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scheduler.py
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scheduler.py
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#!/usr/bin/python
#License#
#bitHopper by Colin Rice is licensed under a Creative Commons
# Attribution-NonCommercial-ShareAlike 3.0 Unported License.
#Based on a work at github.com.
import random
import math
import eventlet
from eventlet.green import threading, time, socket
# Global timeout for sockets in case something leaks
socket.setdefaulttimeout(900)
class Scheduler(object):
def __init__(self,bitHopper):
self.bitHopper = bitHopper
self.lock = threading.RLock()
if self.bitHopper.options.threshold:
self.difficultyThreshold = self.bitHopper.options.threshold
else:
self.difficultyThreshold = 0.435
self.valid_roles = ['mine', 'mine_nmc', 'mine_deepbit', 'mine_slush', 'mine_ixc', 'mine_i0c', 'mine_scc', 'mine_charity']
self.loadConfig()
eventlet.spawn_n(self.bitHopper_server_update)
def loadConfig(self):
try:
self.difficultyThreshold = self.bitHopper.config.getfloat('main', 'threshold')
except Exception, e:
pass
def bitHopper_server_update(self):
while True:
self.bitHopper.server_update()
eventlet.sleep(20)
def reset(self):
pass
def select_charity_server(self):
server_name = None
most_shares = self.bitHopper.difficulty.get_difficulty() * 2
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] != 'mine_charity':
continue
if info['shares'] > most_shares and info['lag'] == False:
server_name = server
most_shares = info['shares']
self.bitHopper.log_dbg('select_charity_server: ' + str(server), cat='scheduler-default')
return server_name
def select_latehop_server(self):
server_name = None
max_share_count = 1
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['api_lag'] or info['lag']:
continue
if info['role'] != 'backup_latehop':
continue
if info['shares'] > max_share_count:
server_name = server
max_share_count = info['shares']
#self.bitHopper.log_dbg('select_latehop_server: ' + str(server), cat='scheduler-default')
return server_name
def server_to_btc_shares(self,server):
difficulty = self.bitHopper.difficulty.get_difficulty()
nmc_difficulty = self.bitHopper.difficulty.get_nmc_difficulty()
ixc_difficulty = self.bitHopper.difficulty.get_ixc_difficulty()
i0c_difficulty = self.bitHopper.difficulty.get_i0c_difficulty()
scc_difficulty = self.bitHopper.difficulty.get_scc_difficulty()
info = self.bitHopper.pool.get_entry(server)
if info['role'] in ['mine', 'mine_deepbit']:
shares = info['shares']
elif info['role'] == 'mine_slush':
shares = info['shares'] * self.difficultyThreshold / 0.10
elif info['role'] == 'mine_nmc':
shares = info['shares']*difficulty / nmc_difficulty
elif info['role'] == 'mine_ixc':
shares = info['shares']*difficulty / ixc_difficulty
elif info['role'] == 'mine_i0c':
shares = info['shares']*difficulty / i0c_difficulty
elif info['role'] == 'mine_scc':
shares = info['shares']*difficulty / scc_difficulty
else:
shares = difficulty
# apply penalty
if 'penalty' in info:
shares = shares * float(info['penalty'])
return shares, info
def select_backup_server(self,):
server_name = self.select_latehop_server()
reject_rate = 1
if server_name == None:
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] not in ['backup', 'backup_latehop']:
continue
if info['lag']:
continue
shares = info['user_shares'] + 1
rr_server = float(info['rejects'])/shares
if 'penalty' in info:
rr_server += float(info['penalty'])/100
if rr_server < reject_rate:
server_name = server
reject_rate = rr_server
if server_name == None:
#self.bitHopper.log_dbg('Try another backup' + str(server), cat='scheduler-default')
min_shares = 10**10
for server in self.bitHopper.pool.get_servers():
shares,info = self.server_to_btc_shares(server)
if info['role'] not in self.valid_roles:
continue
if shares < min_shares and not info['lag']:
min_shares = shares
server_name = server
if server_name == None:
#self.bitHopper.log_dbg('Try another backup pt2' + str(server), cat='scheduler-default')
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] != 'backup':
continue
server_name = server
break
return server_name
def update_api_server(self,server):
return
class OldDefaultScheduler(Scheduler):
def select_best_server(self,):
with self.lock:
#self.bitHopper.log_dbg('select_best_server', cat='scheduler-default')
server_name = None
difficulty = self.bitHopper.difficulty.get_difficulty()
min_shares = difficulty * self.difficultyThreshold
#self.bitHopper.log_dbg('min-shares: ' + str(min_shares), cat='scheduler-default')
for server in self.bitHopper.pool.get_servers():
shares,info = self.server_to_btc_shares(server)
if info['api_lag'] or info['lag']:
continue
if info['role'] not in self.valid_roles:
continue
if shares < min_shares:
min_shares = shares
#self.bitHopper.log_dbg('Selecting pool ' + str(server) + ' with shares ' + str(info['shares']), cat='scheduler-default')
server_name = server
if server_name == None:
server_name = self.select_charity_server()
if server_name == None:
server_name = self.select_backup_server()
return server_name
def server_update(self,):
with self.lock:
current = self.bitHopper.pool.get_current()
shares,info = self.server_to_btc_shares(current)
difficulty = self.bitHopper.difficulty.get_difficulty()
if info['role'] not in self.valid_roles:
return True
if info['api_lag'] or info['lag']:
return True
if shares > (difficulty * self.difficultyThreshold):
return True
min_shares = info['shares']
for server in self.bitHopper.pool.servers:
pool = self.bitHopper.pool.get_entry(server)
if pool['shares'] < min_shares:
min_shares = pool['shares']
if min_shares < info['shares']*.90:
return True
return False
class RoundTimeScheduler(Scheduler):
def select_best_server(self,):
return
def select_backup_server(self,):
return
class RoundTimeDynamicPenaltyScheduler(Scheduler):
def select_best_server(self,):
return
def select_backup_server(self,):
return
class DefaultScheduler(Scheduler):
def __init__(self, bitHopper):
Scheduler.__init__(self, bitHopper)
self.bitHopper = bitHopper
self.sliceinfo = {}
self.slicesize = 30
self.lastcalled = time.time()
self.loadConfig()
self.reset()
def loadConfig(self,):
Scheduler.loadConfig(self)
try:
ss = self.bh.config.getint('defaultscheduler', 'slicesize')
self.slicesize = ss
except Exception, e:
pass
def reset(self,):
with self.lock:
for server in self.bitHopper.pool.get_servers():
self.sliceinfo[server] = -1
def select_best_server(self,):
with self.lock:
#self.bitHopper.log_dbg('select_best_server', cat='scheduler-default')
difficulty = self.bitHopper.difficulty.get_difficulty()
min_shares = difficulty * self.difficultyThreshold
valid_servers = []
for server in self.bitHopper.pool.get_servers():
shares,info = self.server_to_btc_shares(server)
if info['role'] not in self.valid_roles:
continue
if info['lag'] or info['api_lag']:
continue
if shares< min_shares:
valid_servers.append(server)
for server in valid_servers:
if server not in self.sliceinfo:
self.sliceinfo[server] = 0
if self.sliceinfo[server] == -1:
self.sliceinfo[server] = 0
for server in self.sliceinfo:
if server not in valid_servers:
self.sliceinfo[server] = -1
charity_server = self.select_charity_server()
if valid_servers == [] and charity_server != None:
return charity_server
if valid_servers == []:
return self.select_backup_server()
min_slice = self.sliceinfo[valid_servers[0]]
server = valid_servers[0]
for pool in valid_servers:
info = self.bitHopper.pool.servers[pool]
if info['api_lag'] or info['lag']:
continue
if self.sliceinfo[pool] <= min_slice:
min_slice = self.sliceinfo[pool]
server = pool
return server
def server_update(self,):
with self.lock:
#self.bitHopper.log_msg(str(self.sliceinfo))
diff_time = time.time()-self.lastcalled
self.lastcalled = time.time()
current = self.sliceinfo[self.bitHopper.pool.get_current()]
if current == -1:
return True
self.sliceinfo[self.bitHopper.pool.get_current()] += diff_time
if self.bitHopper.pool.servers[self.bitHopper.pool.get_current()]['role'] not in self.valid_roles:
return True
valid = []
for k in self.sliceinfo:
if self.sliceinfo[k] != -1:
valid.append(k)
if len(valid) <=1:
return True
for server in valid:
if current - self.sliceinfo[server] > 30:
return True
difficulty = self.bitHopper.difficulty.get_difficulty()
min_shares = difficulty * self.difficultyThreshold
shares = self.server_to_btc_shares(self.bitHopper.pool.get_current())[0]
if shares > min_shares:
return True
return False
class AltSliceScheduler(Scheduler):
def __init__(self,bitHopper):
Scheduler.__init__(self,bitHopper)
self.bitHopper = bitHopper
self.sliceinfo = {}
self.name = 'scheduler-altslice'
self.bitHopper.log_msg('Initializing AltSliceScheduler...', cat=self.name)
self.bitHopper.log_msg(' - Min Slice Size: ' + str(self.bitHopper.options.altminslicesize), cat=self.name)
self.bitHopper.log_msg(' - Slice Size: ' + str(self.bitHopper.options.altslicesize), cat=self.name)
self.lastcalled = time.time()
self.target_duration = 0
self.sbs_count = 0
self.initDone = False
self.reset()
def reset(self,):
with self.lock:
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
info['slice'] = -1
info['slicedShares'] = 0
if 'init' not in info:
info['init'] = False
if (self.bitHopper.options.altsliceroundtimebias == True):
difficulty = self.bitHopper.difficulty.get_difficulty()
one_ghash = 1000000 * 1000
target_ghash = one_ghash * int(self.bitHopper.options.altsliceroundtimetarget) * self.difficultyThreshold
self.bitHopper.log_msg(' - Target Round Time Bias GHash/s: ' + str(float(target_ghash/one_ghash)), cat=self.name)
self.target_duration = difficulty * (2**32) / target_ghash
self.bitHopper.log_msg(" - Target duration: " + str(int(self.target_duration)) + "(s) or " + str(int(self.target_duration/60)) + " minutes", cat=self.name)
def select_best_server(self,):
with self.lock:
self.bitHopper.log_trace('select_best_server', cat=self.name)
server_name = None
difficulty = self.bitHopper.difficulty.get_difficulty()
min_shares = difficulty * self.difficultyThreshold
current_server = self.bitHopper.pool.get_current()
reslice = True
fullinit = True
allSlicesDone = True
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['slice'] > 0:
reslice = False
allSlicesDone = False
if 'init' in info and info['init'] == False and info['role'] in self.valid_roles:
self.bitHopper.log_trace(server + " not yet initialized", cat=self.name)
fullinit = False
if 'init' not in info:
fullinit = False
shares = info['shares']
if 'penalty' in info:
shares = shares * float(info['penalty'])
# favor slush over other pools if low enough
if info['role'] in ['mine_slush'] and shares * 4 < min_shares:
fullinit = True
if self.bitHopper.pool.get_current() == None or allSlicesDone == True:
reslice = True
elif self.bitHopper.pool.get_entry(current_server)['lag'] == True:
reslice = True
if (fullinit and self.initDone == False) or self.sbs_count > 64: # catch long init
self.initDone = True
reslice = True
#self.bitHopper.log_dbg('allSlicesDone: ' + str(allSlicesDone) + ' fullinit: ' + str(fullinit) + ' initDone: ' + str(self.initDone), cat='reslice')
if (reslice == True):
self.bitHopper.log_msg('Re-Slicing...', cat=self.name)
totalshares = 1
totalweight = 0
server_shares = {}
for server in self.bitHopper.pool.get_servers():
shares,info = self.server_to_btc_shares(server)
shares += 1
if info['role'] not in self.valid_roles:
continue
if info['api_lag'] or info['lag']:
continue
if shares < min_shares and shares >= 0:
totalshares = totalshares + shares
info['slicedShares'] = shares
server_shares[server] = shares
else:
self.bitHopper.log_trace(server + ' skipped ' + str(shares))
continue
# find total weight
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] not in self.valid_roles:
continue
if info['api_lag'] or info['lag']:
continue
if server not in server_shares: continue
if server_shares[server] < min_shares and server_shares[server] > 0:
totalweight += 1/(float(server_shares[server])/totalshares)
# round time biasing
tb_delta = {}
tb_log_delta = {}
pos_weight = {}
neg_weight = {}
adj_slice = {}
# TODO punish duration estimates weighed by temporal duration
if (self.bitHopper.options.altsliceroundtimebias == True):
# delta from target
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] not in self.valid_roles:
continue
if info['duration'] <= 0:
continue
if server not in server_shares:
continue
tb_delta[server] = self.target_duration - info['duration'] + 1
tb_log_delta[server] = math.log(abs(tb_delta[server]))
self.bitHopper.log_trace(' ' + server + " delta: " + str(tb_delta[server]) + " log_delta: " + str(tb_log_delta[server]), cat=self.name)
# pos/neg_total
pos_total = 0
neg_total = 0
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] not in self.valid_roles:
continue
if info['duration'] <= 0:
continue
if server not in server_shares:
continue
if tb_delta[server] >= 0: pos_total += tb_log_delta[server]
if tb_delta[server] < 0: neg_total += tb_log_delta[server]
self.bitHopper.log_trace("pos_total: " + str(pos_total) + " / neg_total: " + str(neg_total), cat=self.name)
# preslice
self.bitHopper.options.altslicesize
for server in self.bitHopper.pool.get_servers():
if server in tb_delta:
info = self.bitHopper.pool.get_entry(server)
if info['isDurationEstimated'] == True and info['duration_temporal'] < 300:
tb_delta[server] = 0
else:
if tb_delta[server] >= 0:
pos_weight[server] = tb_log_delta[server] / pos_total
self.bitHopper.log_trace(server + " pos_weight: " + str(pos_weight[server]), cat=self.name)
elif tb_delta[server] < 0:
neg_weight[server] = tb_log_delta[server] / neg_total
self.bitHopper.log_trace(server + " neg_weight: " + str(neg_weight[server]), cat=self.name)
# allocate slices
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] not in self.valid_roles:
continue
if server not in server_shares:
continue
shares = server_shares[server] + 1
if shares <= 0:
continue
if shares < min_shares and shares > 0:
weight = 0
self.bitHopper.log_trace('tb_delta: ' + str(len(tb_delta)) + ' / server_shares: ' + str(len(server_shares)), cat=self.name)
if (self.bitHopper.options.altsliceroundtimebias == True):
if len(tb_delta) == 1 and len(server_shares) == 1:
# only 1 server to slice (zzz)
if info['duration'] > 0:
slice = self.bitHopper.options.altslicesize
else:
slice = 0
else:
weight = 1/(float(shares)/totalshares)
slice = weight * self.bitHopper.options.altslicesize / totalweight
if self.bitHopper.options.altslicejitter != 0:
jitter = random.randint(0-self.bitHopper.options.altslicejitter, self.bitHopper.options.altslicejitter)
slice += jitter
else:
if shares == totalshares:
# only 1 server to slice (zzz)
slice = self.bitHopper.options.altslicesize
else:
weight = 1/(float(shares)/totalshares)
slice = weight * self.bitHopper.options.altslicesize / totalweight
if self.bitHopper.options.altslicejitter != 0:
jitter = random.randint(0-self.bitHopper.options.altslicejitter, self.bitHopper.options.altslicejitter)
slice += jitter
info['slice'] = slice
if self.bitHopper.options.debug:
self.bitHopper.log_dbg(server + " sliced to " + "{0:.2f}".format(info['slice']) + '/' + "{0:d}".format(int(self.bitHopper.options.altslicesize)) + '/' + str(shares) + '/' + "{0:.3f}".format(weight) + '/' + "{0:.3f}".format(totalweight) , cat=self.name)
else:
self.bitHopper.log_msg(server + " sliced to " + "{0:.2f}".format(info['slice']), cat=self.name)
# adjust based on round time bias
if self.bitHopper.options.altsliceroundtimebias == True:
self.bitHopper.log_dbg('Check if apply Round Time Bias: tb_log_delta: ' + str(len(tb_log_delta)) + ' == servers: ' + str(len(server_shares)), cat=self.name)
if self.bitHopper.options.altsliceroundtimebias == True and len(tb_log_delta) >= 1:
self.bitHopper.log_msg('>>> Apply Round Time Bias === ', cat=self.name)
ns_total = 0
adj_factor = self.bitHopper.options.altsliceroundtimemagic
self.bitHopper.log_trace(' server: ' + server)
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if server not in tb_log_delta: continue # no servers to adjust
self.bitHopper.log_trace(' server(tld): ' + server)
if server in pos_weight:
adj_slice[server] = info['slice'] + adj_factor * pos_weight[server]
self.bitHopper.log_trace(' server (pos): ' + str(adj_slice[server]))
ns_total += adj_slice[server]
elif server in neg_weight:
adj_slice[server] = info['slice'] - adj_factor * neg_weight[server]
self.bitHopper.log_trace(' server (neg): ' + str(adj_slice[server]))
ns_total += adj_slice[server]
# re-slice the slices
ad_totalslice = 0
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] not in self.valid_roles:
continue
if info['shares'] < 0: continue
if server not in server_shares: continue
shares = server_shares[server] + 1
if shares < min_shares and shares > 0:
if server in adj_slice:
ad_totalslice += adj_slice[server]
else:
ad_totalslice += info['slice']
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] not in self.valid_roles:
continue
if info['shares'] < 0: continue
if server not in server_shares: continue
if server not in tb_log_delta: continue # no servers to adjust
shares = server_shares[server] + 1
if shares < min_shares and shares > 0:
if server in adj_slice:
previous = info['slice']
info['slice'] = self.bitHopper.options.altslicesize * (adj_slice[server] / ad_totalslice)
if self.bitHopper.options.debug:
self.bitHopper.log_dbg(server + " _adjusted_ slice to " + "{0:.2f}".format(info['slice']) + '/' + "{0:d}".format(int(self.bitHopper.options.altslicesize)) + '/' + str(shares) + '/' + "{0:.3f}".format(adj_slice[server]) + '/' + "{0:.3f}".format(ad_totalslice) , cat=self.name)
else:
self.bitHopper.log_msg(' > ' + server + " _adjusted_ slice to " + "{0:.2f}".format(info['slice']) + " from {0:.2f}".format(previous), cat=self.name)
else:
info['slice'] = self.bitHopper.options.altslicesize * (info['slice'] / ad_totalslice)
if self.bitHopper.options.debug:
self.bitHopper.log_dbg(server + " sliced to " + "{0:.2f}".format(info['slice']) + '/' + "{0:d}".format(int(self.bitHopper.options.altslicesize)) + '/' + str(shares) + '/na/' + "{0:.3f}".format(ad_totalslice) , cat=self.name)
else:
self.bitHopper.log_msg(server + " sliced to " + "{0:.2f}".format(info['slice']), cat=self.name)
# min share adjustment
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
if info['role'] not in self.valid_roles:
continue
if info['shares'] < 0: continue
if server not in server_shares: continue
if info['slice'] < self.bitHopper.options.altminslicesize:
info['slice'] = self.bitHopper.options.altminslicesize
if self.bitHopper.options.debug:
self.bitHopper.log_dbg(server + " (min)sliced to " + "{0:.2f}".format(info['slice']) + '/' + "{0:d}".format(int(self.bitHopper.options.altslicesize)) + '/' + str(shares) + '/' + "{0:d}".format(info['duration']), cat=self.name)
else:
self.bitHopper.log_msg(server + " (min)sliced to " + "{0:.2f}".format(info['slice']), cat=self.name)
# Pick server with largest slice first
max_slice = -1
for server in self.bitHopper.pool.get_servers():
info = self.bitHopper.pool.get_entry(server)
shares = info['shares']
if 'penalty' in info:
shares = shares * float(info['penalty'])
# favor slush over other pools if low enough
if info['role'] in ['mine_slush'] and shares * 4 < min_shares:
max_slice = info['slice']
server_name = server
continue
if info['role'] in self.valid_roles and info['slice'] > 0 and not info['lag']:
if max_slice == -1:
max_slice = info['slice']
server_name = server
if info['slice'] > max_slice:
max_slice = info['slice']
server_name = server
if server_name == None: server_name = self.select_charity_server()
#self.bitHopper.log_dbg('server_name: ' + str(server_name), cat=self.name)
if server_name == None:
self.bitHopper.log_msg('No servers to slice, picking a backup...')
server_name = self.select_backup_server()
return server_name
def server_update(self,):
with self.lock:
#self.bitHopper.log_dbg('server_update', cat='server_update')
diff_time = time.time()-self.lastcalled
self.lastcalled = time.time()
current = self.bitHopper.pool.get_current()
shares,info = self.server_to_btc_shares(current)
info['slice'] = info['slice'] - diff_time
#self.bitHopper.log_dbg(current_server + ' slice ' + str(info['slice']), cat='server_update' )
if self.initDone == False:
self.bitHopper.select_best_server()
return True
if info['slice'] <= 0: return True
# shares are now less than shares at time of slicing (new block found?)
if info['slicedShares'] > info['shares']:
self.bitHopper.log_dbg("slicedShares > shares")
return True
# double check role
if info['role'] not in self.valid_roles: return True
# check to see if threshold exceeded
difficulty = self.bitHopper.difficulty.get_difficulty()
min_shares = difficulty * self.difficultyThreshold
if shares > min_shares:
self.bitHopper.log_dbg("shares > min_shares")
info['slice'] = -1 # force switch
return True
return False
def update_api_server(self,server):
with self.lock:
info = self.bitHopper.pool.get_entry(server)
if info['role'] in ['info', 'disable'] and info['slice'] > 0:
info['slice'] = -1
return