HOME indicates system health status at runtime. This gives users of HOME a direct feedback if infrastructure components or HOME services face any issues, which may cause scheduled or immediate interaction.

HOME's health page shows a list of current issues. Issues are shown with a basic descriptor. If you hover your mouse cursor above this descriptor, you will be prompted with additional information and hints how to apply potential cure.

Table of Issues

Event	Class	Name	Help
device/presence	critical	Device	HOME is no longer receiving heartbeats from this device. This could be due to networking problems or the device being shutdown.
dhcp/pool	critical	Dhcp pool	This DHCP address pool contains very few unallocated address This may stop new devices or services from operating. Increase the pool size or add another pool
device/ethernet	critical	Ethernet	This Ethernet interface is down, check cabling. If the interface is not needed ensure DHCP is disabled and the IP address is 0.0.0.0
device/receiver/both	critical	Receivers	Both the Red and Blue IP receivers are reporting an error.
device/health/critical	critical	Hardware	Device hardware is reporting an error.
device/ptp	critical	PTP reference	Precision Time Protocol reference is missing.
switch/connection	critical	Switch	HOME cannot connect to this Network Switch. Check the credentials stored in HOME and network connectivity to the switch.
device/redundancy	debug	Redundant Groups	Redundant group configuration is inconsistent between HOME and its Devices.
service/cpu	debug	CPU load	Service's CPU use is greater than expected.
service/memory	debug	Memory load	Service's memory use is greater than expected
etcd/writes	debug	ETCD slow writes	ETCD is reporting slow disk writes. Check the server's CPU and Disk performance.
etcd/reads	debug	ETCD slow reads	ETCD is reporting slow disk reads. Check the server's CPU and Disk performance.
etcd/cpu	debug	ETCD slow comms	ETCD is reporting slow inter-server links. Check server's CPU and network performance.
nats/bytes-pending	debug	NATS pending data	NATS has significant data queued for this connection. Check remote server's performance.
nats/slow-consumer	debug	NATS slow consumers	NATS has messages pending for this connection. Check remote server's performance.
service/performance	debug	Service performance	The HOME service is overloaded.
service/auth/provider	debug	Authentication	The Authentication service cannot connect to this Back-end provider. Check the stored provider credentials and network routing.
service/auth/presence	debug	Authentication	No Authentication services available in HOME.
device/busy	warning	Restarting	This devices is rebooting as a result of a user request, for example a device configuration change.
device/receiver/red	warning	Red Receiver	The Red (primary) IP receiver is reporting an error.
device/receiver/blue	warning	Blue Receiver	The Blue (seccondary) IP receiver is reporting an error.
device/health/warning	warning	Hardware	Device hardware is reporting a warning.
etcd/replication	warning	ETCD instances	Fewer replicated ETCD servers available than specified in the HOME configuration.
nats/rtt	warning	Network latency	The Round Trip Time to this device or server is higher than expected. This is caused by network infrastructure delays. Expect this server or device to respond more slowly than usual
nats/replication	warning	NATS instances	Fewer replicated NATS servers available than specified in the HOME configuration.
service/replication	warning	Service instances	Fewer replicated HOME service instances available than specified in the HOME configuration.

How Classes are treated

HOME provides two destinations for Log Data. To understand, which data is kept where, please refer to this table.

Log Destination

Classes

Health Page in HOME

Critical

Warning

Application Log Storage

Critical

Warning

Information

Debug