Blame view

Utils.py 21 KB
2382daaac   Thanasis Naskos   first commit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
  #import paramiko
  import re, random
  #import boto
  #import boto.ec2
  #from euca2ools import Euca2ool, InstanceValidationError, ConnectionFailed, FileValidationError
  from pysqlite2 import dbapi2 as sqlite
  #import sys, os
  import os, logging, errno
  from ConfigParser import ConfigParser
  #from scipy.interpolate import InterpolatedUnivariateSpline
  from scipy.interpolate import UnivariateSpline
  from collections import OrderedDict
  from Instance import Instance
  import numpy as np
  
  class Utils(object):
      '''
      This class holds utility functions. 
      '''
      
      def __init__(self,properties_file):
          self.read_properties(properties_file)
  	self.mac_ip_mapping = {
6a9412d84   Thanasis Naskos   fixing ip less th...
24
25
26
27
28
29
30
31
32
33
  		"vm40.delab.csd.auth.gr":("e4:dd:4a:c2:36:33","192.168.1.40"),
  		"vm41.delab.csd.auth.gr":("73:3d:a0:aa:4e:bf","192.168.1.41"),
  		"vm42.delab.csd.auth.gr":("a2:da:bb:32:01:02","192.168.1.42"),
  		"vm43.delab.csd.auth.gr":("b2:50:a9:ac:12:19","192.168.1.43"),
  		"vm44.delab.csd.auth.gr":("31:65:3b:77:11:78","192.168.1.44"),
  		"vm45.delab.csd.auth.gr":("d2:a5:e5:33:cf:09","192.168.1.45"),
  		"vm46.delab.csd.auth.gr":("29:72:ff:69:cc:c7","192.168.1.46"),
  		"vm47.delab.csd.auth.gr":("5e:72:9d:12:25:3a","192.168.1.47"),
  		"vm48.delab.csd.auth.gr":("45:fa:7b:a3:c2:5b","192.168.1.48"),
  		"vm49.delab.csd.auth.gr":("99:0d:28:13:69:97","192.168.1.49"),
2382daaac   Thanasis Naskos   first commit
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
  		"vm50.delab.csd.auth.gr":("a6:89:d4:1b:6d:21","192.168.1.50"),
  		"vm51.delab.csd.auth.gr":("36:86:86:3c:01:6d","192.168.1.51"),
  		"vm52.delab.csd.auth.gr":("44:66:11:45:bf:aa","192.168.1.52"),
  		"vm53.delab.csd.auth.gr":("f0:37:d7:e2:1f:d1","192.168.1.53"),
  		"vm54.delab.csd.auth.gr":("00:b8:a2:a0:af:70","192.168.1.54"),
  		"vm55.delab.csd.auth.gr":("9c:66:ab:89:32:cc","192.168.1.55"),
  		"vm56.delab.csd.auth.gr":("98:43:bd:58:34:b1","192.168.1.56"),
  		"vm57.delab.csd.auth.gr":("1c:45:09:a7:f4:e9","192.168.1.57"),
  		"vm58.delab.csd.auth.gr":("d6:40:d1:6a:e8:b8","192.168.1.58"),
  		"vm59.delab.csd.auth.gr":("e8:cb:ef:24:06:93","192.168.1.59"),
  		"vm60.delab.csd.auth.gr":("72:46:86:76:ed:bf","192.168.1.60"),
  		"vm61.delab.csd.auth.gr":("e4:44:2d:a2:c4:0f","192.168.1.61"),
  		"vm62.delab.csd.auth.gr":("34:5e:9e:ba:a7:cf","192.168.1.62"),
  		"vm63.delab.csd.auth.gr":("00:e5:78:bf:e5:b8","192.168.1.63"),
  		"vm64.delab.csd.auth.gr":("1e:72:d2:c8:f3:a7","192.168.1.64"),
  		"vm65.delab.csd.auth.gr":("4a:f0:da:97:65:ef","192.168.1.65"),
  		"vm66.delab.csd.auth.gr":("0c:a0:a8:54:f4:5a","192.168.1.66"),
  		"vm67.delab.csd.auth.gr":("f4:61:40:9a:11:8c","192.168.1.67"),
  		"vm68.delab.csd.auth.gr":("e2:c0:b4:8d:96:f8","192.168.1.68"),
  		"vm69.delab.csd.auth.gr":("de:f1:08:d6:62:62","192.168.1.69"),
  		"vm70.delab.csd.auth.gr":("86:50:cf:f8:10:ff","192.168.1.70"),
  		"vm71.delab.csd.auth.gr":("e2:15:66:9a:6a:65","192.168.1.71"),
  		"vm72.delab.csd.auth.gr":("18:56:1c:f7:5f:05","192.168.1.72"),
  		"vm73.delab.csd.auth.gr":("a6:53:94:09:7c:84","192.168.1.73"),
  		"vm74.delab.csd.auth.gr":("f6:d3:3d:53:ca:04","192.168.1.74"),
  		"vm75.delab.csd.auth.gr":("e8:c2:49:ac:52:4c","192.168.1.75"),
  		"vm76.delab.csd.auth.gr":("38:ac:45:43:20:22","192.168.1.76"),
  		"vm77.delab.csd.auth.gr":("86:48:d8:7a:16:c4","192.168.1.77"),
  		"vm78.delab.csd.auth.gr":("1a:00:1b:91:6c:bf","192.168.1.78"),
  		"vm79.delab.csd.auth.gr":("20:cf:31:a7:bf:c5","192.168.1.79"),
6a9412d84   Thanasis Naskos   fixing ip less th...
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
  		"vm80.delab.csd.auth.gr":("36:9b:a9:49:76:05","192.168.1.80"),
  		"vm81.delab.csd.auth.gr":("C4:C2:A5:02:AD:E3","192.168.1.81"),
  		"vm82.delab.csd.auth.gr":("34:BF:73:B3:9D:EF","192.168.1.82"),
  		"vm83.delab.csd.auth.gr":("18:69:D3:06:C5:78","192.168.1.83"),
  		"vm84.delab.csd.auth.gr":("9A:4E:1E:EA:29:68","192.168.1.84"),
  		"vm85.delab.csd.auth.gr":("F6:EE:BC:3B:AB:AF","192.168.1.85"),
  		"vm86.delab.csd.auth.gr":("FE:1E:32:02:0F:56","192.168.1.86"),
  		"vm87.delab.csd.auth.gr":("6E:98:16:C7:8A:D3","192.168.1.87"),
  		"vm88.delab.csd.auth.gr":("3E:52:A7:B1:9B:7A","192.168.1.88"),
  		"vm89.delab.csd.auth.gr":("4C:04:95:BA:EC:82","192.168.1.89"),
  		"vm90.delab.csd.auth.gr":("E4:46:51:70:E1:BA","192.168.1.90"),
  		"vm91.delab.csd.auth.gr":("A2:66:B2:37:E0:6F","192.168.1.91"),
  		"vm92.delab.csd.auth.gr":("02:A9:83:64:4D:50","192.168.1.92"),
  		"vm93.delab.csd.auth.gr":("78:18:73:B0:44:71","192.168.1.93"),
  		"vm94.delab.csd.auth.gr":("08:D2:28:67:AD:8D","192.168.1.94"),
  		"vm95.delab.csd.auth.gr":("C0:44:25:C0:E5:C6","192.168.1.95"),
  		"vm96.delab.csd.auth.gr":("D2:89:2E:89:44:96","192.168.1.96"),
  		"vm97.delab.csd.auth.gr":("AA:7E:4A:3A:32:68","192.168.1.97"),
  		"vm98.delab.csd.auth.gr":("3E:B8:A0:96:BF:30","192.168.1.98"),
  		"vm99.delab.csd.auth.gr":("20:DA:56:86:29:13","192.168.1.99")
2382daaac   Thanasis Naskos   first commit
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
  	}
  	self.free_ips = self.mac_ip_mapping.keys()
  
      def getFree_dns_names(self, count, occupied=[]):
  	names = []
  	for ip in occupied:
  		if ip in self.free_ips:
  			self.free_ips.remove(ip)
  	if (count <= len(self.free_ips)):
  		for i in range(0,count):
  			names.append(self.free_ips.pop())
  	else:
  		print "no available dns_names"
  	return names
  
      def return_instance_from_tuple(self, tuple):
  	instance = Instance(tuple[0], tuple[1], tuple[2], tuple[3], tuple[4], tuple[5], tuple[6], tuple[7], tuple[8], tuple[9], tuple[10],tuple[11]);
          return instance
          
          
      def query_instance_db(self, pattern):
          """ A helpful search for the sqlite db - returns instances"""
          search_field = None
          search_field1 = None
          
          
          if re.match('i-', pattern):
          ## looking by instance id
              search_field = "id"
          else:
              if re.match('emi-', pattern):
              ## looking by image id
                  search_field = "image_id"
              else:
                  if pattern.find(".") != -1:
                      ## looking by ip
                      search_field = "public_dns_name"
                      search_field1 = "private_dns_name"
                  else:
                      ## looking by state
                      search_field = "state"
  
          instances = []
          ## read from the local database
          con = sqlite.connect(self.db_file)
          cur = con.cursor()
          instancesfromDB = []
          if search_field1 :
              try:
                  instancesfromDB = cur.execute('select * from instances where ' + search_field +"=\"" +
                                                pattern + "\" OR " + search_field1 + "=\"" + pattern + "\""
                              ).fetchall()
              except sqlite.DatabaseError:
                  con.rollback()
          else:
              try:
                  instancesfromDB = cur.execute('select * from instances where ' + search_field +"=\"" +
                                                pattern + "\"").fetchall()
              except sqlite.DatabaseError:
                  con.rollback()              
              
          cur.close()
          con.close()
          
          for instancefromDB in instancesfromDB:
              instances.append(self.return_instance_from_tuple(instancefromDB))
                  
          return instances
  
      def query_instance_db_using_id(self, pattern):
  	print "pattern: "+ str(pattern)
          """ A helpful search for the sqlite db - returns instances"""
  	search_field = "ip_address"
          instances = []
          ## read from the local database
          con = sqlite.connect(self.db_file)
          cur = con.cursor()
          instancesfromDB = []
          try:
              instancesfromDB = cur.execute('select * from instances where ' + search_field +"=\"" +
                                            pattern + "\"").fetchall()
          except sqlite.DatabaseError:
              con.rollback()              
              
          cur.close()
          con.close()
          
          for instancefromDB in instancesfromDB:
              instances.append(self.return_instance_from_tuple(instancefromDB))
                  
          return instances
      
      def refresh_instance_db(self, instances):
          ## Update instance DB with provided instances (removes all previous entries!)
          con = sqlite.connect(self.db_file)
          cur = con.cursor()
          try:
              cur.execute('delete from instances'
                      )
              con.commit()
          except sqlite.DatabaseError:
              print "ERROR in truncate"
          for instance in instances:
              try:
                  cur.execute(""" insert into instances(id, image_id, dns_name, ip_address, mac_address, vpn,
  						   state, instance_type, launch_time, placement, username, password)
                                                      values  (?,?,?,?,?,?,?,?,?,?,?,?)""",
                              (instance.id, instance.image_id, instance.dns_name, instance.ip_address, instance.mac_address, instance.vpn, instance.state, instance.instance_type, instance.launch_time, instance.placement,instance.username,instance.password)
                              )
                  con.commit()
              except sqlite.DatabaseError, e:
                  print e.message
                  print "ERROR in insert"
  
          cur.close()
          con.close()
          
      def add_to_instance_db(self, instances):
          ## Update instance DB with provided instances (keeps previous entries!)
          con = sqlite.connect(self.db_file)
          cur = con.cursor()
              
          for instance in instances:
              try:
                  cur.execute(""" insert into instances(id, image_id, public_dns_name, private_dns_name,private_ip_address_2,state,
                                                     key_name, ami_launch_index, product_codes,instance_type,
                                                     launch_time, placement, kernel, ramdisk ) 
                                                      values  (?,?,?,?,?,?,?,?,?,?,?,?,?,?)""",
                              (instance.id, instance.image_id,instance.public_dns_name,instance.private_dns_name,instance.private_ip_address_2, instance.state,
                                                              instance.key_name,instance.ami_launch_index,instance.product_codes,instance.instance_type,
                                                              instance.launch_time,instance.placement,instance.kernel,instance.ramdisk)
                              )
                  con.commit()
              except sqlite.DatabaseError, e:
                  print e.message
                  print "ERROR in insert"
  
          cur.close()
          con.close()
          
      ########################################################
      ##     Cluster DB functions
      ########################################################
      
      def delete_cluster_from_db(self, clusterid = "default"):
          con = sqlite.connect(self.db_file)
          cur = con.cursor()
          try:
              cur.execute('delete from clusters where cluster_id=\"'+clusterid+"\"")
              con.commit()
          except sqlite.DatabaseError:
              print "ERROR in truncate"
          cur.close()
          con.close()
          
      def refresh_cluster_db(self, cluster=None):
          ## Update cluster DB with provided cluster (removes all previous entries!)
          con = sqlite.connect(self.db_file)
          cur = con.cursor()
          try:
              cur.execute('delete from clusters'
                      )
              con.commit()
          except sqlite.DatabaseError:
              print "ERROR in truncate"
              
          for (clusterkey,clustervalue) in cluster.items():
              try:
                  cur.execute(""" insert into clusters(cluster_id, hostname, ip_address) 
                                                      values  (?,?,?)""",
                              (clusterkey, clustervalue.id, clustervalue.ip_address)
                              )
                  con.commit()
  		clusters = cur.execute('select * from clusters',).fetchall()
  		con.commit()
  	        print "clusters refresh" + str(clusters);
              except sqlite.DatabaseError, e:
                  print e.message
                  print "ERROR in insert"
  
          cur.close()
          con.close()
      
      def get_cluster_from_db(self, cluster_id=None):
          if not cluster_id:
              print "Got to provide cluster id!!!"
          else:
              con = sqlite.connect(self.db_file)
              cur = con.cursor()
              try:
                  clusterfromDB = cur.execute('select * from clusters where cluster_id = \"'+cluster_id+"\""
                          ).fetchall()
                  con.commit()
              except sqlite.DatabaseError:
                  print "ERROR in select"
                  return None
              
              if len(clusterfromDB) < 1:
                  print "Have not found the requested cluster - exiting."
              else:
                  ## build a cluster object
                  cluster = {}
                  for clusternode in clusterfromDB:
                      print (clusternode[2])
                      ## query db to get the corresponding instance
                      instance = self.query_instance_db_using_id(clusternode[2])
                      ## Populate cluster if instance in db
                      if instance:
                          cluster[clusternode[1]] = instance[0]
  #                        print cluster
  #                        print "Instance:", instance
  #                        sys.stdout.flush()
                  return cluster
          return None
  
      def get_cluster(self, cluster_id=None):
          if not cluster_id:
              print "Got to provide cluster id!!!"
          else:
              con = sqlite.connect(self.db_file)
              cur = con.cursor()
              try:
                  clusterfromDB = cur.execute('select * from clusters where cluster_id = \"'+cluster_id+"\""
                          ).fetchall()
                  con.commit()
              except sqlite.DatabaseError:
                  print "ERROR in select"
                  return None
              
              if len(clusterfromDB) < 1:
                  print "Have not found the requested cluster - exiting."
              else:
                  return clusterfromDB
          return None
  
      def get_instance_from_cluster_db(self, cluster_id=None, hostname=None):
          if (not cluster_id) or (not  hostname):
              print "Got to provide cluster id and hostname!!!"
          else:
              con = sqlite.connect(self.db_file)
              cur = con.cursor()
              try:
                  instanceFromClusterDB = cur.execute('select * from clusters where cluster_id = \"'+cluster_id+'\" and hostname = \"'+hostname+'\"'
                          ).fetchall()
                  con.commit()
              except sqlite.DatabaseError:
                  print "ERROR in select"
                  return None
              
              if len(instanceFromClusterDB) < 1:
                  print "Have not found the requested instance fromcluster - exiting."
              else:
                  return instanceFromClusterDB[0]
          return None
  
      def get_num_of_running_instances(self, cluster_id=None):
  	con = sqlite.connect(self.db_file)
  	cur = con.cursor()
  	try:
  		instanceFromClusterDB = cur.execute('select * from clusters where cluster_id = \"'+cluster_id+'\"').fetchall()
  		con.commit()
  		return len(instanceFromClusterDB)
  	except sqlite.DatabaseError:
  		print "ERROR in select"
  		return 0
      
      def add_to_cluster_db(self, cluster=None, cluster_id=None):
          ## Add cluster to DB (check for existing records with the same id and remove)
          con = sqlite.connect(self.db_file)
          cur = con.cursor()
              
          try:
              cur.execute('delete from clusters where cluster_id = \"'+cluster_id+"\""
                      )
              con.commit()
          except sqlite.DatabaseError:
              print "No previous entries"
              
          for (clusterkey,clustervalue) in cluster.items():
              try:
                 cur.execute(""" insert into clusters(cluster_id, hostname, ip_address) 
                                                      values  (?,?,?)""",
                              (cluster_id, clusterkey, clustervalue.ip_address)
                              )
                 con.commit()
              except sqlite.DatabaseError, e:
                  print e.message
                  print "ERROR in insert"
  
          cur.close()
          con.close()
      
      def rem_from_cluster_db(self, cluster_id=None, hostname=None):
          ## Add cluster to DB (check for existing records with the same id and remove)
          con = sqlite.connect(self.db_file)
          cur = con.cursor()
              
          try:
              cur.execute('delete from clusters where cluster_id = \"'+cluster_id+"\" and hostname = \""+hostname+"\"" 
                      )
              con.commit()
          except sqlite.DatabaseError:
              print "Error in delete"
              
          cur.close()
          con.close()
  
  
      def get_hostname(self, cluster_id=None, ip_address=None):
  	con = sqlite.connect(self.db_file)
          cur = con.cursor()
          try:
              hostnames = cur.execute('select hostname from clusters where cluster_id = \"'+cluster_id+"\" and ip_address = \""+ip_address+"\"" 
                      ).fetchall()
              con.commit()
  	    return hostnames[0]
          except sqlite.DatabaseError:
              print "Error in delete"
              return []
          cur.close()
          con.close()
  
      def mkdir_p(self,path):
  	    try:
  		os.makedirs(path)
  	    except OSError as exc: # Python >2.5
  		if exc.errno == errno.EEXIST and os.path.isdir(path):
  		    pass
  		else: raise
  
      def median(self, mylist):
  	sorts = sorted(mylist)
  	length = len(sorts)
  	if not length % 2:
  		return (sorts[length / 2] + sorts[length / 2 - 1]) / 2.0
  	return sorts[length / 2]
  
      def interpolate_metrics(self, memory, state, cur_lambda):
  	state = str(state)
  	lambdaDict = {}
  	throughputList = []
  	latencyList = []
  	#the maximum from the smaller lambdas
  	max_smaller_lambda = [-1,0,0,0]
  	#the minimum from the greater lambdas
  	min_greater_lambda = [-1,0,0,0]
  	for j in memory[state]['arrayMeas']:
  		if cur_lambda <= j[0]:
  			if (j[0] <= min_greater_lambda[0] or min_greater_lambda[0] == -1):
  				min_greater_lambda = j
  		else:
  			if (j[0] >= max_smaller_lambda[0] or max_smaller_lambda[0] == -1):
  				max_smaller_lambda = j
  		if j[0] in lambdaDict:
  			lambdaDict[j[0]][0].append(j[1])
  			lambdaDict[j[0]][1].append(j[2])
  		else:
  			lambdaDict[j[0]] = ([j[1]],[j[2]])
  
  	ordered_lambda = OrderedDict(sorted(lambdaDict.items()))
  	throughputList = []
  	latencyList = []
  	for l in ordered_lambda.values():
  		throughputList.append(self.median(l[0]))
  		latencyList.append(self.median(l[1]))
  	if (min_greater_lambda[0] == -1) or (max_smaller_lambda[0] == -1):
  #		print state 
  #		print cur_lambda
  #		print str(memory[state]['arrayMeas'])
  #		print "ordered set -> " + str(ordered_lambda)
  		fc_thr = UnivariateSpline(ordered_lambda.keys(),throughputList, k=1)
  		thr = fc_thr(cur_lambda)
  		fc_lat = UnivariateSpline(ordered_lambda.keys(),latencyList, k=1)
  		lat = fc_lat(cur_lambda)
  	else:
  		thr = np.interp(cur_lambda,ordered_lambda.keys(),throughputList)
  		lat = np.interp(cur_lambda,ordered_lambda.keys(),latencyList)
  	return (thr, lat)
  
      
  #    def thr(self, vm, inlambda):
  #	if(3000*vm<inlambda) :
  #		return (3000.0*vm - 0.03*inlambda + self.myR(-0.05*(3000.0*vm - 0.03*inlambda),0.0));
  #	else:  
  #		return inlambda+self.myR(-0.1*inlambda, 0.0); 
  
  
  #    def lat(self, vm, inlambda):
  #	if(8000*vm<inlambda): 
  #		return (4*vm)+0.00001*(inlambda-8000.0*vm)*(inlambda-8000.0*vm)+self.myR(0.0, 0.000001*(inlambda-8000.0*vm)*(inlambda-8000.0*vm));
  #	else:  
  #		return (0.0005*inlambda + self.myR(0.0, 10.0)); 
  
  #    def myR(self, apo,ews):
  #	return ((ews-apo)*random.uniform(0,1))+apo;
      
      def read_properties(self, property_file="Coordinator.properties"):
              """ process properties file """
              ## Reads the configuration properties
              cfg = ConfigParser()
              cfg.read(property_file)
              self.install_dir = cfg.get("config", "install_dir")
  	    self.logs_folder_name = 'logs'
              #self.euca_rc_dir = cfg.get("config", "euca_rc_dir")
              self.bucket_name = cfg.get("config", "bucket_name")
              self.master_bucket_name = cfg.get("config", "master_bucket_name")
              self.instance_type = cfg.get("config", "instance_type")
  	    self.master_instance_type = cfg.get("config", "master_instance_type")
              self.cluster_name = cfg.get("config", "cluster_name")
              self.hostname_template = cfg.get("config", "hostname_template")
              self.cluster_type = cfg.get("config", "cluster_type")
              self.db_file = cfg.get("config", "db_file")
              self.cloud_api_type = cfg.get("config", "cloud_api_type")
              self.rabbit_maxmem = int(cfg.get("config", "rabbit_maxmem"))
              self.panther_maxmem = int(cfg.get("config", "panther_maxmem"))
              self.deer_maxmem = int(cfg.get("config", "deer_maxmem"))
  	    self.anaconda_maxmem = int(cfg.get("config", "anaconda_maxmem"))
              self.initial_cluster_size = int(cfg.get("config", "initial_cluster_size"))
  	    self.ownerTag = cfg.get("config", "ownerTag")
  
  
  	    self.reconfigure = eval(cfg.get("config", "reconfigure"))
  
  
  	    if(self.cloud_api_type == 'ganeti'):
  		self.disk = self.instance_type.split('_')[0]
  	    	self.cpu = self.instance_type.split('_')[1]
  	    	self.ram = self.instance_type.split('_')[2]
  		self.m_disk = self.master_instance_type.split('_')[0]
  	    	self.m_cpu = self.master_instance_type.split('_')[1]
  	    	self.m_ram = self.master_instance_type.split('_')[2]
              self.logging_level = logging.DEBUG if cfg.get("config","logging_level") == "debug" else logging.INFO;