447 lines
16 KiB
Python
Executable File
447 lines
16 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import sys
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import os
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import mysql.connector
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from mysql.connector import errorcode
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import logging
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import getopt
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import time
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class UpgradeParams:
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log_filename = 'upgrade_checker.log'
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old_version = '4.0.0.0'
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#### --------------start : my_error.py --------------
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class MyError(Exception):
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def __init__(self, value):
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self.value = value
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def __str__(self):
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return repr(self.value)
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#### --------------start : actions.py------------
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class Cursor:
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__cursor = None
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def __init__(self, cursor):
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self.__cursor = cursor
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def exec_sql(self, sql, print_when_succ = True):
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try:
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self.__cursor.execute(sql)
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rowcount = self.__cursor.rowcount
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if True == print_when_succ:
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logging.info('succeed to execute sql: %s, rowcount = %d', sql, rowcount)
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return rowcount
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except mysql.connector.Error, e:
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logging.exception('mysql connector error, fail to execute sql: %s', sql)
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raise e
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except Exception, e:
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logging.exception('normal error, fail to execute sql: %s', sql)
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raise e
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def exec_query(self, sql, print_when_succ = True):
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try:
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self.__cursor.execute(sql)
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results = self.__cursor.fetchall()
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rowcount = self.__cursor.rowcount
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if True == print_when_succ:
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logging.info('succeed to execute query: %s, rowcount = %d', sql, rowcount)
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return (self.__cursor.description, results)
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except mysql.connector.Error, e:
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logging.exception('mysql connector error, fail to execute sql: %s', sql)
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raise e
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except Exception, e:
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logging.exception('normal error, fail to execute sql: %s', sql)
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raise e
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def set_parameter(cur, parameter, value):
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sql = """alter system set {0} = '{1}'""".format(parameter, value)
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logging.info(sql)
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cur.execute(sql)
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wait_parameter_sync(cur, parameter, value)
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def wait_parameter_sync(cur, key, value):
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sql = """select count(*) as cnt from oceanbase.__all_virtual_sys_parameter_stat
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where name = '{0}' and value != '{1}'""".format(key, value)
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times = 10
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while times > 0:
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logging.info(sql)
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cur.execute(sql)
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result = cur.fetchall()
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if len(result) != 1 or len(result[0]) != 1:
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logging.exception('result cnt not match')
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raise e
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elif result[0][0] == 0:
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logging.info("""{0} is sync, value is {1}""".format(key, value))
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break
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else:
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logging.info("""{0} is not sync, value should be {1}""".format(key, value))
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times -= 1
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if times == 0:
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logging.exception("""check {0}:{1} sync timeout""".format(key, value))
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raise e
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time.sleep(5)
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#### --------------start : opt.py --------------
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help_str = \
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"""
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Help:
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""" +\
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sys.argv[0] + """ [OPTIONS]""" +\
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'\n\n' +\
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'-I, --help Display this help and exit.\n' +\
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'-V, --version Output version information and exit.\n' +\
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'-h, --host=name Connect to host.\n' +\
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'-P, --port=name Port number to use for connection.\n' +\
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'-u, --user=name User for login.\n' +\
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'-p, --password=name Password to use when connecting to server. If password is\n' +\
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' not given it\'s empty string "".\n' +\
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'-m, --module=name Modules to run. Modules should be a string combined by some of\n' +\
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' the following strings: ddl, normal_dml, each_tenant_dml,\n' +\
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' system_variable_dml, special_action, all. "all" represents\n' +\
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' that all modules should be run. They are splitted by ",".\n' +\
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' For example: -m all, or --module=ddl,normal_dml,special_action\n' +\
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'-l, --log-file=name Log file path. If log file path is not given it\'s ' + os.path.splitext(sys.argv[0])[0] + '.log\n' +\
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'\n\n' +\
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'Maybe you want to run cmd like that:\n' +\
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sys.argv[0] + ' -h 127.0.0.1 -P 3306 -u admin -p admin\n'
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version_str = """version 1.0.0"""
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class Option:
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__g_short_name_set = set([])
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__g_long_name_set = set([])
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__short_name = None
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__long_name = None
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__is_with_param = None
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__is_local_opt = None
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__has_value = None
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__value = None
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def __init__(self, short_name, long_name, is_with_param, is_local_opt, default_value = None):
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if short_name in Option.__g_short_name_set:
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raise MyError('duplicate option short name: {0}'.format(short_name))
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elif long_name in Option.__g_long_name_set:
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raise MyError('duplicate option long name: {0}'.format(long_name))
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Option.__g_short_name_set.add(short_name)
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Option.__g_long_name_set.add(long_name)
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self.__short_name = short_name
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self.__long_name = long_name
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self.__is_with_param = is_with_param
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self.__is_local_opt = is_local_opt
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self.__has_value = False
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if None != default_value:
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self.set_value(default_value)
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def is_with_param(self):
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return self.__is_with_param
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def get_short_name(self):
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return self.__short_name
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def get_long_name(self):
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return self.__long_name
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def has_value(self):
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return self.__has_value
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def get_value(self):
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return self.__value
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def set_value(self, value):
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self.__value = value
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self.__has_value = True
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def is_local_opt(self):
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return self.__is_local_opt
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def is_valid(self):
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return None != self.__short_name and None != self.__long_name and True == self.__has_value and None != self.__value
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g_opts =\
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[\
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Option('I', 'help', False, True),\
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Option('V', 'version', False, True),\
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Option('h', 'host', True, False),\
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Option('P', 'port', True, False),\
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Option('u', 'user', True, False),\
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Option('p', 'password', True, False, ''),\
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# 要跑哪个模块，默认全跑
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Option('m', 'module', True, False, 'all'),\
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# 日志文件路径，不同脚本的main函数中中会改成不同的默认值
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Option('l', 'log-file', True, False)
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]\
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def change_opt_defult_value(opt_long_name, opt_default_val):
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global g_opts
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for opt in g_opts:
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if opt.get_long_name() == opt_long_name:
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opt.set_value(opt_default_val)
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return
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def has_no_local_opts():
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global g_opts
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no_local_opts = True
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for opt in g_opts:
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if opt.is_local_opt() and opt.has_value():
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no_local_opts = False
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return no_local_opts
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def check_db_client_opts():
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global g_opts
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for opt in g_opts:
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if not opt.is_local_opt() and not opt.has_value():
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raise MyError('option "-{0}" has not been specified, maybe you should run "{1} --help" for help'\
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.format(opt.get_short_name(), sys.argv[0]))
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def parse_option(opt_name, opt_val):
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global g_opts
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for opt in g_opts:
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if opt_name in (('-' + opt.get_short_name()), ('--' + opt.get_long_name())):
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opt.set_value(opt_val)
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def parse_options(argv):
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global g_opts
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short_opt_str = ''
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long_opt_list = []
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for opt in g_opts:
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if opt.is_with_param():
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short_opt_str += opt.get_short_name() + ':'
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else:
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short_opt_str += opt.get_short_name()
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for opt in g_opts:
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if opt.is_with_param():
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long_opt_list.append(opt.get_long_name() + '=')
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else:
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long_opt_list.append(opt.get_long_name())
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(opts, args) = getopt.getopt(argv, short_opt_str, long_opt_list)
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for (opt_name, opt_val) in opts:
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parse_option(opt_name, opt_val)
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if has_no_local_opts():
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check_db_client_opts()
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def deal_with_local_opt(opt):
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if 'help' == opt.get_long_name():
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global help_str
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print help_str
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elif 'version' == opt.get_long_name():
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global version_str
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print version_str
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def deal_with_local_opts():
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global g_opts
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if has_no_local_opts():
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raise MyError('no local options, can not deal with local options')
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else:
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for opt in g_opts:
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if opt.is_local_opt() and opt.has_value():
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deal_with_local_opt(opt)
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# 只处理一个
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return
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def get_opt_host():
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global g_opts
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for opt in g_opts:
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if 'host' == opt.get_long_name():
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return opt.get_value()
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def get_opt_port():
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global g_opts
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for opt in g_opts:
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if 'port' == opt.get_long_name():
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return opt.get_value()
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def get_opt_user():
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global g_opts
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for opt in g_opts:
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if 'user' == opt.get_long_name():
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return opt.get_value()
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def get_opt_password():
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global g_opts
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for opt in g_opts:
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if 'password' == opt.get_long_name():
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return opt.get_value()
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def get_opt_module():
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global g_opts
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for opt in g_opts:
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if 'module' == opt.get_long_name():
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return opt.get_value()
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def get_opt_log_file():
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global g_opts
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for opt in g_opts:
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if 'log-file' == opt.get_long_name():
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return opt.get_value()
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#### ---------------end----------------------
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#### --------------start : do_upgrade_pre.py--------------
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def config_logging_module(log_filenamme):
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logging.basicConfig(level=logging.INFO,\
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format='[%(asctime)s] %(levelname)s %(filename)s:%(lineno)d %(message)s',\
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datefmt='%Y-%m-%d %H:%M:%S',\
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filename=log_filenamme,\
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filemode='w')
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# 定义日志打印格式
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formatter = logging.Formatter('[%(asctime)s] %(levelname)s %(filename)s:%(lineno)d %(message)s', '%Y-%m-%d %H:%M:%S')
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#######################################
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# 定义一个Handler打印INFO及以上级别的日志到sys.stdout
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stdout_handler = logging.StreamHandler(sys.stdout)
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stdout_handler.setLevel(logging.INFO)
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# 设置日志打印格式
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stdout_handler.setFormatter(formatter)
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# 将定义好的stdout_handler日志handler添加到root logger
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logging.getLogger('').addHandler(stdout_handler)
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#### ---------------end----------------------
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fail_list=[]
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#### START ####
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# 1. 检查前置版本
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def check_observer_version(query_cur, upgrade_params):
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(desc, results) = query_cur.exec_query("""select distinct value from GV$OB_PARAMETERS where name='min_observer_version'""")
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if len(results) != 1:
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fail_list.append('query results count is not 1')
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elif cmp(results[0][0], upgrade_params.old_version) < 0 :
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fail_list.append('old observer version is expected equal or higher then: {0}, actual version:{1}'.format(upgrade_params.old_version, results[0][0]))
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logging.info('check observer version success, version = {0}'.format(results[0][0]))
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# 2. 检查paxos副本是否同步, paxos副本是否缺失
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def check_paxos_replica(query_cur):
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# 2.1 检查paxos副本是否同步
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(desc, results) = query_cur.exec_query("""select count(1) as unsync_cnt from GV$OB_LOG_STAT where in_sync = 'NO'""")
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if results[0][0] > 0 :
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fail_list.append('{0} replicas unsync, please check'.format(results[0][0]))
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# 2.2 检查paxos副本是否有缺失 TODO
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logging.info('check paxos replica success')
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# 3. 检查是否有做balance, locality变更
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def check_rebalance_task(query_cur):
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# 3.1 检查是否有做locality变更
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(desc, results) = query_cur.exec_query("""select count(1) as cnt from DBA_OB_TENANT_JOBS where job_status='INPROGRESS' and result_code is null""")
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if results[0][0] > 0 :
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fail_list.append('{0} locality tasks is doing, please check'.format(results[0][0]))
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# 3.2 检查是否有做balance
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(desc, results) = query_cur.exec_query("""select count(1) as rebalance_task_cnt from CDB_OB_LS_REPLICA_TASKS""")
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if results[0][0] > 0 :
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fail_list.append('{0} rebalance tasks is doing, please check'.format(results[0][0]))
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logging.info('check rebalance task success')
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# 4. 检查集群状态
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def check_cluster_status(query_cur):
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# 4.1 检查是否非合并状态
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(desc, results) = query_cur.exec_query("""select count(1) from CDB_OB_MAJOR_COMPACTION where STATUS != 'IDLE'""")
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if results[0][0] > 0 :
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fail_list.append('{0} tenant is merging, please check'.format(results[0][0]))
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logging.info('check cluster status success')
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# 5. 检查是否有异常租户(creating，延迟删除，恢复中)
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def check_tenant_status(query_cur):
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(desc, results) = query_cur.exec_query("""select count(*) as count from DBA_OB_TENANTS where status != 'NORMAL'""")
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if len(results) != 1 or len(results[0]) != 1:
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fail_list.append('results len not match')
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elif 0 != results[0][0]:
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fail_list.append('has abnormal tenant, should stop')
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else:
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logging.info('check tenant status success')
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# 6. 检查无恢复任务
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def check_restore_job_exist(query_cur):
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(desc, results) = query_cur.exec_query("""select count(1) from CDB_OB_RESTORE_PROGRESS""")
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if len(results) != 1 or len(results[0]) != 1:
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fail_list.append('failed to restore job cnt')
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elif results[0][0] != 0:
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fail_list.append("""still has restore job, upgrade is not allowed temporarily""")
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logging.info('check restore job success')
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def check_is_primary_zone_distributed(primary_zone_str):
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semicolon_pos = len(primary_zone_str)
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for i in range(len(primary_zone_str)):
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if primary_zone_str[i] == ';':
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semicolon_pos = i
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break
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comma_pos = len(primary_zone_str)
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for j in range(len(primary_zone_str)):
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if primary_zone_str[j] == ',':
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comma_pos = j
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break
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if comma_pos < semicolon_pos:
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return True
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else:
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return False
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# 7. 升级前需要primary zone只有一个
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def check_tenant_primary_zone(query_cur):
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(desc, results) = query_cur.exec_query("""select tenant_name,primary_zone from DBA_OB_TENANTS where tenant_id != 1""");
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for item in results:
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if cmp(item[1], "RANDOM") == 0:
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fail_list.append('{0} tenant primary zone random before update not allowed'.format(item[0]))
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elif check_is_primary_zone_distributed(item[1]):
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fail_list.append('{0} tenant primary zone distributed before update not allowed'.format(item[0]))
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logging.info('check tenant primary zone success')
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# 8. 修改永久下线的时间，避免升级过程中缺副本
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def modify_server_permanent_offline_time(cur):
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set_parameter(cur, 'server_permanent_offline_time', '72h')
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# last check of do_check, make sure no function execute after check_fail_list
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def check_fail_list():
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if len(fail_list) != 0 :
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error_msg ="upgrade checker failed with " + str(len(fail_list)) + " reasons: " + ", ".join(['['+x+"] " for x in fail_list])
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raise MyError(error_msg)
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# 开始升级前的检查
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def do_check(my_host, my_port, my_user, my_passwd, upgrade_params):
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try:
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conn = mysql.connector.connect(user = my_user,
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password = my_passwd,
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host = my_host,
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port = my_port,
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database = 'oceanbase',
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raise_on_warnings = True)
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conn.autocommit = True
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cur = conn.cursor(buffered=True)
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try:
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query_cur = Cursor(cur)
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check_observer_version(query_cur, upgrade_params)
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check_paxos_replica(query_cur)
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check_rebalance_task(query_cur)
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check_cluster_status(query_cur)
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check_tenant_status(query_cur)
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check_restore_job_exist(query_cur)
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check_tenant_primary_zone(query_cur)
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# all check func should execute before check_fail_list
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check_fail_list()
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#modify_server_permanent_offline_time(cur)
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except Exception, e:
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logging.exception('run error')
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raise e
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finally:
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cur.close()
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conn.close()
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except mysql.connector.Error, e:
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logging.exception('connection error')
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raise e
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except Exception, e:
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logging.exception('normal error')
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raise e
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if __name__ == '__main__':
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upgrade_params = UpgradeParams()
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change_opt_defult_value('log-file', upgrade_params.log_filename)
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parse_options(sys.argv[1:])
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if not has_no_local_opts():
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deal_with_local_opts()
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else:
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check_db_client_opts()
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log_filename = get_opt_log_file()
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upgrade_params.log_filename = log_filename
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# 日志配置放在这里是为了前面的操作不要覆盖掉日志文件
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config_logging_module(upgrade_params.log_filename)
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try:
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host = get_opt_host()
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port = int(get_opt_port())
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user = get_opt_user()
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password = get_opt_password()
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logging.info('parameters from cmd: host=\"%s\", port=%s, user=\"%s\", password=\"%s\", log-file=\"%s\"',\
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host, port, user, password, log_filename)
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do_check(host, port, user, password, upgrade_params)
|
|
except mysql.connector.Error, e:
|
|
logging.exception('mysql connctor error')
|
|
raise e
|
|
except Exception, e:
|
|
logging.exception('normal error')
|
|
raise e
|