##############################
# rough implementation for a singleton class
-def Singleton (klass,*args,**kwds):
- if not hasattr(klass,'_instance'):
- klass._instance=klass(*args,**kwds)
+def Singleton (klass, *args, **kwds):
+ if not hasattr(klass, '_instance'):
+ klass._instance=klass(*args, **kwds)
return klass._instance
def start():
# check we're using a compliant GetSlivers
if 'reservation_policy' not in data:
- logger.log_missing_data("reservation.GetSlivers",'reservation_policy')
+ logger.log_missing_data("reservation.GetSlivers", 'reservation_policy')
return
self.reservation_policy=data['reservation_policy']
if 'leases' not in data:
- logger.log_missing_data("reservation.GetSlivers",'leases')
+ logger.log_missing_data("reservation.GetSlivers", 'leases')
return
# store data locally
# regular nodes are not affected
if self.reservation_policy == 'none':
return
- elif self.reservation_policy not in ['lease_or_idle','lease_or_shared']:
+ elif self.reservation_policy not in ['lease_or_idle', 'lease_or_shared']:
logger.log("reservation: ignoring -- unexpected value for reservation_policy %r"%self.reservation_policy)
return
- # at this point we have reservation_policy in ['lease_or_idle','lease_or_shared']
+ # at this point we have reservation_policy in ['lease_or_idle', 'lease_or_shared']
# we make no difference for now
logger.log("reservation.GetSlivers: reservable node -- policy=%s"%self.reservation_policy)
self.sync_timers_from_leases()
def sync_timers_from_leases (self):
self.clear_timers()
for lease in self.data['leases']:
- self.ensure_timer_from_until(lease['t_from'],lease['t_until'])
+ self.ensure_timer_from_until(lease['t_from'], lease['t_until'])
# assuming t1<t2
- def ensure_timer_from_until (self, t1,t2):
+ def ensure_timer_from_until (self, t1, t2):
now=int(time.time())
# both times are in the past: forget about it
if t2 < now : return
# we're in the middle of the lease: make sure to arm a callback in the near future for checking
# this mostly is for starting the slice if nodemanager gets started in the middle of a lease
if t1 < now :
- self.ensure_timer (now,now+10)
+ self.ensure_timer (now, now+10)
# both are in the future : arm them
else :
- self.ensure_timer (now,self.round_time(t1))
- self.ensure_timer (now,self.round_time(t2))
+ self.ensure_timer (now, self.round_time(t1))
+ self.ensure_timer (now, self.round_time(t2))
def ensure_timer(self, now, timestamp):
if timestamp in self.timers: return
reservation.time_printable(now),
reservation.time_printable(timestamp)))
self.granularity_callback (now)
- timer=threading.Timer(timestamp-now,this_closure)
+ timer=threading.Timer(timestamp-now, this_closure)
self.timers[timestamp]=timer
timer.start()
@staticmethod
def time_printable (timestamp):
- return time.strftime ("%Y-%m-%d %H:%M UTC",time.gmtime(timestamp))
+ return time.strftime ("%Y-%m-%d %H:%M UTC", time.gmtime(timestamp))
@staticmethod
def lease_printable (lease):
leases=self.data['leases']
###
if reservation.debug:
- logger.log('reservation.granularity_callback now=%f round_now=%d arg=%d...'%(now,round_now,time_arg))
+ logger.log('reservation.granularity_callback now=%f round_now=%d arg=%d...'%(now, round_now, time_arg))
if leases and reservation.debug:
logger.log('reservation: Listing leases beg')
for lease in leases:
ending_lease=None
for lease in leases:
if lease['t_until']==round_now:
- logger.log('reservation: end of lease for slice %s - (lease=%s)'%(lease['name'],reservation.lease_printable(lease)))
+ logger.log('reservation: end of lease for slice %s - (lease=%s)'%(lease['name'], reservation.lease_printable(lease)))
ending_lease=lease
starting_lease=None
for lease in leases:
if lease['t_from']==round_now:
- logger.log('reservation: start of lease for slice %s - (lease=%s)'%(lease['name'],reservation.lease_printable(lease)))
+ logger.log('reservation: start of lease for slice %s - (lease=%s)'%(lease['name'], reservation.lease_printable(lease)))
starting_lease=lease
########## nothing is starting nor ending
logger.log("reservation.granularity_callback: suspending all slices")
self.suspend_all_slices()
- def debug_box(self,message,slicename=None):
+ def debug_box(self, message, slicename=None):
if reservation.debug:
logger.log ('reservation: '+message)
logger.log_call( ['/usr/sbin/vserver-stat', ] )
if slicename:
- logger.log_call ( ['/usr/sbin/vserver',slicename,'status', ])
+ logger.log_call ( ['/usr/sbin/vserver', slicename, 'status', ])
def is_running (self, slicename):
try:
# quick an d dirty - this does not obey the account/sliver_vs/controller hierarchy
def suspend_slice(self, slicename):
logger.log('reservation: Suspending slice %s'%(slicename))
- self.debug_box('before suspending',slicename)
+ self.debug_box('before suspending', slicename)
worker=account.get(slicename)
try:
logger.log("reservation: Located worker object %r"%worker)
# when the underlying worker is not entirely initialized yet
pass
except:
- logger.log_exc("reservation.suspend_slice: Could not stop slice through its worker",name=slicename)
+ logger.log_exc("reservation.suspend_slice: Could not stop slice through its worker", name=slicename)
# we hope the status line won't return anything
- self.debug_box('after suspending',slicename)
+ self.debug_box('after suspending', slicename)
# exclude can be a slicename or a list
# this probably should run in parallel
def suspend_all_slices (self, exclude=[]):
- if isinstance(exclude,str): exclude=[exclude,]
+ if isinstance(exclude, str): exclude=[exclude,]
for sliver in self.data['slivers']:
# skip excluded
if sliver['name'] in exclude: continue
def restart_slice(self, slicename):
logger.log('reservation: Restarting slice %s'%(slicename))
- self.debug_box('before restarting',slicename)
+ self.debug_box('before restarting', slicename)
worker=account.get(slicename)
try:
# dig in self.data to retrieve corresponding rec
logger.log("reservation: Located record at the db %r"%record)
worker.start(record)
except:
- logger.log_exc("reservation.restart_slice: Could not start slice through its worker",name=slicename)
+ logger.log_exc("reservation.restart_slice: Could not start slice through its worker", name=slicename)
# we hope the status line won't return anything
- self.debug_box('after restarting',slicename)
+ self.debug_box('after restarting', slicename)
git://git.onelab.eu / nodemanager.git / blobdiff