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ReadOnlySchedulerImpl.java
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ReadOnlySchedulerImpl.java
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/**
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.aurora.scheduler.thrift;
import java.util.Collection;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import javax.annotation.Nullable;
import javax.inject.Inject;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Function;
import com.google.common.base.Functions;
import com.google.common.base.Joiner;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.collect.FluentIterable;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;
import com.google.common.collect.Sets;
import org.apache.aurora.GuavaUtils;
import org.apache.aurora.common.base.MorePreconditions;
import org.apache.aurora.gen.ConfigGroup;
import org.apache.aurora.gen.ConfigSummary;
import org.apache.aurora.gen.ConfigSummaryResult;
import org.apache.aurora.gen.GetJobUpdateDetailsResult;
import org.apache.aurora.gen.GetJobUpdateDiffResult;
import org.apache.aurora.gen.GetJobUpdateSummariesResult;
import org.apache.aurora.gen.GetJobsResult;
import org.apache.aurora.gen.GetPendingReasonResult;
import org.apache.aurora.gen.GetQuotaResult;
import org.apache.aurora.gen.GetTierConfigResult;
import org.apache.aurora.gen.JobConfiguration;
import org.apache.aurora.gen.JobKey;
import org.apache.aurora.gen.JobSummary;
import org.apache.aurora.gen.JobSummaryResult;
import org.apache.aurora.gen.JobUpdateKey;
import org.apache.aurora.gen.JobUpdateQuery;
import org.apache.aurora.gen.JobUpdateRequest;
import org.apache.aurora.gen.PendingReason;
import org.apache.aurora.gen.PopulateJobResult;
import org.apache.aurora.gen.ReadOnlyScheduler;
import org.apache.aurora.gen.Response;
import org.apache.aurora.gen.Result;
import org.apache.aurora.gen.RoleSummary;
import org.apache.aurora.gen.RoleSummaryResult;
import org.apache.aurora.gen.ScheduleStatus;
import org.apache.aurora.gen.ScheduleStatusResult;
import org.apache.aurora.gen.ScheduledTask;
import org.apache.aurora.gen.TaskConfig;
import org.apache.aurora.gen.TaskQuery;
import org.apache.aurora.gen.TierConfig;
import org.apache.aurora.scheduler.TierManager;
import org.apache.aurora.scheduler.base.JobKeys;
import org.apache.aurora.scheduler.base.Jobs;
import org.apache.aurora.scheduler.base.Query;
import org.apache.aurora.scheduler.base.TaskGroupKey;
import org.apache.aurora.scheduler.base.Tasks;
import org.apache.aurora.scheduler.configuration.ConfigurationManager;
import org.apache.aurora.scheduler.configuration.ConfigurationManager.TaskDescriptionException;
import org.apache.aurora.scheduler.configuration.SanitizedConfiguration;
import org.apache.aurora.scheduler.cron.CronPredictor;
import org.apache.aurora.scheduler.cron.CrontabEntry;
import org.apache.aurora.scheduler.filter.SchedulingFilter.Veto;
import org.apache.aurora.scheduler.metadata.NearestFit;
import org.apache.aurora.scheduler.quota.QuotaInfo;
import org.apache.aurora.scheduler.quota.QuotaManager;
import org.apache.aurora.scheduler.storage.Storage;
import org.apache.aurora.scheduler.storage.entities.IAssignedTask;
import org.apache.aurora.scheduler.storage.entities.IJobConfiguration;
import org.apache.aurora.scheduler.storage.entities.IJobKey;
import org.apache.aurora.scheduler.storage.entities.IJobUpdateDetails;
import org.apache.aurora.scheduler.storage.entities.IJobUpdateKey;
import org.apache.aurora.scheduler.storage.entities.IJobUpdateQuery;
import org.apache.aurora.scheduler.storage.entities.IJobUpdateRequest;
import org.apache.aurora.scheduler.storage.entities.IJobUpdateSummary;
import org.apache.aurora.scheduler.storage.entities.IRange;
import org.apache.aurora.scheduler.storage.entities.IScheduledTask;
import org.apache.aurora.scheduler.storage.entities.ITaskConfig;
import org.apache.aurora.scheduler.updater.JobDiff;
import org.apache.thrift.TException;
import static java.util.Objects.requireNonNull;
import static org.apache.aurora.gen.ResponseCode.INVALID_REQUEST;
import static org.apache.aurora.scheduler.base.Numbers.convertRanges;
import static org.apache.aurora.scheduler.base.Numbers.toRanges;
import static org.apache.aurora.scheduler.resources.ResourceManager.aggregateFromBag;
import static org.apache.aurora.scheduler.thrift.Responses.addMessage;
import static org.apache.aurora.scheduler.thrift.Responses.error;
import static org.apache.aurora.scheduler.thrift.Responses.invalidRequest;
import static org.apache.aurora.scheduler.thrift.Responses.ok;
class ReadOnlySchedulerImpl implements ReadOnlyScheduler.Iface {
private static final Function<Entry<ITaskConfig, Collection<Integer>>, ConfigGroup> TO_GROUP =
input -> new ConfigGroup()
.setConfig(input.getKey().newBuilder())
.setInstances(IRange.toBuildersSet(convertRanges(toRanges(input.getValue()))));
private final ConfigurationManager configurationManager;
private final Storage storage;
private final NearestFit nearestFit;
private final CronPredictor cronPredictor;
private final QuotaManager quotaManager;
private final TierManager tierManager;
@Inject
ReadOnlySchedulerImpl(
ConfigurationManager configurationManager,
Storage storage,
NearestFit nearestFit,
CronPredictor cronPredictor,
QuotaManager quotaManager,
TierManager tierManager) {
this.configurationManager = requireNonNull(configurationManager);
this.storage = requireNonNull(storage);
this.nearestFit = requireNonNull(nearestFit);
this.cronPredictor = requireNonNull(cronPredictor);
this.quotaManager = requireNonNull(quotaManager);
this.tierManager = requireNonNull(tierManager);
}
@Override
public Response populateJobConfig(JobConfiguration description) {
requireNonNull(description);
try {
ITaskConfig populatedTaskConfig = SanitizedConfiguration.fromUnsanitized(
configurationManager,
IJobConfiguration.build(description)).getJobConfig().getTaskConfig();
return ok(Result.populateJobResult(
new PopulateJobResult().setTaskConfig(populatedTaskConfig.newBuilder())));
} catch (TaskDescriptionException e) {
return invalidRequest("Invalid configuration: " + e.getMessage());
}
}
// TODO(William Farner): Provide status information about cron jobs here.
@Override
public Response getTasksStatus(TaskQuery query) {
return ok(Result.scheduleStatusResult(
new ScheduleStatusResult().setTasks(getTasks(query))));
}
@Override
public Response getTasksWithoutConfigs(TaskQuery query) {
List<ScheduledTask> tasks = Lists.transform(
getTasks(query),
task -> {
task.getAssignedTask().getTask().getExecutorConfig().unsetData();
return task;
});
return ok(Result.scheduleStatusResult(new ScheduleStatusResult().setTasks(tasks)));
}
@Override
public Response getPendingReason(TaskQuery query) throws TException {
requireNonNull(query);
if (query.isSetSlaveHosts() && !query.getSlaveHosts().isEmpty()) {
return invalidRequest(
"SlaveHosts are not supported in " + query.toString());
}
if (query.isSetStatuses() && !query.getStatuses().isEmpty()) {
return invalidRequest(
"Statuses is not supported in " + query.toString());
}
// Only PENDING tasks should be considered.
query.setStatuses(ImmutableSet.of(ScheduleStatus.PENDING));
Set<PendingReason> reasons = FluentIterable.from(getTasks(query))
.transform(scheduledTask -> {
TaskGroupKey groupKey = TaskGroupKey.from(
ITaskConfig.build(scheduledTask.getAssignedTask().getTask()));
String reason = Joiner.on(',').join(Iterables.transform(
nearestFit.getNearestFit(groupKey),
Veto::getReason));
return new PendingReason()
.setTaskId(scheduledTask.getAssignedTask().getTaskId())
.setReason(reason);
}).toSet();
return ok(Result.getPendingReasonResult(new GetPendingReasonResult(reasons)));
}
@Override
public Response getConfigSummary(JobKey job) throws TException {
IJobKey jobKey = JobKeys.assertValid(IJobKey.build(job));
Iterable<IAssignedTask> assignedTasks = Iterables.transform(
Storage.Util.fetchTasks(storage, Query.jobScoped(jobKey).active()),
IScheduledTask::getAssignedTask);
Map<Integer, ITaskConfig> tasksByInstance = Maps.transformValues(
Maps.uniqueIndex(assignedTasks, IAssignedTask::getInstanceId),
IAssignedTask::getTask);
Set<ConfigGroup> groups = instancesToConfigGroups(tasksByInstance);
return ok(Result.configSummaryResult(
new ConfigSummaryResult().setSummary(new ConfigSummary(job, groups))));
}
@Override
public Response getRoleSummary() {
Multimap<String, IJobKey> jobsByRole = storage.read(
storeProvider ->
Multimaps.index(storeProvider.getTaskStore().getJobKeys(), IJobKey::getRole));
Multimap<String, IJobKey> cronJobsByRole = Multimaps.index(
Iterables.transform(Storage.Util.fetchCronJobs(storage), IJobConfiguration::getKey),
IJobKey::getRole);
Set<RoleSummary> summaries = FluentIterable.from(
Sets.union(jobsByRole.keySet(), cronJobsByRole.keySet()))
.transform(role -> new RoleSummary(
role,
jobsByRole.get(role).size(),
cronJobsByRole.get(role).size()))
.toSet();
return ok(Result.roleSummaryResult(new RoleSummaryResult(summaries)));
}
@Override
public Response getJobSummary(@Nullable String maybeNullRole) {
Optional<String> ownerRole = Optional.ofNullable(maybeNullRole);
Multimap<IJobKey, IScheduledTask> tasks = getTasks(maybeRoleScoped(ownerRole));
Map<IJobKey, IJobConfiguration> jobs = getJobs(ownerRole, tasks);
Function<IJobKey, JobSummary> makeJobSummary = jobKey -> {
IJobConfiguration job = jobs.get(jobKey);
JobSummary summary = new JobSummary()
.setJob(job.newBuilder())
.setStats(Jobs.getJobStats(tasks.get(jobKey)).newBuilder());
if (job.isSetCronSchedule()) {
CrontabEntry crontabEntry = CrontabEntry.parse(job.getCronSchedule());
Optional<Date> nextRun = cronPredictor.predictNextRun(crontabEntry);
return nextRun.map(date -> summary.setNextCronRunMs(date.getTime())).orElse(summary);
} else {
return summary;
}
};
ImmutableSet<JobSummary> jobSummaries =
FluentIterable.from(jobs.keySet()).transform(makeJobSummary).toSet();
return ok(Result.jobSummaryResult(new JobSummaryResult().setSummaries(jobSummaries)));
}
@Override
public Response getJobs(@Nullable String maybeNullRole) {
Optional<String> ownerRole = Optional.ofNullable(maybeNullRole);
return ok(Result.getJobsResult(
new GetJobsResult()
.setConfigs(IJobConfiguration.toBuildersSet(
getJobs(ownerRole, getTasks(maybeRoleScoped(ownerRole).active())).values()))));
}
@Override
public Response getQuota(String ownerRole) {
MorePreconditions.checkNotBlank(ownerRole);
return storage.read(storeProvider -> {
QuotaInfo quotaInfo = quotaManager.getQuotaInfo(ownerRole, storeProvider);
GetQuotaResult result = new GetQuotaResult()
.setQuota(aggregateFromBag(quotaInfo.getQuota()).newBuilder())
.setProdSharedConsumption(aggregateFromBag(
quotaInfo.getProdSharedConsumption()).newBuilder())
.setProdDedicatedConsumption(aggregateFromBag(
quotaInfo.getProdDedicatedConsumption()).newBuilder())
.setNonProdSharedConsumption(aggregateFromBag(
quotaInfo.getNonProdSharedConsumption()).newBuilder())
.setNonProdDedicatedConsumption(aggregateFromBag(
quotaInfo.getNonProdDedicatedConsumption()).newBuilder());
return ok(Result.getQuotaResult(result));
});
}
@Override
public Response getJobUpdateSummaries(JobUpdateQuery mutableQuery) {
IJobUpdateQuery query = IJobUpdateQuery.build(requireNonNull(mutableQuery));
List<IJobUpdateSummary> summaries = storage.read(
storeProvider -> storeProvider.getJobUpdateStore()
.fetchJobUpdates(query)
.stream()
.map(u -> u.getUpdate().getSummary()).collect(Collectors.toList()));
return ok(Result.getJobUpdateSummariesResult(new GetJobUpdateSummariesResult()
.setUpdateSummaries(IJobUpdateSummary.toBuildersList(summaries))));
}
@Override
public Response getJobUpdateDetails(JobUpdateKey mutableKey, JobUpdateQuery mutableQuery) {
if (mutableKey == null && mutableQuery == null) {
return error("Either key or query must be set.");
}
if (mutableQuery != null) {
IJobUpdateQuery query = IJobUpdateQuery.build(mutableQuery);
List<IJobUpdateDetails> details =
storage.read(storeProvider -> storeProvider.getJobUpdateStore().fetchJobUpdates(query));
return ok(Result.getJobUpdateDetailsResult(new GetJobUpdateDetailsResult()
.setDetailsList(IJobUpdateDetails.toBuildersList(details))));
}
// TODO(zmanji): Remove this code once `mutableKey` is removed in AURORA-1765
IJobUpdateKey key = IJobUpdateKey.build(mutableKey);
Optional<IJobUpdateDetails> details = storage.read(storeProvider ->
storeProvider.getJobUpdateStore().fetchJobUpdate(key));
if (details.isPresent()) {
return addMessage(ok(Result.getJobUpdateDetailsResult(
new GetJobUpdateDetailsResult().setDetails(details.get().newBuilder()))),
"The key argument is deprecated, use the query argument instead");
} else {
return invalidRequest("Invalid update: " + key);
}
}
@Override
public Response getJobUpdateDiff(JobUpdateRequest mutableRequest) {
IJobUpdateRequest request;
try {
request = IJobUpdateRequest.build(
new JobUpdateRequest(mutableRequest)
.setTaskConfig(configurationManager
.validateAndPopulate(
ITaskConfig.build(mutableRequest.getTaskConfig()),
mutableRequest.getInstanceCount())
.newBuilder()));
} catch (TaskDescriptionException e) {
return error(INVALID_REQUEST, e);
}
IJobKey job = request.getTaskConfig().getJob();
return storage.read(storeProvider -> {
if (storeProvider.getCronJobStore().fetchJob(job).isPresent()) {
return invalidRequest(NO_CRON);
}
JobDiff diff = JobDiff.compute(
storeProvider.getTaskStore(),
job,
JobDiff.asMap(request.getTaskConfig(), request.getInstanceCount()),
request.getSettings().getUpdateOnlyTheseInstances());
Map<Integer, ITaskConfig> replaced = diff.getReplacedInstances();
Map<Integer, ITaskConfig> replacements = Maps.asMap(
diff.getReplacementInstances(),
Functions.constant(request.getTaskConfig()));
Map<Integer, ITaskConfig> add = Maps.filterKeys(
replacements,
Predicates.in(Sets.difference(replacements.keySet(), replaced.keySet())));
Map<Integer, ITaskConfig> remove = Maps.filterKeys(
replaced,
Predicates.in(Sets.difference(replaced.keySet(), replacements.keySet())));
Map<Integer, ITaskConfig> update = Maps.filterKeys(
replaced,
Predicates.in(Sets.intersection(replaced.keySet(), replacements.keySet())));
return ok(Result.getJobUpdateDiffResult(new GetJobUpdateDiffResult()
.setAdd(instancesToConfigGroups(add))
.setRemove(instancesToConfigGroups(remove))
.setUpdate(instancesToConfigGroups(update))
.setUnchanged(instancesToConfigGroups(diff.getUnchangedInstances()))));
});
}
@Override
public Response getTierConfigs() throws TException {
return ok(Result.getTierConfigResult(
new GetTierConfigResult(
tierManager.getDefaultTierName(),
tierManager.getTiers()
.entrySet()
.stream()
.map(entry -> new TierConfig(entry.getKey(), entry.getValue().toMap()))
.collect(GuavaUtils.toImmutableSet()))));
}
private static Set<ConfigGroup> instancesToConfigGroups(Map<Integer, ITaskConfig> tasks) {
Multimap<ITaskConfig, Integer> instancesByDetails = Multimaps.invertFrom(
Multimaps.forMap(tasks),
HashMultimap.create());
return ImmutableSet.copyOf(
Iterables.transform(instancesByDetails.asMap().entrySet(), TO_GROUP));
}
private List<ScheduledTask> getTasks(TaskQuery query) {
requireNonNull(query);
Iterable<IScheduledTask> tasks = Storage.Util.fetchTasks(storage, Query.arbitrary(query));
if (query.getOffset() > 0) {
tasks = Iterables.skip(tasks, query.getOffset());
}
if (query.getLimit() > 0) {
tasks = Iterables.limit(tasks, query.getLimit());
}
return IScheduledTask.toBuildersList(tasks);
}
private Query.Builder maybeRoleScoped(Optional<String> ownerRole) {
return ownerRole.isPresent()
? Query.roleScoped(ownerRole.get())
: Query.unscoped();
}
private Map<IJobKey, IJobConfiguration> getJobs(
Optional<String> ownerRole,
Multimap<IJobKey, IScheduledTask> tasks) {
// We need to synthesize the JobConfiguration from the the current tasks because the
// ImmediateJobManager doesn't store jobs directly and ImmediateJobManager#getJobs always
// returns an empty Collection.
Map<IJobKey, IJobConfiguration> jobs = Maps.newHashMap();
jobs.putAll(Maps.transformEntries(tasks.asMap(),
(jobKey, tasks1) -> {
// Pick the latest transitioned task for each immediate job since the job can be in the
// middle of an update or some shards have been selectively created.
TaskConfig mostRecentTaskConfig =
Tasks.getLatestActiveTask(tasks1).getAssignedTask().getTask().newBuilder();
return IJobConfiguration.build(new JobConfiguration()
.setKey(jobKey.newBuilder())
.setOwner(mostRecentTaskConfig.getOwner())
.setTaskConfig(mostRecentTaskConfig)
.setInstanceCount(tasks1.size()));
}));
// Get cron jobs directly from the manager. Do this after querying the task store so the real
// template JobConfiguration for a cron job will overwrite the synthesized one that could have
// been created above.
Predicate<IJobConfiguration> configFilter = ownerRole.isPresent()
? Predicates.compose(Predicates.equalTo(ownerRole.get()), JobKeys::getRole)
: Predicates.alwaysTrue();
jobs.putAll(Maps.uniqueIndex(
FluentIterable.from(Storage.Util.fetchCronJobs(storage)).filter(configFilter),
IJobConfiguration::getKey));
return jobs;
}
private Multimap<IJobKey, IScheduledTask> getTasks(Query.Builder query) {
return Tasks.byJobKey(Storage.Util.fetchTasks(storage, query));
}
@VisibleForTesting
static final String NO_CRON = "Cron jobs are not supported.";
}