第一个：zabbix告警“Zabbix poller processes more than 75% busy”
编辑Zabbix Server的配置文件/usr/local/etc/zabbix_server.conf，找到配置StartPollers的段落：
### Option: StartPollers # Number of pre-forked instances of pollers. # # Mandatory: no # Range: 0-1000 # Default: # StartPollers=5
取消StartPollers=一行的注释或者直接在后面增加：
StartPollers=10
第二个：Zabbix 系统告警“More than 75% used in the configuration cache”
vi /usr/local/etc/zabbix_server.conf
CacheSize=2G HistoryCacheSize=2G