include KindAndEtag
include CommonApiTemplate
include WhitelistUpdate
+ extend CurrentApiClient
serialize :environment, Hash
serialize :mounts, Hash
serialize :runtime_constraints, Hash
serialize :command, Array
+ serialize :scheduling_parameters, Hash
before_validation :fill_field_defaults, :if => :new_record?
before_validation :set_timestamps
validate :validate_state_change
validate :validate_change
validate :validate_lock
+ validate :validate_output
after_validation :assign_auth
before_save :sort_serialized_attrs
after_save :handle_completed
t.add :started_at
t.add :state
t.add :auth_uuid
+ t.add :scheduling_parameters
end
# Supported states for a container
end
end
- protected
-
- def self.deep_sort_hash(x)
- if x.is_a? Hash
- x.sort.collect do |k, v|
- [k, deep_sort_hash(v)]
- end.to_h
- elsif x.is_a? Array
- x.collect { |v| deep_sort_hash(v) }
+ def self.find_reusable(attrs)
+ candidates = Container.
+ where('command = ?', attrs[:command].to_yaml).
+ where('cwd = ?', attrs[:cwd]).
+ where('environment = ?', self.deep_sort_hash(attrs[:environment]).to_yaml).
+ where('output_path = ?', attrs[:output_path]).
+ where('container_image = ?', attrs[:container_image]).
+ where('mounts = ?', self.deep_sort_hash(attrs[:mounts]).to_yaml).
+ where('runtime_constraints = ?', self.deep_sort_hash(attrs[:runtime_constraints]).to_yaml)
+
+ # Check for Completed candidates that had consistent outputs.
+ completed = candidates.where(state: Complete).where(exit_code: 0)
+ outputs = completed.select('output').group('output').limit(2)
+ if outputs.count.count != 1
+ Rails.logger.debug("Found #{outputs.count.length} different outputs")
+ elsif Collection.
+ readable_by(current_user).
+ where(portable_data_hash: outputs.first.output).
+ count < 1
+ Rails.logger.info("Found reusable container(s) " +
+ "but output #{outputs.first} is not readable " +
+ "by user #{current_user.uuid}")
else
- x
+ # Return the oldest eligible container whose log is still
+ # present and readable by current_user.
+ readable_pdh = Collection.
+ readable_by(current_user).
+ select('portable_data_hash')
+ completed = completed.
+ where("log in (#{readable_pdh.to_sql})").
+ order('finished_at asc').
+ limit(1)
+ if completed.first
+ return completed.first
+ else
+ Rails.logger.info("Found reusable container(s) but none with a log " +
+ "readable by user #{current_user.uuid}")
+ end
+ end
+
+ # Check for Running candidates and return the most likely to finish sooner.
+ running = candidates.where(state: Running).
+ order('progress desc, started_at asc').limit(1).first
+ return running if not running.nil?
+
+ # Check for Locked or Queued ones and return the most likely to start first.
+ locked_or_queued = candidates.where("state IN (?)", [Locked, Queued]).
+ order('state asc, priority desc, created_at asc').limit(1).first
+ return locked_or_queued if not locked_or_queued.nil?
+
+ # No suitable candidate found.
+ nil
+ end
+
+ def lock
+ with_lock do
+ if self.state == Locked
+ raise AlreadyLockedError
+ end
+ self.state = Locked
+ self.save!
end
end
+ def unlock
+ with_lock do
+ if self.state == Queued
+ raise InvalidStateTransitionError
+ end
+ self.state = Queued
+ self.save!
+ end
+ end
+
+ def self.readable_by(*users_list)
+ if users_list.select { |u| u.is_admin }.any?
+ return self
+ end
+ user_uuids = users_list.map { |u| u.uuid }
+ uuid_list = user_uuids + users_list.flat_map { |u| u.groups_i_can(:read) }
+ uuid_list.uniq!
+ permitted = "(SELECT head_uuid FROM links WHERE link_class='permission' AND tail_uuid IN (:uuids))"
+ joins(:container_requests).
+ where("container_requests.uuid IN #{permitted} OR "+
+ "container_requests.owner_uuid IN (:uuids)",
+ uuids: uuid_list)
+ end
+
+ def final?
+ [Complete, Cancelled].include?(self.state)
+ end
+
+ protected
+
def fill_field_defaults
self.state ||= Queued
self.environment ||= {}
self.mounts ||= {}
self.cwd ||= "."
self.priority ||= 1
+ self.scheduling_parameters ||= {}
end
def permission_to_create
end
def permission_to_update
- current_user.andand.is_admin
+ # Override base permission check to allow auth_uuid to set progress and
+ # output (only). Whether it is legal to set progress and output in the current
+ # state has already been checked in validate_change.
+ current_user.andand.is_admin ||
+ (!current_api_client_authorization.nil? and
+ [self.auth_uuid, self.locked_by_uuid].include? current_api_client_authorization.uuid)
+ end
+
+ def ensure_owner_uuid_is_permitted
+ # Override base permission check to allow auth_uuid to set progress and
+ # output (only). Whether it is legal to set progress and output in the current
+ # state has already been checked in validate_change.
+ if !current_api_client_authorization.nil? and self.auth_uuid == current_api_client_authorization.uuid
+ check_update_whitelist [:progress, :output]
+ else
+ super
+ end
end
def set_timestamps
if self.new_record?
permitted.push(:owner_uuid, :command, :container_image, :cwd,
:environment, :mounts, :output_path, :priority,
- :runtime_constraints)
+ :runtime_constraints, :scheduling_parameters)
end
case self.state
permitted.push :priority
when Running
- permitted.push :priority, :progress
+ permitted.push :priority, :progress, :output
if self.state_changed?
permitted.push :started_at
end
end
def validate_lock
- # If the Container is already locked by someone other than the
- # current api_client_auth, disallow all changes -- except
- # priority, which needs to change to reflect max(priority) of
- # relevant ContainerRequests.
- if locked_by_uuid_was
- if locked_by_uuid_was != Thread.current[:api_client_authorization].uuid
- check_update_whitelist [:priority]
- end
- end
-
if [Locked, Running].include? self.state
# If the Container was already locked, locked_by_uuid must not
# changes. Otherwise, the current auth gets the lock.
- need_lock = locked_by_uuid_was || Thread.current[:api_client_authorization].uuid
+ need_lock = locked_by_uuid_was || current_api_client_authorization.andand.uuid
else
need_lock = nil
end
self.locked_by_uuid = need_lock
end
+ def validate_output
+ # Output must exist and be readable by the current user. This is so
+ # that a container cannot "claim" a collection that it doesn't otherwise
+ # have access to just by setting the output field to the collection PDH.
+ if output_changed?
+ c = Collection.
+ readable_by(current_user).
+ where(portable_data_hash: self.output).
+ first
+ if !c
+ errors.add :output, "collection must exist and be readable by current user."
+ end
+ end
+ end
+
def assign_auth
if self.auth_uuid_changed?
return errors.add :auth_uuid, 'is readonly'
end
def sort_serialized_attrs
- self.environment = self.class.deep_sort_hash(self.environment)
- self.mounts = self.class.deep_sort_hash(self.mounts)
- self.runtime_constraints = self.class.deep_sort_hash(self.runtime_constraints)
+ if self.environment_changed?
+ self.environment = self.class.deep_sort_hash(self.environment)
+ end
+ if self.mounts_changed?
+ self.mounts = self.class.deep_sort_hash(self.mounts)
+ end
+ if self.runtime_constraints_changed?
+ self.runtime_constraints = self.class.deep_sort_hash(self.runtime_constraints)
+ end
+ if self.scheduling_parameters_changed?
+ self.scheduling_parameters = self.class.deep_sort_hash(self.scheduling_parameters)
+ end
end
def handle_completed
# This container is finished so finalize any associated container requests
# that are associated with this container.
- if self.state_changed? and [Complete, Cancelled].include? self.state
+ if self.state_changed? and self.final?
act_as_system_user do
+
+ if self.state == Cancelled
+ retryable_requests = ContainerRequest.where("priority > 0 and state = 'Committed' and container_count < container_count_max")
+ else
+ retryable_requests = []
+ end
+
+ if retryable_requests.any?
+ c_attrs = {
+ command: self.command,
+ cwd: self.cwd,
+ environment: self.environment,
+ output_path: self.output_path,
+ container_image: self.container_image,
+ mounts: self.mounts,
+ runtime_constraints: self.runtime_constraints,
+ scheduling_parameters: self.scheduling_parameters
+ }
+ c = Container.create! c_attrs
+ retryable_requests.each do |cr|
+ cr.with_lock do
+ # Use row locking because this increments container_count
+ cr.container_uuid = c.uuid
+ cr.save
+ end
+ end
+ end
+
# Notify container requests associated with this container
ContainerRequest.where(container_uuid: uuid,
- :state => ContainerRequest::Committed).each do |cr|
- cr.container_completed!
+ state: ContainerRequest::Committed).each do |cr|
+ cr.finalize!
end
# Try to cancel any outstanding container requests made by this container.
ContainerRequest.where(requesting_container_uuid: uuid,
- :state => ContainerRequest::Committed).each do |cr|
+ state: ContainerRequest::Committed).each do |cr|
cr.priority = 0
cr.save
end
projects / arvados.git / blobdiff