class ComputeDataService(ComputeDataService):
""" B{ComputeDataService (CDS).}
The ComputeDataService is the application's interface to submit
ComputeUnits and PilotData/DataUnit to the Pilot-Manager
in the P* Model.
"""
CDS_ID_PREFIX = "cds-"
def __init__(self, cds_url=None):
""" Create a ComputeDataService object.
Keyword arguments:
cds_url -- Reconnect to an existing CDS (optional).
"""
# Pilot Data
self.data_units = {}
self.pilot_data_services = []
# Pilot Job
self.compute_units = {}
self.pilot_job_services = []
if cds_url == None:
self.id = self.CDS_ID_PREFIX + str(uuid.uuid1())
application_url = CoordinationAdaptor.get_base_url(
pilot.application_id)
self.url = CoordinationAdaptor.add_cds(application_url, self)
else:
self.id = self.__get_cds_id(cds_url)
self.url = cds_url
# Background Thread for scheduling
self.scheduler = Scheduler()
self.cu_queue = Queue.Queue()
self.du_queue = Queue.Queue()
self.stop = threading.Event()
self.scheduler_thread = threading.Thread(target=self._scheduler_thread)
self.scheduler_thread.daemon = True
self.scheduler_thread.start()
def __get_cds_id(self, cds_url):
start = cds_url.index(self.CDS_ID_PREFIX)
end = cds_url.index("/", start)
return cds_url[start:end]
###########################################################################
# Pilot Compute
def add_pilot_compute_service(self, pcs):
""" Add a PilotComputeService to this CDS.
@param pcs: The PilotComputeService to which this ComputeDataService will connect.
"""
self.pilot_job_services.append(pcs)
CoordinationAdaptor.update_cds(self.url, self)
def remove_pilot_compute_service(self, pcs):
""" Remove a PilotJobService from this CDS.
Note that it won't cancel the PilotComputeService, it will just no
longer be connected to this CDS.
Keyword arguments:
@param pcs: The PilotComputeService to remove from this ComputeDataService.
"""
self.pilot_job_services.remove(pcs)
CoordinationAdaptor.update_cds(self.url, self)
def submit_compute_unit(self, compute_unit_description):
""" Submit a CU to this Compute Data Service.
@param compute_unit_description: The ComputeUnitDescription from the application
@return: ComputeUnit object
"""
cu = ComputeUnit(compute_unit_description, self)
self.compute_units[cu.id] = cu
self.cu_queue.put(cu)
CoordinationAdaptor.update_cds(self.url, self)
return cu
def list_pilot_compute(self):
""" List all pilot compute of CDS """
return self.pilot_job_service
###########################################################################
# Pilot Data
def add_pilot_data_service(self, pds):
""" Add a PilotDataService
@param pds: The PilotDataService to add.
"""
self.pilot_data_services.append(pds)
CoordinationAdaptor.update_cds(self.url, self)
def remove_pilot_data_service(self, pds):
""" Remove a PilotDataService
@param pds: The PilotDataService to remove
"""
self.pilot_data_services.remove(pds)
CoordinationAdaptor.update_cds(self.url, self)
def list_pilot_data(self):
""" List all pilot data of CDS """
return self.pilot_data_services
def list_data_units(self):
""" List all DUs of CDS """
return self.data_units.items()
def get_data_unit(self, du_id):
if self.data_units.has_key(du_id):
return self.data_units[du_id]
return None
def submit_data_unit(self, data_unit_description):
""" creates a data unit object and binds it to a physical resource (a pilotdata) """
du = DataUnit(pilot_data=None,
data_unit_description=data_unit_description)
self.data_units[du.id] = du
self.du_queue.put(du)
# queue currently not persisted
CoordinationAdaptor.update_cds(self.url, self)
return du
def cancel(self):
""" Cancel the CDS.
All associated PD and PC objects are canceled.
"""
# terminate background thread
self.stop.set()
CoordinationAdaptor.delete_cds(self.url)
def wait(self):
""" Waits for CUs and DUs. Return after all DU's have been placed (i.e. in state Running)
and all CU's have been completed (i.e. in state Done) or if a fault has occurred or
the user has cancelled a CU or DU.
"""
try:
logger.debug("### START WAIT ###")
self.cu_queue.join()
logger.debug("CU queue empty")
self.du_queue.join()
logger.debug("DU queue empty")
for i in self.data_units.values():
i.wait()
logger.debug("DUs done")
for i in self.compute_units.values():
i.wait()
logger.debug("CUs done")
logger.debug("### END WAIT ###")
except:
logger.debug("Ctrl-c detected. Terminating ComputeDataService...")
self.cancel()
raise KeyboardInterrupt
def get_state(self):
"@return: State of the ComputeDataService"
return self.state
def get_id(self):
"@return: id of ComputeDataService"
return str(self.id)
def __del__(self):
""" Make sure that background thread terminates"""
self.cancel()
###########################################################################
# Internal Scheduling
def __update_scheduler_resources(self):
logger.debug("__update_scheduler_resources")
pd = [s for i in self.pilot_data_services for s in i.list_pilots()]
self.scheduler.set_pilot_data(pd)
pj = [p for i in self.pilot_job_services for p in i.list_pilots()]
logger.debug("Pilot-Jobs: " + str(pj))
self.scheduler.set_pilot_jobs(pj)
def _schedule_du(self, du):
""" Schedule DU to a suitable pilot data
Currently one level of scheduling is used:
1.) Add all resources managed by the contained PDS
2.) Select one resource
"""
logger.debug("Schedule PD")
self.__update_scheduler_resources()
selected_pilot_data = self.scheduler.schedule_pilot_data(
du.data_unit_description)
return selected_pilot_data
def _schedule_cu(self, cu):
logger.debug("Schedule CU")
self.__update_scheduler_resources()
selected_pilot_job = self.scheduler.schedule_pilot_job(
cu.compute_unit_description)
return selected_pilot_job
def _scheduler_thread(self):
while True and self.stop.isSet() == False:
try:
#logger.debug("Scheduler Thread: " + str(self.__class__) + " Pilot Data")
du = self.du_queue.get(True, 1)
# check whether this is a real du object
if isinstance(du, DataUnit):
pd = self._schedule_du(du)
if (pd != None):
logger.debug("Initiate Transfer to PD.")
du.add_pilot_data(pd)
logger.debug("Transfer to PD finished.")
du._update_state(State.Running)
self.du_queue.task_done()
else:
self.du_queue.task_done()
self.du_queue.put(du)
except Queue.Empty:
pass
try:
#logger.debug("Scheduler Thread: " + str(self.__class__) + " Pilot Job")
cu = self.cu_queue.get(True, 1)
if isinstance(cu, ComputeUnit):
pj = self._schedule_cu(cu)
if pj != None:
cu = self.__expand_working_directory(cu, pj)
pj._submit_cu(cu)
self.cu_queue.task_done()
else:
logger.debug("No resource found.")
self.cu_queue.task_done()
self.cu_queue.put(cu)
except Queue.Empty:
pass
except:
exc_type, exc_value, exc_traceback = sys.exc_info()
logger.error("*** print_tb:")
traceback.print_tb(exc_traceback, limit=1, file=sys.stderr)
logger.error("*** print_exception:")
traceback.print_exception(exc_type,
exc_value,
exc_traceback,
limit=2,
file=sys.stderr)
if self.cu_queue.empty() and self.du_queue.empty():
time.sleep(5)
logger.debug("Re-Scheduler terminated")
def __expand_working_directory(self, compute_unit, pilot_job):
"""
DEPRECATED capability!
Expand pilotdata:// url specified in the compute_unit_description
to a local url on the machine of the PJ
pilotdata://localhost/434bfc5c-23fd-11e1-a43f-00264a13ca4c
to
/tmp/pilotstore//434bfc5c-23fd-11e1-a43f-00264a13ca4c on machine running pilot_job
"""
#=======================================================================
# if compute_unit.compute_unit_description.has_key("working_directory"):
# working_directory=compute_unit.compute_unit_description["working_directory"]
# if working_directory.find(DataUnit.DU_ID_PREFIX)!=-1:
# pilot_data_url = working_directory
# pj_description = pilot_job.pilot_compute_description
# pj_dc_affinity = pj_description["affinity_datacenter_label"]
# pj_machine_affinity = pj_description["affinity_machine_label"]
# pd = [s for i in self.pilot_data_services for s in i.list_pilots()]
#
# # find all pilot stores with the same affinity
# candidate_pd = []
# for i in pd:
# pd_description = i.pilot_data_description
# pd_dc_affinity = pd_description["affinity_datacenter_label"]
# pd_machine_affinity = pd_description["affinity_machine_label"]
# if pd_dc_affinity == pj_dc_affinity and pd_machine_affinity == pj_machine_affinity:
# candidate_pd.append(i)
#
# # check whether required pilot_data is part of pilot_data
# target_pd = None
# target_du = None
# for pd in candidate_pd:
# for du in pd.list_data_units():
# logger.debug("DU URL:%s"%(du.url))
# if du.url == pilot_data_url:
# logger.debug("Found PD %s at %s"%(du.url, pd.service_url))
# target_pd = pd
# target_du = du
# break
# if target_du == None:
# self.__stage_du_to_pj(pilot_data_url, pilot_job)
#
# if target_pd!=None:
# pd_url = target_pd.url_for_du(target_du)
# components = urlparse.urlparse(pd_url)
# compute_unit.compute_unit_description["working_directory"] = components.path
# compute_unit._update_compute_unit_description(compute_unit.compute_unit_description)
# logger.debug("__expand_working_directory %s: Set working directory to %s"%(pilot_data_url, compute_unit.compute_unit_description["working_directory"]))
# return compute_unit
#
#=======================================================================
return compute_unit
def __stage_du_to_pj(self, pilotdata, pilotjob):
"""
stage required files to machine of pilot job
"""
pass
def __find_pd_at_pj_resource(self, pilotjob):
pass
class ComputeDataService(ComputeDataService):
""" TROY WorkDataService.
The WorkDataService is the application's interface to submit
ComputeUnits and PilotData/DataUnit to the Pilot-Manager
in the P* Model.
"""
CDS_ID_PREFIX="cds-"
def __init__(self, cds_url=None):
""" Create a Work Data Service object.
Keyword arguments:
cds_url -- Reconnect to an existing WDS (optional).
"""
# Pilot Data
self.data_units={}
self.pilot_data_services=[]
# Pilot Job
self.compute_units={}
self.pilot_job_services=[]
if cds_url == None:
self.id=self.CDS_ID_PREFIX + str(uuid.uuid1())
application_url = CoordinationAdaptor.get_base_url(pilot.application_id)
self.url = CoordinationAdaptor.add_cds(application_url, self)
else:
self.id = self.__get_cds_id(cds_url)
self.url = cds_url
# Background Thread for scheduling
self.scheduler = Scheduler()
self.cu_queue = Queue.Queue()
self.du_queue = Queue.Queue()
self.stop=threading.Event()
self.scheduler_thread=threading.Thread(target=self._scheduler_thread)
self.scheduler_thread.start()
def __get_cds_id(self, cds_url):
start = cds_url.index(self.CDS_ID_PREFIX)
end =cds_url.index("/", start)
return cds_url[start:end]
###########################################################################
# Pilot Job
def add_pilot_compute_service(self, pjs):
""" Add a PilotJobService to this CDS.
Keyword arguments:
pilotjob_services -- The PilotJob Service(s) to which this
Work Unit Service will connect.
Return:
Result
"""
self.pilot_job_services.append(pjs)
CoordinationAdaptor.update_cds(self.url, self)
def remove_pilot_compute_service(self, pjs):
""" Remove a PilotJobService from this CDS.
Note that it won't cancel the PilotJobService, it will just no
longer be connected to this WUS.
Keyword arguments:
pilotjob_services -- The PilotJob Service(s) to remove from this
Work Unit Service.
Return:
Result
"""
self.pilot_job_services.remove(pjs)
CoordinationAdaptor.update_cds(self.url, self)
def submit_compute_unit(self, compute_unit_description):
""" Submit a WU to this Work Unit Service.
Keyword argument:
cud -- The ComputeUnitDescription from the application
Return:
ComputeUnit object
"""
cu = ComputeUnit(compute_unit_description, self)
self.compute_units[cu.id]=cu
self.cu_queue.put(cu)
CoordinationAdaptor.update_cds(self.url, self)
return cu
###########################################################################
# Pilot Data
def add_pilot_data_service(self, pds):
""" Add a PilotDataService
Keyword arguments:
pds -- The PilotDataService to add.
Return:
None
"""
self.pilot_data_services.append(pds)
CoordinationAdaptor.update_cds(self.url, self)
def remove_pilot_data_service(self, pds):
""" Remove a PilotDataService
Keyword arguments:
pds -- The PilotDataService to remove
Return:
None
"""
self.pilot_data_services.remove(pds)
CoordinationAdaptor.update_cds(self.url, self)
def list_pilot_compute(self):
""" List all pilot compute of CDS """
return self.pilot_job_service
def list_pilot_data(self):
""" List all pilot data of CDS """
return self.pilot_data_services
def list_data_units(self):
""" List all DUs of CDS """
return self.data_units.items()
def get_data_unit(self, du_id):
if self.data_units.has_key(du_id):
return self.data_units[du_id]
return None
def submit_data_unit(self, data_unit_description):
""" creates a data unit object and binds it to a physical resource (a pilotdata) """
du = DataUnit(pilot_data_service=self,
data_unit_description=data_unit_description)
self.data_units[du.id]=du
self.du_queue.put(du)
# queue currently not persisted
CoordinationAdaptor.update_cds(self.url, self)
return du
def cancel(self):
""" Cancel the PDS.
All associated PD objects are deleted and removed from the associated pilot stores.
Keyword arguments:
None
Return:
None
"""
# terminate background thread
self.stop.set()
CoordinationAdaptor.delete_cds(self.url)
def wait(self):
""" Waits for CUs and DUs
Return if all du's are running
AND
cu's are done
"""
self.cu_queue.join()
self.du_queue.join()
for i in self.data_units.values():
i.wait()
for i in self.compute_units.values():
i.wait()
#[pc.wait() for i in self.pilot_job_services for pc in i.list_pilots()]
#[pd.wait() for i in self.pilot_data_services for pd in i.list_pilots()]
def get_state(self):
return self.state
def get_id(self):
return str(self.id)
###########################################################################
# Internal Scheduling
def __update_scheduler_resources(self):
logging.debug("__update_scheduler_resources")
pd = [s for i in self.pilot_data_services for s in i.list_pilots()]
self.scheduler.set_pilot_data(pd)
pj = [p for i in self.pilot_job_services for p in i.list_pilots()]
logging.debug("Pilot-Jobs: " + str(pj))
self.scheduler.set_pilot_jobs(pj)
def _schedule_du(self, du):
""" Schedule DU to a suitable pilot data
Currently one level of scheduling is used:
1.) Add all resources managed by the contained PDS
2.) Select one resource
"""
logging.debug("Schedule PD")
self.__update_scheduler_resources()
selected_pilot_data = self.scheduler.schedule_pilot_data(du.data_unit_description)
return selected_pilot_data
def _schedule_cu(self, cu):
logging.debug("Schedule CU")
self.__update_scheduler_resources()
selected_pilot_job = self.scheduler.schedule_pilot_job(cu.compute_unit_description)
return selected_pilot_job
def _scheduler_thread(self):
while True and self.stop.isSet()==False:
try:
logging.debug("Scheduler Thread: " + str(self.__class__) + " Pilot Data")
du = self.du_queue.get(True, 1)
# check whether this is a real du object
if isinstance(du, DataUnit):
pd=self._schedule_du(du)
if(pd!=None):
logging.debug("Initiate Transfer to PD.")
du.add_pilot_data(pd)
logging.debug("Transfer to PD finished.")
du.update_state(State.Running)
self.du_queue.task_done()
else:
self.du_queue.task_done()
self.du_queue.put(du)
except Queue.Empty:
pass
try:
logging.debug("Scheduler Thread: " + str(self.__class__) + " Pilot Job")
cu = self.cu_queue.get(True, 1)
if isinstance(cu, ComputeUnit):
pj=self._schedule_cu(cu)
if pj !=None:
cu = self.__expand_working_directory(cu, pj)
pj._submit_cu(cu)
self.cu_queue.task_done()
else:
self.cu_queue.task_done()
self.cu_queue.put(du)
except Queue.Empty:
pass
except:
exc_type, exc_value, exc_traceback = sys.exc_info()
logger.error("*** print_tb:")
traceback.print_tb(exc_traceback, limit=1, file=sys.stderr)
logger.error("*** print_exception:")
traceback.print_exception(exc_type, exc_value, exc_traceback,
limit=2, file=sys.stderr)
time.sleep(5)
logging.debug("Re-Scheduler terminated")
def __expand_working_directory(self, compute_unit, pilot_job):
""" Expand pilotdata:// url specified in the compute_unit_description
to a local url on the machine of the PJ
pilotdata://localhost/434bfc5c-23fd-11e1-a43f-00264a13ca4c
to
/tmp/pilotstore//434bfc5c-23fd-11e1-a43f-00264a13ca4c on machine running pilot_job
"""
if compute_unit.compute_unit_description.has_key("working_directory"):
working_directory=compute_unit.compute_unit_description["working_directory"]
if working_directory.find(DataUnit.DU_ID_PREFIX)!=-1:
pilot_data_url = working_directory
pj_description = pilot_job.pilot_compute_description
pj_dc_affinity = pj_description["affinity_datacenter_label"]
pj_machine_affinity = pj_description["affinity_machine_label"]
pd = [s for i in self.pilot_data_services for s in i.list_pilots()]
# find all pilot stores with the same affinity
candidate_pd = []
for i in pd:
pd_description = i.pilot_data_description
pd_dc_affinity = pd_description["affinity_datacenter_label"]
pd_machine_affinity = pd_description["affinity_machine_label"]
if pd_dc_affinity == pj_dc_affinity and pd_machine_affinity == pj_machine_affinity:
candidate_pd.append(i)
# check whether required pilot_data is part of pilot_data
target_pd = None
target_du = None
for pd in candidate_pd:
for du in pd.list_data_units():
logger.debug("DU URL:%s"%(du.url))
if du.url == pilot_data_url:
logging.debug("Found PD %s at %s"%(du.url, pd.service_url))
target_pd = pd
target_du = du
break
if target_du == None:
self.__stage_du_to_pj(pilot_data_url, pilot_job)
if target_pd!=None:
pd_url = target_pd.url_for_du(target_du)
components = urlparse.urlparse(pd_url)
compute_unit.compute_unit_description["working_directory"] = components.path
compute_unit._update_compute_unit_description(compute_unit.compute_unit_description)
logging.debug("__expand_working_directory %s: Set working directory to %s"%(pilot_data_url, compute_unit.compute_unit_description["working_directory"]))
return compute_unit
return compute_unit
def __stage_du_to_pj(self, pilotdata, pilotjob):
"""
stage required files to machine of pilot job
"""
pass
def __find_pd_at_pj_resource(self, pilotjob):
pass
class ComputeDataService(ComputeDataService):
""" B{ComputeDataService (CDS).}
The ComputeDataService is the application's interface to submit
ComputeUnits and PilotData/DataUnit to the Pilot-Manager
in the P* Model.
"""
CDS_ID_PREFIX="cds-"
def __init__(self, cds_url=None):
""" Create a ComputeDataService object.
Keyword arguments:
cds_url -- Reconnect to an existing CDS (optional).
"""
# Pilot Data
self.data_units={}
self.pilot_data_services=[]
# Pilot Job
self.compute_units={}
self.pilot_job_services=[]
if cds_url == None:
self.id=self.CDS_ID_PREFIX + str(uuid.uuid1())
application_url = CoordinationAdaptor.get_base_url(pilot.application_id)
self.url = CoordinationAdaptor.add_cds(application_url, self)
else:
self.id = self.__get_cds_id(cds_url)
self.url = cds_url
# Background Thread for scheduling
self.scheduler = Scheduler()
self.cu_queue = Queue.Queue()
self.du_queue = Queue.Queue()
self.stop=threading.Event()
self.scheduler_thread=threading.Thread(target=self._scheduler_thread)
self.scheduler_thread.daemon=True
self.scheduler_thread.start()
def __get_cds_id(self, cds_url):
start = cds_url.index(self.CDS_ID_PREFIX)
end =cds_url.index("/", start)
return cds_url[start:end]
###########################################################################
# Pilot Compute
def add_pilot_compute_service(self, pcs):
""" Add a PilotComputeService to this CDS.
@param pcs: The PilotComputeService to which this ComputeDataService will connect.
"""
self.pilot_job_services.append(pcs)
CoordinationAdaptor.update_cds(self.url, self)
def remove_pilot_compute_service(self, pcs):
""" Remove a PilotJobService from this CDS.
Note that it won't cancel the PilotComputeService, it will just no
longer be connected to this CDS.
Keyword arguments:
@param pcs: The PilotComputeService to remove from this ComputeDataService.
"""
self.pilot_job_services.remove(pcs)
CoordinationAdaptor.update_cds(self.url, self)
def submit_compute_unit(self, compute_unit_description):
""" Submit a CU to this Compute Data Service.
@param compute_unit_description: The ComputeUnitDescription from the application
@return: ComputeUnit object
"""
cu = ComputeUnit(compute_unit_description, self)
self.compute_units[cu.id]=cu
self.cu_queue.put(cu)
CoordinationAdaptor.update_cds(self.url, self)
return cu
def list_pilot_compute(self):
""" List all pilot compute of CDS """
return self.pilot_job_service
###########################################################################
# Pilot Data
def add_pilot_data_service(self, pds):
""" Add a PilotDataService
@param pds: The PilotDataService to add.
"""
self.pilot_data_services.append(pds)
CoordinationAdaptor.update_cds(self.url, self)
def remove_pilot_data_service(self, pds):
""" Remove a PilotDataService
@param pds: The PilotDataService to remove
"""
self.pilot_data_services.remove(pds)
CoordinationAdaptor.update_cds(self.url, self)
def list_pilot_data(self):
""" List all pilot data of CDS """
return self.pilot_data_services
def list_data_units(self):
""" List all DUs of CDS """
return self.data_units.items()
def get_data_unit(self, du_id):
if self.data_units.has_key(du_id):
return self.data_units[du_id]
return None
def submit_data_unit(self, data_unit_description):
""" creates a data unit object and binds it to a physical resource (a pilotdata) """
du = DataUnit(pilot_data=None,
data_unit_description=data_unit_description)
self.data_units[du.id]=du
self.du_queue.put(du)
# queue currently not persisted
CoordinationAdaptor.update_cds(self.url, self)
return du
def cancel(self):
""" Cancel the CDS.
All associated PD and PC objects are canceled.
"""
# terminate background thread
self.stop.set()
CoordinationAdaptor.delete_cds(self.url)
def wait(self):
""" Waits for CUs and DUs. Return after all DU's have been placed (i.e. in state Running)
and all CU's have been completed (i.e. in state Done) or if a fault has occurred or
the user has cancelled a CU or DU.
"""
try:
logger.debug("### START WAIT ###")
self.cu_queue.join()
logger.debug("CU queue empty")
self.du_queue.join()
logger.debug("DU queue empty")
for i in self.data_units.values():
i.wait()
logger.debug("DUs done")
for i in self.compute_units.values():
i.wait()
logger.debug("CUs done")
logger.debug("### END WAIT ###")
except:
logger.debug("Ctrl-c detected. Terminating ComputeDataService...")
self.cancel()
raise KeyboardInterrupt
def get_state(self):
"@return: State of the ComputeDataService"
return self.state
def get_id(self):
"@return: id of ComputeDataService"
return str(self.id)
def __del__(self):
""" Make sure that background thread terminates"""
self.cancel()
###########################################################################
# Internal Scheduling
def __update_scheduler_resources(self):
logger.debug("__update_scheduler_resources")
pd = [s for i in self.pilot_data_services for s in i.list_pilots()]
self.scheduler.set_pilot_data(pd)
pj = [p for i in self.pilot_job_services for p in i.list_pilots()]
logger.debug("Pilot-Jobs: " + str(pj))
self.scheduler.set_pilot_jobs(pj)
def _schedule_du(self, du):
""" Schedule DU to a suitable pilot data
Currently one level of scheduling is used:
1.) Add all resources managed by the contained PDS
2.) Select one resource
"""
logger.debug("Schedule PD")
self.__update_scheduler_resources()
selected_pilot_data = self.scheduler.schedule_pilot_data(du.data_unit_description)
return selected_pilot_data
def _schedule_cu(self, cu):
logger.debug("Schedule CU")
self.__update_scheduler_resources()
selected_pilot_job = self.scheduler.schedule_pilot_job(cu.compute_unit_description)
return selected_pilot_job
def _scheduler_thread(self):
while True and self.stop.isSet()==False:
try:
#logger.debug("Scheduler Thread: " + str(self.__class__) + " Pilot Data")
du = self.du_queue.get(True, 1)
# check whether this is a real du object
if isinstance(du, DataUnit):
pd=self._schedule_du(du)
if(pd!=None):
logger.debug("Initiate Transfer to PD.")
du.add_pilot_data(pd)
logger.debug("Transfer to PD finished.")
du._update_state(State.Running)
self.du_queue.task_done()
else:
self.du_queue.task_done()
self.du_queue.put(du)
except Queue.Empty:
pass
try:
#logger.debug("Scheduler Thread: " + str(self.__class__) + " Pilot Job")
cu = self.cu_queue.get(True, 1)
if isinstance(cu, ComputeUnit):
pj=self._schedule_cu(cu)
if pj !=None:
cu = self.__expand_working_directory(cu, pj)
pj._submit_cu(cu)
self.cu_queue.task_done()
else:
logger.debug("No resource found.")
self.cu_queue.task_done()
self.cu_queue.put(cu)
except Queue.Empty:
pass
except:
exc_type, exc_value, exc_traceback = sys.exc_info()
logger.error("*** print_tb:")
traceback.print_tb(exc_traceback, limit=1, file=sys.stderr)
logger.error("*** print_exception:")
traceback.print_exception(exc_type, exc_value, exc_traceback,
limit=2, file=sys.stderr)
if self.cu_queue.empty() and self.du_queue.empty():
time.sleep(5)
logger.debug("Re-Scheduler terminated")
def __expand_working_directory(self, compute_unit, pilot_job):
"""
DEPRECATED capability!
Expand pilotdata:// url specified in the compute_unit_description
to a local url on the machine of the PJ
pilotdata://localhost/434bfc5c-23fd-11e1-a43f-00264a13ca4c
to
/tmp/pilotstore//434bfc5c-23fd-11e1-a43f-00264a13ca4c on machine running pilot_job
"""
#=======================================================================
# if compute_unit.compute_unit_description.has_key("working_directory"):
# working_directory=compute_unit.compute_unit_description["working_directory"]
# if working_directory.find(DataUnit.DU_ID_PREFIX)!=-1:
# pilot_data_url = working_directory
# pj_description = pilot_job.pilot_compute_description
# pj_dc_affinity = pj_description["affinity_datacenter_label"]
# pj_machine_affinity = pj_description["affinity_machine_label"]
# pd = [s for i in self.pilot_data_services for s in i.list_pilots()]
#
# # find all pilot stores with the same affinity
# candidate_pd = []
# for i in pd:
# pd_description = i.pilot_data_description
# pd_dc_affinity = pd_description["affinity_datacenter_label"]
# pd_machine_affinity = pd_description["affinity_machine_label"]
# if pd_dc_affinity == pj_dc_affinity and pd_machine_affinity == pj_machine_affinity:
# candidate_pd.append(i)
#
# # check whether required pilot_data is part of pilot_data
# target_pd = None
# target_du = None
# for pd in candidate_pd:
# for du in pd.list_data_units():
# logger.debug("DU URL:%s"%(du.url))
# if du.url == pilot_data_url:
# logger.debug("Found PD %s at %s"%(du.url, pd.service_url))
# target_pd = pd
# target_du = du
# break
# if target_du == None:
# self.__stage_du_to_pj(pilot_data_url, pilot_job)
#
# if target_pd!=None:
# pd_url = target_pd.url_for_du(target_du)
# components = urlparse.urlparse(pd_url)
# compute_unit.compute_unit_description["working_directory"] = components.path
# compute_unit._update_compute_unit_description(compute_unit.compute_unit_description)
# logger.debug("__expand_working_directory %s: Set working directory to %s"%(pilot_data_url, compute_unit.compute_unit_description["working_directory"]))
# return compute_unit
#
#=======================================================================
return compute_unit
def __stage_du_to_pj(self, pilotdata, pilotjob):
"""
stage required files to machine of pilot job
"""
pass
def __find_pd_at_pj_resource(self, pilotjob):
pass
