xtradb cluster集群zabbix监控
监控指标
官网参考地址：
https://www.percona.com/doc/percona-xtradb-cluster/5.6/manual/monitoring.html
1、报警参数
每个集群节点状态：
wsrep_cluster_status != Primary
wsrep_connected != ON
wsrep_ready != ON
复制冲突过高
流量控制信息
复制队列大小
2、长期图表收集参数
队列大小
流量控制
本节点进出交换数量
进出交换的字节数
复制冲突
Zabbix监控脚本
[root@yang-219 ~]# cat monit_xtradb.py
#!/usr/bin/python env
#coding=utf-8
#time: 2015-8-12
#function: monit xtradb cluster status
#author: yangr
import re,time,os
import commands
###variable 数据库及监控项变量定义区域
mysql_user='sstuser'
mysql_pass='s3cret'
mysql_host='localhost'
mysql_port='3306'
monit_message='''
wsrep_cluster_status
wsrep_connected
wsrep_ready
wsrep_local_cert_failures
wsrep_local_bf_aborts
wsrep_flow_control_sent
wsrep_flow_control_recv
wsrep_local_recv_queue
wsrep_local_recv_queue
wsrep_local_send_queue
wsrep_flow_control_sent
wsrep_flow_control_recv
wsrep_replicated
wsrep_received
wsrep_replicated_bytes
wsrep_received_bytes
wsrep_local_cert_failures
wsrep_local_bf_aborts
'''
monit_list=monit_message.split()
####zabbix 相关参数定义区域
zabbix_agent_file='/usr/local/zabbix/etc/zabbix_agentd.conf'
zabbix_server=commands.getstatusoutput('''grep '^ServerActive' %s|awk -F[=] '{print $2}' '''%zabbix_agent_file)[1].strip()
zabbix_hostname=commands.getstatusoutput('''grep '^Hostname' %s|awk -F[=] '{print $2}' '''%zabbix_agent_file)[1].strip()
zabbix_server_port=10051
timestamp = int(time.time())
tmp_file_path='/tmp/xtradb_cluster_status.txt'
zabbix_hostname='zabbix_server'
zabbix_server='zabbix_server'
####end variable变量定义结束
#获取全局状态信息
status,global_status=commands.getstatusoutput(''' mysql -u%s -p%s -h%s -P%s -e 'show global status like "wsrep%%";' '''%(mysql_user,mysql_pass,mysql_host,mysql_port))
#print ''' mysql -u%s -p%s -h%s -P%s -e 'show global status like "wsrep%%";' '''%(mysql_user,mysql_pass,mysql_host,mysql_port)
#print global_status
global_status=global_status.split('\n')
#print global_status
#清空文件
with open(tmp_file_path,'wb') as f:
f.write('')
#循环要监控的指标
for i in monit_list:
#循环状态列表，取出指标当前的值
for n in global_status:
if "%s\t"%i in n:
value=re.sub(r'.*\t','',n).strip()
#print i,'value:',value
#把值写入临时文件
with open(tmp_file_path,'ab') as f:
f.write('%s %s %s %s\n'%(zabbix_hostname,i,timestamp,value))
#把临时文件通过zabbix_sender命令发送到server端
send_data_cmd='/usr/local/zabbix/bin/zabbix_sender -vv -z %s -p %s -T -i %s'%(zabbix_server,zabbix_server_port,tmp_file_path)
print '/usr/local/zabbix/bin/zabbix_sender -vv -z %s -p %s -T -i %s'%(zabbix_server,zabbix_server_port,tmp_file_path)
#print send_data_cmd
os.popen(send_data_cmd)
脚本里monit_message对应的监控项，需要在zabbix服务器上添加对应的监控项，然后把这个脚本放到crontab里每分钟执行一次即可。
