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How to use check_atomic_group_create_job method in autotest

Best Python code snippet using autotest_python

rpc_utils.py

Source:rpc_utils.py

...195              {'' : 'You cannot abort part of a synchronous job execution '196                    '(%d/%s), %d included, %d expected'197                    % (queue_entry.job.id, queue_entry.execution_subdir,198                       execution_count, queue_entry.job.synch_count)})199def check_atomic_group_create_job(synch_count, host_objects, metahost_objects,200                                  dependencies, atomic_group, labels_by_name):201    """202    Attempt to reject create_job requests with an atomic group that203    will be impossible to schedule.  The checks are not perfect but204    should catch the most obvious issues.205    @param synch_count - The job's minimum synch count.206    @param host_objects - A list of models.Host instances.207    @param metahost_objects - A list of models.Label instances.208    @param dependencies - A list of job dependency label names.209    @param atomic_group - The models.AtomicGroup instance.210    @param labels_by_name - A dictionary mapping label names to models.Label211            instance.  Used to look up instances for dependencies.212    @raises model_logic.ValidationError - When an issue is found.213    """214    # If specific host objects were supplied with an atomic group, verify215    # that there are enough to satisfy the synch_count.216    minimum_required = synch_count or 1217    if (host_objects and not metahost_objects and218        len(host_objects) < minimum_required):219        raise model_logic.ValidationError(220                {'hosts':221                 'only %d hosts provided for job with synch_count = %d' %222                 (len(host_objects), synch_count)})223    # Check that the atomic group has a hope of running this job224    # given any supplied metahosts and dependancies that may limit.225    # Get a set of hostnames in the atomic group.226    possible_hosts = set()227    for label in atomic_group.label_set.all():228        possible_hosts.update(h.hostname for h in label.host_set.all())229    # Filter out hosts that don't match all of the job dependency labels.230    for label_name in set(dependencies):231        label = labels_by_name[label_name]232        hosts_in_label = (h.hostname for h in label.host_set.all())233        possible_hosts.intersection_update(hosts_in_label)234    if not host_objects and not metahost_objects:235        # No hosts or metahosts are required to queue an atomic group Job.236        # However, if they are given, we respect them below.237        host_set = possible_hosts238    else:239        host_set = set(host.hostname for host in host_objects)240        unusable_host_set = host_set.difference(possible_hosts)241        if unusable_host_set:242            raise model_logic.ValidationError(243                {'hosts': 'Hosts "%s" are not in Atomic Group "%s"' %244                 (', '.join(sorted(unusable_host_set)), atomic_group.name)})245    # Lookup hosts provided by each meta host and merge them into the246    # host_set for final counting.247    for meta_host in metahost_objects:248        meta_possible = possible_hosts.copy()249        hosts_in_meta_host = (h.hostname for h in meta_host.host_set.all())250        meta_possible.intersection_update(hosts_in_meta_host)251        # Count all hosts that this meta_host will provide.252        host_set.update(meta_possible)253    if len(host_set) < minimum_required:254        raise model_logic.ValidationError(255                {'atomic_group_name':256                 'Insufficient hosts in Atomic Group "%s" with the'257                 ' supplied dependencies and meta_hosts.' %258                 (atomic_group.name,)})259def get_motd():260    dirname = os.path.dirname(__file__)261    filename = os.path.join(dirname, "..", "..", "motd.txt")262    text = ''263    try:264        fp = open(filename, "r")265        try:266            text = fp.read()267        finally:268            fp.close()269    except:270        pass271    return text272def _get_metahost_counts(metahost_objects):273    metahost_counts = {}274    for metahost in metahost_objects:275        metahost_counts.setdefault(metahost, 0)276        metahost_counts[metahost] += 1277    return metahost_counts278def get_job_info(job, preserve_metahosts=False, queue_entry_filter_data=None):279    hosts = []280    one_time_hosts = []281    meta_hosts = []282    atomic_group = None283    queue_entries = job.hostqueueentry_set.all()284    if queue_entry_filter_data:285        queue_entries = models.HostQueueEntry.query_objects(286            queue_entry_filter_data, initial_query=queue_entries)287    for queue_entry in queue_entries:288        if (queue_entry.host and (preserve_metahosts or289                                  not queue_entry.meta_host)):290            if queue_entry.deleted:291                continue292            if queue_entry.host.invalid:293                one_time_hosts.append(queue_entry.host)294            else:295                hosts.append(queue_entry.host)296        else:297            meta_hosts.append(queue_entry.meta_host)298        if atomic_group is None:299            if queue_entry.atomic_group is not None:300                atomic_group = queue_entry.atomic_group301        else:302            assert atomic_group.name == queue_entry.atomic_group.name, (303                    'DB inconsistency.  HostQueueEntries with multiple atomic'304                    ' groups on job %s: %s != %s' % (305                        id, atomic_group.name, queue_entry.atomic_group.name))306    meta_host_counts = _get_metahost_counts(meta_hosts)307    info = dict(dependencies=[label.name for label308                              in job.dependency_labels.all()],309                hosts=hosts,310                meta_hosts=meta_hosts,311                meta_host_counts=meta_host_counts,312                one_time_hosts=one_time_hosts,313                atomic_group=atomic_group)314    return info315def create_new_job(owner, options, host_objects, metahost_objects,316                   atomic_group=None):317    labels_by_name = dict((label.name, label)318                          for label in models.Label.objects.all())319    all_host_objects = host_objects + metahost_objects320    metahost_counts = _get_metahost_counts(metahost_objects)321    dependencies = options.get('dependencies', [])322    synch_count = options.get('synch_count')323    # check that each metahost request has enough hosts under the label324    for label, requested_count in metahost_counts.iteritems():325        available_count = label.host_set.count()326        if requested_count > available_count:327            error = ("You have requested %d %s's, but there are only %d."328                     % (requested_count, label.name, available_count))329            raise model_logic.ValidationError({'meta_hosts' : error})330    if atomic_group:331        check_atomic_group_create_job(332                synch_count, host_objects, metahost_objects,333                dependencies, atomic_group, labels_by_name)334    else:335        if synch_count is not None and synch_count > len(all_host_objects):336            raise model_logic.ValidationError(337                    {'hosts':338                     'only %d hosts provided for job with synch_count = %d' %339                     (len(all_host_objects), synch_count)})340        atomic_hosts = models.Host.objects.filter(341                id__in=[host.id for host in host_objects],342                labels__atomic_group=True)343        unusable_host_names = [host.hostname for host in atomic_hosts]344        if unusable_host_names:345            raise model_logic.ValidationError(...

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