zabbix_agentd [6539]: Is this process already running? Could not lock PID file [/var/run/zabbix/zabbix_agentd.pid]: [11] Resource temporarily unavailable.

查看zabbix_agentd.log日志：详情如下：

zabbix_agentd [6539]: Is this process already running? Could not lock PID file [/var/run/zabbix/zabbix_agentd.pid]: [11] Resource temporarily unavailable.

#cat  /etc/zabbix/zabbix_agentd.conf

PidFile=/var/run/zabbix/zabbix_agentd.pid                    #指定pid路径.

注释掉：PidFile=/var/run/zabbix/zabbix_agentd.pid

重新查看zabbix_agentd.log日志：详情如下：

error：zabbix_agentd [6839]: Is this process already running? Could not lock PID file [/tmp/zabbix_agentd.pid]: [11] Resource temporarily unavailable.

解决办法：

#ln  -s  /tmp/zabbix_agentd.pid   /var/run/zabbix/zabbix_agentd.pid