def get_compute_pilot_data(self, pilot_ids=None):
"""Returns the raw data (json dicts) of one or more ComputePilots
registered with this Worker / PilotManager
"""
# Wait for the initialized event to assert proper operation.
self._initialized.wait()
try:
if pilot_ids is None:
pilot_ids = self._shared_data.keys ()
return_list_type = True
if not isinstance(pilot_ids, list):
return_list_type = False
pilot_ids = [pilot_ids]
data = list()
for pilot_id in pilot_ids:
data.append(self._shared_data[pilot_id]['data'])
if return_list_type :
return data
else :
return data[0]
except KeyError as e:
logger.exception ("Unknown Pilot ID %s : %s" % (pilot_id, e))
raise
def call_unit_state_callbacks(self, unit_id, new_state):
"""Wrapper function to call all all relevant callbacks, on unit-level
as well as manager-level.
"""
# this is the point where, at the earliest, the application could have
# been notified about unit state changes. So we record that event.
if not unit_id in self._callback_histories:
self._callback_histories[unit_id] = list()
self._callback_histories[unit_id].append({
'timestamp':
datetime.datetime.utcnow(),
'state':
new_state
})
for [cb, cb_data] in self._shared_data[unit_id]['callbacks']:
try:
if self._shared_data[unit_id]['facade_object']:
if cb_data:
cb(self._shared_data[unit_id]['facade_object'],
new_state, cb_data)
else:
cb(self._shared_data[unit_id]['facade_object'],
new_state)
else:
logger.error("Couldn't call callback (no pilot instance)")
except Exception as e:
logger.exception("Couldn't call callback function %s" % e)
raise
# If we have any manager-level callbacks registered, we
# call those as well!
if not UNIT_STATE in self._manager_callbacks:
self._manager_callbacks[UNIT_STATE] = list()
for [cb, cb_data] in self._manager_callbacks[UNIT_STATE]:
if not self._shared_data[unit_id]['facade_object']:
logger.warning('skip cb for incomple unit (%s: %s)' %
(unit_id, new_state))
break
try:
if cb_data:
cb(self._shared_data[unit_id]['facade_object'], new_state,
cb_data)
else:
cb(self._shared_data[unit_id]['facade_object'], new_state)
except Exception as e:
logger.exception("Couldn't call callback function %s" % e)
raise
# If we meet a final state, we record the object's callback history for
# later evaluation.
if new_state in (DONE, FAILED, CANCELED):
self._db.publish_compute_unit_callback_history(
unit_id, self._callback_histories[unit_id])
def unschedule_compute_units(self, units):
"""
set the unit state to UNSCHEDULED
"""
try:
unit_ids = [unit.uid for unit in units]
self._db.set_compute_unit_state(unit_ids, UNSCHEDULED, "unit remains unscheduled")
except Exception, e:
logger.exception ('error in unit manager controller (unschedule())')
raise
def call_unit_state_callbacks(self, unit_id, new_state):
"""Wrapper function to call all all relevant callbacks, on unit-level
as well as manager-level.
"""
# this is the point where, at the earliest, the application could have
# been notified about unit state changes. So we record that event.
if not unit_id in self._callback_histories :
self._callback_histories[unit_id] = list()
self._callback_histories[unit_id].append (
{'timestamp' : datetime.datetime.utcnow(),
'state' : new_state})
for [cb, cb_data] in self._shared_data[unit_id]['callbacks']:
try:
if self._shared_data[unit_id]['facade_object'] :
if cb_data :
cb(self._shared_data[unit_id]['facade_object'], new_state, cb_data)
else :
cb(self._shared_data[unit_id]['facade_object'], new_state)
else :
logger.error("Couldn't call callback (no pilot instance)")
except Exception as e:
logger.exception(
"Couldn't call callback function %s" % e)
raise
# If we have any manager-level callbacks registered, we
# call those as well!
if not UNIT_STATE in self._manager_callbacks :
self._manager_callbacks[UNIT_STATE] = list()
for [cb, cb_data] in self._manager_callbacks[UNIT_STATE]:
if not self._shared_data[unit_id]['facade_object'] :
logger.warning ('skip cb for incomple unit (%s: %s)' % (unit_id, new_state))
break
try:
if cb_data :
cb(self._shared_data[unit_id]['facade_object'], new_state, cb_data)
else :
cb(self._shared_data[unit_id]['facade_object'], new_state)
except Exception as e:
logger.exception(
"Couldn't call callback function %s" % e)
raise
# If we meet a final state, we record the object's callback history for
# later evaluation.
if new_state in (DONE, FAILED, CANCELED) :
self._db.publish_compute_unit_callback_history (unit_id, self._callback_histories[unit_id])
def unschedule_compute_units(self, units):
"""
set the unit state to UNSCHEDULED
"""
try:
unit_ids = [unit.uid for unit in units]
self._db.set_compute_unit_state(unit_ids, UNSCHEDULED,
"unit remains unscheduled")
except Exception, e:
logger.exception('error in unit manager controller (unschedule())')
raise
def fire_manager_callback(self, metric, obj, value):
"""Fire a manager-level callback.
"""
if not metric in self._manager_callbacks :
self._manager_callbacks[metric] = list()
for [cb, cb_data] in self._manager_callbacks[metric] :
try:
if cb_data :
cb (obj, value, cb_data)
else :
cb (obj, value)
except Exception as e:
logger.exception ("Couldn't call '%s' callback function %s: %s" \
% (metric, cb, e))
raise
def fire_manager_callback(self, metric, obj, value):
"""Fire a manager-level callback.
"""
if not metric in self._manager_callbacks:
self._manager_callbacks[metric] = list()
for [cb, cb_data] in self._manager_callbacks[metric]:
try:
if cb_data:
cb(obj, value, cb_data)
else:
cb(obj, value)
except Exception as e:
logger.exception ("Couldn't call '%s' callback function %s: %s" \
% (metric, cb, e))
raise
def submit_units(self, unit_descriptions):
"""Submits on or more :class:`radical.pilot.ComputeUnit` instances to the
unit manager.
**Arguments:**
* **unit_descriptions** [:class:`radical.pilot.ComputeUnitDescription`
or list of :class:`radical.pilot.ComputeUnitDescription`]: The
description of the compute unit instance(s) to create.
**Returns:**
* A list of :class:`radical.pilot.ComputeUnit` objects.
**Raises:**
* :class:`radical.pilot.PilotException`
"""
if not self._uid:
raise IncorrectState(msg="Invalid object instance.")
return_list_type = True
if not isinstance(unit_descriptions, list):
return_list_type = False
unit_descriptions = [unit_descriptions]
# we return a list of compute units
ret = list()
# the scheduler will return a dictionary of the form:
# {
# ud_1 : pilot_id_a,
# ud_2 : pilot_id_b
# ...
# }
#
# The scheduler may not be able to schedule some units - those will
# have 'None' as pilot ID.
units = list()
for ud in unit_descriptions:
units.append(
ComputeUnit.create(unit_description=ud,
unit_manager_obj=self,
local_state=SCHEDULING))
self._worker.publish_compute_units(units=units)
schedule = None
try:
schedule = self._scheduler.schedule(units=units)
except Exception as e:
logger.exception("Internal error - unit scheduler failed")
raise
self.handle_schedule(schedule)
if return_list_type:
return units
else:
return units[0]
def __init__(self,
database_url=None,
database_name="radicalpilot",
uid=None,
name=None):
"""Creates a new or reconnects to an exising session.
If called without a uid, a new Session instance is created and
stored in the database. If uid is set, an existing session is
retrieved from the database.
**Arguments:**
* **database_url** (`string`): The MongoDB URL. If none is given,
RP uses the environment variable RADICAL_PILOT_DBURL. If that is
not set, an error will be raises.
* **database_name** (`string`): An alternative database name
(default: 'radicalpilot').
* **uid** (`string`): If uid is set, we try
re-connect to an existing session instead of creating a new one.
* **name** (`string`): An optional human readable name.
**Returns:**
* A new Session instance.
**Raises:**
* :class:`radical.pilot.DatabaseError`
"""
# init the base class inits
saga.Session.__init__(self)
Object.__init__(self)
# before doing anything else, set up the debug helper for the lifetime
# of the session.
self._debug_helper = ru.DebugHelper()
# Dictionaries holding all manager objects created during the session.
self._pilot_manager_objects = list()
self._unit_manager_objects = list()
# Create a new process registry. All objects belonging to this
# session will register their worker processes (if they have any)
# in this registry. This makes it easier to shut down things in
# a more coordinate fashion.
self._process_registry = _ProcessRegistry()
# The resource configuration dictionary associated with the session.
self._resource_configs = {}
self._database_url = database_url
self._database_name = database_name
if not self._database_url:
self._database_url = os.getenv("RADICAL_PILOT_DBURL", None)
if not self._database_url:
raise PilotException("no database URL (set RADICAL_PILOT_DBURL)")
logger.info("using database url %s" % self._database_url)
# if the database url contains a path element, we interpret that as
# database name (without the leading slash)
tmp_url = ru.Url(self._database_url)
if tmp_url.path and \
tmp_url.path[0] == '/' and \
len(tmp_url.path) > 1 :
self._database_name = tmp_url.path[1:]
logger.info("using database path %s" % self._database_name)
else:
logger.info("using database name %s" % self._database_name)
# Loading all "default" resource configurations
module_path = os.path.dirname(os.path.abspath(__file__))
default_cfgs = "%s/configs/*.json" % module_path
config_files = glob.glob(default_cfgs)
for config_file in config_files:
try:
rcs = ResourceConfig.from_file(config_file)
except Exception as e:
logger.error("skip config file %s: %s" % (config_file, e))
continue
for rc in rcs:
logger.info("Loaded resource configurations for %s" % rc)
self._resource_configs[rc] = rcs[rc].as_dict()
user_cfgs = "%s/.radical/pilot/configs/*.json" % os.environ.get('HOME')
config_files = glob.glob(user_cfgs)
for config_file in config_files:
try:
rcs = ResourceConfig.from_file(config_file)
except Exception as e:
logger.error("skip config file %s: %s" % (config_file, e))
continue
for rc in rcs:
logger.info("Loaded resource configurations for %s" % rc)
if rc in self._resource_configs:
# config exists -- merge user config into it
ru.dict_merge(self._resource_configs[rc],
rcs[rc].as_dict(),
policy='overwrite')
else:
# new config -- add as is
self._resource_configs[rc] = rcs[rc].as_dict()
default_aliases = "%s/configs/aliases.json" % module_path
self._resource_aliases = ru.read_json_str(default_aliases)['aliases']
##########################
## CREATE A NEW SESSION ##
##########################
if uid is None:
try:
self._connected = None
if name:
self._name = name
self._uid = name
# self._uid = ru.generate_id ('rp.session.'+name+'.%(item_counter)06d', mode=ru.ID_CUSTOM)
else:
self._uid = ru.generate_id('rp.session',
mode=ru.ID_PRIVATE)
self._name = self._uid
self._dbs, self._created, self._connection_info = \
dbSession.new(sid = self._uid,
name = self._name,
db_url = self._database_url,
db_name = database_name)
logger.info("New Session created%s." % str(self))
except Exception, ex:
logger.exception('session create failed')
raise PilotException("Couldn't create new session (database URL '%s' incorrect?): %s" \
% (self._database_url, ex))
def _pilot_state_callback (self, pilot, state) :
try :
with self.lock :
pid = pilot.uid
if not pid in self.pilots :
# as we cannot unregister callbacks, we simply ignore this
# invokation. Its probably from a pilot we used previously.
logger.warn ("[SchedulerCallback]: ComputePilot %s changed to %s (ignored)" % (pid, state))
return
self.pilots[pid]['state'] = state
logger.debug ("[SchedulerCallback]: ComputePilot %s changed to %s" % (pid, state))
if state in [ACTIVE] :
# the pilot is now ready to be used
self._reschedule (target_pid=pid)
if state in [DONE, FAILED, CANCELED] :
# self._dump ('pilot is final')
# If the pilot state is 'DONE', 'FAILED' or 'CANCELED', we
# need to reschedule the units which are reschedulable --
# all others are marked 'FAILED' if they are already
# 'EXECUTING' and not restartable
timestamp = datetime.datetime.utcnow()
self._db.change_compute_units (
filter_dict = {"pilot" : pid,
"state" : {"$in": [UNSCHEDULED,
PENDING_INPUT_STAGING,
STAGING_INPUT,
PENDING_EXECUTION,
SCHEDULING]}},
set_dict = {"state" : UNSCHEDULED,
"pilot" : None},
push_dict = {"statehistory": {"state" : UNSCHEDULED,
"timestamp" : timestamp},
"log" : {"message" : "reschedule unit",
"timestamp" : timestamp}
})
self._db.change_compute_units (
filter_dict = {"pilot" : pid,
"restartable" : True,
"state" : {"$in": [EXECUTING,
PENDING_OUTPUT_STAGING,
STAGING_OUTPUT]}},
set_dict = {"state" : UNSCHEDULED,
"pilot" : None},
push_dict = {"statehistory": {"state" : UNSCHEDULED,
"timestamp" : timestamp},
"log" : {"message" : "reschedule unit",
"timestamp" : timestamp}
})
self._db.change_compute_units (
filter_dict = {"pilot" : pid,
"restartable" : False,
"state" : {"$in": [EXECUTING,
PENDING_OUTPUT_STAGING,
STAGING_OUTPUT]}},
set_dict = {"state" : FAILED},
push_dict = {"statehistory": {"state" : FAILED,
"timestamp" : timestamp},
"log" : {"message" : "reschedule unit",
"timestamp" : timestamp}
})
# make sure that restartable units got back into the
# wait queue
#
# FIXME AM: f*****g state management: I don't have the
# unit state! New state was just pushed to the DB, but
# I have actually no idea for which units, and the state
# known to the worker (i.e. the cached state) is most
# likely outdated.
#
# So we don't handle runq/waitq here. Instead, we rely
# on the unit cb to get invoked as soon as the state
# propagated back to us, and then remove them from the
# runq. This is slow, potentially very slow, but save.
# we can't use this pilot anymore...
del self.pilots[pid]
# FIXME: how can I *un*register a pilot callback?
except Exception as e :
# import traceback
# traceback.print_exc ()
logger.exception ("error in pilot callback for backfiller (%s) - ignored" % e)
raise
def __init__ (self, database_url=None, database_name="radicalpilot",
uid=None, name=None):
"""Creates a new or reconnects to an exising session.
If called without a uid, a new Session instance is created and
stored in the database. If uid is set, an existing session is
retrieved from the database.
**Arguments:**
* **database_url** (`string`): The MongoDB URL. If none is given,
RP uses the environment variable RADICAL_PILOT_DBURL. If that is
not set, an error will be raises.
* **database_name** (`string`): An alternative database name
(default: 'radicalpilot').
* **uid** (`string`): If uid is set, we try
re-connect to an existing session instead of creating a new one.
* **name** (`string`): An optional human readable name.
**Returns:**
* A new Session instance.
**Raises:**
* :class:`radical.pilot.DatabaseError`
"""
# init the base class inits
saga.Session.__init__ (self)
Object.__init__ (self)
# before doing anything else, set up the debug helper for the lifetime
# of the session.
self._debug_helper = ru.DebugHelper ()
# Dictionaries holding all manager objects created during the session.
self._pilot_manager_objects = list()
self._unit_manager_objects = list()
# Create a new process registry. All objects belonging to this
# session will register their worker processes (if they have any)
# in this registry. This makes it easier to shut down things in
# a more coordinate fashion.
self._process_registry = _ProcessRegistry()
# The resource configuration dictionary associated with the session.
self._resource_configs = {}
self._database_url = database_url
self._database_name = database_name
if not self._database_url :
self._database_url = os.getenv ("RADICAL_PILOT_DBURL", None)
if not self._database_url :
raise PilotException ("no database URL (set RADICAL_PILOT_DBURL)")
logger.info("using database url %s" % self._database_url)
# if the database url contains a path element, we interpret that as
# database name (without the leading slash)
tmp_url = ru.Url (self._database_url)
if tmp_url.path and \
tmp_url.path[0] == '/' and \
len(tmp_url.path) > 1 :
self._database_name = tmp_url.path[1:]
logger.info("using database path %s" % self._database_name)
else :
logger.info("using database name %s" % self._database_name)
# Loading all "default" resource configurations
module_path = os.path.dirname(os.path.abspath(__file__))
default_cfgs = "%s/configs/*.json" % module_path
config_files = glob.glob(default_cfgs)
for config_file in config_files:
try :
rcs = ResourceConfig.from_file(config_file)
except Exception as e :
logger.error ("skip config file %s: %s" % (config_file, e))
continue
for rc in rcs:
logger.info("Loaded resource configurations for %s" % rc)
self._resource_configs[rc] = rcs[rc].as_dict()
user_cfgs = "%s/.radical/pilot/configs/*.json" % os.environ.get ('HOME')
config_files = glob.glob(user_cfgs)
for config_file in config_files:
try :
rcs = ResourceConfig.from_file(config_file)
except Exception as e :
logger.error ("skip config file %s: %s" % (config_file, e))
continue
for rc in rcs:
logger.info("Loaded resource configurations for %s" % rc)
if rc in self._resource_configs :
# config exists -- merge user config into it
ru.dict_merge (self._resource_configs[rc],
rcs[rc].as_dict(),
policy='overwrite')
else :
# new config -- add as is
self._resource_configs[rc] = rcs[rc].as_dict()
default_aliases = "%s/configs/aliases.json" % module_path
self._resource_aliases = ru.read_json_str (default_aliases)['aliases']
##########################
## CREATE A NEW SESSION ##
##########################
if uid is None:
try:
self._connected = None
if name :
self._name = name
self._uid = name
# self._uid = ru.generate_id ('rp.session.'+name+'.%(item_counter)06d', mode=ru.ID_CUSTOM)
else :
self._uid = ru.generate_id ('rp.session', mode=ru.ID_PRIVATE)
self._name = self._uid
self._dbs, self._created, self._connection_info = \
dbSession.new(sid = self._uid,
name = self._name,
db_url = self._database_url,
db_name = database_name)
logger.info("New Session created%s." % str(self))
except Exception, ex:
logger.exception ('session create failed')
raise PilotException("Couldn't create new session (database URL '%s' incorrect?): %s" \
% (self._database_url, ex))
def schedule_compute_units(self, pilot_uid, units):
"""Request the scheduling of one or more ComputeUnits on a
ComputePilot.
"""
try:
cu_transfer = list()
cu_notransfer = list()
# Get some information about the pilot sandbox from the database.
pilot_info = self._db.get_pilots(pilot_ids=pilot_uid)
# TODO: this hack below relies on what?! That there is just one pilot?
pilot_sandbox = pilot_info[0]['sandbox']
# Split units into two different lists: the first list contains the CUs
# that need file transfer and the second list contains the CUs that
# don't. The latter is added to the pilot directly, while the former
# is added to the transfer queue.
for unit in units:
# Create object for staging status tracking
unit.FTW_Input_Status = None
unit.FTW_Input_Directives = []
unit.Agent_Input_Status = None
unit.Agent_Input_Directives = []
unit.FTW_Output_Status = None
unit.FTW_Output_Directives = []
unit.Agent_Output_Status = None
unit.Agent_Output_Directives = []
# Split the input staging directives over the transfer worker and the agent
input_sds = unit.description.input_staging
if not isinstance(input_sds, list):
# Ugly, but is a workaround for iterating on attribute interface
# TODO: Verify if this piece of code is actually still required
if input_sds:
input_sds = [input_sds]
else:
input_sds = []
for input_sd_entry in input_sds:
action = input_sd_entry['action']
source = Url(input_sd_entry['source'])
target = Url(input_sd_entry['target'])
new_sd = {'action': action,
'source': str(source),
'target': str(target),
'flags': input_sd_entry['flags'],
'priority': input_sd_entry['priority'],
'state': PENDING
}
if action in [LINK, COPY, MOVE]:
unit.Agent_Input_Directives.append(new_sd)
unit.Agent_Input_Status = PENDING
elif action in [TRANSFER]:
if source.scheme and source.scheme != 'file':
# If there is a scheme and it is different than "file",
# assume a remote pull from the agent
unit.Agent_Input_Directives.append(new_sd)
unit.Agent_Input_Status = PENDING
else:
# Transfer from local to sandbox
unit.FTW_Input_Directives.append(new_sd)
unit.FTW_Input_Status = PENDING
else:
logger.warn('Not sure if action %s makes sense for input staging' % action)
# Split the output staging directives over the transfer worker and the agent
output_sds = unit.description.output_staging
if not isinstance(output_sds, list):
# Ugly, but is a workaround for iterating on att iface
# TODO: Verify if this piece of code is actually still required
if output_sds:
output_sds = [output_sds]
else:
output_sds = []
for output_sds_entry in output_sds:
action = output_sds_entry['action']
source = Url(output_sds_entry['source'])
target = Url(output_sds_entry['target'])
new_sd = {'action': action,
'source': str(source),
'target': str(target),
'flags': output_sds_entry['flags'],
'priority': output_sds_entry['priority'],
'state': PENDING
}
if action == LINK or action == COPY or action == MOVE:
unit.Agent_Output_Directives.append(new_sd)
unit.Agent_Output_Status = NEW
elif action == TRANSFER:
if target.scheme and target.scheme != 'file':
# If there is a scheme and it is different than "file",
# assume a remote push from the agent
unit.Agent_Output_Directives.append(new_sd)
unit.Agent_Output_Status = NEW
else:
# Transfer from sandbox back to local
unit.FTW_Output_Directives.append(new_sd)
unit.FTW_Output_Status = NEW
else:
logger.warn('Not sure if action %s makes sense for output staging' % action)
if unit.FTW_Input_Directives or unit.Agent_Input_Directives:
log = "Scheduled for data transfer to ComputePilot %s." % pilot_uid
self._db.set_compute_unit_state(unit.uid, PENDING_INPUT_STAGING, log)
cu_transfer.append(unit)
else:
cu_notransfer.append(unit)
# Bulk-add all non-transfer units-
self._db.assign_compute_units_to_pilot(
units=cu_notransfer,
pilot_uid=pilot_uid,
pilot_sandbox=pilot_sandbox
)
self._db.assign_compute_units_to_pilot(
units=cu_transfer,
pilot_uid=pilot_uid,
pilot_sandbox=pilot_sandbox
)
for unit in cu_notransfer:
log = "Scheduled for execution on ComputePilot %s." % pilot_uid
self._db.set_compute_unit_state(unit.uid, PENDING_EXECUTION, log)
#self._set_state(uid, PENDING_EXECUTION, log)
logger.info(
"Scheduled ComputeUnits %s for execution on ComputePilot '%s'." %
(cu_notransfer, pilot_uid)
)
except Exception, e:
logger.exception ('error in unit manager controller (schedule())')
raise
def run(self):
"""Starts the process when Process.start() is called.
"""
# make sure to catch sys.exit (which raises SystemExit)
try :
logger.info("Starting InputFileTransferWorker")
# Try to connect to the database and create a tailable cursor.
try:
connection = self.db_connection_info.get_db_handle()
db = connection[self.db_connection_info.dbname]
um_col = db["%s.cu" % self.db_connection_info.session_id]
logger.debug("Connected to MongoDB. Serving requests for UnitManager %s." % self.unit_manager_id)
except Exception as e :
logger.exception("Connection error: %s" % e)
raise
try :
while not self._stop.is_set():
# See if we can find a ComputeUnit that is waiting for
# input file transfer.
compute_unit = None
ts = datetime.datetime.utcnow()
compute_unit = um_col.find_and_modify(
query={"unitmanager": self.unit_manager_id,
"FTW_Input_Status": PENDING},
update={"$set" : {"FTW_Input_Status": EXECUTING,
"state": STAGING_INPUT},
"$push": {"statehistory": {"state": STAGING_INPUT, "timestamp": ts}}},
limit=BULK_LIMIT # TODO: bulklimit is probably not the best way to ensure there is just one
)
# FIXME: AM: find_and_modify is not bulkable!
state = STAGING_INPUT
if compute_unit is None:
# Sleep a bit if no new units are available.
time.sleep(IDLE_TIME)
else:
compute_unit_id = None
try:
log_messages = []
# We have found a new CU. Now we can process the transfer
# directive(s) wit SAGA.
compute_unit_id = str(compute_unit["_id"])
remote_sandbox = compute_unit["sandbox"]
input_staging = compute_unit["FTW_Input_Directives"]
# We need to create the CU's directory in case it doesn't exist yet.
log_msg = "Creating ComputeUnit sandbox directory %s." % remote_sandbox
log_messages.append(log_msg)
logger.info(log_msg)
# Creating the sandbox directory.
try:
logger.debug ("saga.fs.Directory ('%s')" % remote_sandbox)
remote_sandbox_keyurl = saga.Url (remote_sandbox)
remote_sandbox_keyurl.path = '/'
remote_sandbox_key = str(remote_sandbox_keyurl)
if remote_sandbox_key not in self._saga_dirs :
self._saga_dirs[remote_sandbox_key] = \
saga.filesystem.Directory (remote_sandbox_key,
flags=saga.filesystem.CREATE_PARENTS,
session=self._session)
saga_dir = self._saga_dirs[remote_sandbox_key]
saga_dir.make_dir (remote_sandbox,
flags=saga.filesystem.CREATE_PARENTS)
except Exception as e :
logger.exception('Error: %s' % e)
# FIXME: why is this exception ignored? AM
logger.info("Processing input file transfers for ComputeUnit %s" % compute_unit_id)
# Loop over all transfer directives and execute them.
for sd in input_staging:
state_doc = um_col.find_one(
{"_id": compute_unit_id},
fields=["state"]
)
if state_doc['state'] == CANCELED:
logger.info("Compute Unit Canceled, interrupting input file transfers.")
state = CANCELED
break
abs_src = os.path.abspath(sd['source'])
input_file_url = saga.Url("file://localhost/%s" % abs_src)
if not sd['target']:
target = remote_sandbox
else:
target = "%s/%s" % (remote_sandbox, sd['target'])
log_msg = "Transferring input file %s -> %s" % (input_file_url, target)
log_messages.append(log_msg)
logger.debug(log_msg)
# Execute the transfer.
logger.debug ("saga.fs.File ('%s')" % input_file_url)
input_file = saga.filesystem.File(
input_file_url,
session=self._session
)
if CREATE_PARENTS in sd['flags']:
copy_flags = saga.filesystem.CREATE_PARENTS
else:
copy_flags = 0
try :
input_file.copy(target, flags=copy_flags)
except Exception as e :
logger.exception (e)
input_file.close()
# If all went fine, update the state of this StagingDirective to Done
um_col.find_and_modify(
query={"_id" : compute_unit_id,
'FTW_Input_Status': EXECUTING,
'FTW_Input_Directives.state': PENDING,
'FTW_Input_Directives.source': sd['source'],
'FTW_Input_Directives.target': sd['target'],
},
update={'$set': {'FTW_Input_Directives.$.state': 'Done'},
'$push': {'log': {
'timestamp': datetime.datetime.utcnow(),
'message' : log_msg}}
}
)
except Exception as e :
# Update the CU's state 'FAILED'.
ts = datetime.datetime.utcnow()
logentry = {'message' : "Input transfer failed: %s" % e,
'timestamp': ts}
um_col.update({'_id': compute_unit_id}, {
'$set': {'state': FAILED},
'$push': {
'statehistory': {'state': FAILED, 'timestamp': ts},
'log': logentry
}
})
logger.exception(str(logentry))
# Code below is only to be run by the "first" or only worker
if self._worker_number > 1:
continue
# If the CU was canceled we can skip the remainder of this loop.
if state == CANCELED:
continue
#
# Check to see if there are more pending Directives, if not, we are Done
#
cursor_w = um_col.find({"unitmanager": self.unit_manager_id,
"$or": [ {"Agent_Input_Status": EXECUTING},
{"FTW_Input_Status": EXECUTING}
]
}
)
# Iterate over all the returned CUs (if any)
for cu in cursor_w:
# See if there are any FTW Input Directives still pending
if cu['FTW_Input_Status'] == EXECUTING and \
not any(d['state'] == EXECUTING or d['state'] == PENDING for d in cu['FTW_Input_Directives']):
# All Input Directives for this FTW are done, mark the CU accordingly
um_col.update({"_id": cu["_id"]},
{'$set': {'FTW_Input_Status': DONE},
'$push': {'log': {
'timestamp': datetime.datetime.utcnow(),
'message' : 'All FTW Input Staging Directives done - %d.' % self._worker_number}}
}
)
# See if there are any Agent Input Directives still pending or executing,
# if not, mark it DONE.
if cu['Agent_Input_Status'] == EXECUTING and \
not any(d['state'] == EXECUTING or d['state'] == PENDING for d in cu['Agent_Input_Directives']):
# All Input Directives for this Agent are done, mark the CU accordingly
um_col.update({"_id": cu["_id"]},
{'$set': {'Agent_Input_Status': DONE},
'$push': {'log': {
'timestamp': datetime.datetime.utcnow(),
'message' : 'All Agent Input Staging Directives done - %d.' % self._worker_number}}
}
)
#
# Check for all CUs if both Agent and FTW staging is done, we can then mark the CU PendingExecution
#
ts = datetime.datetime.utcnow()
um_col.find_and_modify(
query={"unitmanager": self.unit_manager_id,
"Agent_Input_Status": { "$in": [ None, DONE ] },
"FTW_Input_Status": { "$in": [ None, DONE ] },
"state": STAGING_INPUT
},
update={"$set": {
"state": PENDING_EXECUTION
},
"$push": {
"statehistory": {"state": PENDING_EXECUTION, "timestamp": ts}
}
}
)
except Exception as e :
logger.exception("transfer worker error: %s" % e)
self._session.close (cleanup=False)
raise
except SystemExit as e :
logger.debug("input file transfer thread caught system exit -- forcing application shutdown")
import thread
thread.interrupt_main ()
def submit_units(self, unit_descriptions):
"""Submits on or more :class:`radical.pilot.ComputeUnit` instances to the
unit manager.
**Arguments:**
* **unit_descriptions** [:class:`radical.pilot.ComputeUnitDescription`
or list of :class:`radical.pilot.ComputeUnitDescription`]: The
description of the compute unit instance(s) to create.
**Returns:**
* A list of :class:`radical.pilot.ComputeUnit` objects.
**Raises:**
* :class:`radical.pilot.PilotException`
"""
if not self._uid:
raise IncorrectState(msg="Invalid object instance.")
return_list_type = True
if not isinstance(unit_descriptions, list):
return_list_type = False
unit_descriptions = [unit_descriptions]
# we return a list of compute units
ret = list()
# the scheduler will return a dictionary of the form:
# {
# ud_1 : pilot_id_a,
# ud_2 : pilot_id_b
# ...
# }
#
# The scheduler may not be able to schedule some units - those will
# have 'None' as pilot ID.
units = list()
for ud in unit_descriptions :
units.append (ComputeUnit.create (unit_description=ud,
unit_manager_obj=self,
local_state=SCHEDULING))
self._worker.publish_compute_units (units=units)
schedule = None
try:
schedule = self._scheduler.schedule (units=units)
except Exception as e:
logger.exception ("Internal error - unit scheduler failed")
raise
self.handle_schedule (schedule)
if return_list_type :
return units
else :
return units[0]
def run(self):
"""run() is called when the process is started via
PilotManagerController.start().
"""
# make sure to catch sys.exit (which raises SystemExit)
try :
logger.debug("Worker thread (ID: %s[%s]) for PilotManager %s started." %
(self.name, self.ident, self._pm_id))
while not self._stop.is_set():
# # Check if one or more startup requests have finished.
# self.startup_results_lock.acquire()
# new_startup_results = list()
# for transfer_result in self.startup_results:
# if transfer_result.ready():
# result = transfer_result.get()
# self._db.update_pilot_state(
# pilot_uid=result["pilot_uid"],
# state=result["state"],
# sagajobid=result["saga_job_id"],
# pilot_sandbox=result["sandbox"],
# global_sandbox=result["global_sandbox"],
# submitted=result["submitted"],
# logs=result["logs"]
# )
# else:
# new_startup_results.append(transfer_result)
# self.startup_results = new_startup_results
# self.startup_results_lock.release()
# Check and update pilots. This needs to be optimized at
# some point, i.e., state pulling should be conditional
# or triggered by a tailable MongoDB cursor, etc.
pilot_list = self._db.get_pilots(pilot_manager_id=self._pm_id)
action = False
for pilot in pilot_list:
pilot_id = str(pilot["_id"])
new_state = pilot["state"]
if pilot_id in self._shared_data:
old_state = self._shared_data[pilot_id]["data"]["state"]
else:
old_state = None
self._shared_data[pilot_id] = {
'data': pilot,
'callbacks': [],
'facade_object': None
}
self._shared_data[pilot_id]['data'] = pilot
# FIXME: *groan* what a hack... The Canceling state is by
# the nature of it not recorded in the database, but only in
# the local cache. So if we see it as old state, we have to
# avoid state transitions into non-final states in the cache
# at all cost -- so we catch this here specifically
no_cb = False
if old_state == CANCELING :
if new_state not in [DONE, FAILED, CANCELED] :
# restore old state, making the cache explicitly
# different than the DB recorded state
self._shared_data[pilot_id]["data"]["state"] = old_state
# do not tr igger a state cb!
no_cb = True
if new_state != old_state :
action = True
if not no_cb :
# On a state change, we fire zee callbacks.
logger.info("ComputePilot '%s' state changed from '%s' to '%s'." \
% (pilot_id, old_state, new_state))
# The state of the pilot has changed, We call all
# pilot-level callbacks to propagate this. This also
# includes communication to the unit scheduler which
# may, or may not, cancel the pilot's units.
self.call_callbacks(pilot_id, new_state)
# If the state is 'DONE', 'FAILED' or 'CANCELED', we also
# set the state of the compute unit accordingly (but only
# for non-final units)
if new_state in [FAILED, DONE, CANCELED]:
unit_ids = self._db.pilot_list_compute_units(pilot_uid=pilot_id)
self._db.set_compute_unit_state (
unit_ids=unit_ids,
state=CANCELED,
src_states=[ PENDING_INPUT_STAGING,
STAGING_INPUT,
PENDING_EXECUTION,
SCHEDULING,
EXECUTING,
PENDING_OUTPUT_STAGING,
STAGING_OUTPUT
],
log="Pilot '%s' has terminated with state '%s'. CU canceled." % (pilot_id, new_state))
# After the first iteration, we are officially initialized!
if not self._initialized.is_set():
self._initialized.set()
# sleep a little if this cycle was idle
if not action :
time.sleep(IDLE_TIME)
except SystemExit as e :
logger.exception ("pilot manager controller thread caught system exit -- forcing application shutdown")
import thread
thread.interrupt_main ()
finally :
# shut down the autonomous pilot launcher worker(s)
for worker in self._pilot_launcher_worker_pool:
logger.debug("pworker %s stops launcher %s" % (self.name, worker.name))
worker.stop ()
logger.debug("pworker %s stopped launcher %s" % (self.name, worker.name))
def run(self):
"""Starts the process when Process.start() is called.
"""
# make sure to catch sys.exit (which raises SystemExit)
try:
# Get directory where this module lives
mod_dir = os.path.dirname(os.path.realpath(__file__))
# Try to connect to the database
try:
connection = self.db_connection_info.get_db_handle()
db = connection[self.db_connection_info.dbname]
pilot_col = db["%s.p" % self.db_connection_info.session_id]
logger.debug(
"Connected to MongoDB. Serving requests for PilotManager %s."
% self.pilot_manager_id)
except Exception as e:
logger.exception("Connection error: %s" % e)
return
last_job_check = time.time()
while not self._stop.is_set():
# Periodically, we pull up all ComputePilots that are pending
# execution or were last seen executing and check if the corresponding
# SAGA job is still pending in the queue. If that is not the case,
# we assume that the job has failed for some reasons and update
# the state of the ComputePilot accordingly.
if last_job_check + JOB_CHECK_INTERVAL < time.time():
last_job_check = time.time()
self.check_pilot_states(pilot_col)
# See if we can find a ComputePilot that is waiting to be launched.
# If we find one, we use SAGA to create a job service, a job
# description and a job that is then send to the local or remote
# queueing system. If this succedes, we set the ComputePilot's
# state to pending, otherwise to failed.
compute_pilot = None
ts = datetime.datetime.utcnow()
compute_pilot = pilot_col.find_and_modify(
query={
"pilotmanager": self.pilot_manager_id,
"state": PENDING_LAUNCH
},
update={
"$set": {
"state": LAUNCHING
},
"$push": {
"statehistory": {
"state": LAUNCHING,
"timestamp": ts
}
}
})
if not compute_pilot:
time.sleep(IDLE_TIMER)
else:
try:
# ------------------------------------------------------
#
# LAUNCH THE PILOT AGENT VIA SAGA
#
logentries = []
pilot_id = str(compute_pilot["_id"])
logger.info("Launching ComputePilot %s" % pilot_id)
# ------------------------------------------------------
# Database connection parameters
session_uid = self.db_connection_info.session_id
database_url = self.db_connection_info.dburl
database_name = self.db_connection_info.dbname
database_auth = self.db_connection_info.dbauth
# ------------------------------------------------------
# pilot description and resource configuration
number_cores = compute_pilot['description']['cores']
runtime = compute_pilot['description']['runtime']
queue = compute_pilot['description']['queue']
project = compute_pilot['description']['project']
cleanup = compute_pilot['description']['cleanup']
resource_key = compute_pilot['description']['resource']
schema = compute_pilot['description']['access_schema']
memory = compute_pilot['description']['memory']
pilot_sandbox = compute_pilot['sandbox']
global_sandbox = compute_pilot['global_sandbox']
# we expand and exchange keys in the resource config,
# depending on the selected schema so better use a deep
# copy..
resource_cfg = self._session.get_resource_config(
resource_key, schema)
# import pprint
# pprint.pprint (resource_cfg)
# ------------------------------------------------------
# get parameters from cfg, set defaults where needed
agent_mongodb_endpoint = resource_cfg.get(
'agent_mongodb_endpoint', database_url)
agent_spawner = resource_cfg.get(
'agent_spawner', DEFAULT_AGENT_SPAWNER)
agent_type = resource_cfg.get('agent_type',
DEFAULT_AGENT_TYPE)
agent_scheduler = resource_cfg.get('agent_scheduler')
tunnel_bind_device = resource_cfg.get(
'tunnel_bind_device')
default_queue = resource_cfg.get('default_queue')
forward_tunnel_endpoint = resource_cfg.get(
'forward_tunnel_endpoint')
js_endpoint = resource_cfg.get('job_manager_endpoint')
lrms = resource_cfg.get('lrms')
mpi_launch_method = resource_cfg.get(
'mpi_launch_method')
pre_bootstrap = resource_cfg.get('pre_bootstrap')
python_interpreter = resource_cfg.get(
'python_interpreter')
spmd_variation = resource_cfg.get('spmd_variation')
task_launch_method = resource_cfg.get(
'task_launch_method')
rp_version = resource_cfg.get('rp_version',
DEFAULT_RP_VERSION)
virtenv_mode = resource_cfg.get(
'virtenv_mode', DEFAULT_VIRTENV_MODE)
virtenv = resource_cfg.get('virtenv', DEFAULT_VIRTENV)
stage_cacerts = resource_cfg.get(
'stage_cacerts', 'False')
if stage_cacerts.lower() == 'true':
stage_cacerts = True
else:
stage_cacerts = False
# expand variables in virtenv string
virtenv = virtenv % {
'pilot_sandbox': saga.Url(pilot_sandbox).path,
'global_sandbox': saga.Url(global_sandbox).path
}
# Check for deprecated global_virtenv
global_virtenv = resource_cfg.get('global_virtenv')
if global_virtenv:
logger.warn(
"'global_virtenv' keyword is deprecated -- use 'virtenv' and 'virtenv_mode'"
)
virtenv = global_virtenv
virtenv_mode = 'use'
# set default scheme, host, port and dbname if not set
db_url = saga.Url(agent_mongodb_endpoint)
if not db_url.scheme: db_url.scheme = 'mongodb'
if not db_url.host: db_url.host = 'localhost'
if not db_url.port: db_url.port = 27017
if not database_name: database_name = 'radicalpilot'
# Create a host:port string for use by the bootstrapper.
database_hostport = "%s:%d" % (db_url.host,
db_url.port)
# ------------------------------------------------------
# Copy the bootstrap shell script. This also creates
# the sandbox. We use always "default_bootstrapper.sh"
bootstrapper = 'default_bootstrapper.sh'
bootstrapper_path = os.path.abspath("%s/../bootstrapper/%s" \
% (mod_dir, bootstrapper))
msg = "Using bootstrapper %s" % bootstrapper_path
logentries.append(Logentry(msg, logger=logger.info))
bs_script_url = saga.Url("file://localhost/%s" %
bootstrapper_path)
bs_script_tgt = saga.Url("%s/pilot_bootstrapper.sh" %
pilot_sandbox)
msg = "Copying bootstrapper '%s' to agent sandbox (%s)." \
% (bs_script_url, bs_script_tgt)
logentries.append(Logentry(msg, logger=logger.debug))
bs_script = saga.filesystem.File(bs_script_url,
session=self._session)
bs_script.copy(bs_script_tgt,
flags=saga.filesystem.CREATE_PARENTS)
bs_script.close()
# ------------------------------------------------------
# the version of the agent is derived from
# rp_version, which has the following format
# and interpretation:
#
# case rp_version:
# @<token>:
# @tag/@branch/@commit: # no sdist staging
# git clone $github_base radical.pilot.src
# (cd radical.pilot.src && git checkout token)
# pip install -t $VIRTENV/rp_install/ radical.pilot.src
# rm -rf radical.pilot.src
# export PYTHONPATH=$VIRTENV/rp_install:$PYTHONPATH
#
# release: # no sdist staging
# pip install -t $VIRTENV/rp_install radical.pilot
# export PYTHONPATH=$VIRTENV/rp_install:$PYTHONPATH
#
# local: # needs sdist staging
# tar zxf $sdist.tgz
# pip install -t $VIRTENV/rp_install $sdist/
# export PYTHONPATH=$VIRTENV/rp_install:$PYTHONPATH
#
# debug: # needs sdist staging
# tar zxf $sdist.tgz
# pip install -t $SANDBOX/rp_install $sdist/
# export PYTHONPATH=$SANDBOX/rp_install:$PYTHONPATH
#
# installed: # no sdist staging
# true
# esac
#
# virtenv_mode
# private : error if ve exists, otherwise create, then use
# update : update if ve exists, otherwise create, then use
# create : use if ve exists, otherwise create, then use
# use : use if ve exists, otherwise error, then exit
# recreate: delete if ve exists, otherwise create, then use
#
# examples :
# [email protected]
# virtenv@devel
# virtenv@release
# virtenv@installed
# stage@local
# stage@/tmp/my_agent.py
#
# Note that some combinations may be invalid,
# specifically in the context of virtenv_mode. If, for
# example, virtenv_mode is 'use', then the 'virtenv:tag'
# will not make sense, as the virtenv is not updated.
# In those cases, the virtenv_mode is honored, and
# a warning is printed.
#
# Also, the 'stage' mode can only be combined with the
# 'local' source, or with a path to the agent (relative
# to mod_dir, or absolute).
#
# A rp_version which does not adhere to the
# above syntax is ignored, and the fallback stage@local
# is used.
if not rp_version.startswith('@') and \
not rp_version in ['installed', 'local', 'debug']:
raise ValueError("invalid rp_version '%s'" %
rp_version)
stage_sdist = True
if rp_version in ['installed', 'release']:
stage_sdist = False
if rp_version.startswith('@'):
stage_sdist = False
rp_version = rp_version[1:] # strip '@'
# ------------------------------------------------------
# Copy the rp sdist if needed. We actually also stage
# the sdists for radical.utils and radical.saga, so that
# we have the complete stack to install...
if stage_sdist:
for path in [
ru.sdist_path, saga.sdist_path, sdist_path
]:
sdist_url = saga.Url("file://localhost/%s" %
path)
msg = "Copying sdist '%s' to sdist sandbox (%s)." % (
sdist_url, pilot_sandbox)
logentries.append(
Logentry(msg, logger=logger.debug))
sdist_file = saga.filesystem.File(sdist_url)
sdist_file.copy("%s/" % (str(pilot_sandbox)))
sdist_file.close()
# ------------------------------------------------------
# some machines cannot run pip due to outdated ca certs.
# For those, we also stage an updated cert bundle
if stage_cacerts:
cc_path = os.path.abspath("%s/../bootstrapper/%s" \
% (mod_dir, 'cacert.pem.gz'))
cc_script_url = saga.Url("file://localhost/%s" %
cc_path)
cc_script_tgt = saga.Url("%s/cacert.pem.gz" %
pilot_sandbox)
cc_script = saga.filesystem.File(
cc_script_url, session=self._session)
cc_script.copy(
cc_script_tgt,
flags=saga.filesystem.CREATE_PARENTS)
cc_script.close()
# ------------------------------------------------------
# sanity checks
if not agent_spawner:
raise RuntimeError("missing agent spawner")
if not agent_scheduler:
raise RuntimeError("missing agent scheduler")
if not lrms: raise RuntimeError("missing LRMS")
if not mpi_launch_method:
raise RuntimeError("missing mpi launch method")
if not task_launch_method:
raise RuntimeError("missing task launch method")
# massage some values
debug_level = os.environ.get(
'RADICAL_PILOT_AGENT_VERBOSE', logger.level)
try:
debug_level = int(debug_level)
except ValueError:
debug_level = {
'CRITICAL': 1,
'ERROR': 2,
'WARNING': 3,
'WARN': 3,
'INFO': 4,
'DEBUG': 5
}.get(debug_level, 0)
if not queue:
queue = default_queue
if cleanup and isinstance(cleanup, bool):
cleanup = 'luve' # l : log files
# u : unit work dirs
# v : virtualenv
# e : everything (== pilot sandbox)
#
# we never cleanup virtenvs which are not private
if virtenv_mode is not 'private':
cleanup = cleanup.replace('v', '')
sdists = ':'.join(
[ru.sdist_name, saga.sdist_name, sdist_name])
# set mandatory args
bootstrap_args = ""
bootstrap_args += " -b '%s'" % sdists
bootstrap_args += " -c '%s'" % number_cores
bootstrap_args += " -d '%s'" % debug_level
bootstrap_args += " -g '%s'" % virtenv
bootstrap_args += " -j '%s'" % task_launch_method
bootstrap_args += " -k '%s'" % mpi_launch_method
bootstrap_args += " -l '%s'" % lrms
bootstrap_args += " -m '%s'" % database_hostport
bootstrap_args += " -n '%s'" % database_name
bootstrap_args += " -o '%s'" % agent_spawner
bootstrap_args += " -p '%s'" % pilot_id
bootstrap_args += " -q '%s'" % agent_scheduler
bootstrap_args += " -r '%s'" % runtime
bootstrap_args += " -s '%s'" % session_uid
bootstrap_args += " -t '%s'" % agent_type
bootstrap_args += " -u '%s'" % virtenv_mode
bootstrap_args += " -v '%s'" % rp_version
# set optional args
if database_auth:
bootstrap_args += " -a '%s'" % database_auth
if tunnel_bind_device:
bootstrap_args += " -D '%s'" % tunnel_bind_device
if pre_bootstrap:
bootstrap_args += " -e '%s'" % "' -e '".join(
pre_bootstrap)
if forward_tunnel_endpoint:
bootstrap_args += " -f '%s'" % forward_tunnel_endpoint
if python_interpreter:
bootstrap_args += " -i '%s'" % python_interpreter
if cleanup:
bootstrap_args += " -x '%s'" % cleanup
# ------------------------------------------------------
# now that the script is in place and we know where it is,
# we can launch the agent
js_url = saga.Url(js_endpoint)
logger.debug("saga.job.Service ('%s')" % js_url)
if js_url in self._shared_worker_data['job_services']:
js = self._shared_worker_data['job_services'][
js_url]
else:
js = saga.job.Service(js_url,
session=self._session)
self._shared_worker_data['job_services'][
js_url] = js
# ------------------------------------------------------
# Create SAGA Job description and submit the pilot job
jd = saga.job.Description()
jd.executable = "/bin/bash"
jd.arguments = [
"-l pilot_bootstrapper.sh", bootstrap_args
]
jd.working_directory = saga.Url(pilot_sandbox).path
jd.project = project
jd.output = "agent.out"
jd.error = "agent.err"
jd.total_cpu_count = number_cores
jd.wall_time_limit = runtime
jd.total_physical_memory = memory
jd.queue = queue
# Set the SPMD variation only if required
if spmd_variation:
jd.spmd_variation = spmd_variation
if 'RADICAL_PILOT_PROFILE' in os.environ:
jd.environment = {'RADICAL_PILOT_PROFILE': 'TRUE'}
logger.debug("Bootstrap command line: %s %s" %
(jd.executable, jd.arguments))
msg = "Submitting SAGA job with description: %s" % str(
jd.as_dict())
logentries.append(Logentry(msg, logger=logger.debug))
pilotjob = js.create_job(jd)
pilotjob.run()
# do a quick error check
if pilotjob.state == saga.FAILED:
raise RuntimeError("SAGA Job state is FAILED.")
saga_job_id = pilotjob.id
self._shared_worker_data['job_ids'][pilot_id] = [
saga_job_id, js_url
]
msg = "SAGA job submitted with job id %s" % str(
saga_job_id)
logentries.append(Logentry(msg, logger=logger.debug))
#
# ------------------------------------------------------
log_dicts = list()
for le in logentries:
log_dicts.append(le.as_dict())
# Update the Pilot's state to 'PENDING_ACTIVE' if SAGA job submission was successful.
ts = datetime.datetime.utcnow()
ret = pilot_col.update(
{
"_id": pilot_id,
"state": 'Launching'
}, {
"$set": {
"state": PENDING_ACTIVE,
"saga_job_id": saga_job_id
},
"$push": {
"statehistory": {
"state": PENDING_ACTIVE,
"timestamp": ts
}
},
"$pushAll": {
"log": log_dicts
}
})
if ret['n'] == 0:
# could not update, probably because the agent is
# running already. Just update state history and
# jobid then
# FIXME: make sure of the agent state!
ret = pilot_col.update({"_id": pilot_id}, {
"$set": {
"saga_job_id": saga_job_id
},
"$push": {
"statehistory": {
"state": PENDING_ACTIVE,
"timestamp": ts
}
},
"$pushAll": {
"log": log_dicts
}
})
except Exception as e:
# Update the Pilot's state 'FAILED'.
out, err, log = self._get_pilot_logs(
pilot_col, pilot_id)
ts = datetime.datetime.utcnow()
# FIXME: we seem to be unable to bson/json handle saga
# log messages containing an '#'. This shows up here.
# Until we find a clean workaround, make log shorter and
# rely on saga logging to reveal the problem.
msg = "Pilot launching failed! (%s)" % e
logentries.append(Logentry(msg))
log_dicts = list()
log_messages = list()
for le in logentries:
log_dicts.append(le.as_dict())
log_messages.append(le.message)
pilot_col.update(
{
"_id": pilot_id,
"state": {
"$ne": FAILED
}
}, {
"$set": {
"state": FAILED,
"stdout": out,
"stderr": err,
"logfile": log
},
"$push": {
"statehistory": {
"state": FAILED,
"timestamp": ts
}
},
"$pushAll": {
"log": log_dicts
}
})
logger.exception('\n'.join(log_messages))
except SystemExit as e:
logger.exception(
"pilot launcher thread caught system exit -- forcing application shutdown"
)
import thread
thread.interrupt_main()
def schedule_compute_units(self, pilot_uid, units):
"""Request the scheduling of one or more ComputeUnits on a
ComputePilot.
"""
try:
cu_transfer = list()
cu_notransfer = list()
# Get some information about the pilot sandbox from the database.
pilot_info = self._db.get_pilots(pilot_ids=pilot_uid)
# TODO: this hack below relies on what?! That there is just one pilot?
pilot_sandbox = pilot_info[0]['sandbox']
# Split units into two different lists: the first list contains the CUs
# that need file transfer and the second list contains the CUs that
# don't. The latter is added to the pilot directly, while the former
# is added to the transfer queue.
for unit in units:
# Create object for staging status tracking
unit.FTW_Input_Status = None
unit.FTW_Input_Directives = []
unit.Agent_Input_Status = None
unit.Agent_Input_Directives = []
unit.FTW_Output_Status = None
unit.FTW_Output_Directives = []
unit.Agent_Output_Status = None
unit.Agent_Output_Directives = []
# Split the input staging directives over the transfer worker and the agent
input_sds = unit.description.input_staging
if not isinstance(input_sds, list):
# Ugly, but is a workaround for iterating on attribute interface
# TODO: Verify if this piece of code is actually still required
if input_sds:
input_sds = [input_sds]
else:
input_sds = []
for input_sd_entry in input_sds:
action = input_sd_entry['action']
source = Url(input_sd_entry['source'])
target = Url(input_sd_entry['target'])
new_sd = {
'action': action,
'source': str(source),
'target': str(target),
'flags': input_sd_entry['flags'],
'priority': input_sd_entry['priority'],
'state': PENDING
}
if action in [LINK, COPY, MOVE]:
unit.Agent_Input_Directives.append(new_sd)
unit.Agent_Input_Status = PENDING
elif action in [TRANSFER]:
if source.scheme and source.scheme != 'file':
# If there is a scheme and it is different than "file",
# assume a remote pull from the agent
unit.Agent_Input_Directives.append(new_sd)
unit.Agent_Input_Status = PENDING
else:
# Transfer from local to sandbox
unit.FTW_Input_Directives.append(new_sd)
unit.FTW_Input_Status = PENDING
else:
logger.warn(
'Not sure if action %s makes sense for input staging'
% action)
# Split the output staging directives over the transfer worker and the agent
output_sds = unit.description.output_staging
if not isinstance(output_sds, list):
# Ugly, but is a workaround for iterating on att iface
# TODO: Verify if this piece of code is actually still required
if output_sds:
output_sds = [output_sds]
else:
output_sds = []
for output_sds_entry in output_sds:
action = output_sds_entry['action']
source = Url(output_sds_entry['source'])
target = Url(output_sds_entry['target'])
new_sd = {
'action': action,
'source': str(source),
'target': str(target),
'flags': output_sds_entry['flags'],
'priority': output_sds_entry['priority'],
'state': PENDING
}
if action == LINK or action == COPY or action == MOVE:
unit.Agent_Output_Directives.append(new_sd)
unit.Agent_Output_Status = NEW
elif action == TRANSFER:
if target.scheme and target.scheme != 'file':
# If there is a scheme and it is different than "file",
# assume a remote push from the agent
unit.Agent_Output_Directives.append(new_sd)
unit.Agent_Output_Status = NEW
else:
# Transfer from sandbox back to local
unit.FTW_Output_Directives.append(new_sd)
unit.FTW_Output_Status = NEW
else:
logger.warn(
'Not sure if action %s makes sense for output staging'
% action)
if unit.FTW_Input_Directives or unit.Agent_Input_Directives:
log = "Scheduled for data transfer to ComputePilot %s." % pilot_uid
self._db.set_compute_unit_state(unit.uid,
PENDING_INPUT_STAGING, log)
cu_transfer.append(unit)
else:
cu_notransfer.append(unit)
# Bulk-add all non-transfer units-
self._db.assign_compute_units_to_pilot(units=cu_notransfer,
pilot_uid=pilot_uid,
pilot_sandbox=pilot_sandbox)
self._db.assign_compute_units_to_pilot(units=cu_transfer,
pilot_uid=pilot_uid,
pilot_sandbox=pilot_sandbox)
for unit in cu_notransfer:
log = "Scheduled for execution on ComputePilot %s." % pilot_uid
self._db.set_compute_unit_state(unit.uid, PENDING_EXECUTION,
log)
#self._set_state(uid, PENDING_EXECUTION, log)
logger.info(
"Scheduled ComputeUnits %s for execution on ComputePilot '%s'."
% (cu_notransfer, pilot_uid))
except Exception, e:
logger.exception('error in unit manager controller (schedule())')
raise
def run(self):
"""run() is called when the process is started via
PilotManagerController.start().
"""
# make sure to catch sys.exit (which raises SystemExit)
try:
logger.debug(
"Worker thread (ID: %s[%s]) for UnitManager %s started." %
(self.name, self.ident, self._um_id))
# transfer results contains the futures to the results of the
# asynchronous transfer operations.
transfer_results = list()
while not self._stop.is_set():
# =================================================================
#
# Check and update units. This needs to be optimized at
# some point, i.e., state pulling should be conditional
# or triggered by a tailable MongoDB cursor, etc.
unit_list = self._db.get_compute_units(
unit_manager_id=self._um_id)
action = False
for unit in unit_list:
unit_id = str(unit["_id"])
new_state = unit["state"]
if unit_id in self._shared_data:
old_state = self._shared_data[unit_id]["data"]["state"]
else:
old_state = None
self._shared_data_lock.acquire()
self._shared_data[unit_id] = {
'data': unit,
'callbacks': [],
'facade_object': None
}
self._shared_data_lock.release()
self._shared_data_lock.acquire()
self._shared_data[unit_id]["data"] = unit
self._shared_data_lock.release()
if new_state != old_state:
# On a state change, we fire zee callbacks.
logger.info(
"RUN ComputeUnit '%s' state changed from '%s' to '%s'."
% (unit_id, old_state, new_state))
# The state of the unit has changed, We call all
# unit-level callbacks to propagate this.
self.call_unit_state_callbacks(unit_id, new_state)
action = True
# After the first iteration, we are officially initialized!
if not self._initialized.is_set():
self._initialized.set()
# sleep a little if this cycle was idle
if not action:
time.sleep(IDLE_TIME)
except SystemExit as e:
logger.exception(
"unit manager controller thread caught system exit -- forcing application shutdown"
)
import thread
thread.interrupt_main()
finally:
# shut down the autonomous input / output transfer worker(s)
for worker in self._input_file_transfer_worker_pool:
logger.debug("uworker %s stops itransfer %s" %
(self.name, worker.name))
worker.stop()
logger.debug("uworker %s stopped itransfer %s" %
(self.name, worker.name))
for worker in self._output_file_transfer_worker_pool:
logger.debug("uworker %s stops otransfer %s" %
(self.name, worker.name))
worker.stop()
logger.debug("uworker %s stopped otransfer %s" %
(self.name, worker.name))
def register_cancel_pilots_request(self, pilot_ids=None):
"""Registers one or more pilots for cancelation.
"""
if pilot_ids is None:
pilot_ids = list()
for pilot in self._db.get_pilots(pilot_manager_id=self._pm_id) :
pilot_ids.append (str(pilot["_id"]))
self._db.send_command_to_pilot(COMMAND_CANCEL_PILOT, pilot_ids=pilot_ids)
logger.info("Sent 'COMMAND_CANCEL_PILOT' command to pilots %s.", pilot_ids)
# pilots which are in ACTIVE state should now have time to react on the
# CANCEL command sent above. Meanwhile, we'll cancel all pending
# pilots. If that is done, we wait a little, say 10 seconds, to give
# the pilot time to pick up the request and shut down -- but if it does
# not do that, it will get killed the hard way...
delayed_cancel = list()
for pilot_id in pilot_ids :
if pilot_id in self._shared_data :
# read state fomr _shared_data only once, so that it does not
# change under us...
old_state = str(self._shared_data[pilot_id]["data"]["state"])
logger.warn ("actively cancel pilot %s state: %s" % (pilot_id, old_state))
if old_state in [DONE, FAILED, CANCELED] :
logger.warn ("can't actively cancel pilot %s: already in final state" % pilot_id)
elif old_state in [PENDING_LAUNCH, LAUNCHING, PENDING_ACTIVE] :
if pilot_id in self._shared_worker_data['job_ids'] :
try :
job_id, js_url = self._shared_worker_data['job_ids'][pilot_id]
self._shared_data[pilot_id]["data"]["state"] = CANCELING
logger.info ("actively cancel pilot %s (%s, %s)" % (pilot_id, job_id, js_url))
js = self._shared_worker_data['job_services'][js_url]
job = js.get_job (job_id)
job.cancel ()
except Exception as e :
logger.exception ('pilot cancelation failed')
else :
logger.warn ("can't actively cancel pilot %s: no job id known" % pilot_id)
logger.debug (pprint.pformat (self._shared_worker_data))
else :
logger.debug ("delay to actively cancel pilot %s: state %s" % (pilot_id, old_state))
delayed_cancel.append (pilot_id)
else :
logger.warn ("can't actively cancel pilot %s: unknown pilot" % pilot_id)
logger.debug (pprint.pformat (self._shared_data))
# now tend to all delayed cancellation requests (ie. active pilots) --
# if there are any
if delayed_cancel :
# grant some levay to the unruly children...
time.sleep (10)
for pilot_id in delayed_cancel :
if pilot_id in self._shared_worker_data['job_ids'] :
try :
job_id, js_url = self._shared_worker_data['job_ids'][pilot_id]
logger.info ("actively cancel pilot %s (delayed) (%s, %s)" % (pilot_id, job_id, js_url))
js = self._shared_worker_data['job_services'][js_url]
job = js.get_job (job_id)
job.cancel ()
except Exception as e :
logger.warn ('delayed pilot cancelation failed. '
'This is not necessarily a problem.')
else :
logger.warn ("can't actively cancel pilot %s: no job id known (delayed)" % pilot_id)
logger.debug (pprint.pformat (self._shared_worker_data))
def run(self):
"""run() is called when the process is started via
PilotManagerController.start().
"""
# make sure to catch sys.exit (which raises SystemExit)
try :
logger.debug("Worker thread (ID: %s[%s]) for UnitManager %s started." %
(self.name, self.ident, self._um_id))
# transfer results contains the futures to the results of the
# asynchronous transfer operations.
transfer_results = list()
while not self._stop.is_set():
# =================================================================
#
# Check and update units. This needs to be optimized at
# some point, i.e., state pulling should be conditional
# or triggered by a tailable MongoDB cursor, etc.
unit_list = self._db.get_compute_units(unit_manager_id=self._um_id)
action = False
for unit in unit_list:
unit_id = str(unit["_id"])
new_state = unit["state"]
if unit_id in self._shared_data:
old_state = self._shared_data[unit_id]["data"]["state"]
else:
old_state = None
self._shared_data_lock.acquire()
self._shared_data[unit_id] = {
'data': unit,
'callbacks': [],
'facade_object': None
}
self._shared_data_lock.release()
self._shared_data_lock.acquire()
self._shared_data[unit_id]["data"] = unit
self._shared_data_lock.release()
if new_state != old_state:
# On a state change, we fire zee callbacks.
logger.info("RUN ComputeUnit '%s' state changed from '%s' to '%s'." % (unit_id, old_state, new_state))
# The state of the unit has changed, We call all
# unit-level callbacks to propagate this.
self.call_unit_state_callbacks(unit_id, new_state)
action = True
# After the first iteration, we are officially initialized!
if not self._initialized.is_set():
self._initialized.set()
# sleep a little if this cycle was idle
if not action :
time.sleep(IDLE_TIME)
except SystemExit as e :
logger.exception ("unit manager controller thread caught system exit -- forcing application shutdown")
import thread
thread.interrupt_main ()
finally :
# shut down the autonomous input / output transfer worker(s)
for worker in self._input_file_transfer_worker_pool:
logger.debug("uworker %s stops itransfer %s" % (self.name, worker.name))
worker.stop ()
logger.debug("uworker %s stopped itransfer %s" % (self.name, worker.name))
for worker in self._output_file_transfer_worker_pool:
logger.debug("uworker %s stops otransfer %s" % (self.name, worker.name))
worker.stop ()
logger.debug("uworker %s stopped otransfer %s" % (self.name, worker.name))
def run(self):
"""Starts the process when Process.start() is called.
"""
# make sure to catch sys.exit (which raises SystemExit)
try :
# Try to connect to the database and create a tailable cursor.
try:
connection = self.db_connection_info.get_db_handle()
db = connection[self.db_connection_info.dbname]
um_col = db["%s.cu" % self.db_connection_info.session_id]
logger.debug("Connected to MongoDB. Serving requests for UnitManager %s." % self.unit_manager_id)
except Exception as e:
logger.exception("Connection error: %s" % e)
return
while not self._stop.is_set():
compute_unit = None
# See if we can find a ComputeUnit that is waiting for
# output file transfer.
ts = datetime.datetime.utcnow()
compute_unit = um_col.find_and_modify(
query={"unitmanager": self.unit_manager_id,
"FTW_Output_Status": PENDING},
update={"$set" : {"FTW_Output_Status": EXECUTING,
"state": STAGING_OUTPUT},
"$push": {"statehistory": {"state": STAGING_OUTPUT, "timestamp": ts}}},
limit=BULK_LIMIT
)
# FIXME: AM: find_and_modify is not bulkable!
state = STAGING_OUTPUT
#logger.info("OFTW after finding pending cus")
if compute_unit is None:
#logger.info("OFTW no cus, sleep")
# Sleep a bit if no new units are available.
time.sleep(IDLE_TIME)
else:
logger.info("OFTW cu found, progressing ...")
compute_unit_id = None
try:
# We have found a new CU. Now we can process the transfer
# directive(s) wit SAGA.
compute_unit_id = str(compute_unit["_id"])
remote_sandbox = compute_unit["sandbox"]
staging_directives = compute_unit["FTW_Output_Directives"]
logger.info("Processing output file transfers for ComputeUnit %s" % compute_unit_id)
# Loop over all staging directives and execute them.
for sd in staging_directives:
# Check if there was a cancel request
state_doc = um_col.find_one(
{"_id": compute_unit_id},
fields=["state"]
)
if state_doc['state'] == CANCELED:
logger.info("Compute Unit Canceled, interrupting output file transfers.")
state = CANCELED
break
action = sd['action']
source = sd['source']
target = sd['target']
flags = sd['flags']
# Mark the beginning of transfer this StagingDirective
um_col.find_and_modify(
query={"_id" : compute_unit_id,
'FTW_Output_Status': EXECUTING,
'FTW_Output_Directives.state': PENDING,
'FTW_Output_Directives.source': sd['source'],
'FTW_Output_Directives.target': sd['target'],
},
update={'$set': {'FTW_Output_Directives.$.state': EXECUTING},
'$push': {'log': {
'timestamp': datetime.datetime.utcnow(),
'message' : 'Starting transfer of %s' % source}}
}
)
abs_source = "%s/%s" % (remote_sandbox, source)
if os.path.basename(target) == target:
abs_target = "file://localhost%s" % os.path.join(os.getcwd(), target)
else:
abs_target = "file://localhost%s" % os.path.abspath(target)
log_msg = "Transferring output file %s -> %s" % (abs_source, abs_target)
logger.debug(log_msg)
logger.debug ("saga.fs.File ('%s')" % saga.Url(abs_source))
output_file = saga.filesystem.File(saga.Url(abs_source),
session=self._session
)
if CREATE_PARENTS in flags:
copy_flags = saga.filesystem.CREATE_PARENTS
else:
copy_flags = 0
logger.debug ("saga.fs.File.copy ('%s')" % saga.Url(abs_target))
output_file.copy(saga.Url(abs_target), flags=copy_flags)
output_file.close()
# If all went fine, update the state of this StagingDirective to Done
um_col.find_and_modify(
query={"_id" : compute_unit_id,
'FTW_Output_Status': EXECUTING,
'FTW_Output_Directives.state': EXECUTING,
'FTW_Output_Directives.source': sd['source'],
'FTW_Output_Directives.target': sd['target'],
},
update={'$set': {'FTW_Output_Directives.$.state': DONE},
'$push': {'log': {
'timestamp': datetime.datetime.utcnow(),
'message' : log_msg}}
}
)
except Exception as e :
# Update the CU's state to 'FAILED'.
ts = datetime.datetime.utcnow()
log_message = "Output transfer failed: %s" % e
# TODO: not only mark the CU as failed, but also the specific Directive
um_col.update({'_id': compute_unit_id}, {
'$set': {'state': FAILED},
'$push': {
'statehistory': {'state': FAILED, 'timestamp': ts},
'log': {'message': log_message, 'timestamp': ts}
}
})
logger.exception (log_message)
# Code below is only to be run by the "first" or only worker
if self._worker_number > 1:
continue
# If the CU was canceled we can skip the remainder of this loop.
if state == CANCELED:
continue
#
# Check to see if there are more active Directives, if not, we are Done
#
cursor_w = um_col.find({"unitmanager": self.unit_manager_id,
"$or": [ {"Agent_Output_Status": EXECUTING},
{"FTW_Output_Status": EXECUTING}
]
}
)
# Iterate over all the returned CUs (if any)
for cu in cursor_w:
# See if there are any FTW Output Directives still pending
if cu['FTW_Output_Status'] == EXECUTING and \
not any(d['state'] == EXECUTING or d['state'] == PENDING for d in cu['FTW_Output_Directives']):
# All Output Directives for this FTW are done, mark the CU accordingly
um_col.update({"_id": cu["_id"]},
{'$set': {'FTW_Output_Status': DONE},
'$push': {'log': {
'timestamp': datetime.datetime.utcnow(),
'message' : 'All FTW output staging directives done - %d.' % self._worker_number}}
}
)
# See if there are any Agent Output Directives still pending
if cu['Agent_Output_Status'] == EXECUTING and \
not any(d['state'] == EXECUTING or d['state'] == PENDING for d in cu['Agent_Output_Directives']):
# All Output Directives for this Agent are done, mark the CU accordingly
um_col.update({"_id": cu["_id"]},
{'$set': {'Agent_Output_Status': DONE},
'$push': {'log': {
'timestamp': datetime.datetime.utcnow(),
'message' : 'All Agent Output Staging Directives done-%d.' % self._worker_number}}
}
)
#
# Check for all CUs if both Agent and FTW staging is done, we can then mark the CU Done
#
ts = datetime.datetime.utcnow()
um_col.find_and_modify(
query={"unitmanager": self.unit_manager_id,
# TODO: Now that our state model is linear,
# we probably don't need to check Agent_Output_Status anymore.
# Given that it is not updates by the agent currently, disable it here.
#"Agent_Output_Status": { "$in": [ None, DONE ] },
"FTW_Output_Status": { "$in": [ None, DONE ] },
"state": STAGING_OUTPUT
},
update={"$set": {
"state": DONE
},
"$push": {
"statehistory": {"state": DONE, "timestamp": ts}
}
}
)
except SystemExit as e :
logger.exception("output file transfer thread caught system exit -- forcing application shutdown")
import thread
thread.interrupt_main ()
def run(self):
"""Starts the process when Process.start() is called.
"""
# make sure to catch sys.exit (which raises SystemExit)
try:
# Get directory where this module lives
mod_dir = os.path.dirname(os.path.realpath(__file__))
# Try to connect to the database
try:
connection = self.db_connection_info.get_db_handle()
db = connection[self.db_connection_info.dbname]
pilot_col = db["%s.p" % self.db_connection_info.session_id]
logger.debug("Connected to MongoDB. Serving requests for PilotManager %s." % self.pilot_manager_id)
except Exception as e:
logger.exception("Connection error: %s" % e)
return
last_job_check = time.time()
while not self._stop.is_set():
# Periodically, we pull up all ComputePilots that are pending
# execution or were last seen executing and check if the corresponding
# SAGA job is still pending in the queue. If that is not the case,
# we assume that the job has failed for some reasons and update
# the state of the ComputePilot accordingly.
if last_job_check + JOB_CHECK_INTERVAL < time.time():
last_job_check = time.time()
self.check_pilot_states(pilot_col)
# See if we can find a ComputePilot that is waiting to be launched.
# If we find one, we use SAGA to create a job service, a job
# description and a job that is then send to the local or remote
# queueing system. If this succedes, we set the ComputePilot's
# state to pending, otherwise to failed.
compute_pilot = None
ts = datetime.datetime.utcnow()
compute_pilot = pilot_col.find_and_modify(
query={"pilotmanager": self.pilot_manager_id, "state": PENDING_LAUNCH},
update={
"$set": {"state": LAUNCHING},
"$push": {"statehistory": {"state": LAUNCHING, "timestamp": ts}},
},
)
if not compute_pilot:
time.sleep(IDLE_TIMER)
else:
try:
# ------------------------------------------------------
#
# LAUNCH THE PILOT AGENT VIA SAGA
#
logentries = []
pilot_id = str(compute_pilot["_id"])
logger.info("Launching ComputePilot %s" % pilot_id)
# ------------------------------------------------------
# Database connection parameters
session_uid = self.db_connection_info.session_id
database_url = self.db_connection_info.dburl
database_name = self.db_connection_info.dbname
database_auth = self.db_connection_info.dbauth
# ------------------------------------------------------
# pilot description and resource configuration
number_cores = compute_pilot["description"]["cores"]
runtime = compute_pilot["description"]["runtime"]
queue = compute_pilot["description"]["queue"]
project = compute_pilot["description"]["project"]
cleanup = compute_pilot["description"]["cleanup"]
resource_key = compute_pilot["description"]["resource"]
schema = compute_pilot["description"]["access_schema"]
memory = compute_pilot["description"]["memory"]
pilot_sandbox = compute_pilot["sandbox"]
global_sandbox = compute_pilot["global_sandbox"]
# we expand and exchange keys in the resource config,
# depending on the selected schema so better use a deep
# copy..
resource_cfg = self._session.get_resource_config(resource_key, schema)
# import pprint
# pprint.pprint (resource_cfg)
# ------------------------------------------------------
# get parameters from cfg, set defaults where needed
agent_mongodb_endpoint = resource_cfg.get("agent_mongodb_endpoint", database_url)
agent_spawner = resource_cfg.get("agent_spawner", DEFAULT_AGENT_SPAWNER)
agent_type = resource_cfg.get("agent_type", DEFAULT_AGENT_TYPE)
agent_scheduler = resource_cfg.get("agent_scheduler")
tunnel_bind_device = resource_cfg.get("tunnel_bind_device")
default_queue = resource_cfg.get("default_queue")
forward_tunnel_endpoint = resource_cfg.get("forward_tunnel_endpoint")
js_endpoint = resource_cfg.get("job_manager_endpoint")
lrms = resource_cfg.get("lrms")
mpi_launch_method = resource_cfg.get("mpi_launch_method")
pre_bootstrap = resource_cfg.get("pre_bootstrap")
python_interpreter = resource_cfg.get("python_interpreter")
spmd_variation = resource_cfg.get("spmd_variation")
task_launch_method = resource_cfg.get("task_launch_method")
rp_version = resource_cfg.get("rp_version", DEFAULT_RP_VERSION)
virtenv_mode = resource_cfg.get("virtenv_mode", DEFAULT_VIRTENV_MODE)
virtenv = resource_cfg.get("virtenv", DEFAULT_VIRTENV)
stage_cacerts = resource_cfg.get("stage_cacerts", "False")
if stage_cacerts.lower() == "true":
stage_cacerts = True
else:
stage_cacerts = False
# expand variables in virtenv string
virtenv = virtenv % {
"pilot_sandbox": saga.Url(pilot_sandbox).path,
"global_sandbox": saga.Url(global_sandbox).path,
}
# Check for deprecated global_virtenv
global_virtenv = resource_cfg.get("global_virtenv")
if global_virtenv:
logger.warn("'global_virtenv' keyword is deprecated -- use 'virtenv' and 'virtenv_mode'")
virtenv = global_virtenv
virtenv_mode = "use"
# set default scheme, host, port and dbname if not set
db_url = saga.Url(agent_mongodb_endpoint)
if not db_url.scheme:
db_url.scheme = "mongodb"
if not db_url.host:
db_url.host = "localhost"
if not db_url.port:
db_url.port = 27017
if not database_name:
database_name = "radicalpilot"
# Create a host:port string for use by the bootstrapper.
database_hostport = "%s:%d" % (db_url.host, db_url.port)
# ------------------------------------------------------
# Copy the bootstrap shell script. This also creates
# the sandbox. We use always "default_bootstrapper.sh"
bootstrapper = "default_bootstrapper.sh"
bootstrapper_path = os.path.abspath("%s/../bootstrapper/%s" % (mod_dir, bootstrapper))
msg = "Using bootstrapper %s" % bootstrapper_path
logentries.append(Logentry(msg, logger=logger.info))
bs_script_url = saga.Url("file://localhost/%s" % bootstrapper_path)
bs_script_tgt = saga.Url("%s/pilot_bootstrapper.sh" % pilot_sandbox)
msg = "Copying bootstrapper '%s' to agent sandbox (%s)." % (bs_script_url, bs_script_tgt)
logentries.append(Logentry(msg, logger=logger.debug))
bs_script = saga.filesystem.File(bs_script_url, session=self._session)
bs_script.copy(bs_script_tgt, flags=saga.filesystem.CREATE_PARENTS)
bs_script.close()
# ------------------------------------------------------
# the version of the agent is derived from
# rp_version, which has the following format
# and interpretation:
#
# case rp_version:
# @<token>:
# @tag/@branch/@commit: # no sdist staging
# git clone $github_base radical.pilot.src
# (cd radical.pilot.src && git checkout token)
# pip install -t $VIRTENV/rp_install/ radical.pilot.src
# rm -rf radical.pilot.src
# export PYTHONPATH=$VIRTENV/rp_install:$PYTHONPATH
#
# release: # no sdist staging
# pip install -t $VIRTENV/rp_install radical.pilot
# export PYTHONPATH=$VIRTENV/rp_install:$PYTHONPATH
#
# local: # needs sdist staging
# tar zxf $sdist.tgz
# pip install -t $VIRTENV/rp_install $sdist/
# export PYTHONPATH=$VIRTENV/rp_install:$PYTHONPATH
#
# debug: # needs sdist staging
# tar zxf $sdist.tgz
# pip install -t $SANDBOX/rp_install $sdist/
# export PYTHONPATH=$SANDBOX/rp_install:$PYTHONPATH
#
# installed: # no sdist staging
# true
# esac
#
# virtenv_mode
# private : error if ve exists, otherwise create, then use
# update : update if ve exists, otherwise create, then use
# create : use if ve exists, otherwise create, then use
# use : use if ve exists, otherwise error, then exit
# recreate: delete if ve exists, otherwise create, then use
#
# examples :
# [email protected]
# virtenv@devel
# virtenv@release
# virtenv@installed
# stage@local
# stage@/tmp/my_agent.py
#
# Note that some combinations may be invalid,
# specifically in the context of virtenv_mode. If, for
# example, virtenv_mode is 'use', then the 'virtenv:tag'
# will not make sense, as the virtenv is not updated.
# In those cases, the virtenv_mode is honored, and
# a warning is printed.
#
# Also, the 'stage' mode can only be combined with the
# 'local' source, or with a path to the agent (relative
# to mod_dir, or absolute).
#
# A rp_version which does not adhere to the
# above syntax is ignored, and the fallback stage@local
# is used.
if not rp_version.startswith("@") and not rp_version in ["installed", "local", "debug"]:
raise ValueError("invalid rp_version '%s'" % rp_version)
stage_sdist = True
if rp_version in ["installed", "release"]:
stage_sdist = False
if rp_version.startswith("@"):
stage_sdist = False
rp_version = rp_version[1:] # strip '@'
# ------------------------------------------------------
# Copy the rp sdist if needed. We actually also stage
# the sdists for radical.utils and radical.saga, so that
# we have the complete stack to install...
if stage_sdist:
for path in [ru.sdist_path, saga.sdist_path, sdist_path]:
sdist_url = saga.Url("file://localhost/%s" % path)
msg = "Copying sdist '%s' to sdist sandbox (%s)." % (sdist_url, pilot_sandbox)
logentries.append(Logentry(msg, logger=logger.debug))
sdist_file = saga.filesystem.File(sdist_url)
sdist_file.copy("%s/" % (str(pilot_sandbox)))
sdist_file.close()
# ------------------------------------------------------
# some machines cannot run pip due to outdated ca certs.
# For those, we also stage an updated cert bundle
if stage_cacerts:
cc_path = os.path.abspath("%s/../bootstrapper/%s" % (mod_dir, "cacert.pem.gz"))
cc_script_url = saga.Url("file://localhost/%s" % cc_path)
cc_script_tgt = saga.Url("%s/cacert.pem.gz" % pilot_sandbox)
cc_script = saga.filesystem.File(cc_script_url, session=self._session)
cc_script.copy(cc_script_tgt, flags=saga.filesystem.CREATE_PARENTS)
cc_script.close()
# ------------------------------------------------------
# sanity checks
if not agent_spawner:
raise RuntimeError("missing agent spawner")
if not agent_scheduler:
raise RuntimeError("missing agent scheduler")
if not lrms:
raise RuntimeError("missing LRMS")
if not mpi_launch_method:
raise RuntimeError("missing mpi launch method")
if not task_launch_method:
raise RuntimeError("missing task launch method")
# massage some values
debug_level = os.environ.get("RADICAL_PILOT_AGENT_VERBOSE", logger.level)
try:
debug_level = int(debug_level)
except ValueError:
debug_level = {
"CRITICAL": 1,
"ERROR": 2,
"WARNING": 3,
"WARN": 3,
"INFO": 4,
"DEBUG": 5,
}.get(debug_level, 0)
if not queue:
queue = default_queue
if cleanup and isinstance(cleanup, bool):
cleanup = "luve" # l : log files
# u : unit work dirs
# v : virtualenv
# e : everything (== pilot sandbox)
#
# we never cleanup virtenvs which are not private
if virtenv_mode is not "private":
cleanup = cleanup.replace("v", "")
sdists = ":".join([ru.sdist_name, saga.sdist_name, sdist_name])
# set mandatory args
bootstrap_args = ""
bootstrap_args += " -b '%s'" % sdists
bootstrap_args += " -c '%s'" % number_cores
bootstrap_args += " -d '%s'" % debug_level
bootstrap_args += " -g '%s'" % virtenv
bootstrap_args += " -j '%s'" % task_launch_method
bootstrap_args += " -k '%s'" % mpi_launch_method
bootstrap_args += " -l '%s'" % lrms
bootstrap_args += " -m '%s'" % database_hostport
bootstrap_args += " -n '%s'" % database_name
bootstrap_args += " -o '%s'" % agent_spawner
bootstrap_args += " -p '%s'" % pilot_id
bootstrap_args += " -q '%s'" % agent_scheduler
bootstrap_args += " -r '%s'" % runtime
bootstrap_args += " -s '%s'" % session_uid
bootstrap_args += " -t '%s'" % agent_type
bootstrap_args += " -u '%s'" % virtenv_mode
bootstrap_args += " -v '%s'" % rp_version
# set optional args
if database_auth:
bootstrap_args += " -a '%s'" % database_auth
if tunnel_bind_device:
bootstrap_args += " -D '%s'" % tunnel_bind_device
if pre_bootstrap:
bootstrap_args += " -e '%s'" % "' -e '".join(pre_bootstrap)
if forward_tunnel_endpoint:
bootstrap_args += " -f '%s'" % forward_tunnel_endpoint
if python_interpreter:
bootstrap_args += " -i '%s'" % python_interpreter
if cleanup:
bootstrap_args += " -x '%s'" % cleanup
# ------------------------------------------------------
# now that the script is in place and we know where it is,
# we can launch the agent
js_url = saga.Url(js_endpoint)
logger.debug("saga.job.Service ('%s')" % js_url)
if js_url in self._shared_worker_data["job_services"]:
js = self._shared_worker_data["job_services"][js_url]
else:
js = saga.job.Service(js_url, session=self._session)
self._shared_worker_data["job_services"][js_url] = js
# ------------------------------------------------------
# Create SAGA Job description and submit the pilot job
jd = saga.job.Description()
jd.executable = "/bin/bash"
jd.arguments = ["-l pilot_bootstrapper.sh", bootstrap_args]
jd.working_directory = saga.Url(pilot_sandbox).path
jd.project = project
jd.output = "agent.out"
jd.error = "agent.err"
jd.total_cpu_count = number_cores
jd.wall_time_limit = runtime
jd.total_physical_memory = memory
jd.queue = queue
# Set the SPMD variation only if required
if spmd_variation:
jd.spmd_variation = spmd_variation
if "RADICAL_PILOT_PROFILE" in os.environ:
jd.environment = {"RADICAL_PILOT_PROFILE": "TRUE"}
logger.debug("Bootstrap command line: %s %s" % (jd.executable, jd.arguments))
msg = "Submitting SAGA job with description: %s" % str(jd.as_dict())
logentries.append(Logentry(msg, logger=logger.debug))
pilotjob = js.create_job(jd)
pilotjob.run()
# do a quick error check
if pilotjob.state == saga.FAILED:
raise RuntimeError("SAGA Job state is FAILED.")
saga_job_id = pilotjob.id
self._shared_worker_data["job_ids"][pilot_id] = [saga_job_id, js_url]
msg = "SAGA job submitted with job id %s" % str(saga_job_id)
logentries.append(Logentry(msg, logger=logger.debug))
#
# ------------------------------------------------------
log_dicts = list()
for le in logentries:
log_dicts.append(le.as_dict())
# Update the Pilot's state to 'PENDING_ACTIVE' if SAGA job submission was successful.
ts = datetime.datetime.utcnow()
ret = pilot_col.update(
{"_id": pilot_id, "state": "Launching"},
{
"$set": {"state": PENDING_ACTIVE, "saga_job_id": saga_job_id},
"$push": {"statehistory": {"state": PENDING_ACTIVE, "timestamp": ts}},
"$pushAll": {"log": log_dicts},
},
)
if ret["n"] == 0:
# could not update, probably because the agent is
# running already. Just update state history and
# jobid then
# FIXME: make sure of the agent state!
ret = pilot_col.update(
{"_id": pilot_id},
{
"$set": {"saga_job_id": saga_job_id},
"$push": {"statehistory": {"state": PENDING_ACTIVE, "timestamp": ts}},
"$pushAll": {"log": log_dicts},
},
)
except Exception as e:
# Update the Pilot's state 'FAILED'.
out, err, log = self._get_pilot_logs(pilot_col, pilot_id)
ts = datetime.datetime.utcnow()
# FIXME: we seem to be unable to bson/json handle saga
# log messages containing an '#'. This shows up here.
# Until we find a clean workaround, make log shorter and
# rely on saga logging to reveal the problem.
msg = "Pilot launching failed! (%s)" % e
logentries.append(Logentry(msg))
log_dicts = list()
log_messages = list()
for le in logentries:
log_dicts.append(le.as_dict())
log_messages.append(le.message)
pilot_col.update(
{"_id": pilot_id, "state": {"$ne": FAILED}},
{
"$set": {"state": FAILED, "stdout": out, "stderr": err, "logfile": log},
"$push": {"statehistory": {"state": FAILED, "timestamp": ts}},
"$pushAll": {"log": log_dicts},
},
)
logger.exception("\n".join(log_messages))
except SystemExit as e:
logger.exception("pilot launcher thread caught system exit -- forcing application shutdown")
import thread
thread.interrupt_main()
