '-|', 'arv', 'keep', 'get', $collated_output)
820 or die "failed to get collated manifest: $!";
821 # Read the original manifest, and strip permission hints from it,
822 # so we can put the result in a Collection.
823 my @manifest_lines = ();
824 while (my $manifest_line = <$orig_manifest>) {
825 my @words = split(/ /, $manifest_line, -1);
826 foreach my $ii (0..$#words) {
827 if ($words[$ii] =~ /^[0-9a-f]{32}\+/) {
828 $words[$ii] =~ s/\+A[0-9a-f]{40}@[0-9a-f]{8}\b//;
831 push(@manifest_lines, join(" ", @words));
833 my $manifest_text = join("", @manifest_lines);
834 my $output = $arv->{'collections'}->{'create'}->execute('collection' => {
835 'uuid' => md5_hex($manifest_text),
836 'manifest_text' => $manifest_text,
838 $Job->update_attributes('output' => $output->{uuid});
839 if ($Job->{'output_is_persistent'}) {
840 $arv->{'links'}->{'create'}->execute('link' => {
841 'tail_kind' => 'arvados#user',
842 'tail_uuid' => $User->{'uuid'},
843 'head_kind' => 'arvados#collection',
844 'head_uuid' => $Job->{'output'},
845 'link_class' => 'resources',
851 Log (undef, "Failed to register output manifest: $@");
855 Log (undef, "finish");
862 sub update_progress_stats
864 $progress_stats_updated = time;
865 return if !$progress_is_dirty;
866 my ($todo, $done, $running) = (scalar @jobstep_todo,
867 scalar @jobstep_done,
868 scalar @slot - scalar @freeslot - scalar @holdslot);
869 $Job->{'tasks_summary'} ||= {};
870 $Job->{'tasks_summary'}->{'todo'} = $todo;
871 $Job->{'tasks_summary'}->{'done'} = $done;
872 $Job->{'tasks_summary'}->{'running'} = $running;
874 $Job->update_attributes('tasks_summary' => $Job->{'tasks_summary'});
876 Log (undef, "status: $done done, $running running, $todo todo");
877 $progress_is_dirty = 0;
884 my $pid = waitpid (-1, WNOHANG);
885 return 0 if $pid <= 0;
887 my $whatslot = ($slot[$proc{$pid}->{slot}]->{node}->{name}
889 . $slot[$proc{$pid}->{slot}]->{cpu});
890 my $jobstepid = $proc{$pid}->{jobstep};
891 my $elapsed = time - $proc{$pid}->{time};
892 my $Jobstep = $jobstep[$jobstepid];
894 my $childstatus = $?;
895 my $exitvalue = $childstatus >> 8;
896 my $exitinfo = sprintf("exit %d signal %d%s",
899 ($childstatus & 128 ? ' core dump' : ''));
900 $Jobstep->{'arvados_task'}->reload;
901 my $task_success = $Jobstep->{'arvados_task'}->{success};
903 Log ($jobstepid, "child $pid on $whatslot $exitinfo success=$task_success");
905 if (!defined $task_success) {
906 # task did not indicate one way or the other --> fail
907 $Jobstep->{'arvados_task'}->{success} = 0;
908 $Jobstep->{'arvados_task'}->save;
915 $temporary_fail ||= $Jobstep->{node_fail};
916 $temporary_fail ||= ($exitvalue == 111);
919 ++$thisround_failed_multiple if $Jobstep->{'failures'} >= 1;
921 # Check for signs of a failed or misconfigured node
922 if (++$slot[$proc{$pid}->{slot}]->{node}->{losing_streak} >=
923 2+$slot[$proc{$pid}->{slot}]->{node}->{ncpus}) {
924 # Don't count this against jobstep failure thresholds if this
925 # node is already suspected faulty and srun exited quickly
926 if ($slot[$proc{$pid}->{slot}]->{node}->{hold_until} &&
928 Log ($jobstepid, "blaming failure on suspect node " .
929 $slot[$proc{$pid}->{slot}]->{node}->{name});
930 $temporary_fail ||= 1;
932 ban_node_by_slot($proc{$pid}->{slot});
935 Log ($jobstepid, sprintf('failure (#%d, %s) after %d seconds',
936 ++$Jobstep->{'failures'},
937 $temporary_fail ? 'temporary ' : 'permanent',
940 if (!$temporary_fail || $Jobstep->{'failures'} >= 3) {
941 # Give up on this task, and the whole job
943 $main::please_freeze = 1;
946 # Put this task back on the todo queue
947 push @jobstep_todo, $jobstepid;
949 $Job->{'tasks_summary'}->{'failed'}++;
953 ++$thisround_succeeded;
954 $slot[$proc{$pid}->{slot}]->{node}->{losing_streak} = 0;
955 $slot[$proc{$pid}->{slot}]->{node}->{hold_until} = 0;
956 push @jobstep_done, $jobstepid;
957 Log ($jobstepid, "success in $elapsed seconds");
959 $Jobstep->{exitcode} = $childstatus;
960 $Jobstep->{finishtime} = time;
961 process_stderr ($jobstepid, $task_success);
962 Log ($jobstepid, "output " . $Jobstep->{'arvados_task'}->{output});
964 close $reader{$jobstepid};
965 delete $reader{$jobstepid};
966 delete $slot[$proc{$pid}->{slot}]->{pid};
967 push @freeslot, $proc{$pid}->{slot};
971 my $newtask_list = [];
974 $newtask_results = $arv->{'job_tasks'}->{'list'}->execute(
976 'created_by_job_task_uuid' => $Jobstep->{'arvados_task'}->{uuid}
978 'order' => 'qsequence',
979 'offset' => scalar(@$newtask_list),
981 push(@$newtask_list, @{$newtask_results->{items}});
982 } while (@{$newtask_results->{items}});
983 foreach my $arvados_task (@$newtask_list) {
985 'level' => $arvados_task->{'sequence'},
987 'arvados_task' => $arvados_task
989 push @jobstep, $jobstep;
990 push @jobstep_todo, $#jobstep;
993 $progress_is_dirty = 1;
997 sub check_refresh_wanted
999 my @stat = stat $ENV{"CRUNCH_REFRESH_TRIGGER"};
1000 if (@stat && $stat[9] > $latest_refresh) {
1001 $latest_refresh = scalar time;
1002 if ($job_has_uuid) {
1003 my $Job2 = $arv->{'jobs'}->{'get'}->execute('uuid' => $jobspec);
1004 for my $attr ('cancelled_at',
1005 'cancelled_by_user_uuid',
1006 'cancelled_by_client_uuid') {
1007 $Job->{$attr} = $Job2->{$attr};
1009 if ($Job->{'cancelled_at'}) {
1010 Log (undef, "Job cancelled at " . $Job->{cancelled_at} .
1011 " by user " . $Job->{cancelled_by_user_uuid});
1013 $main::please_freeze = 1;
1021 # return if the kill list was checked <4 seconds ago
1022 if (defined $squeue_kill_checked && $squeue_kill_checked > time - 4)
1026 $squeue_kill_checked = time;
1028 # use killem() on procs whose killtime is reached
1031 if (exists $proc{$_}->{killtime}
1032 && $proc{$_}->{killtime} <= time)
1038 # return if the squeue was checked <60 seconds ago
1039 if (defined $squeue_checked && $squeue_checked > time - 60)
1043 $squeue_checked = time;
1047 # here is an opportunity to check for mysterious problems with local procs
1051 # get a list of steps still running
1052 my @squeue = `squeue -s -h -o '%i %j' && echo ok`;
1054 if ($squeue[-1] ne "ok")
1060 # which of my jobsteps are running, according to squeue?
1064 if (/^(\d+)\.(\d+) (\S+)/)
1066 if ($1 eq $ENV{SLURM_JOBID})
1073 # which of my active child procs (>60s old) were not mentioned by squeue?
1074 foreach (keys %proc)
1076 if ($proc{$_}->{time} < time - 60
1077 && !exists $ok{$proc{$_}->{jobstepname}}
1078 && !exists $proc{$_}->{killtime})
1080 # kill this proc if it hasn't exited in 30 seconds
1081 $proc{$_}->{killtime} = time + 30;
1087 sub release_allocation
1091 Log (undef, "release job allocation");
1092 system "scancel $ENV{SLURM_JOBID}";
1100 foreach my $job (keys %reader)
1103 while (0 < sysread ($reader{$job}, $buf, 8192))
1105 print STDERR $buf if $ENV{CRUNCH_DEBUG};
1106 $jobstep[$job]->{stderr} .= $buf;
1107 preprocess_stderr ($job);
1108 if (length ($jobstep[$job]->{stderr}) > 16384)
1110 substr ($jobstep[$job]->{stderr}, 0, 8192) = "";
1119 sub preprocess_stderr
1123 while ($jobstep[$job]->{stderr} =~ /^(.*?)\n/) {
1125 substr $jobstep[$job]->{stderr}, 0, 1+length($line), "";
1126 Log ($job, "stderr $line");
1127 if ($line =~ /srun: error: (SLURM job $ENV{SLURM_JOB_ID} has expired|Unable to confirm allocation for job $ENV{SLURM_JOB_ID})/) {
1129 $main::please_freeze = 1;
1131 elsif ($line =~ /srun: error: (Node failure on|Unable to create job step) /) {
1132 $jobstep[$job]->{node_fail} = 1;
1133 ban_node_by_slot($jobstep[$job]->{slotindex});
1142 my $task_success = shift;
1143 preprocess_stderr ($job);
1146 Log ($job, "stderr $_");
1147 } split ("\n", $jobstep[$job]->{stderr});
1153 my ($keep, $child_out, $output_block);
1155 my $cmd = "$arv_cli keep get \Q$hash\E";
1156 open($keep, '-|', $cmd) or die "fetch_block: $cmd: $!";
1157 sysread($keep, $output_block, 64 * 1024 * 1024);
1159 return $output_block;
1164 Log (undef, "collate");
1166 my ($child_out, $child_in);
1167 my $pid = open2($child_out, $child_in, $arv_cli, 'keep', 'put', '--raw');
1171 next if (!exists $_->{'arvados_task'}->{output} ||
1172 !$_->{'arvados_task'}->{'success'} ||
1173 $_->{'exitcode'} != 0);
1174 my $output = $_->{'arvados_task'}->{output};
1175 if ($output !~ /^[0-9a-f]{32}(\+\S+)*$/)
1177 $output_in_keep ||= $output =~ / [0-9a-f]{32}\S*\+K/;
1178 print $child_in $output;
1180 elsif (@jobstep == 1)
1182 $joboutput = $output;
1185 elsif (defined (my $outblock = fetch_block ($output)))
1187 $output_in_keep ||= $outblock =~ / [0-9a-f]{32}\S*\+K/;
1188 print $child_in $outblock;
1192 Log (undef, "XXX fetch_block($output) failed XXX");
1198 if (!defined $joboutput) {
1199 my $s = IO::Select->new($child_out);
1200 if ($s->can_read(120)) {
1201 sysread($child_out, $joboutput, 64 * 1024 * 1024);
1204 Log (undef, "timed out reading from 'arv keep put'");
1211 Log (undef, "output $joboutput");
1212 $Job->update_attributes('output' => $joboutput) if $job_has_uuid;
1216 Log (undef, "output undef");
1226 my $sig = 2; # SIGINT first
1227 if (exists $proc{$_}->{"sent_$sig"} &&
1228 time - $proc{$_}->{"sent_$sig"} > 4)
1230 $sig = 15; # SIGTERM if SIGINT doesn't work
1232 if (exists $proc{$_}->{"sent_$sig"} &&
1233 time - $proc{$_}->{"sent_$sig"} > 4)
1235 $sig = 9; # SIGKILL if SIGTERM doesn't work
1237 if (!exists $proc{$_}->{"sent_$sig"})
1239 Log ($proc{$_}->{jobstep}, "sending 2x signal $sig to pid $_");
1241 select (undef, undef, undef, 0.1);
1244 kill $sig, $_; # srun wants two SIGINT to really interrupt
1246 $proc{$_}->{"sent_$sig"} = time;
1247 $proc{$_}->{"killedafter"} = time - $proc{$_}->{"time"};
1257 vec($bits,fileno($_),1) = 1;
1263 sub Log # ($jobstep_id, $logmessage)
1265 if ($_[1] =~ /\n/) {
1266 for my $line (split (/\n/, $_[1])) {
1271 my $fh = select STDERR; $|=1; select $fh;
1272 my $message = sprintf ("%s %d %s %s", $job_id, $$, @_);
1273 $message =~ s{([^ -\176])}{"\\" . sprintf ("%03o", ord($1))}ge;
1276 if ($local_logfile || -t STDERR) {
1277 my @gmtime = gmtime;
1278 $datetime = sprintf ("%04d-%02d-%02d_%02d:%02d:%02d",
1279 $gmtime[5]+1900, $gmtime[4]+1, @gmtime[3,2,1,0]);
1281 print STDERR ((-t STDERR) ? ($datetime." ".$message) : $message);
1283 if ($local_logfile) {
1284 print $local_logfile $datetime . " " . $message;
1291 my ($package, $file, $line) = caller;
1292 my $message = "@_ at $file line $line\n";
1293 Log (undef, $message);
1294 freeze() if @jobstep_todo;
1295 collate_output() if @jobstep_todo;
1297 save_meta() if $local_logfile;
1304 return if !$job_has_uuid;
1305 $Job->update_attributes('running' => 0,
1307 'finished_at' => scalar gmtime);
1313 my $justcheckpoint = shift; # false if this will be the last meta saved
1314 return if $justcheckpoint; # checkpointing is not relevant post-Warehouse.pm
1316 $local_logfile->flush;
1317 my $cmd = "$arv_cli keep put --filename ''\Q$keep_logfile\E "
1318 . quotemeta($local_logfile->filename);
1319 my $loglocator = `$cmd`;
1320 die "system $cmd failed: $?" if $?;
1323 $local_logfile = undef; # the temp file is automatically deleted
1324 Log (undef, "log manifest is $loglocator");
1325 $Job->{'log'} = $loglocator;
1326 $Job->update_attributes('log', $loglocator) if $job_has_uuid;
1330 sub freeze_if_want_freeze
1332 if ($main::please_freeze)
1334 release_allocation();
1337 # kill some srun procs before freeze+stop
1338 map { $proc{$_} = {} } @_;
1341 killem (keys %proc);
1342 select (undef, undef, undef, 0.1);
1344 while (($died = waitpid (-1, WNOHANG)) > 0)
1346 delete $proc{$died};
1361 Log (undef, "Freeze not implemented");
1368 croak ("Thaw not implemented");
1384 $s =~ s{\\(.)}{$1 eq "n" ? "\n" : $1}ge;
1391 my $srunargs = shift;
1392 my $execargs = shift;
1393 my $opts = shift || {};
1395 my $args = $have_slurm ? [@$srunargs, @$execargs] : $execargs;
1396 print STDERR (join (" ",
1397 map { / / ? "'$_'" : $_ }
1400 if $ENV{CRUNCH_DEBUG};
1402 if (defined $stdin) {
1403 my $child = open STDIN, "-|";
1404 defined $child or die "no fork: $!";
1406 print $stdin or die $!;
1407 close STDOUT or die $!;
1412 return system (@$args) if $opts->{fork};
1415 warn "ENV size is ".length(join(" ",%ENV));
1416 die "exec failed: $!: @$args";
1420 sub ban_node_by_slot {
1421 # Don't start any new jobsteps on this node for 60 seconds
1423 $slot[$slotid]->{node}->{hold_until} = 60 + scalar time;
1424 $slot[$slotid]->{node}->{hold_count}++;
1425 Log (undef, "backing off node " . $slot[$slotid]->{node}->{name} . " for 60 seconds");
1430 my ($lockfile, $error_message) = @_;
1431 open L, ">", $lockfile or croak("$lockfile: $!");
1432 if (!flock L, LOCK_EX|LOCK_NB) {
1433 croak("Can't lock $lockfile: $error_message\n");
1440 # checkout-and-build
1444 my $destdir = $ENV{"CRUNCH_SRC"};
1445 my $commit = $ENV{"CRUNCH_SRC_COMMIT"};
1446 my $repo = $ENV{"CRUNCH_SRC_URL"};
1448 open L, ">", "$destdir.lock" or die "$destdir.lock: $!";
1450 if (readlink ("$destdir.commit") eq $commit && -d $destdir) {
1454 unlink "$destdir.commit";
1455 open STDOUT, ">", "$destdir.log";
1456 open STDERR, ">&STDOUT";
1459 my @git_archive_data = <DATA>;
1460 if (@git_archive_data) {
1461 open TARX, "|-", "tar", "-C", $destdir, "-xf", "-";
1462 print TARX @git_archive_data;
1464 die "'tar -C $destdir -xf -' exited $?: $!";
1469 chomp ($pwd = `pwd`);
1470 my $install_dir = $ENV{"CRUNCH_INSTALL"} || "$pwd/opt";
1473 for my $src_path ("$destdir/arvados/sdk/python") {
1475 shell_or_die ("virtualenv", $install_dir);
1476 shell_or_die ("cd $src_path && ./build.sh && $install_dir/bin/python setup.py install");
1480 if (-e "$destdir/crunch_scripts/install") {
1481 shell_or_die ("$destdir/crunch_scripts/install", $install_dir);
1482 } elsif (!-e "./install.sh" && -e "./tests/autotests.sh") {
1484 shell_or_die ("./tests/autotests.sh", $install_dir);
1485 } elsif (-e "./install.sh") {
1486 shell_or_die ("./install.sh", $install_dir);
1490 unlink "$destdir.commit.new";
1491 symlink ($commit, "$destdir.commit.new") or die "$destdir.commit.new: $!";
1492 rename ("$destdir.commit.new", "$destdir.commit") or die "$destdir.commit: $!";
1501 if ($ENV{"DEBUG"}) {
1502 print STDERR "@_\n";
1505 or die "@_ failed: $! exit 0x".sprintf("%x",$?);