reformatted code to pep8 convention
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c750804914
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107
SimpaDbUtil.py
107
SimpaDbUtil.py
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@ -1,38 +1,38 @@
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import MySQLdb
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import time
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import subprocess
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import StringIO
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import re
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from wol import *
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import os
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import signal
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from Util import *
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import abc
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import sqlite3
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from mysql2sqlite import mysql_to_sqlite
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def isMachineResponding(machineName):
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(returnCode, stdout, stderr) = executeProgram( [ 'ping', '-o', '-t', '1', machineName ] )
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#log( 'isMachineResponding : result of command %s : %d' % (command, returnCode) )
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(returnCode, stdout, stderr) = executeProgram(['ping', '-o', '-t', '1', machineName])
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# log( 'isMachineResponding : result of command %s : %d' % (command, returnCode) )
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if returnCode == 0:
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return True
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else:
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bMachineNameIsNotKnown = (returnCode == 68)
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bMachineIsNotResponding = (returnCode == 2)
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if bMachineIsNotResponding == False:
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if bMachineIsNotResponding is False:
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bBUG_00000004_IS_STILL_ALIVE = True
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if bBUG_00000004_IS_STILL_ALIVE == True and returnCode == 142:
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log('isMachineResponding : bug00000004 Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName) )
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if bBUG_00000004_IS_STILL_ALIVE is True and returnCode == 142:
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log('isMachineResponding : bug00000004 Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName))
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# don't stop the program until we understand bug00000004
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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
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log('isMachineResponding : bug00000004 Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName) )
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elif bBUG_00000004_IS_STILL_ALIVE is True and returnCode == -14: # I had this error code on 07/09/2009 20:38 but I don't know yet what that means
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log('isMachineResponding : bug00000004 Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName))
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# don't stop the program until we understand bug00000004
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else:
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log('isMachineResponding : Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName) )
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log('isMachineResponding : Unexpected return code : returnCode=%d, stdout="%s", stderr="%s" , machineName = %s' % (returnCode, stdout, stderr, machineName))
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assert(False)
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return False
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class ISqlDatabaseBackend(object):
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def __init__(self):
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pass
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@ -44,6 +44,7 @@ class ISqlDatabaseBackend(object):
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"""
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pass
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class RemoteMysqlDb(ISqlDatabaseBackend):
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def __init__(self, db_server_fqdn, db_user, db_name):
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"""
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@ -64,20 +65,20 @@ class RemoteMysqlDb(ISqlDatabaseBackend):
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"""
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:param str sql_query: the sql query to perform
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"""
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self._conn.query( sql_query )
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self._conn.query(sql_query)
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rows = conn.store_result()
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return rows
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class SqlFile(ISqlDatabaseBackend):
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def __init__(self, sql_file_path, truncate_hex_strings = False):
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def __init__(self, sql_file_path, truncate_hex_strings=False):
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"""
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:param str sql_file_path: the path of the sql file containing the inventory database
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"""
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self._sql_file_path = sql_file_path
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self._cur = None # sqlite cursor
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sqlite_db_path=':memory:' # sqlite-specific special name for a file stored in memory. We could use something like '/tmp/simpadb.sqlite' here but this would make parsing really slow (1 minute instead of 1s), unless either :
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sqlite_db_path = ':memory:' # sqlite-specific special name for a file stored in memory. We could use something like '/tmp/simpadb.sqlite' here but this would make parsing really slow (1 minute instead of 1s), unless either :
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# - proper fix : group of INSERT statements are surrounded by BEGIN and COMMIT (see http://stackoverflow.com/questions/4719836/python-and-sqlite3-adding-thousands-of-rows)
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# - the file is stored on a solid state disk
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try:
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@ -92,13 +93,13 @@ class SqlFile(ISqlDatabaseBackend):
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self._con = sqlite3.connect(sqlite_db_path, check_same_thread=check_same_thread)
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f = open(self._sql_file_path, 'r')
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sql = f.read() # watch out for built-in `str`
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#print(sql)
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# print(sql)
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self._cur = self._con.cursor()
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#print(mysql_to_sqlite(sql))
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# print(mysql_to_sqlite(sql))
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sqlite_sql = mysql_to_sqlite(sql, truncate_hex_strings)
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#with open('/tmp/toto.sqlite.sql', 'w') as f:
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# with open('/tmp/toto.sqlite.sql', 'w') as f:
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# f.write(sqlite_sql)
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#with open('/tmp/toto.sqlite.sql', 'r') as f:
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# with open('/tmp/toto.sqlite.sql', 'r') as f:
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# sqlite_sql = f.read()
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self._cur.executescript(sqlite_sql)
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@ -107,7 +108,7 @@ class SqlFile(ISqlDatabaseBackend):
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:param str sql_query: the sql query to perform
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"""
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pass
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self._cur.execute( sql_query )
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self._cur.execute(sql_query)
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rows = self._cur.fetchall()
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return rows
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@ -128,7 +129,7 @@ class SqlDatabaseReader(object):
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"""
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return self._inv_provider.query(sql_query)
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def get_table_attr(self, table, key_name, key_value, attr_name ):
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def get_table_attr(self, table, key_name, key_value, attr_name):
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"""
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reads the value of the fiven attribute of the given item in the given table
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@ -138,41 +139,43 @@ class SqlDatabaseReader(object):
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:param str attr_name: the name of the attribute to read from the item
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"""
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attr_value = None
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rows = self.query("SELECT "+attr_name+" FROM "+table+" WHERE "+key_name+"='"+key_value+"'")
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rows = self.query("SELECT " + attr_name + " FROM " + table + " WHERE " + key_name + "='" + key_value + "'")
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if len(rows) > 0:
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attr_value = rows[0][0]
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return attr_value
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def machineNameToMacAddress( machineName ):
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def machineNameToMacAddress(machineName):
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conn = MySQLdb.connect('simpatix10', 'simpadb_reader', '', 'simpadb')
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assert(conn)
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sqlQuery = """SELECT mac_address FROM ethernet_cards WHERE machine_name='"""+machineName+"""' AND type='normal'"""
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#print sqlQuery
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conn.query( sqlQuery )
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r=conn.store_result()
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sqlQuery = """SELECT mac_address FROM ethernet_cards WHERE machine_name='""" + machineName + """' AND type='normal'"""
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# print sqlQuery
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conn.query(sqlQuery)
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r = conn.store_result()
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row = r.fetch_row(0)
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assert( len(row) == 1 )
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#print 'row =', row
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assert( len(row) == 1)
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# print 'row =', row
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macAddress = row[0][0]
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#print macAddress
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# print macAddress
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conn.close()
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return macAddress
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def getLightOutManagementIpAddress( machineName ):
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def getLightOutManagementIpAddress(machineName):
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"""
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the light out management ip of servers allows to talk to the server even when it's asleep
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"""
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conn = MySQLdb.connect('simpatix10', 'simpadb_reader', '', 'simpadb')
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assert(conn)
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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'"""
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#print sqlQuery
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conn.query( sqlQuery )
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r=conn.store_result()
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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'"""
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# print sqlQuery
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conn.query(sqlQuery)
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r = conn.store_result()
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row = r.fetch_row(0)
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assert( len(row) == 1 )
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#print 'row =', row
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assert(len(row) == 1)
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# print 'row =', row
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ipAddress = ('%s.%s.%s.%s') % (row[0][0], row[0][1], row[0][2], row[0][3])
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#print macAddress
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# print macAddress
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conn.close()
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return ipAddress
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@ -182,17 +185,18 @@ def getClusterMachinesNames():
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conn = MySQLdb.connect('simpatix10', 'simpadb_reader', '', 'simpadb')
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assert(conn)
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sqlQuery = """SELECT name FROM machines WHERE affectation='cluster'"""
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#print sqlQuery
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conn.query( sqlQuery )
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r=conn.store_result()
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# print sqlQuery
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conn.query(sqlQuery)
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r = conn.store_result()
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rows = r.fetch_row(0)
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for row in rows:
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#print row
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clusterMachinesNames.append( row[0] )
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# print row
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clusterMachinesNames.append(row[0])
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conn.close()
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return clusterMachinesNames
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def machineSupportsIpmi( machineName ):
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def machineSupportsIpmi(machineName):
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if (machineName == 'simpatix') or (machineName == 'simpatix01' or (machineName == 'simpa-mac2')):
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# the command ipmitool sensor on simpatix doesn't work :
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# Unabled to establish a session with the BMC.
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@ -200,9 +204,10 @@ def machineSupportsIpmi( machineName ):
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return False
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return True
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def putToSleep( machineName ):
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def putToSleep(machineName):
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# note : pmset must be executed as root
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(returnCode, stdout, stderr) = executeCommand([ 'ssh', machineName, 'pmset sleepnow' ])
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(returnCode, stdout, stderr) = executeCommand(['ssh', machineName, 'pmset sleepnow'])
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"""
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print returnCode
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print 'stdout :'
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@ -210,7 +215,7 @@ def putToSleep( machineName ):
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print 'stderr :'
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print stderr
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"""
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assert( returnCode == 0 )
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assert(returnCode == 0)
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# check if the command succeeded by looking at the output (that's the only way I found)
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f = StringIO.StringIO(stdout)
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line = f.readline()
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@ -221,8 +226,9 @@ def putToSleep( machineName ):
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else:
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return False
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def wakeUp(machineName):
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macAddress = machineNameToMacAddress( machineName )
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macAddress = machineNameToMacAddress(machineName)
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wake_on_lan(macAddress)
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return True
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@ -233,13 +239,14 @@ def isNonRespondingMachineSleeping(machineName):
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"""
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wakeUp(machineName)
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time.sleep(120)
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if isMachineResponding( machineName ):
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putToSleep( machineName )
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if isMachineResponding(machineName):
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putToSleep(machineName)
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time.sleep(30) # allow a little time to make sure the machine is ready to receive other wake on lan messages
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return True
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else:
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return False
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if __name__ == '__main__':
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"""
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for i in range(30):
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@ -247,5 +254,5 @@ if __name__ == '__main__':
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print 'lom ip of %s is %s' % (machineName, getLightOutManagementIpAddress(machineName))
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"""
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wakeUp('simpatix21')
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#print putToSleep('simpatix13')
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#print isNonRespondingMachineSleeping('simpatix13')
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# print putToSleep('simpatix13')
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# print isNonRespondingMachineSleeping('simpatix13')
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