今天重启zabbix-proxy时，发现zabbix-proxy所有的监控主机都失联了，看一下代理服务，两个多小时没有传递数据，zabbix-server监控的主机没有影响，数据正常，查看了一下找到了问题，分享出来，希望对大家有帮助。
1、重启zabbix-proxy时提示ok
$ sudo /etc/init.d/zabbix-proxy restart
[ ok ] Restarting zabbix-proxy (via systemctl): zabbix-proxy.service.
2、但是是无效重启，没有找到zabbix-proxy的服务端口
$ sudo netstat -lntup |grep zabbix
tcp 00 0.0.0.0:100500.0.0.0:* LISTEN 2329/zabbix_agentd
tcp6 00 :::10050:::* LISTEN 2329/zabbix_agentd
解决：
1、查看日志：
sudo tail zabbix_proxy.log
3195:20161219:143955.661 [Z3001] connection to database ‘zabbix_proxy‘ failed: [1045] Access denied for user ‘zabbix_proxy‘@‘localhost‘ (using password: YES)
3195:20161219:143955.661 database is down: reconnecting in 10 seconds
3195:20161219:144005.662 [Z3001] connection to database ‘zabbix_proxy‘ failed: [1045] Access denied for user ‘zabbix_proxy‘@‘localhost‘ (using password: YES)
3195:20161219:144005.663 database is down: reconnecting in 10 seconds
……
3195:20161219:144115.673 [Z3001] connection to database ‘zabbix_proxy‘ failed: [1045] Access denied for user ‘zabbix_proxy‘@‘localhost‘ (using password: YES)
3195:20161219:144115.673 database is down: reconnecting in 10 seconds
注：很明显连接到数据库的zabbix_proxy失败
2、登陆数据库，重新创建用户或密码
mysql> grant all on zabbix_proxy.* to [email protected] identified by ‘You_Passwd‘;
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
注：创建的好的mysql-proxy要和zabbix_proxy.conf一致
3、很简单吧，到这里都结束了，Proxy恢复，（没有恢复的重启服务）
详细zabbix-proxy（分布式监控）可以参考我另一篇分享：
