cocluto/SimpaDbUtil.py

139 lines
4.6 KiB
Python

import MySQLdb
import time
import subprocess
import StringIO
import re
from wol import *
import os
import signal
from Util import *
def isMachineResponding(machineName):
(returnCode, stdout, stderr) = executeProgram( [ 'ping', '-o', '-t', '1', machineName ] )
#log( 'isMachineResponding : result of command %s : %d' % (command, returnCode) )
if returnCode == 0:
return True
else:
bMachineNameIsNotKnown = (returnCode == 68)
bMachineIsNotResponding = (returnCode == 2)
if bMachineIsNotResponding == False:
bBUG_00000004_IS_STILL_ALIVE = True
if bBUG_00000004_IS_STILL_ALIVE == True and returnCode == 142:
log('isMachineResponding : bug00000004 Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName) )
# don't stop the program until we understand bug00000004
elif bBUG_00000004_IS_STILL_ALIVE == True and returnCode == -14: # I had this error code on 07/09/2009 20:38 but I don't know yet what that means
log('isMachineResponding : bug00000004 Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName) )
# don't stop the program until we understand bug00000004
else:
log('isMachineResponding : Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName) )
assert(False)
return False
def machineNameToMacAddress( machineName ):
conn = MySQLdb.connect('simpatix10', 'simpadb_reader', '', 'simpadb')
assert(conn)
sqlQuery = """SELECT mac_address FROM ethernet_cards WHERE machine_name='"""+machineName+"""' AND type='normal'"""
#print sqlQuery
conn.query( sqlQuery )
r=conn.store_result()
row = r.fetch_row(0)
assert( len(row) == 1 )
#print 'row =', row
macAddress = row[0][0]
#print macAddress
conn.close()
return macAddress
def getLightOutManagementIpAddress( machineName ):
"""
the light out management ip of servers allows to talk to the server even when it's asleep
"""
conn = MySQLdb.connect('simpatix10', 'simpadb_reader', '', 'simpadb')
assert(conn)
sqlQuery = """SELECT ip_address_1,ip_address_2,ip_address_3,ip_address_4 FROM ethernet_cards WHERE machine_name='"""+machineName+"""' AND type='light_out_management'"""
#print sqlQuery
conn.query( sqlQuery )
r=conn.store_result()
row = r.fetch_row(0)
assert( len(row) == 1 )
#print 'row =', row
ipAddress = ('%s.%s.%s.%s') % (row[0][0], row[0][1], row[0][2], row[0][3])
#print macAddress
conn.close()
return ipAddress
def getClusterMachinesNames():
clusterMachinesNames = []
conn = MySQLdb.connect('simpatix10', 'simpadb_reader', '', 'simpadb')
assert(conn)
sqlQuery = """SELECT name FROM machines WHERE affectation='cluster'"""
#print sqlQuery
conn.query( sqlQuery )
r=conn.store_result()
rows = r.fetch_row(0)
for row in rows:
#print row
clusterMachinesNames.append( row[0] )
conn.close()
return clusterMachinesNames
def machineSupportsIpmi( machineName ):
if (machineName == 'simpatix') or (machineName == 'simpatix01' or (machineName == 'simpa-mac2')):
# the command ipmitool sensor on simpatix doesn't work :
# Unabled to establish a session with the BMC.
# Command failed due to Unknown (0xFFFEF921) (0xFFFEF921)
return False
return True
def putToSleep( machineName ):
# note : pmset must be executed as root
(returnCode, stdout, stderr) = executeCommand([ 'ssh', machineName, 'pmset sleepnow' ])
"""
print returnCode
print 'stdout :'
print stdout
print 'stderr :'
print stderr
"""
assert( returnCode == 0 )
# check if the command succeeded by looking at the output (that's the only way I found)
f = StringIO.StringIO(stdout)
line = f.readline()
f.close()
matchObj = re.match('^Sleeping now...', line)
if matchObj:
return True
else:
return False
def wakeUp(machineName):
macAddress = machineNameToMacAddress( machineName )
wake_on_lan(macAddress)
return True
def isNonRespondingMachineSleeping(machineName):
"""
note : crappy method to detect if the machine is sleeping (if other methods are available, I would be very interested)
"""
wakeUp(machineName)
time.sleep(120)
if isMachineResponding( machineName ):
putToSleep( machineName )
time.sleep(30) # allow a little time to make sure the machine is ready to receive other wake on lan messages
return True
else:
return False
if __name__ == '__main__':
"""
for i in range(30):
machineName = 'simpatix%d' % (i+10)
print 'lom ip of %s is %s' % (machineName, getLightOutManagementIpAddress(machineName))
"""
wakeUp('simpatix21')
#print putToSleep('simpatix13')
#print isNonRespondingMachineSleeping('simpatix13')