用python写的一段小脚本zabbix调用监控mysql的QPS和TPS

写这段脚本不是为了别的,只是自己熟练掌握类的操作 另外还熟释一些函数,那么zabbix监控mysql,其中涉及到了一些计算,在配置文件不能进行计算,我觉得不太可能,所以写了这么一段脚本,功能得实现,因为知识面有限,后面遇到再继续优化吧

贴上代码如下:

#!/usr/bin/env python
#coding=utf-8
 
import sys
import os
import commands
 
class QpsTps(object):
    def __init__(self):
        self.QPS = ''
        self.TPS = ''
    def getQps(self):
        (Queries,QPS_result) = commands.getstatusoutput("mysqladmin -uroot -p123456 extended-status | grep 'Queries' | cut -d'|' -f3")
        self.QPS = int(QPS_result)
        return self.QPS
    def getTps(self):
        (Com_commit,cm_result) = commands.getstatusoutput("mysqladmin -uroot -p123456 extended-status | grep 'Com_commit' | cut -d'|' -f3 ")
        (Com_rollback,rb_result) = commands.getstatusoutput("mysqladmin -uroot -p123456 extended-status | grep 'Com_rollback' | cut -d'|' -f3 | awk 'NR==1'")
        self.TPS = int(cm_result) + int(rb_result)
        return self.TPS
 
class error_out(object):
    def error_print(self):
        '''代入值少输,输出错误'''
        print
        print 'Usage : ' + sys.argv[0] + ' MysqlStatusKey '
        print
        sys.exit(1)
 
class Main(object):
    def main(self):
        if len(sys.argv) == 1:
            error = error_out()
            error.error_print()
        elif sys.argv[1] == 'QPS':
            a = QpsTps()
            print a.getQps()
        elif sys.argv[1] == 'TPS':
            a = QpsTps()
            print a.getTps()
 
if __name__ == '__main__':
    main_obj = Main()
    main_obj.main()

将代码上传至系统,赋值权限,在zabbix的mysql配置文中加入:

UserParameter=mysql.QPS,python /usr/local/zabbix/scripts/get_qps_tps.py QPS
UserParameter=mysql.TPS,python /usr/local/zabbix/scripts/get_qps_tps.py TPS

服务端取值测试:

# /usr/local/zabbix/bin/zabbix_get -s 10.16.1.68 -p 10050 -k"mysql.QPS"
1783724
# /usr/local/zabbix/bin/zabbix_get -s 127.0.0.1 -p 10050 -k"mysql.QPS"    
3695982
# /usr/local/zabbix/bin/zabbix_get -s 127.0.0.1 -p 10050 -k"mysql.TPS"
278279

优化版:

#!/usr/bin/env python
#coding=utf-8
 
import sys
import os
import time
import commands
from db_init import InitDb
 
class MysqlPeerStatus(object):
    def __init__(self):
        a = InitDb()
        a.readconfigfile()
        self.user = a.GetUser()
        self.passwd = a.GetPasswd()
        self.value = 0
    def GetValue(self, key):
        (temp,last) = commands.getstatusoutput("mysqladmin -u%s -p%s extended-status | grep '%s>' | cut -d'|' -f3"%(self.user,self.passwd,key))
        last = float(last)
        return last
 
class MysqlQpsTps(object):
    def __init__(self):
        """init"""
        self.a = MysqlPeerStatus()
        for key in ('Com_insert','Com_update', 'Com_delete', 'Com_select'):
            if key == 'Com_insert':
                self.com_insert = self.a.GetValue(key)
            elif key == 'Com_update':
                self.com_update = self.a.GetValue(key)
            elif key == 'Com_delete':
                self.com_delete = self.a.GetValue(key)
            else:
                self.com_select = self.a.GetValue(key)
 
    def Tps(self):
        Tps = self.com_insert + self.com_update + self.com_delete
        return Tps
 
    def Qps(self):
        Qps = self.com_insert + self.com_update + self.com_delete + self.com_select
        return Qps
 
class InnodbBufferStatus(object):
    def __init__(self):
        """init"""
        self.a = MysqlPeerStatus()
        for key in ('Innodb_buffer_pool_pages_total','Innodb_buffer_pool_read_requests','Innodb_buffer_pool_reads', 
                    'Innodb_buffer_pool_pages_free','Innodb_buffer_pool_pages_dirty'):
            if key == 'Innodb_buffer_pool_pages_total':
                self.pages_total = self.a.GetValue(key)
            elif key == 'Innodb_buffer_pool_read_requests':
                self.cache_read = self.a.GetValue(key)
            elif key == 'Innodb_buffer_pool_reads':
                self.disk_read = self.a.GetValue(key)
            elif key == 'Innodb_buffer_pool_pages_free':
                self.free_pages = self.a.GetValue(key)
            else:
                self.pages_dirty = self.a.GetValue(key)
 
    def InnodbBufferReadHitRate(self):
        result = (1 - self.disk_read/self.cache_read) * 100
        return result
 
    def InnodbBufferUsage(self):
        result = (1 - self.free_pages/self.pages_total) * 100
        return result
 
    def InnodbBufferPoolDirtyPercentage(self):
        result = self.pages_dirty/self.pages_total * 100
        return result
 
class error_out(object):
    def error_print(self):
        '''输出错误信息'''
        print
        print 'Usage : ' + sys.argv[0] + ' time ' + ' MysqlStatusKey '
        print 'MysqlStatusKey include (Qps, Tps, innodb_buffer_read_hit_ratio, innodb_buffer_usage, Queries Etc!)'
        print
        sys.exit(1)
 
class Main(object):
    def main(self):
        if len(sys.argv) == 1:
            error = error_out()
            error.error_print()
        elif len(sys.argv) == 2:
            #times = float(sys.argv[1])
            key = sys.argv[1]
            if key == 'innodb_buffer_read_hit_ratio':
                b = InnodbBufferStatus()
                print b.InnodbBufferReadHitRate()
            elif key == 'innodb_buffer_usage':
                b = InnodbBufferStatus()
                print b.InnodbBufferUsage()
            elif key == 'innodb_pages_dirty_percentage':
                b = InnodbBufferStatus()
                print b.InnodbBufferPoolDirtyPercentage()
            elif key == 'Qps':
                b = MysqlQpsTps()
                print b.Qps()
            elif key == 'Tps':
                b = MysqlQpsTps()
                print b.Tps()
            else:
               b = MysqlPeerStatus()
               print b.GetValue(key)
            #print last
            #time.sleep(times)
            #print (b.GetValue(key) - last) / times
 
if __name__ == '__main__':
    main_obj = Main()
    main_obj.main()

上述脚本不适合mysql 5.6 以上版本,所以要用MySQLdb模块去写:

#!/usr/bin/env python
#coding=utf8
 
import sys
import os
 
class GetMysqlStatus():
    def __init__(self):
        self.val = {}
        self.result = {}
 
    def check(self):
        import MySQLdb
        import MySQLdb.cursors
        try:
            self.db = MySQLdb.connect(user="root", passwd="123456",
                                      host="192.168.1.62", port=3306,
                                      cursorclass=MySQLdb.cursors.DictCursor)
        except Exception, e:
            raise Exception, 'Cannot interface with MySQL server, %s' % e
 
    def extract(self, key):
        try:
            c = self.db.cursor()
            c.execute("""show global status like '%s';""" % key)
            self.val = c.fetchone()
            #print self.val
            return float(self.val['Value'])
            c.close()
            self.db.close()
        except Exception, e:
            print e.message
 
    def init(self):
        for key in ('Com_insert', 'Com_delete', 'Com_select', 'Com_rollback',
                    'Com_update', 'Com_commit', 'Innodb_buffer_pool_pages_total',
                    'Innodb_buffer_pool_read_requests', 'Innodb_buffer_pool_reads',
                    'Innodb_buffer_pool_pages_free', 'Innodb_buffer_pool_pages_dirty',
                    'Key_blocks_used', 'Key_blocks_unused', 'Key_reads',
                    'Key_read_requests', 'Key_writes', 'Key_write_requests'):
            self.result[key] = self.extract(key)
 
    def get_tps(self):
        TPS = self.result['Com_commit'] + self.result['Com_rollback']
        return TPS
 
    def get_qps(self):
        QPS = self.result['Com_insert'] + self.result['Com_delete'] + 
              self.result['Com_select'] + self.result['Com_update']
        return QPS
 
    def GetKeyReadHitRatio(self):
        if self.result['Key_read_requests'] == 0:
            Key_read_hit_ratio = 0
        else:
            Key_read_hit_ratio = (1 - self.result['Key_reads'] /
                                  self.result['Key_read_requests']) * 100
        return Key_read_hit_ratio
 
    def GetKeyUsageRatio(self):
        Key_usage_ratio = self.result['Key_blocks_used'] / 
                          (self.result['Key_blocks_used'] + self.result['Key_blocks_unused']) * 100
        return Key_usage_ratio
 
    def GetKeyWriteHitRatio(self):
        if self.result['Key_write_requests'] == 0:
            Key_write_hit_ratio = 0
        else:
            Key_write_hit_ratio = (1 - self.result['Key_writes'] /
                                   self.result['Key_write_requests']) * 100
        return Key_write_hit_ratio
 
    def GetInnodbBufferReadHitRatio(self):
        Innodb_buffer_read_hit_ratio = (1 - self.result['Innodb_buffer_pool_reads'] /
                                        self.result['Innodb_buffer_pool_read_requests']) * 100
        return Innodb_buffer_read_hit_ratio
 
    def GetInnodbBufferPoolUsage(self):
        Innodb_buffer_usage = (1 - self.result['Innodb_buffer_pool_pages_free'] /
                               self.result['Innodb_buffer_pool_pages_total']) * 100
        return Innodb_buffer_usage
 
    def GetInnodbBufferPoolDirtyRatio(self):
        Innodb_buffer_pool_dirty_ratio = (self.result['Innodb_buffer_pool_pages_dirty'] /
                                          self.result['Innodb_buffer_pool_pages_total']) * 100
        return Innodb_buffer_pool_dirty_ratio
 
    def get_alive_status(self):
        import socket
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(1)
        try:
            sock.connect(('192.168.1.62', 3306))
            #print 'MySQL is alive!'
            result = 1
            return result
        except Exception:
            #print 'MySQL 3306 not connect!'
            result = 0
            return result
        sock.close()
 
class ErrorOut():
    def error_print(self):
        """输出错误信息"""
        print
        print 'Usage: ' + sys.argv[0] + ' ' + ' MySQL_Status_Key '
        print
        sys.exit(1)
 
class Main():
    def main(self):
        if len(sys.argv) == 1:
            error = ErrorOut()
            error.error_print()
        elif len(sys.argv) == 2:
            key = sys.argv[1]
            a = GetMysqlStatus()
            a.check()
            a.init()
            if key == 'Innodb_buffer_read_hit_ratio':
                print a.GetInnodbBufferReadHitRatio()
            elif key == 'Innodb_buffer_usage':
                print a.GetInnodbBufferPoolUsage()
            elif key == 'Innodb_buffer_pool_dirty_ratio':
                print a.GetInnodbBufferPoolDirtyRatio()
            elif key == 'QPS':
                print a.get_qps()
            elif key == 'TPS':
                print a.get_tps()
            elif key == 'Key_usage_ratio':
                print a.GetKeyUsageRatio()
            elif key == 'Key_read_hit_ratio':
                print a.GetKeyReadHitRatio()
            elif key == 'Key_write_hit_ratio':
                print a.GetKeyWriteHitRatio()
            elif key == 'MySQL_alive':
                print a.get_alive_status()
            else:
                print a.extract(key)
 
if __name__ == "__main__":
     exe = Main()
     exe.main()

运行:

D:flask>python get_mysql_status.py
 
Usage: get_mysql_status.py  MySQL_Status_Key
 
 
D:flask>python get_mysql_status.py Innodb_buffer_pool_reads
144.0
 
D:flask>python get_mysql_status.py MySQL_alive
1
 
D:flask>python get_mysql_status.py Innodb_buffer_read_hit_ratio
68.6274509804

这样的if else让人有点蛋疼,继续优化代码:

#!/usr/bin/env python
#coding=utf8
 
import sys
import os
import inspect
 
class GetMysqlStatus():
    def __init__(self):
        self.val = {}
        self.result = {}
 
    def check(self):
        import MySQLdb
        import MySQLdb.cursors
        try:
            self.db = MySQLdb.connect(user="root", passwd="LVS@071103",
                                      host="192.168.1.62", port=3306,
                                      cursorclass=MySQLdb.cursors.DictCursor)
        except Exception, e:
            raise Exception, 'Cannot interface with MySQL server, %s' % e
 
    def extract(self, key):
        try:
            c = self.db.cursor()
            c.execute("""show global status like '%s';""" % key)
            self.val = c.fetchone()
            return float(self.val['Value'])
            c.close()
            self.db.close()
        except Exception, e:
            print e.message
 
    def init(self):
        for key in ('Com_insert', 'Com_delete', 'Com_select', 'Com_rollback',
                    'Com_update', 'Com_commit', 'Innodb_buffer_pool_pages_total',
                    'Innodb_buffer_pool_read_requests', 'Innodb_buffer_pool_reads',
                    'Innodb_buffer_pool_pages_free', 'Innodb_buffer_pool_pages_dirty',
                    'Key_blocks_used', 'Key_blocks_unused', 'Key_reads',
                    'Key_read_requests', 'Key_writes', 'Key_write_requests'):
            self.result[key] = self.extract(key)
 
    def TPS(self):
        TPS = self.result['Com_commit'] + self.result['Com_rollback']
        return TPS
 
    def QPS(self):
        QPS = self.result['Com_insert'] + self.result['Com_delete'] + 
              self.result['Com_select'] + self.result['Com_update']
        return QPS
 
    def Key_read_hit_ratio(self):
        if self.result['Key_read_requests'] == 0:
            Key_read_hit_ratio = 0
        else:
            Key_read_hit_ratio = (1 - self.result['Key_reads'] /
                                  self.result['Key_read_requests']) * 100
        return Key_read_hit_ratio
 
    def Key_usage_ratio(self):
        Key_usage_ratio = self.result['Key_blocks_used'] / 
                          (self.result['Key_blocks_used'] + self.result['Key_blocks_unused']) * 100
        return Key_usage_ratio
 
    def Key_write_hit_ratio(self):
        if self.result['Key_write_requests'] == 0:
            Key_write_hit_ratio = 0
        else:
            Key_write_hit_ratio = (1 - self.result['Key_writes'] /
                                   self.result['Key_write_requests']) * 100
        return Key_write_hit_ratio
 
    def Innodb_buffer_read_hit_ratio(self):
        Innodb_buffer_read_hit_ratio = (1 - self.result['Innodb_buffer_pool_reads'] /
                                        self.result['Innodb_buffer_pool_read_requests']) * 100
        return Innodb_buffer_read_hit_ratio
 
    def Innodb_buffer_usage(self):
        Innodb_buffer_usage = (1 - self.result['Innodb_buffer_pool_pages_free'] /
                               self.result['Innodb_buffer_pool_pages_total']) * 100
        return Innodb_buffer_usage
 
    def Innodb_buffer_pool_dirty_ratio(self):
        Innodb_buffer_pool_dirty_ratio = (self.result['Innodb_buffer_pool_pages_dirty'] /
                                          self.result['Innodb_buffer_pool_pages_total']) * 100
        return Innodb_buffer_pool_dirty_ratio
 
    def MySQL_alive(self):
        import socket
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(1)
        try:
            sock.connect(('192.168.1.62', 3306))
            #print 'MySQL is alive!'
            result = 1
            return result
        except Exception:
            #print 'MySQL 3306 not connect!'
            result = 0
            return result
        sock.close()
 
class ErrorOut():
    def error_print(self):
        """输出错误信息"""
        print
        print 'Usage: ' + sys.argv[0] + ' ' + ' MySQL_Status_Key '
        print
        sys.exit(1)
 
class Main():
    def main(self):
        if len(sys.argv) == 1:
            error = ErrorOut()
            error.error_print()
        elif len(sys.argv) == 2:
            method_name = sys.argv[1]
            a = GetMysqlStatus()
            a.check()
            a.init()
            if hasattr(a, method_name):
                print getattr(a, method_name)()
            else:
                print a.extract(method_name)
 
if __name__ == "__main__":
     run = Main()
     run.main()

进一步优化代码,让代码可以根据不同的端口取值,取出的值先存入一个元组,然后遍历元组,取出相应key的值,这样就可以减少对数据库查询:

#!/usr/bin/env python
#coding=utf8
 
import sys
import os
import inspect
import MySQLdb
import MySQLdb.cursors
 
class GetMysqlStatus():
    def __init__(self):
        self.result = ''
        self.each_result = ''
    def check(self, port):
        try:
            self.db = MySQLdb.connect(user="root", passwd="LVS@071103",
                                      host="127.0.0.1", port=port,
                                      cursorclass=MySQLdb.cursors.DictCursor)
        except Exception, e:
            raise Exception, 'Cannot interface with MySQL server, %s' % e
 
    def extract(self):
        try:
            c = self.db.cursor()
            c.execute("""show global status;""")
            self.result = c.fetchall()
            return self.result
            c.close()
            self.db.close()
        except Exception, e:
            print e
 
    def getVal(self, key):
        for i in self.result:
            if i['Variable_name'] == key:
                self.each_result = i['Value']
        return self.each_result
 
    def TPS(self):
        TPS = int(self.getVal('Com_commit')) + int(self.getVal('Com_rollback'))
        return TPS
 
    def QPS(self):
        return int(self.getVal('Com_insert')) + int(self.getVal('Com_delete')) + int(self.getVal('Com_select')) + int(self.getVal('Com_update'))
 
    def Key_read_hit_ratio(self):
        try:
            Key_read_hit_ratio = (1 - float(self.getVal('Key_reads'))  / float(self.getVal('Key_read_requests'))) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Key_read_hit_ratio
 
    def Key_usage_ratio(self):
        try:
            Key_usage_ratio = float(self.getVal('Key_blocks_used')) / (float(self.getVal('Key_blocks_used')) + float(self.getVal('Key_blocks_unused')))
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Key_usage_ratio
 
    def Key_write_hit_ratio(self):
        try:
            Key_write_hit_ratio = (1 - float(self.getVal('Key_writes')) / float(self.getVal('Key_write_requests'))) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Key_write_hit_ratio
 
    def Innodb_buffer_read_hit_ratio(self):
        try:
            Innodb_buffer_read_hit_ratio = (1 - float(self.getVal('Innodb_buffer_pool_reads')) / float(self.getVal('Innodb_buffer_pool_read_requests'))) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Innodb_buffer_read_hit_ratio
 
    def Innodb_buffer_usage(self):
        try:
            Innodb_buffer_usage = (1 - float(self.getVal('Innodb_buffer_pool_pages_free')) / float(self.getVal('Innodb_buffer_pool_pages_total'))) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Innodb_buffer_usage
 
    def Innodb_buffer_pool_dirty_ratio(self):
        try:
            Innodb_buffer_pool_dirty_ratio = (float(self.getVal('Innodb_buffer_pool_pages_dirty')) / float(self.getVal('Innodb_buffer_pool_pages_total'))) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Innodb_buffer_pool_dirty_ratio
 
class ErrorOut():
    def error_print(self):
        """输出错误信息"""
        print
        print 'Usage: ' + sys.argv[0] + ' ' + ' MySQL_Status_Key '
        print
        sys.exit(1)
 
class Main():
    def main(self):
        error = ErrorOut()
        if len(sys.argv) == 1:
            error.error_print()
        elif len(sys.argv) == 2:
            error.error_print()
        elif len(sys.argv) == 3:
            port = int(sys.argv[1])
            key = sys.argv[2]
            a = GetMysqlStatus()
            a.check(port)
            a.extract()
            if hasattr(a, key):
                print getattr(a, key)()
            else:
                print a.getVal(key)
 
if __name__ == "__main__":
     run = Main()
     run.main()

字典方式: (增加端口指定)

#!/usr/bin/env python
#coding=utf8
 
import sys
import os
import inspect
import MySQLdb
import MySQLdb.cursors
 
class GetMysqlStatus():
    def __init__(self):
        self.result = ''
        self.dict = {}
    def check(self, port):
        try:
            self.db = MySQLdb.connect(user="root", passwd="LVS@071103",
                                      host="127.0.0.1", port=port,
                                      cursorclass=MySQLdb.cursors.DictCursor)
        except Exception, e:
            raise Exception, 'Cannot interface with MySQL server, %s' % e
 
    def extract(self):
        try:
            c = self.db.cursor()
            c.execute("""show global status;""")
            self.result = c.fetchall()
            for i in self.result:
                self.dict[i['Variable_name']] = i['Value']
            return self.dict
            c.close()
            self.db.close()
        except Exception, e:
            print e
 
    def get_val(self, key):
        return self.dict[key]
 
    def TPS(self):
        TPS = int(self.dict['Com_commit']) + int(self.dict['Com_rollback'])
        return TPS
 
    def QPS(self):
        return int(self.dict['Com_insert']) + int(self.dict['Com_delete']) + int(self.dict['Com_select']) + int(self.dict['Com_update'])
 
    def Key_read_hit_ratio(self):
        try:
            Key_read_hit_ratio = (1 - float(self.dict['Key_reads'])  / float(self.dict['Key_read_requests'])) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Key_read_hit_ratio
 
    def Key_usage_ratio(self):
        try:
            Key_usage_ratio = float(self.dict['Key_blocks_used']) / (float(self.dict['Key_blocks_used']) + float(self.dict['Key_blocks_unused']))
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Key_usage_ratio
 
    def Key_write_hit_ratio(self):
        try:
            Key_write_hit_ratio = (1 - float(self.dict['Key_writes']) / float(self.dict['Key_write_requests'])) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Key_write_hit_ratio
 
    def Innodb_buffer_read_hit_ratio(self):
        try:
            Innodb_buffer_read_hit_ratio = (1 - float(self.dict['Innodb_buffer_pool_reads']) / float(self.dict['Innodb_buffer_pool_read_requests'])) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Innodb_buffer_read_hit_ratio
 
    def Innodb_buffer_usage(self):
        try:
            Innodb_buffer_usage = (1 - float(self.dict['Innodb_buffer_pool_pages_free']) / float(self.dict['Innodb_buffer_pool_pages_total'])) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Innodb_buffer_usage
 
    def Innodb_buffer_pool_dirty_ratio(self):
        try:
            Innodb_buffer_pool_dirty_ratio = (float(self.dict['Innodb_buffer_pool_pages_dirty']) / float(self.dict['Innodb_buffer_pool_pages_total'])) * 100
        except ZeroDivisionError, e:
            print "integer division or modulo by zero", e
        return Innodb_buffer_pool_dirty_ratio
 
class ErrorOut():
    def error_print(self):
        """输出错误信息"""
        print
        print 'Usage: ' + sys.argv[0] + ' ' + ' MySQL_Status_Key '
        print
        sys.exit(1)
 
class Main():
    def main(self):
        error = ErrorOut()
        if len(sys.argv) == 1:
            error.error_print()
        elif len(sys.argv) == 2:
            error.error_print()
        elif len(sys.argv) == 3:
            port = int(sys.argv[1])
            key = sys.argv[2]
            a = GetMysqlStatus()
            a.check(port)
            a.extract()
            if hasattr(a, key):
                print getattr(a, key)()
            else:
                print a.get_val(key)
 
if __name__ == "__main__":
     run = Main()
     run.main()

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