检查数据库各个系统状态
# -*- coding: utf-8 -*-
'''
Created on 2014年11月25日
@author: wangjunji
@deprecated: check db status
@summary: table tables db statment
'''
import sys
import MySQLdb
import os
import ConfigParser
config = ConfigParser.ConfigParser()
config.read("test.propties")
db_ip = config.get("CONF", "db_ip")
db_username = config.get("CONF", "db_username")
db_userpassword = config.get("CONF", "db_userpassword")
db_name = config.get("CONF", "db_name")
db_time_begin = config.get("CONF", "db_time_begin")
db_time_end = config.get("CONF", "db_time_end")
host = db_ip
user = db_username
passwd = db_userpassword
db = db_name
try:
mydb = MySQLdb.connect(host, user, passwd)
cursor = mydb.cursor()
statement = "USE %s" % (db)
cursor.execute(statement)
except MySQLdb.Error, e:
print "There was a problem in accessing the database %s with the credentials you provided. Please check the privileges of the user account and retry. The error and other debugging information follow below.\n\n%s" % (db, e)
class Database:
def __init__(self):
"A class representation for MySQL database metadata"
self.database = []
# Execute straightforward queries
def fetchquery(self, statement):
"Internal method that takes a statement and executes the query, returning the results"
try:
runit = cursor.execute(statement)
results = cursor.fetchall()
except MySQLdb.Error, e:
results = "The query you attempted failed. Please verify the information you have submitted and try again. The error message that was received reads: %s" % (e)
return results
def tables(self):
"Returns a list of the database tables"
statement = "SHOW TABLES"
header = ("Tables")
results = self.fetchquery(statement)
return header, results
def tbstats(self):
"Returns the results of TABLE STATUS for the current db"
header = ("Name", "Engine", "Version", "Row_format", "Rows", "Avg_row_length", "Data_length", "Max_data_length", "Index_length", "Data_free", "Auto_increment", "Create_time", "Update_time", "Check_time", "Collation", "Checksum", "Create_options", "Comment")
statement = "SHOW TABLE STATUS"
results = self.fetchquery(statement)
return header, results
def describe(self, tablename):
"Returns the column structure of a specified table"
header = ("Field", "Type", "Null", " Key", "Default", "Extra")
statement = "SHOW COLUMNS FROM %s" % (tablename)
results = self.fetchquery(statement)
return header, results
# Retrieve CREATE statements
def getcreate(self, type, name):
"Internal method that returns the CREATE statement of an object when given the object type and name"
statement = "SHOW CREATE %s %s" % (type, name)
results = self.fetchquery(statement)
return results
def dbcreate(self):
"Returns the CREATE statement for the current db"
type = "DATABASE"
name = db
header = ("Database", "Create Database")
results = self.getcreate(type, name)
return header, results
def tbcreate(self, tbname):
"Returns the CREATE statement for a specified table"
type = "TABLE"
header = ("Table, Create Table")
results = self.getcreate(type, tbname)
return header, results
def resproc(finput):
"Compiles the headers and results into a report"
header = finput[0]
results = finput[1]
output = {}
c = 0
for r in xrange(0, len(results)):
record = results[r]
outrecord = {}
for column in xrange(0, len(header)):
outrecord[header[column]] = record[column]
output[str(c)] = outrecord
c += 1
orecord = ""
for record in xrange(0, len(results)):
record = str(record)
item = output[record]
for k in header:
outline = "%s : %s\n" % (k, item[k])
orecord = orecord + outline
orecord = orecord + '\n\n'
return orecord
def main():
mydb = Database()
tables = mydb.tables()
# print tables
print "Tables of %s" % (db)
for c in xrange(0, len(tables[1])):
print tables[1][c][0]
print '\n\n'
tablestats = mydb.tbstats()
print "Table Statuses"
print resproc(tablestats)
print '\n\n'
dbcreation = mydb.dbcreate()
print "Database CREATE Statement"
print resproc(dbcreation)
print '\n\n'
if __name__ == '__main__':
main()数据库状态检查
