Nagios “Memory-usage” shows “2 warnings and critical !” for CPU load and memory usage.
check_snmp_load.pl -H $HOSTADDRESS$ -C xxxxxxxx -2 -w 80 -c 90
check_snmp_mem.pl -H $HOSTADDRESS$ -C xxxxxxxx -2 -w 80 -c 90
Nagios monitors systems, networks and infrastructure. It also provides monitoring and alerting services for servers, switches, applications and services. Ideally, it can use SNMP protocol to monitor FireEye appliances for system monitoring, but there a few snmp events it does not handle well - such as CPU load and memory usage.
No action required. To get a better understanding of why this memory warning is not an issue, please see Information Guide: Linux and Memory as disk cache.