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 --git-dir /path/to/repo/.git
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/working/tree","script":"scriptname",...}'
20 crunch-job --job '{"repository":"https://github.com/curoverse/arvados.git","script_version":"master","script":"scriptname",...}'
28 If the job is already locked, steal the lock and run it anyway.
32 Path to a .git directory (or a git URL) where the commit given in the
33 job's C<script_version> attribute is to be found. If this is I<not>
34 given, the job's C<repository> attribute will be used.
38 Arvados API authorization token to use during the course of the job.
42 Do not clear per-job/task temporary directories during initial job
43 setup. This can speed up development and debugging when running jobs
48 UUID of the job to run, or a JSON-encoded job resource without a
49 UUID. If the latter is given, a new job object will be created.
53 =head1 RUNNING JOBS LOCALLY
55 crunch-job's log messages appear on stderr along with the job tasks'
56 stderr streams. The log is saved in Keep at each checkpoint and when
59 If the job succeeds, the job's output locator is printed on stdout.
61 While the job is running, the following signals are accepted:
65 =item control-C, SIGINT, SIGQUIT
67 Save a checkpoint, terminate any job tasks that are running, and stop.
71 Save a checkpoint and continue.
75 Refresh node allocation (i.e., check whether any nodes have been added
76 or unallocated) and attributes of the Job record that should affect
77 behavior (e.g., cancel job if cancelled_at becomes non-nil).
85 use POSIX ':sys_wait_h';
86 use POSIX qw(strftime);
87 use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
91 use Digest::MD5 qw(md5_hex);
97 use File::Path qw( make_path remove_tree );
99 use constant TASK_TEMPFAIL => 111;
100 use constant EX_TEMPFAIL => 75;
101 use constant EX_RETRY_UNLOCKED => 93;
103 $ENV{"TMPDIR"} ||= "/tmp";
104 unless (defined $ENV{"CRUNCH_TMP"}) {
105 $ENV{"CRUNCH_TMP"} = $ENV{"TMPDIR"} . "/crunch-job";
106 if ($ENV{"USER"} ne "crunch" && $< != 0) {
107 # use a tmp dir unique for my uid
108 $ENV{"CRUNCH_TMP"} .= "-$<";
112 # Create the tmp directory if it does not exist
113 if ( ! -d $ENV{"CRUNCH_TMP"} ) {
114 make_path $ENV{"CRUNCH_TMP"} or die "Failed to create temporary working directory: " . $ENV{"CRUNCH_TMP"};
117 $ENV{"JOB_WORK"} = $ENV{"CRUNCH_TMP"} . "/work";
118 $ENV{"CRUNCH_INSTALL"} = "$ENV{CRUNCH_TMP}/opt";
119 $ENV{"CRUNCH_WORK"} = $ENV{"JOB_WORK"}; # deprecated
120 mkdir ($ENV{"JOB_WORK"});
129 my $docker_bin = "docker.io";
130 my $docker_run_args = "";
131 GetOptions('force-unlock' => \$force_unlock,
132 'git-dir=s' => \$git_dir,
133 'job=s' => \$jobspec,
134 'job-api-token=s' => \$job_api_token,
135 'no-clear-tmp' => \$no_clear_tmp,
136 'resume-stash=s' => \$resume_stash,
137 'docker-bin=s' => \$docker_bin,
138 'docker-run-args=s' => \$docker_run_args,
141 if (defined $job_api_token) {
142 $ENV{ARVADOS_API_TOKEN} = $job_api_token;
145 my $have_slurm = exists $ENV{SLURM_JOB_ID} && exists $ENV{SLURM_NODELIST};
150 $main::ENV{CRUNCH_DEBUG} = 1;
154 $main::ENV{CRUNCH_DEBUG} = 0;
157 my $arv = Arvados->new('apiVersion' => 'v1');
166 if ($jobspec =~ /^[-a-z\d]+$/)
168 # $jobspec is an Arvados UUID, not a JSON job specification
169 $Job = api_call("jobs/get", uuid => $jobspec);
174 $local_job = JSON::decode_json($jobspec);
178 # Make sure our workers (our slurm nodes, localhost, or whatever) are
179 # at least able to run basic commands: they aren't down or severely
182 if (($Job || $local_job)->{docker_image_locator}) {
183 $cmd = [$docker_bin, 'ps', '-q'];
185 Log(undef, "Sanity check is `@$cmd`");
186 srun(["srun", "--nodes=\Q$ENV{SLURM_NNODES}\E", "--ntasks-per-node=1"],
190 Log(undef, "Sanity check failed: ".exit_status_s($?));
193 Log(undef, "Sanity check OK");
196 my $User = api_call("users/current");
199 if (!$force_unlock) {
200 # Claim this job, and make sure nobody else does
201 eval { api_call("jobs/lock", uuid => $Job->{uuid}); };
203 Log(undef, "Error while locking job, exiting ".EX_TEMPFAIL);
212 map { croak ("No $_ specified") unless $local_job->{$_} }
213 qw(script script_version script_parameters);
216 $local_job->{'is_locked_by_uuid'} = $User->{'uuid'};
217 $local_job->{'started_at'} = gmtime;
218 $local_job->{'state'} = 'Running';
220 $Job = api_call("jobs/create", job => $local_job);
222 $job_id = $Job->{'uuid'};
224 my $keep_logfile = $job_id . '.log.txt';
225 log_writer_start($keep_logfile);
227 $Job->{'runtime_constraints'} ||= {};
228 $Job->{'runtime_constraints'}->{'max_tasks_per_node'} ||= 0;
229 my $max_ncpus = $Job->{'runtime_constraints'}->{'max_tasks_per_node'};
231 my $gem_versions = `gem list --quiet arvados-cli 2>/dev/null`;
233 $gem_versions =~ s/^arvados-cli \(/ with arvados-cli Gem version(s) /;
234 chomp($gem_versions);
235 chop($gem_versions); # Closing parentheses
240 "running from " . ((-e $0) ? realpath($0) : "stdin") . $gem_versions);
242 Log (undef, "check slurm allocation");
245 # Should use $ENV{SLURM_TASKS_PER_NODE} instead of sinfo? (eg. "4(x3),2,4(x2)")
249 my $localcpus = 0 + `grep -cw ^processor /proc/cpuinfo` || 1;
250 push @sinfo, "$localcpus localhost";
252 if (exists $ENV{SLURM_NODELIST})
254 push @sinfo, `sinfo -h --format='%c %N' --nodes=\Q$ENV{SLURM_NODELIST}\E`;
258 my ($ncpus, $slurm_nodelist) = split;
259 $ncpus = $max_ncpus if $max_ncpus && $ncpus > $max_ncpus;
262 while ($slurm_nodelist =~ s/^([^\[,]+?(\[.*?\])?)(,|$)//)
265 if ($nodelist =~ /\[((\d+)(-(\d+))?(,(\d+)(-(\d+))?)*)\]/)
268 foreach (split (",", $ranges))
281 push @nodelist, map {
283 $n =~ s/\[[-,\d]+\]/$_/;
290 push @nodelist, $nodelist;
293 foreach my $nodename (@nodelist)
295 Log (undef, "node $nodename - $ncpus slots");
296 my $node = { name => $nodename,
298 # The number of consecutive times a task has been dispatched
299 # to this node and failed.
301 # The number of consecutive times that SLURM has reported
302 # a node failure since the last successful task.
304 # Don't dispatch work to this node until this time
305 # (in seconds since the epoch) has passed.
307 foreach my $cpu (1..$ncpus)
309 push @slot, { node => $node,
313 push @node, @nodelist;
318 # Ensure that we get one jobstep running on each allocated node before
319 # we start overloading nodes with concurrent steps
321 @slot = sort { $a->{cpu} <=> $b->{cpu} } @slot;
324 $Job->update_attributes(
325 'tasks_summary' => { 'failed' => 0,
330 Log (undef, "start");
331 $SIG{'INT'} = sub { $main::please_freeze = 1; };
332 $SIG{'QUIT'} = sub { $main::please_freeze = 1; };
333 $SIG{'TERM'} = \&croak;
334 $SIG{'TSTP'} = sub { $main::please_freeze = 1; };
335 $SIG{'ALRM'} = sub { $main::please_info = 1; };
336 $SIG{'CONT'} = sub { $main::please_continue = 1; };
337 $SIG{'HUP'} = sub { $main::please_refresh = 1; };
339 $main::please_freeze = 0;
340 $main::please_info = 0;
341 $main::please_continue = 0;
342 $main::please_refresh = 0;
343 my $jobsteps_must_output_keys = 0; # becomes 1 when any task outputs a key
345 grep { $ENV{$1} = $2 if /^(NOCACHE.*?)=(.*)/ } split ("\n", $$Job{knobs});
346 $ENV{"CRUNCH_JOB_UUID"} = $job_id;
347 $ENV{"JOB_UUID"} = $job_id;
350 my @jobstep_todo = ();
351 my @jobstep_done = ();
352 my @jobstep_tomerge = ();
353 my $jobstep_tomerge_level = 0;
354 my $squeue_checked = 0;
355 my $latest_refresh = scalar time;
359 if (defined $Job->{thawedfromkey})
361 thaw ($Job->{thawedfromkey});
365 my $first_task = api_call("job_tasks/create", job_task => {
366 'job_uuid' => $Job->{'uuid'},
371 push @jobstep, { 'level' => 0,
373 'arvados_task' => $first_task,
375 push @jobstep_todo, 0;
381 must_lock_now("$ENV{CRUNCH_TMP}/.lock", "a job is already running here.");
384 my $build_script = handle_readall(\*DATA);
385 my $nodelist = join(",", @node);
386 my $git_tar_count = 0;
388 if (!defined $no_clear_tmp) {
389 # Clean out crunch_tmp/work, crunch_tmp/opt, crunch_tmp/src*
390 Log (undef, "Clean work dirs");
392 my $cleanpid = fork();
395 # Find FUSE mounts under $CRUNCH_TMP and unmount them.
396 # Then clean up work directories.
397 # TODO: When #5036 is done and widely deployed, we can limit mount's
398 # -t option to simply fuse.keep.
399 srun (["srun", "--nodelist=$nodelist", "-D", $ENV{'TMPDIR'}],
400 ['bash', '-ec', '-o', 'pipefail', 'mount -t fuse,fuse.keep | awk "(index(\$3, \"$CRUNCH_TMP\") == 1){print \$3}" | xargs -r -n 1 fusermount -u -z; sleep 1; rm -rf $JOB_WORK $CRUNCH_INSTALL $CRUNCH_TMP/task $CRUNCH_TMP/src* $CRUNCH_TMP/*.cid']);
405 last if $cleanpid == waitpid (-1, WNOHANG);
406 freeze_if_want_freeze ($cleanpid);
407 select (undef, undef, undef, 0.1);
410 Log(undef, "Clean work dirs: exit ".exit_status_s($?));
411 exit(EX_RETRY_UNLOCKED);
415 # If this job requires a Docker image, install that.
416 my ($docker_locator, $docker_stream, $docker_hash, $docker_limitmem, $dockeruserarg);
417 if ($docker_locator = $Job->{docker_image_locator}) {
418 ($docker_stream, $docker_hash) = find_docker_image($docker_locator);
421 croak("No Docker image hash found from locator $docker_locator");
423 $docker_stream =~ s/^\.//;
424 my $docker_install_script = qq{
425 if ! $docker_bin images -q --no-trunc --all | grep -qxF \Q$docker_hash\E; then
426 arv-get \Q$docker_locator$docker_stream/$docker_hash.tar\E | $docker_bin load
429 my $docker_pid = fork();
430 if ($docker_pid == 0)
432 srun (["srun", "--nodelist=" . join(',', @node)],
433 ["/bin/sh", "-ec", $docker_install_script]);
438 last if $docker_pid == waitpid (-1, WNOHANG);
439 freeze_if_want_freeze ($docker_pid);
440 select (undef, undef, undef, 0.1);
444 croak("Installing Docker image from $docker_locator exited "
448 # Determine whether this version of Docker supports memory+swap limits.
449 srun(["srun", "--nodelist=" . $node[0]],
450 ["/bin/sh", "-ec", "$docker_bin run --help | grep -qe --memory-swap="],
452 $docker_limitmem = ($? == 0);
454 # Find a non-root Docker user to use.
455 # Tries the default user for the container, then 'crunch', then 'nobody',
456 # testing for whether the actual user id is non-zero. This defends against
457 # mistakes but not malice, but we intend to harden the security in the future
458 # so we don't want anyone getting used to their jobs running as root in their
460 my @tryusers = ("", "crunch", "nobody");
461 foreach my $try_user (@tryusers) {
463 if ($try_user eq "") {
464 Log(undef, "Checking if container default user is not UID 0");
467 Log(undef, "Checking if user '$try_user' is not UID 0");
468 $try_user_arg = "--user=$try_user";
470 srun(["srun", "--nodelist=" . $node[0]],
472 "a=`$docker_bin run $docker_run_args $try_user_arg $docker_hash id --user` && " .
476 $dockeruserarg = $try_user_arg;
477 if ($try_user eq "") {
478 Log(undef, "Container will run with default user");
480 Log(undef, "Container will run with $dockeruserarg");
486 if (!defined $dockeruserarg) {
487 croak("Could not find a user in container that is not UID 0 (tried default user, @tryusers) or there was a problem running 'id' in the container.");
490 if ($Job->{arvados_sdk_version}) {
491 # The job also specifies an Arvados SDK version. Add the SDKs to the
492 # tar file for the build script to install.
493 Log(undef, sprintf("Packing Arvados SDK version %s for installation",
494 $Job->{arvados_sdk_version}));
495 add_git_archive("git", "--git-dir=$git_dir", "archive",
496 "--prefix=.arvados.sdk/",
497 $Job->{arvados_sdk_version}, "sdk");
501 if (!defined $git_dir && $Job->{'script_version'} =~ m{^/}) {
502 # If script_version looks like an absolute path, *and* the --git-dir
503 # argument was not given -- which implies we were not invoked by
504 # crunch-dispatch -- we will use the given path as a working
505 # directory instead of resolving script_version to a git commit (or
506 # doing anything else with git).
507 $ENV{"CRUNCH_SRC_COMMIT"} = $Job->{'script_version'};
508 $ENV{"CRUNCH_SRC"} = $Job->{'script_version'};
511 # Resolve the given script_version to a git commit sha1. Also, if
512 # the repository is remote, clone it into our local filesystem: this
513 # ensures "git archive" will work, and is necessary to reliably
514 # resolve a symbolic script_version like "master^".
515 $ENV{"CRUNCH_SRC"} = "$ENV{CRUNCH_TMP}/src";
517 Log (undef, "Looking for version ".$Job->{script_version}." from repository ".$Job->{repository});
519 $ENV{"CRUNCH_SRC_COMMIT"} = $Job->{script_version};
521 # If we're running under crunch-dispatch, it will have already
522 # pulled the appropriate source tree into its own repository, and
523 # given us that repo's path as $git_dir.
525 # If we're running a "local" job, we might have to fetch content
526 # from a remote repository.
528 # (Currently crunch-dispatch gives a local path with --git-dir, but
529 # we might as well accept URLs there too in case it changes its
531 my $repo = $git_dir || $Job->{'repository'};
533 # Repository can be remote or local. If remote, we'll need to fetch it
534 # to a local dir before doing `git log` et al.
537 if ($repo =~ m{://|^[^/]*:}) {
538 # $repo is a git url we can clone, like git:// or https:// or
539 # file:/// or [user@]host:repo.git. Note "user/name@host:foo" is
540 # not recognized here because distinguishing that from a local
541 # path is too fragile. If you really need something strange here,
542 # use the ssh:// form.
543 $repo_location = 'remote';
544 } elsif ($repo =~ m{^\.*/}) {
545 # $repo is a local path to a git index. We'll also resolve ../foo
546 # to ../foo/.git if the latter is a directory. To help
547 # disambiguate local paths from named hosted repositories, this
548 # form must be given as ./ or ../ if it's a relative path.
549 if (-d "$repo/.git") {
550 $repo = "$repo/.git";
552 $repo_location = 'local';
554 # $repo is none of the above. It must be the name of a hosted
556 my $arv_repo_list = api_call("repositories/list",
557 'filters' => [['name','=',$repo]]);
558 my @repos_found = @{$arv_repo_list->{'items'}};
559 my $n_found = $arv_repo_list->{'serverResponse'}->{'items_available'};
561 Log(undef, "Repository '$repo' -> "
562 . join(", ", map { $_->{'uuid'} } @repos_found));
565 croak("Error: Found $n_found repositories with name '$repo'.");
567 $repo = $repos_found[0]->{'fetch_url'};
568 $repo_location = 'remote';
570 Log(undef, "Using $repo_location repository '$repo'");
571 $ENV{"CRUNCH_SRC_URL"} = $repo;
573 # Resolve given script_version (we'll call that $treeish here) to a
574 # commit sha1 ($commit).
575 my $treeish = $Job->{'script_version'};
577 if ($repo_location eq 'remote') {
578 # We minimize excess object-fetching by re-using the same bare
579 # repository in CRUNCH_TMP/.git for multiple crunch-jobs -- we
580 # just keep adding remotes to it as needed.
581 my $local_repo = $ENV{'CRUNCH_TMP'}."/.git";
582 my $gitcmd = "git --git-dir=\Q$local_repo\E";
584 # Set up our local repo for caching remote objects, making
586 if (!-d $local_repo) {
587 make_path($local_repo) or croak("Error: could not create $local_repo");
589 # This works (exits 0 and doesn't delete fetched objects) even
590 # if $local_repo is already initialized:
591 `$gitcmd init --bare`;
593 croak("Error: $gitcmd init --bare exited ".exit_status_s($?));
596 # If $treeish looks like a hash (or abbrev hash) we look it up in
597 # our local cache first, since that's cheaper. (We don't want to
598 # do that with tags/branches though -- those change over time, so
599 # they should always be resolved by the remote repo.)
600 if ($treeish =~ /^[0-9a-f]{7,40}$/s) {
601 # Hide stderr because it's normal for this to fail:
602 my $sha1 = `$gitcmd rev-list -n1 ''\Q$treeish\E 2>/dev/null`;
604 # Careful not to resolve a branch named abcdeff to commit 1234567:
605 $sha1 =~ /^$treeish/ &&
606 $sha1 =~ /^([0-9a-f]{40})$/s) {
608 Log(undef, "Commit $commit already present in $local_repo");
612 if (!defined $commit) {
613 # If $treeish isn't just a hash or abbrev hash, or isn't here
614 # yet, we need to fetch the remote to resolve it correctly.
616 # First, remove all local heads. This prevents a name that does
617 # not exist on the remote from resolving to (or colliding with)
618 # a previously fetched branch or tag (possibly from a different
620 remove_tree("$local_repo/refs/heads", {keep_root => 1});
622 Log(undef, "Fetching objects from $repo to $local_repo");
623 `$gitcmd fetch --no-progress --tags ''\Q$repo\E \Q+refs/heads/*:refs/heads/*\E`;
625 croak("Error: `$gitcmd fetch` exited ".exit_status_s($?));
629 # Now that the data is all here, we will use our local repo for
630 # the rest of our git activities.
634 my $gitcmd = "git --git-dir=\Q$repo\E";
635 my $sha1 = `$gitcmd rev-list -n1 ''\Q$treeish\E`;
636 unless ($? == 0 && $sha1 =~ /^([0-9a-f]{40})$/) {
637 croak("`$gitcmd rev-list` exited "
639 .", '$treeish' not found, giving up");
642 Log(undef, "Version $treeish is commit $commit");
644 if ($commit ne $Job->{'script_version'}) {
645 # Record the real commit id in the database, frozentokey, logs,
646 # etc. -- instead of an abbreviation or a branch name which can
647 # become ambiguous or point to a different commit in the future.
648 if (!$Job->update_attributes('script_version' => $commit)) {
649 croak("Error: failed to update job's script_version attribute");
653 $ENV{"CRUNCH_SRC_COMMIT"} = $commit;
654 add_git_archive("$gitcmd archive ''\Q$commit\E");
657 my $git_archive = combined_git_archive();
658 if (!defined $git_archive) {
659 Log(undef, "Skip install phase (no git archive)");
661 Log(undef, "Warning: This probably means workers have no source tree!");
666 my $install_script_tries_left = 3;
667 for (my $attempts = 0; $attempts < 3; $attempts++) {
668 Log(undef, "Run install script on all workers");
670 my @srunargs = ("srun",
671 "--nodelist=$nodelist",
672 "-D", $ENV{'TMPDIR'}, "--job-name=$job_id");
673 my @execargs = ("sh", "-c",
674 "mkdir -p $ENV{CRUNCH_INSTALL} && cd $ENV{CRUNCH_TMP} && perl -");
676 $ENV{"CRUNCH_GIT_ARCHIVE_HASH"} = md5_hex($git_archive);
677 my ($install_stderr_r, $install_stderr_w);
678 pipe $install_stderr_r, $install_stderr_w or croak("pipe() failed: $!");
679 set_nonblocking($install_stderr_r);
680 my $installpid = fork();
681 if ($installpid == 0)
683 close($install_stderr_r);
684 fcntl($install_stderr_w, F_SETFL, 0) or croak($!); # no close-on-exec
685 open(STDOUT, ">&", $install_stderr_w);
686 open(STDERR, ">&", $install_stderr_w);
687 srun (\@srunargs, \@execargs, {}, $build_script . $git_archive);
690 close($install_stderr_w);
691 # Tell freeze_if_want_freeze how to kill the child, otherwise the
692 # "waitpid(installpid)" loop won't get interrupted by a freeze:
693 $proc{$installpid} = {};
695 # Track whether anything appears on stderr other than slurm errors
696 # ("srun: ...") and the "starting: ..." message printed by the
697 # srun subroutine itself:
698 my $stderr_anything_from_script = 0;
699 my $match_our_own_errors = '^(srun: error: |starting: \[)';
700 while ($installpid != waitpid(-1, WNOHANG)) {
701 freeze_if_want_freeze ($installpid);
702 # Wait up to 0.1 seconds for something to appear on stderr, then
703 # do a non-blocking read.
704 my $bits = fhbits($install_stderr_r);
705 select ($bits, undef, $bits, 0.1);
706 if (0 < sysread ($install_stderr_r, $stderr_buf, 8192, length($stderr_buf)))
708 while ($stderr_buf =~ /^(.*?)\n/) {
710 substr $stderr_buf, 0, 1+length($line), "";
711 Log(undef, "stderr $line");
712 if ($line !~ /$match_our_own_errors/) {
713 $stderr_anything_from_script = 1;
718 delete $proc{$installpid};
719 $install_exited = $?;
720 close($install_stderr_r);
721 if (length($stderr_buf) > 0) {
722 if ($stderr_buf !~ /$match_our_own_errors/) {
723 $stderr_anything_from_script = 1;
725 Log(undef, "stderr $stderr_buf")
728 Log (undef, "Install script exited ".exit_status_s($install_exited));
729 last if $install_exited == 0 || $main::please_freeze;
730 # If the install script fails but doesn't print an error message,
731 # the next thing anyone is likely to do is just run it again in
732 # case it was a transient problem like "slurm communication fails
733 # because the network isn't reliable enough". So we'll just do
734 # that ourselves (up to 3 attempts in total). OTOH, if there is an
735 # error message, the problem is more likely to have a real fix and
736 # we should fail the job so the fixing process can start, instead
737 # of doing 2 more attempts.
738 last if $stderr_anything_from_script;
741 foreach my $tar_filename (map { tar_filename_n($_); } (1..$git_tar_count)) {
742 unlink($tar_filename);
745 if ($install_exited != 0) {
750 foreach (qw (script script_version script_parameters runtime_constraints))
754 (ref($Job->{$_}) ? JSON::encode_json($Job->{$_}) : $Job->{$_}));
756 foreach (split (/\n/, $Job->{knobs}))
758 Log (undef, "knob " . $_);
763 $main::success = undef;
769 my $thisround_succeeded = 0;
770 my $thisround_failed = 0;
771 my $thisround_failed_multiple = 0;
772 my $working_slot_count = scalar(@slot);
774 @jobstep_todo = sort { $jobstep[$a]->{level} <=> $jobstep[$b]->{level}
775 or $a <=> $b } @jobstep_todo;
776 my $level = $jobstep[$jobstep_todo[0]]->{level};
778 my $initial_tasks_this_level = 0;
779 foreach my $id (@jobstep_todo) {
780 $initial_tasks_this_level++ if ($jobstep[$id]->{level} == $level);
783 # If the number of tasks scheduled at this level #T is smaller than the number
784 # of slots available #S, only use the first #T slots, or the first slot on
785 # each node, whichever number is greater.
787 # When we dispatch tasks later, we'll allocate whole-node resources like RAM
788 # based on these numbers. Using fewer slots makes more resources available
789 # to each individual task, which should normally be a better strategy when
790 # there are fewer of them running with less parallelism.
792 # Note that this calculation is not redone if the initial tasks at
793 # this level queue more tasks at the same level. This may harm
794 # overall task throughput for that level.
796 if ($initial_tasks_this_level < @node) {
797 @freeslot = (0..$#node);
798 } elsif ($initial_tasks_this_level < @slot) {
799 @freeslot = (0..$initial_tasks_this_level - 1);
801 @freeslot = (0..$#slot);
803 my $round_num_freeslots = scalar(@freeslot);
805 my %round_max_slots = ();
806 for (my $ii = $#freeslot; $ii >= 0; $ii--) {
807 my $this_slot = $slot[$freeslot[$ii]];
808 my $node_name = $this_slot->{node}->{name};
809 $round_max_slots{$node_name} ||= $this_slot->{cpu};
810 last if (scalar(keys(%round_max_slots)) >= @node);
813 Log(undef, "start level $level with $round_num_freeslots slots");
816 my $progress_is_dirty = 1;
817 my $progress_stats_updated = 0;
819 update_progress_stats();
823 for (my $todo_ptr = 0; $todo_ptr <= $#jobstep_todo; $todo_ptr ++)
825 # Don't create new tasks if we already know the job's final result.
826 last if defined($main::success);
828 my $id = $jobstep_todo[$todo_ptr];
829 my $Jobstep = $jobstep[$id];
830 if ($Jobstep->{level} != $level)
835 pipe $reader{$id}, "writer" or croak("pipe() failed: $!");
836 set_nonblocking($reader{$id});
838 my $childslot = $freeslot[0];
839 my $childnode = $slot[$childslot]->{node};
840 my $childslotname = join (".",
841 $slot[$childslot]->{node}->{name},
842 $slot[$childslot]->{cpu});
844 my $childpid = fork();
847 $SIG{'INT'} = 'DEFAULT';
848 $SIG{'QUIT'} = 'DEFAULT';
849 $SIG{'TERM'} = 'DEFAULT';
851 foreach (values (%reader))
855 fcntl ("writer", F_SETFL, 0) or croak ($!); # no close-on-exec
856 open(STDOUT,">&writer");
857 open(STDERR,">&writer");
862 delete $ENV{"GNUPGHOME"};
863 $ENV{"TASK_UUID"} = $Jobstep->{'arvados_task'}->{'uuid'};
864 $ENV{"TASK_QSEQUENCE"} = $id;
865 $ENV{"TASK_SEQUENCE"} = $level;
866 $ENV{"JOB_SCRIPT"} = $Job->{script};
867 while (my ($param, $value) = each %{$Job->{script_parameters}}) {
868 $param =~ tr/a-z/A-Z/;
869 $ENV{"JOB_PARAMETER_$param"} = $value;
871 $ENV{"TASK_SLOT_NODE"} = $slot[$childslot]->{node}->{name};
872 $ENV{"TASK_SLOT_NUMBER"} = $slot[$childslot]->{cpu};
873 $ENV{"TASK_WORK"} = $ENV{"CRUNCH_TMP"}."/task/$childslotname";
874 $ENV{"HOME"} = $ENV{"TASK_WORK"};
875 $ENV{"TASK_KEEPMOUNT"} = $ENV{"TASK_WORK"}.".keep";
876 $ENV{"TASK_TMPDIR"} = $ENV{"TASK_WORK"}; # deprecated
877 $ENV{"CRUNCH_NODE_SLOTS"} = $round_max_slots{$ENV{TASK_SLOT_NODE}};
878 $ENV{"PATH"} = $ENV{"CRUNCH_INSTALL"} . "/bin:" . $ENV{"PATH"};
884 "--nodelist=".$childnode->{name},
885 qw(-n1 -c1 -N1 -D), $ENV{'TMPDIR'},
886 "--job-name=$job_id.$id.$$",
889 my $stdbuf = " stdbuf --output=0 --error=0 ";
891 my $arv_file_cache = "";
892 if (defined($Job->{'runtime_constraints'}->{'keep_cache_mb_per_task'})) {
893 $arv_file_cache = "--file-cache=" . ($Job->{'runtime_constraints'}->{'keep_cache_mb_per_task'} * 1024 * 1024);
897 "if [ -e $ENV{TASK_WORK} ]; then rm -rf $ENV{TASK_WORK}; fi; "
898 ."mkdir -p $ENV{CRUNCH_TMP} $ENV{JOB_WORK} $ENV{TASK_WORK} $ENV{TASK_KEEPMOUNT} "
899 ."&& cd $ENV{CRUNCH_TMP} "
900 # These environment variables get used explicitly later in
901 # $command. No tool is expected to read these values directly.
902 .q{&& MEM=$(awk '($1 == "MemTotal:"){print $2}' </proc/meminfo) }
903 .q{&& SWAP=$(awk '($1 == "SwapTotal:"){print $2}' </proc/meminfo) }
904 ."&& MEMLIMIT=\$(( (\$MEM * 95) / ($ENV{CRUNCH_NODE_SLOTS} * 100) )) "
905 ."&& let SWAPLIMIT=\$MEMLIMIT+\$SWAP ";
906 $command .= "&& exec arv-mount --by-pdh --crunchstat-interval=10 --allow-other $arv_file_cache $ENV{TASK_KEEPMOUNT} --exec ";
909 my $containername = "$Jobstep->{arvados_task}->{uuid}-$Jobstep->{failures}";
910 my $cidfile = "$ENV{CRUNCH_TMP}/$containername.cid";
911 $command .= "crunchstat -cgroup-root=/sys/fs/cgroup -cgroup-parent=docker -cgroup-cid=$cidfile -poll=10000 ";
912 $command .= "$docker_bin run $docker_run_args --name=$containername --attach=stdout --attach=stderr --attach=stdin -i \Q$dockeruserarg\E --cidfile=$cidfile --sig-proxy ";
913 # We only set memory limits if Docker lets us limit both memory and swap.
914 # Memory limits alone have been supported longer, but subprocesses tend
915 # to get SIGKILL if they exceed that without any swap limit set.
916 # See #5642 for additional background.
917 if ($docker_limitmem) {
918 $command .= "--memory=\${MEMLIMIT}k --memory-swap=\${SWAPLIMIT}k ";
921 # The source tree and $destdir directory (which we have
922 # installed on the worker host) are available in the container,
923 # under the same path.
924 $command .= "--volume=\Q$ENV{CRUNCH_SRC}:$ENV{CRUNCH_SRC}:ro\E ";
925 $command .= "--volume=\Q$ENV{CRUNCH_INSTALL}:$ENV{CRUNCH_INSTALL}:ro\E ";
927 # Currently, we make arv-mount's mount point appear at /keep
928 # inside the container (instead of using the same path as the
929 # host like we do with CRUNCH_SRC and CRUNCH_INSTALL). However,
930 # crunch scripts and utilities must not rely on this. They must
931 # use $TASK_KEEPMOUNT.
932 $command .= "--volume=\Q$ENV{TASK_KEEPMOUNT}:/keep:ro\E ";
933 $ENV{TASK_KEEPMOUNT} = "/keep";
935 # TASK_WORK is almost exactly like a docker data volume: it
936 # starts out empty, is writable, and persists until no
937 # containers use it any more. We don't use --volumes-from to
938 # share it with other containers: it is only accessible to this
939 # task, and it goes away when this task stops.
941 # However, a docker data volume is writable only by root unless
942 # the mount point already happens to exist in the container with
943 # different permissions. Therefore, we [1] assume /tmp already
944 # exists in the image and is writable by the crunch user; [2]
945 # avoid putting TASK_WORK inside CRUNCH_TMP (which won't be
946 # writable if they are created by docker while setting up the
947 # other --volumes); and [3] create $TASK_WORK inside the
948 # container using $build_script.
949 $command .= "--volume=/tmp ";
950 $ENV{"TASK_WORK"} = "/tmp/crunch-job-task-work/$childslotname";
951 $ENV{"HOME"} = $ENV{"TASK_WORK"};
952 $ENV{"TASK_TMPDIR"} = $ENV{"TASK_WORK"}; # deprecated
954 # TODO: Share a single JOB_WORK volume across all task
955 # containers on a given worker node, and delete it when the job
956 # ends (and, in case that doesn't work, when the next job
959 # For now, use the same approach as TASK_WORK above.
960 $ENV{"JOB_WORK"} = "/tmp/crunch-job-work";
962 while (my ($env_key, $env_val) = each %ENV)
964 if ($env_key =~ /^(ARVADOS|CRUNCH|JOB|TASK)_/) {
965 $command .= "--env=\Q$env_key=$env_val\E ";
968 $command .= "--env=\QHOME=$ENV{HOME}\E ";
969 $command .= "\Q$docker_hash\E ";
971 if ($Job->{arvados_sdk_version}) {
973 $command .= "perl - \Q$ENV{CRUNCH_SRC}/crunch_scripts/$Job->{script}\E";
975 $command .= "/bin/sh -c \'python -c " .
976 '"from pkg_resources import get_distribution as get; print \"Using Arvados SDK version\", get(\"arvados-python-client\").version"' .
977 ">&2 2>/dev/null; " .
978 "mkdir -p \"$ENV{JOB_WORK}\" \"$ENV{TASK_WORK}\" && " .
979 "if which stdbuf >/dev/null ; then " .
980 " exec $stdbuf \Q$ENV{CRUNCH_SRC}/crunch_scripts/$Job->{script}\E ;" .
982 " exec \Q$ENV{CRUNCH_SRC}/crunch_scripts/$Job->{script}\E ;" .
987 $command .= "crunchstat -cgroup-root=/sys/fs/cgroup -poll=10000 ";
989 $command .= "perl - $ENV{CRUNCH_SRC}/crunch_scripts/" . $Job->{"script"};
992 my @execargs = ('bash', '-c', $command);
993 srun (\@srunargs, \@execargs, undef, $build_script);
994 # exec() failed, we assume nothing happened.
995 die "srun() failed on build script\n";
998 if (!defined $childpid)
1001 delete $reader{$id};
1005 $proc{$childpid} = { jobstep => $id,
1008 jobstepname => "$job_id.$id.$childpid",
1010 croak ("assert failed: \$slot[$childslot]->{'pid'} exists") if exists $slot[$childslot]->{pid};
1011 $slot[$childslot]->{pid} = $childpid;
1013 Log ($id, "job_task ".$Jobstep->{'arvados_task'}->{'uuid'});
1014 Log ($id, "child $childpid started on $childslotname");
1015 $Jobstep->{starttime} = time;
1016 $Jobstep->{node} = $childnode->{name};
1017 $Jobstep->{slotindex} = $childslot;
1018 delete $Jobstep->{stderr};
1019 delete $Jobstep->{finishtime};
1020 delete $Jobstep->{tempfail};
1022 $Jobstep->{'arvados_task'}->{started_at} = strftime "%Y-%m-%dT%H:%M:%SZ", gmtime($Jobstep->{starttime});
1023 $Jobstep->{'arvados_task'}->save;
1025 splice @jobstep_todo, $todo_ptr, 1;
1028 $progress_is_dirty = 1;
1032 ($round_num_freeslots > @freeslot && $todo_ptr+1 > $#jobstep_todo))
1034 last THISROUND if $main::please_freeze;
1035 if ($main::please_info)
1037 $main::please_info = 0;
1039 create_output_collection();
1041 update_progress_stats();
1046 if (!$gotsome || ($latest_refresh + 2 < scalar time))
1048 check_refresh_wanted();
1050 update_progress_stats();
1051 select (undef, undef, undef, 0.1);
1053 elsif (time - $progress_stats_updated >= 30 || $progress_is_dirty)
1055 update_progress_stats();
1057 $working_slot_count = scalar(grep { $_->{node}->{fail_count} == 0 &&
1058 $_->{node}->{hold_count} < 4 } @slot);
1059 if (($thisround_failed_multiple >= 8 && $thisround_succeeded == 0) ||
1060 ($thisround_failed_multiple >= 16 && $thisround_failed_multiple > $thisround_succeeded))
1062 my $message = "Repeated failure rate too high ($thisround_failed_multiple/"
1063 .($thisround_failed+$thisround_succeeded)
1064 .") -- giving up on this round";
1065 Log (undef, $message);
1069 # move slots from freeslot to holdslot (or back to freeslot) if necessary
1070 for (my $i=$#freeslot; $i>=0; $i--) {
1071 if ($slot[$freeslot[$i]]->{node}->{hold_until} > scalar time) {
1072 push @holdslot, (splice @freeslot, $i, 1);
1075 for (my $i=$#holdslot; $i>=0; $i--) {
1076 if ($slot[$holdslot[$i]]->{node}->{hold_until} <= scalar time) {
1077 push @freeslot, (splice @holdslot, $i, 1);
1081 # give up if no nodes are succeeding
1082 if ($working_slot_count < 1) {
1083 Log(undef, "Every node has failed -- giving up");
1090 push @freeslot, splice @holdslot;
1091 map { $slot[$freeslot[$_]]->{node}->{losing_streak} = 0 } (0..$#freeslot);
1094 Log (undef, "wait for last ".(scalar keys %proc)." children to finish");
1097 if ($main::please_continue) {
1098 $main::please_continue = 0;
1101 $main::please_info = 0, freeze(), create_output_collection(), save_meta(1) if $main::please_info;
1103 if (!reapchildren())
1105 check_refresh_wanted();
1107 update_progress_stats();
1108 select (undef, undef, undef, 0.1);
1109 killem (keys %proc) if $main::please_freeze;
1113 update_progress_stats();
1114 freeze_if_want_freeze();
1117 if (!defined $main::success)
1119 if (!@jobstep_todo) {
1121 } elsif ($working_slot_count < 1) {
1122 save_output_collection();
1124 exit(EX_RETRY_UNLOCKED);
1125 } elsif ($thisround_succeeded == 0 &&
1126 ($thisround_failed == 0 || $thisround_failed > 4)) {
1127 my $message = "stop because $thisround_failed tasks failed and none succeeded";
1128 Log (undef, $message);
1133 goto ONELEVEL if !defined $main::success;
1136 release_allocation();
1138 my $collated_output = save_output_collection();
1139 Log (undef, "finish");
1144 if ($collated_output && $main::success) {
1145 $final_state = 'Complete';
1147 $final_state = 'Failed';
1149 $Job->update_attributes('state' => $final_state);
1151 exit (($final_state eq 'Complete') ? 0 : 1);
1155 sub update_progress_stats
1157 $progress_stats_updated = time;
1158 return if !$progress_is_dirty;
1159 my ($todo, $done, $running) = (scalar @jobstep_todo,
1160 scalar @jobstep_done,
1161 scalar keys(%proc));
1162 $Job->{'tasks_summary'} ||= {};
1163 $Job->{'tasks_summary'}->{'todo'} = $todo;
1164 $Job->{'tasks_summary'}->{'done'} = $done;
1165 $Job->{'tasks_summary'}->{'running'} = $running;
1166 $Job->update_attributes('tasks_summary' => $Job->{'tasks_summary'});
1167 Log (undef, "status: $done done, $running running, $todo todo");
1168 $progress_is_dirty = 0;
1175 my $pid = waitpid (-1, WNOHANG);
1176 return 0 if $pid <= 0;
1178 my $whatslot = ($slot[$proc{$pid}->{slot}]->{node}->{name}
1180 . $slot[$proc{$pid}->{slot}]->{cpu});
1181 my $jobstepid = $proc{$pid}->{jobstep};
1182 my $elapsed = time - $proc{$pid}->{time};
1183 my $Jobstep = $jobstep[$jobstepid];
1185 my $childstatus = $?;
1186 my $exitvalue = $childstatus >> 8;
1187 my $exitinfo = "exit ".exit_status_s($childstatus);
1188 $Jobstep->{'arvados_task'}->reload;
1189 my $task_success = $Jobstep->{'arvados_task'}->{success};
1191 Log ($jobstepid, "child $pid on $whatslot $exitinfo success=$task_success");
1193 if (!defined $task_success) {
1194 # task did not indicate one way or the other --> fail
1195 Log($jobstepid, sprintf(
1196 "ERROR: Task process exited %s, but never updated its task record to indicate success and record its output.",
1197 exit_status_s($childstatus)));
1198 $Jobstep->{'arvados_task'}->{success} = 0;
1199 $Jobstep->{'arvados_task'}->save;
1206 $temporary_fail ||= $Jobstep->{tempfail};
1207 $temporary_fail ||= ($exitvalue == TASK_TEMPFAIL);
1209 ++$thisround_failed;
1210 ++$thisround_failed_multiple if $Jobstep->{'failures'} >= 1;
1212 # Check for signs of a failed or misconfigured node
1213 if (++$slot[$proc{$pid}->{slot}]->{node}->{losing_streak} >=
1214 2+$slot[$proc{$pid}->{slot}]->{node}->{ncpus}) {
1215 # Don't count this against jobstep failure thresholds if this
1216 # node is already suspected faulty and srun exited quickly
1217 if ($slot[$proc{$pid}->{slot}]->{node}->{hold_until} &&
1219 Log ($jobstepid, "blaming failure on suspect node " .
1220 $slot[$proc{$pid}->{slot}]->{node}->{name});
1221 $temporary_fail ||= 1;
1223 ban_node_by_slot($proc{$pid}->{slot});
1226 Log ($jobstepid, sprintf('failure (#%d, %s) after %d seconds',
1227 ++$Jobstep->{'failures'},
1228 $temporary_fail ? 'temporary' : 'permanent',
1231 if (!$temporary_fail || $Jobstep->{'failures'} >= 3) {
1232 # Give up on this task, and the whole job
1235 # Put this task back on the todo queue
1236 push @jobstep_todo, $jobstepid;
1237 $Job->{'tasks_summary'}->{'failed'}++;
1241 ++$thisround_succeeded;
1242 $slot[$proc{$pid}->{slot}]->{node}->{losing_streak} = 0;
1243 $slot[$proc{$pid}->{slot}]->{node}->{hold_until} = 0;
1244 $slot[$proc{$pid}->{slot}]->{node}->{fail_count} = 0;
1245 push @jobstep_done, $jobstepid;
1246 Log ($jobstepid, "success in $elapsed seconds");
1248 $Jobstep->{exitcode} = $childstatus;
1249 $Jobstep->{finishtime} = time;
1250 $Jobstep->{'arvados_task'}->{finished_at} = strftime "%Y-%m-%dT%H:%M:%SZ", gmtime($Jobstep->{finishtime});
1251 $Jobstep->{'arvados_task'}->save;
1252 process_stderr ($jobstepid, $task_success);
1253 Log ($jobstepid, sprintf("task output (%d bytes): %s",
1254 length($Jobstep->{'arvados_task'}->{output}),
1255 $Jobstep->{'arvados_task'}->{output}));
1257 close $reader{$jobstepid};
1258 delete $reader{$jobstepid};
1259 delete $slot[$proc{$pid}->{slot}]->{pid};
1260 push @freeslot, $proc{$pid}->{slot};
1263 if ($task_success) {
1265 my $newtask_list = [];
1266 my $newtask_results;
1268 $newtask_results = api_call(
1271 'created_by_job_task_uuid' => $Jobstep->{'arvados_task'}->{uuid}
1273 'order' => 'qsequence',
1274 'offset' => scalar(@$newtask_list),
1276 push(@$newtask_list, @{$newtask_results->{items}});
1277 } while (@{$newtask_results->{items}});
1278 foreach my $arvados_task (@$newtask_list) {
1280 'level' => $arvados_task->{'sequence'},
1282 'arvados_task' => $arvados_task
1284 push @jobstep, $jobstep;
1285 push @jobstep_todo, $#jobstep;
1289 $progress_is_dirty = 1;
1293 sub check_refresh_wanted
1295 my @stat = stat $ENV{"CRUNCH_REFRESH_TRIGGER"};
1296 if (@stat && $stat[9] > $latest_refresh) {
1297 $latest_refresh = scalar time;
1298 my $Job2 = api_call("jobs/get", uuid => $jobspec);
1299 for my $attr ('cancelled_at',
1300 'cancelled_by_user_uuid',
1301 'cancelled_by_client_uuid',
1303 $Job->{$attr} = $Job2->{$attr};
1305 if ($Job->{'state'} ne "Running") {
1306 if ($Job->{'state'} eq "Cancelled") {
1307 Log (undef, "Job cancelled at " . $Job->{'cancelled_at'} . " by user " . $Job->{'cancelled_by_user_uuid'});
1309 Log (undef, "Job state unexpectedly changed to " . $Job->{'state'});
1312 $main::please_freeze = 1;
1319 my $last_squeue_check = $squeue_checked;
1321 # Do not call `squeue` or check the kill list more than once every
1323 return if $last_squeue_check > time - 15;
1324 $squeue_checked = time;
1326 # Look for children from which we haven't received stderr data since
1327 # the last squeue check. If no such children exist, all procs are
1328 # alive and there's no need to even look at squeue.
1330 # As long as the crunchstat poll interval (10s) is shorter than the
1331 # squeue check interval (15s) this should make the squeue check an
1333 my $silent_procs = 0;
1334 for my $jobstep (values %proc)
1336 if ($jobstep->{stderr_at} < $last_squeue_check)
1341 return if $silent_procs == 0;
1343 # use killem() on procs whose killtime is reached
1344 while (my ($pid, $jobstep) = each %proc)
1346 if (exists $jobstep->{killtime}
1347 && $jobstep->{killtime} <= time
1348 && $jobstep->{stderr_at} < $last_squeue_check)
1351 if ($jobstep->{stderr_at}) {
1352 $sincewhen = " in last " . (time - $jobstep->{stderr_at}) . "s";
1354 Log($jobstep->{jobstep}, "killing orphaned srun process $pid (task not in slurm queue, no stderr received$sincewhen)");
1361 # here is an opportunity to check for mysterious problems with local procs
1365 # Get a list of steps still running. Note: squeue(1) says --steps
1366 # selects a format (which we override anyway) and allows us to
1367 # specify which steps we're interested in (which we don't).
1368 # Importantly, it also changes the meaning of %j from "job name" to
1369 # "step name" and (although this isn't mentioned explicitly in the
1370 # docs) switches from "one line per job" mode to "one line per step"
1371 # mode. Without it, we'd just get a list of one job, instead of a
1373 my @squeue = `squeue --jobs=\Q$ENV{SLURM_JOB_ID}\E --steps --format='%j' --noheader`;
1376 Log(undef, "warning: squeue exit status $? ($!)");
1381 # which of my jobsteps are running, according to squeue?
1383 for my $jobstepname (@squeue)
1385 $ok{$jobstepname} = 1;
1388 # Check for child procs >60s old and not mentioned by squeue.
1389 while (my ($pid, $jobstep) = each %proc)
1391 if ($jobstep->{time} < time - 60
1392 && $jobstep->{jobstepname}
1393 && !exists $ok{$jobstep->{jobstepname}}
1394 && !exists $jobstep->{killtime})
1396 # According to slurm, this task has ended (successfully or not)
1397 # -- but our srun child hasn't exited. First we must wait (30
1398 # seconds) in case this is just a race between communication
1399 # channels. Then, if our srun child process still hasn't
1400 # terminated, we'll conclude some slurm communication
1401 # error/delay has caused the task to die without notifying srun,
1402 # and we'll kill srun ourselves.
1403 $jobstep->{killtime} = time + 30;
1404 Log($jobstep->{jobstep}, "notice: task is not in slurm queue but srun process $pid has not exited");
1410 sub release_allocation
1414 Log (undef, "release job allocation");
1415 system "scancel $ENV{SLURM_JOB_ID}";
1423 foreach my $job (keys %reader)
1426 while (0 < sysread ($reader{$job}, $buf, 8192))
1428 print STDERR $buf if $ENV{CRUNCH_DEBUG};
1429 $jobstep[$job]->{stderr_at} = time;
1430 $jobstep[$job]->{stderr} .= $buf;
1431 preprocess_stderr ($job);
1432 if (length ($jobstep[$job]->{stderr}) > 16384)
1434 substr ($jobstep[$job]->{stderr}, 0, 8192) = "";
1443 sub preprocess_stderr
1447 while ($jobstep[$job]->{stderr} =~ /^(.*?)\n/) {
1449 substr $jobstep[$job]->{stderr}, 0, 1+length($line), "";
1450 Log ($job, "stderr $line");
1451 if ($line =~ /srun: error: (SLURM job $ENV{SLURM_JOB_ID} has expired|Unable to confirm allocation for job $ENV{SLURM_JOB_ID})/) {
1453 $main::please_freeze = 1;
1455 elsif ($line =~ /srun: error: Node failure on/) {
1456 my $job_slot_index = $jobstep[$job]->{slotindex};
1457 $slot[$job_slot_index]->{node}->{fail_count}++;
1458 $jobstep[$job]->{tempfail} = 1;
1459 ban_node_by_slot($job_slot_index);
1461 elsif ($line =~ /srun: error: (Unable to create job step|.*: Communication connection failure)/) {
1462 $jobstep[$job]->{tempfail} = 1;
1463 ban_node_by_slot($jobstep[$job]->{slotindex});
1465 elsif ($line =~ /arvados\.errors\.Keep/) {
1466 $jobstep[$job]->{tempfail} = 1;
1475 my $task_success = shift;
1476 preprocess_stderr ($job);
1479 Log ($job, "stderr $_");
1480 } split ("\n", $jobstep[$job]->{stderr});
1487 if (!open($keep, "-|", "arv-get", "--retries", retry_count(), $hash)) {
1488 Log(undef, "fetch_block run error from arv-get $hash: $!");
1491 my $output_block = "";
1494 my $bytes = sysread($keep, $buf, 1024 * 1024);
1495 if (!defined $bytes) {
1496 Log(undef, "fetch_block read error from arv-get: $!");
1497 $output_block = undef;
1499 } elsif ($bytes == 0) {
1500 # sysread returns 0 at the end of the pipe.
1503 # some bytes were read into buf.
1504 $output_block .= $buf;
1509 Log(undef, "fetch_block arv-get exited " . exit_status_s($?));
1510 $output_block = undef;
1512 return $output_block;
1515 # Create a collection by concatenating the output of all tasks (each
1516 # task's output is either a manifest fragment, a locator for a
1517 # manifest fragment stored in Keep, or nothing at all). Return the
1518 # portable_data_hash of the new collection.
1519 sub create_output_collection
1521 Log (undef, "collate");
1523 my ($child_out, $child_in);
1524 my $pid = open2($child_out, $child_in, 'python', '-c', q{
1527 print (arvados.api("v1").collections().
1528 create(body={"manifest_text": sys.stdin.read()}).
1529 execute(num_retries=int(sys.argv[1]))["portable_data_hash"])
1533 my $manifest_size = 0;
1537 my $output = $_->{'arvados_task'}->{output};
1538 next if (!defined($output));
1540 if ($output =~ /^[0-9a-f]{32}(\+\S+)*$/) {
1541 $next_write = fetch_block($output);
1543 $next_write = $output;
1545 if (defined($next_write)) {
1546 if (!defined(syswrite($child_in, $next_write))) {
1547 # There's been an error writing. Stop the loop.
1548 # We'll log details about the exit code later.
1551 $manifest_size += length($next_write);
1554 my $uuid = $_->{'arvados_task'}->{'uuid'};
1555 Log (undef, "Error retrieving '$output' output by task $task_idx ($uuid)");
1560 Log(undef, "collated output manifest text to send to API server is $manifest_size bytes with access tokens");
1563 my $s = IO::Select->new($child_out);
1564 if ($s->can_read(120)) {
1565 sysread($child_out, $joboutput, 1024 * 1024);
1568 Log(undef, "output collection creation exited " . exit_status_s($?));
1574 Log (undef, "timed out while creating output collection");
1575 foreach my $signal (2, 2, 2, 15, 15, 9) {
1576 kill($signal, $pid);
1577 last if waitpid($pid, WNOHANG) == -1;
1586 # Calls create_output_collection, logs the result, and returns it.
1587 # If that was successful, save that as the output in the job record.
1588 sub save_output_collection {
1589 my $collated_output = create_output_collection();
1591 if (!$collated_output) {
1592 Log(undef, "Failed to write output collection");
1595 Log(undef, "job output $collated_output");
1596 $Job->update_attributes('output' => $collated_output);
1598 return $collated_output;
1605 my $sig = 2; # SIGINT first
1606 if (exists $proc{$_}->{"sent_$sig"} &&
1607 time - $proc{$_}->{"sent_$sig"} > 4)
1609 $sig = 15; # SIGTERM if SIGINT doesn't work
1611 if (exists $proc{$_}->{"sent_$sig"} &&
1612 time - $proc{$_}->{"sent_$sig"} > 4)
1614 $sig = 9; # SIGKILL if SIGTERM doesn't work
1616 if (!exists $proc{$_}->{"sent_$sig"})
1618 Log ($proc{$_}->{jobstep}, "sending 2x signal $sig to pid $_");
1620 select (undef, undef, undef, 0.1);
1623 kill $sig, $_; # srun wants two SIGINT to really interrupt
1625 $proc{$_}->{"sent_$sig"} = time;
1626 $proc{$_}->{"killedafter"} = time - $proc{$_}->{"time"};
1636 vec($bits,fileno($_),1) = 1;
1642 # Send log output to Keep via arv-put.
1644 # $log_pipe_in and $log_pipe_out are the input and output filehandles to the arv-put pipe.
1645 # $log_pipe_out_buf is a string containing all output read from arv-put so far.
1646 # $log_pipe_out_select is an IO::Select object around $log_pipe_out.
1647 # $log_pipe_pid is the pid of the arv-put subprocess.
1649 # The only functions that should access these variables directly are:
1651 # log_writer_start($logfilename)
1652 # Starts an arv-put pipe, reading data on stdin and writing it to
1653 # a $logfilename file in an output collection.
1655 # log_writer_read_output([$timeout])
1656 # Read output from $log_pipe_out and append it to $log_pipe_out_buf.
1657 # Passes $timeout to the select() call, with a default of 0.01.
1658 # Returns the result of the last read() call on $log_pipe_out, or
1659 # -1 if read() wasn't called because select() timed out.
1660 # Only other log_writer_* functions should need to call this.
1662 # log_writer_send($txt)
1663 # Writes $txt to the output log collection.
1665 # log_writer_finish()
1666 # Closes the arv-put pipe and returns the output that it produces.
1668 # log_writer_is_active()
1669 # Returns a true value if there is currently a live arv-put
1670 # process, false otherwise.
1672 my ($log_pipe_in, $log_pipe_out, $log_pipe_out_buf, $log_pipe_out_select,
1675 sub log_writer_start($)
1677 my $logfilename = shift;
1678 $log_pipe_pid = open2($log_pipe_out, $log_pipe_in,
1682 '--filename', $logfilename,
1684 $log_pipe_out_buf = "";
1685 $log_pipe_out_select = IO::Select->new($log_pipe_out);
1688 sub log_writer_read_output {
1689 my $timeout = shift || 0.01;
1691 while ($read && $log_pipe_out_select->can_read($timeout)) {
1692 $read = read($log_pipe_out, $log_pipe_out_buf, 65536,
1693 length($log_pipe_out_buf));
1695 if (!defined($read)) {
1696 Log(undef, "error reading log manifest from arv-put: $!");
1701 sub log_writer_send($)
1704 print $log_pipe_in $txt;
1705 log_writer_read_output();
1708 sub log_writer_finish()
1710 return unless $log_pipe_pid;
1712 close($log_pipe_in);
1714 my $logger_failed = 0;
1715 my $read_result = log_writer_read_output(120);
1716 if ($read_result == -1) {
1717 $logger_failed = -1;
1718 Log (undef, "timed out reading from 'arv-put'");
1719 } elsif ($read_result != 0) {
1720 $logger_failed = -2;
1721 Log(undef, "failed to read arv-put log manifest to EOF");
1724 waitpid($log_pipe_pid, 0);
1726 $logger_failed ||= $?;
1727 Log(undef, "log_writer_finish: arv-put exited " . exit_status_s($?))
1730 close($log_pipe_out);
1731 my $arv_put_output = $logger_failed ? undef : $log_pipe_out_buf;
1732 $log_pipe_pid = $log_pipe_in = $log_pipe_out = $log_pipe_out_buf =
1733 $log_pipe_out_select = undef;
1735 return $arv_put_output;
1738 sub log_writer_is_active() {
1739 return $log_pipe_pid;
1742 sub Log # ($jobstep_id, $logmessage)
1744 if ($_[1] =~ /\n/) {
1745 for my $line (split (/\n/, $_[1])) {
1750 my $fh = select STDERR; $|=1; select $fh;
1751 my $message = sprintf ("%s %d %s %s", $job_id, $$, @_);
1752 $message =~ s{([^ -\176])}{"\\" . sprintf ("%03o", ord($1))}ge;
1755 if (log_writer_is_active() || -t STDERR) {
1756 my @gmtime = gmtime;
1757 $datetime = sprintf ("%04d-%02d-%02d_%02d:%02d:%02d",
1758 $gmtime[5]+1900, $gmtime[4]+1, @gmtime[3,2,1,0]);
1760 print STDERR ((-t STDERR) ? ($datetime." ".$message) : $message);
1762 if (log_writer_is_active()) {
1763 log_writer_send($datetime . " " . $message);
1770 my ($package, $file, $line) = caller;
1771 my $message = "@_ at $file line $line\n";
1772 Log (undef, $message);
1773 freeze() if @jobstep_todo;
1774 create_output_collection() if @jobstep_todo;
1784 if ($Job->{'state'} eq 'Cancelled') {
1785 $Job->update_attributes('finished_at' => scalar gmtime);
1787 $Job->update_attributes('state' => 'Failed');
1794 my $justcheckpoint = shift; # false if this will be the last meta saved
1795 return if $justcheckpoint; # checkpointing is not relevant post-Warehouse.pm
1796 return unless log_writer_is_active();
1797 my $log_manifest = log_writer_finish();
1798 return unless defined($log_manifest);
1801 my $prev_log_coll = api_call("collections/get", uuid => $Job->{log});
1802 $log_manifest = $prev_log_coll->{manifest_text} . $log_manifest;
1805 my $log_coll = api_call(
1806 "collections/create", ensure_unique_name => 1, collection => {
1807 manifest_text => $log_manifest,
1808 owner_uuid => $Job->{owner_uuid},
1809 name => sprintf("Log from %s job %s", $Job->{script}, $Job->{uuid}),
1811 Log(undef, "log collection is " . $log_coll->{portable_data_hash});
1812 $Job->update_attributes('log' => $log_coll->{portable_data_hash});
1816 sub freeze_if_want_freeze
1818 if ($main::please_freeze)
1820 release_allocation();
1823 # kill some srun procs before freeze+stop
1824 map { $proc{$_} = {} } @_;
1827 killem (keys %proc);
1828 select (undef, undef, undef, 0.1);
1830 while (($died = waitpid (-1, WNOHANG)) > 0)
1832 delete $proc{$died};
1837 create_output_collection();
1847 Log (undef, "Freeze not implemented");
1854 croak ("Thaw not implemented");
1870 $s =~ s{\\(.)}{$1 eq "n" ? "\n" : $1}ge;
1877 my $srunargs = shift;
1878 my $execargs = shift;
1879 my $opts = shift || {};
1881 my $args = $have_slurm ? [@$srunargs, @$execargs] : $execargs;
1883 $Data::Dumper::Terse = 1;
1884 $Data::Dumper::Indent = 0;
1885 my $show_cmd = Dumper($args);
1886 $show_cmd =~ s/(TOKEN\\*=)[^\s\']+/${1}[...]/g;
1887 $show_cmd =~ s/\n/ /g;
1888 if ($opts->{fork}) {
1889 Log(undef, "starting: $show_cmd");
1891 # This is a child process: parent is in charge of reading our
1892 # stderr and copying it to Log() if needed.
1893 warn "starting: $show_cmd\n";
1896 if (defined $stdin) {
1897 my $child = open STDIN, "-|";
1898 defined $child or die "no fork: $!";
1900 print $stdin or die $!;
1901 close STDOUT or die $!;
1906 return system (@$args) if $opts->{fork};
1909 warn "ENV size is ".length(join(" ",%ENV));
1910 die "exec failed: $!: @$args";
1914 sub ban_node_by_slot {
1915 # Don't start any new jobsteps on this node for 60 seconds
1917 $slot[$slotid]->{node}->{hold_until} = 60 + scalar time;
1918 $slot[$slotid]->{node}->{hold_count}++;
1919 Log (undef, "backing off node " . $slot[$slotid]->{node}->{name} . " for 60 seconds");
1924 my ($lockfile, $error_message) = @_;
1925 open L, ">", $lockfile or croak("$lockfile: $!");
1926 if (!flock L, LOCK_EX|LOCK_NB) {
1927 croak("Can't lock $lockfile: $error_message\n");
1931 sub find_docker_image {
1932 # Given a Keep locator, check to see if it contains a Docker image.
1933 # If so, return its stream name and Docker hash.
1934 # If not, return undef for both values.
1935 my $locator = shift;
1936 my ($streamname, $filename);
1937 my $image = api_call("collections/get", uuid => $locator);
1939 foreach my $line (split(/\n/, $image->{manifest_text})) {
1940 my @tokens = split(/\s+/, $line);
1942 $streamname = shift(@tokens);
1943 foreach my $filedata (grep(/^\d+:\d+:/, @tokens)) {
1944 if (defined($filename)) {
1945 return (undef, undef); # More than one file in the Collection.
1947 $filename = (split(/:/, $filedata, 3))[2];
1952 if (defined($filename) and ($filename =~ /^([0-9A-Fa-f]{64})\.tar$/)) {
1953 return ($streamname, $1);
1955 return (undef, undef);
1960 # Calculate the number of times an operation should be retried,
1961 # assuming exponential backoff, and that we're willing to retry as
1962 # long as tasks have been running. Enforce a minimum of 3 retries.
1963 my ($starttime, $endtime, $timediff, $retries);
1965 $starttime = $jobstep[0]->{starttime};
1966 $endtime = $jobstep[-1]->{finishtime};
1968 if (!defined($starttime)) {
1970 } elsif (!defined($endtime)) {
1971 $timediff = time - $starttime;
1973 $timediff = ($endtime - $starttime) - (time - $endtime);
1975 if ($timediff > 0) {
1976 $retries = int(log($timediff) / log(2));
1978 $retries = 1; # Use the minimum.
1980 return ($retries > 3) ? $retries : 3;
1984 # Pass in two function references.
1985 # This method will be called with the remaining arguments.
1986 # If it dies, retry it with exponential backoff until it succeeds,
1987 # or until the current retry_count is exhausted. After each failure
1988 # that can be retried, the second function will be called with
1989 # the current try count (0-based), next try time, and error message.
1990 my $operation = shift;
1991 my $retry_callback = shift;
1992 my $retries = retry_count();
1993 foreach my $try_count (0..$retries) {
1994 my $next_try = time + (2 ** $try_count);
1995 my $result = eval { $operation->(@_); };
1998 } elsif ($try_count < $retries) {
1999 $retry_callback->($try_count, $next_try, $@);
2000 my $sleep_time = $next_try - time;
2001 sleep($sleep_time) if ($sleep_time > 0);
2004 # Ensure the error message ends in a newline, so Perl doesn't add
2005 # retry_op's line number to it.
2011 # Pass in a /-separated API method name, and arguments for it.
2012 # This function will call that method, retrying as needed until
2013 # the current retry_count is exhausted, with a log on the first failure.
2014 my $method_name = shift;
2015 my $log_api_retry = sub {
2016 my ($try_count, $next_try_at, $errmsg) = @_;
2017 $errmsg =~ s/\s*\bat \Q$0\E line \d+\.?\s*//;
2018 $errmsg =~ s/\s/ /g;
2019 $errmsg =~ s/\s+$//;
2021 if ($next_try_at < time) {
2022 $retry_msg = "Retrying.";
2024 my $next_try_fmt = strftime "%Y-%m-%dT%H:%M:%SZ", gmtime($next_try_at);
2025 $retry_msg = "Retrying at $next_try_fmt.";
2027 Log(undef, "API method $method_name failed: $errmsg. $retry_msg");
2030 foreach my $key (split(/\//, $method_name)) {
2031 $method = $method->{$key};
2033 return retry_op(sub { $method->execute(@_); }, $log_api_retry, @_);
2037 # Given a $?, return a human-readable exit code string like "0" or
2038 # "1" or "0 with signal 1" or "1 with signal 11".
2039 my $exitcode = shift;
2040 my $s = $exitcode >> 8;
2041 if ($exitcode & 0x7f) {
2042 $s .= " with signal " . ($exitcode & 0x7f);
2044 if ($exitcode & 0x80) {
2045 $s .= " with core dump";
2050 sub handle_readall {
2051 # Pass in a glob reference to a file handle.
2052 # Read all its contents and return them as a string.
2053 my $fh_glob_ref = shift;
2055 return <$fh_glob_ref>;
2058 sub tar_filename_n {
2060 return sprintf("%s/git.%s.%d.tar", $ENV{CRUNCH_TMP}, $job_id, $n);
2063 sub add_git_archive {
2064 # Pass in a git archive command as a string or list, a la system().
2065 # This method will save its output to be included in the archive sent to the
2069 if (!open(GIT_ARCHIVE, ">", tar_filename_n($git_tar_count))) {
2070 croak("Failed to save git archive: $!");
2072 my $git_pid = open2(">&GIT_ARCHIVE", $git_input, @_);
2074 waitpid($git_pid, 0);
2077 croak("Failed to save git archive: git exited " . exit_status_s($?));
2081 sub combined_git_archive {
2082 # Combine all saved tar archives into a single archive, then return its
2083 # contents in a string. Return undef if no archives have been saved.
2084 if ($git_tar_count < 1) {
2087 my $base_tar_name = tar_filename_n(1);
2088 foreach my $tar_to_append (map { tar_filename_n($_); } (2..$git_tar_count)) {
2089 my $tar_exit = system("tar", "-Af", $base_tar_name, $tar_to_append);
2090 if ($tar_exit != 0) {
2091 croak("Error preparing build archive: tar -A exited " .
2092 exit_status_s($tar_exit));
2095 if (!open(GIT_TAR, "<", $base_tar_name)) {
2096 croak("Could not open build archive: $!");
2098 my $tar_contents = handle_readall(\*GIT_TAR);
2100 return $tar_contents;
2103 sub set_nonblocking {
2105 my $flags = fcntl ($fh, F_GETFL, 0) or croak ($!);
2106 fcntl ($fh, F_SETFL, $flags | O_NONBLOCK) or croak ($!);
2112 # This is crunch-job's internal dispatch script. crunch-job running on the API
2113 # server invokes this script on individual compute nodes, or localhost if we're
2114 # running a job locally. It gets called in two modes:
2116 # * No arguments: Installation mode. Read a tar archive from the DATA
2117 # file handle; it includes the Crunch script's source code, and
2118 # maybe SDKs as well. Those should be installed in the proper
2119 # locations. This runs outside of any Docker container, so don't try to
2120 # introspect Crunch's runtime environment.
2122 # * With arguments: Crunch script run mode. This script should set up the
2123 # environment, then run the command specified in the arguments. This runs
2124 # inside any Docker container.
2127 use File::Path qw( make_path remove_tree );
2128 use POSIX qw(getcwd);
2130 use constant TASK_TEMPFAIL => 111;
2132 # Map SDK subdirectories to the path environments they belong to.
2133 my %SDK_ENVVARS = ("perl/lib" => "PERLLIB", "ruby/lib" => "RUBYLIB");
2135 my $destdir = $ENV{"CRUNCH_SRC"};
2136 my $archive_hash = $ENV{"CRUNCH_GIT_ARCHIVE_HASH"};
2137 my $repo = $ENV{"CRUNCH_SRC_URL"};
2138 my $install_dir = $ENV{"CRUNCH_INSTALL"} || (getcwd() . "/opt");
2139 my $job_work = $ENV{"JOB_WORK"};
2140 my $task_work = $ENV{"TASK_WORK"};
2142 open(STDOUT_ORIG, ">&", STDOUT);
2143 open(STDERR_ORIG, ">&", STDERR);
2145 for my $dir ($destdir, $job_work, $task_work) {
2148 -e $dir or die "Failed to create temporary directory ($dir): $!";
2153 remove_tree($task_work, {keep_root => 1});
2156 ### Crunch script run mode
2158 # We want to do routine logging during task 0 only. This gives the user
2159 # the information they need, but avoids repeating the information for every
2162 if ($ENV{TASK_SEQUENCE} eq "0") {
2165 printf STDERR_ORIG "[Crunch] $msg\n", @_;
2171 my $python_src = "$install_dir/python";
2172 my $venv_dir = "$job_work/.arvados.venv";
2173 my $venv_built = -e "$venv_dir/bin/activate";
2174 if ((!$venv_built) and (-d $python_src) and can_run("virtualenv")) {
2175 shell_or_die(undef, "virtualenv", "--quiet", "--system-site-packages",
2176 "--python=python2.7", $venv_dir);
2177 shell_or_die(TASK_TEMPFAIL, "$venv_dir/bin/pip", "--quiet", "install", "-I", $python_src);
2179 $Log->("Built Python SDK virtualenv");
2182 my @pysdk_version_cmd = ("python", "-c",
2183 "from pkg_resources import get_distribution as get; print get('arvados-python-client').version");
2185 $Log->("Running in Python SDK virtualenv");
2186 @pysdk_version_cmd = ();
2187 my $orig_argv = join(" ", map { quotemeta($_); } @ARGV);
2188 @ARGV = ("/bin/sh", "-ec",
2189 ". \Q$venv_dir/bin/activate\E; exec $orig_argv");
2190 } elsif (-d $python_src) {
2191 $Log->("Warning: virtualenv not found inside Docker container default " .
2192 "\$PATH. Can't install Python SDK.");
2195 if (@pysdk_version_cmd) {
2196 open(my $pysdk_version_pipe, "-|", @pysdk_version_cmd);
2197 my $pysdk_version = <$pysdk_version_pipe>;
2198 close($pysdk_version_pipe);
2200 chomp($pysdk_version);
2201 $Log->("Using Arvados SDK version $pysdk_version");
2203 # A lot could've gone wrong here, but pretty much all of it means that
2204 # Python won't be able to load the Arvados SDK.
2205 $Log->("Warning: Arvados SDK not found");
2209 while (my ($sdk_dir, $sdk_envkey) = each(%SDK_ENVVARS)) {
2210 my $sdk_path = "$install_dir/$sdk_dir";
2212 if ($ENV{$sdk_envkey}) {
2213 $ENV{$sdk_envkey} = "$sdk_path:" . $ENV{$sdk_envkey};
2215 $ENV{$sdk_envkey} = $sdk_path;
2217 $Log->("Arvados SDK added to %s", $sdk_envkey);
2222 die "Cannot exec `@ARGV`: $!";
2225 ### Installation mode
2226 open L, ">", "$destdir.lock" or die "$destdir.lock: $!";
2228 if (readlink ("$destdir.archive_hash") eq $archive_hash && -d $destdir) {
2229 # This exact git archive (source + arvados sdk) is already installed
2230 # here, so there's no need to reinstall it.
2232 # We must consume our DATA section, though: otherwise the process
2233 # feeding it to us will get SIGPIPE.
2235 while (read(DATA, $buf, 65536)) { }
2240 unlink "$destdir.archive_hash";
2244 # Ignore SIGPIPE: we check retval of close() instead. See perlipc(1).
2245 local $SIG{PIPE} = "IGNORE";
2246 warn "Extracting archive: $archive_hash\n";
2247 # --ignore-zeros is necessary sometimes: depending on how much NUL
2248 # padding tar -A put on our combined archive (which in turn depends
2249 # on the length of the component archives) tar without
2250 # --ignore-zeros will exit before consuming stdin and cause close()
2251 # to fail on the resulting SIGPIPE.
2252 if (!open(TARX, "|-", "tar", "--ignore-zeros", "-xC", $destdir)) {
2253 die "Error launching 'tar -xC $destdir': $!";
2255 # If we send too much data to tar in one write (> 4-5 MiB), it stops, and we
2256 # get SIGPIPE. We must feed it data incrementally.
2258 while (read(DATA, $tar_input, 65536)) {
2259 print TARX $tar_input;
2262 die "'tar -xC $destdir' exited $?: $!";
2268 my $sdk_root = "$destdir/.arvados.sdk/sdk";
2270 foreach my $sdk_lang (("python",
2271 map { (split /\//, $_, 2)[0]; } keys(%SDK_ENVVARS))) {
2272 if (-d "$sdk_root/$sdk_lang") {
2273 if (!rename("$sdk_root/$sdk_lang", "$install_dir/$sdk_lang")) {
2274 die "Failed to install $sdk_lang SDK: $!";
2280 my $python_dir = "$install_dir/python";
2281 if ((-d $python_dir) and can_run("python2.7")) {
2282 open(my $egg_info_pipe, "-|",
2283 "python2.7 \Q$python_dir/setup.py\E egg_info 2>&1 >/dev/null");
2284 my @egg_info_errors = <$egg_info_pipe>;
2285 close($egg_info_pipe);
2288 if (@egg_info_errors and (($egg_info_errors[-1] =~ /\bgit\b/) or ($egg_info_errors[-1] =~ /\[Errno 2\]/))) {
2289 # egg_info apparently failed because it couldn't ask git for a build tag.
2290 # Specify no build tag.
2291 open(my $pysdk_cfg, ">>", "$python_dir/setup.cfg");
2292 print $pysdk_cfg "\n[egg_info]\ntag_build =\n";
2295 my $egg_info_exit = $? >> 8;
2296 foreach my $errline (@egg_info_errors) {
2299 warn "python setup.py egg_info failed: exit $egg_info_exit";
2300 exit ($egg_info_exit || 1);
2305 # Hide messages from the install script (unless it fails: shell_or_die
2306 # will show $destdir.log in that case).
2307 open(STDOUT, ">>", "$destdir.log");
2308 open(STDERR, ">&", STDOUT);
2310 if (-e "$destdir/crunch_scripts/install") {
2311 shell_or_die (undef, "$destdir/crunch_scripts/install", $install_dir);
2312 } elsif (!-e "./install.sh" && -e "./tests/autotests.sh") {
2314 shell_or_die (undef, "./tests/autotests.sh", $install_dir);
2315 } elsif (-e "./install.sh") {
2316 shell_or_die (undef, "./install.sh", $install_dir);
2319 if ($archive_hash) {
2320 unlink "$destdir.archive_hash.new";
2321 symlink ($archive_hash, "$destdir.archive_hash.new") or die "$destdir.archive_hash.new: $!";
2322 rename ("$destdir.archive_hash.new", "$destdir.archive_hash") or die "$destdir.archive_hash: $!";
2328 my $command_name = shift;
2329 open(my $which, "-|", "which", $command_name);
2330 while (<$which>) { }
2337 my $exitcode = shift;
2339 if ($ENV{"DEBUG"}) {
2340 print STDERR "@_\n";
2342 if (system (@_) != 0) {
2345 my $exitstatus = sprintf("exit %d signal %d", $code >> 8, $code & 0x7f);
2346 open STDERR, ">&STDERR_ORIG";
2347 system ("cat $destdir.log >&2");
2348 warn "@_ failed ($err): $exitstatus";
2349 if (defined($exitcode)) {
2353 exit (($code >> 8) || 1);