Node view

apache

Apache accesses Apache accesses
Apache processes Apache processes
Apache volume Apache volume

disk

Disk IOs per device Disk IOs per device
Disk latency per device Disk latency per device
Disk throughput per device Disk throughput per device
Disk usage in percent Disk usage in percent
Disk utilization per device Disk utilization per device
Filesystem usage (in bytes) Filesystem usage (in bytes)
Inode usage in percent Inode usage in percent
IO Service time IO Service time
IOstat IOstat
S.M.A.R.T values for drive sda S.M.A.R.T values for drive sda
S.M.A.R.T values for drive sdb S.M.A.R.T values for drive sdb
S.M.A.R.T values for drive sdc S.M.A.R.T values for drive sdc
S.M.A.R.T values for drive sdd S.M.A.R.T values for drive sdd

mod_tile

avg latency of tile retrival from disk avg latency of tile retrival from disk
freshness of served tiles freshness of served tiles
mod_tile HTTP response codes mod_tile HTTP response codes
mod_tile responses by zoom layer mod_tile responses by zoom layer

network

eth0 errors eth0 errors
eth0 traffic eth0 traffic
Firewall Throughput Firewall Throughput
HTTP loadtime of a page HTTP loadtime of a page

nginx

nginx cache hit ratio nginx cache hit ratio
nginx RAM usage nginx RAM usage
Nginx requests Nginx requests
NGINX status NGINX status

osm

OSM PostGIS Database Replag OSM PostGIS Database Replag
OSM Statistics OSM Statistics

postfix

Postfix bytes throughput Postfix bytes throughput
Postfix Mailqueue Postfix Mailqueue

postgresql

PostgreSQL bgwriter PostgreSQL bgwriter
PostgreSQL buffer cache PostgreSQL buffer cache
PostgreSQL checkpoints PostgreSQL checkpoints
PostgreSQL connections PostgreSQL connections
PostgreSQL connections per database PostgreSQL connections per database
PostgreSQL connections per user PostgreSQL connections per user
PostgreSQL database size PostgreSQL database size
PostgreSQL locks PostgreSQL locks
PostgreSQL query length PostgreSQL query length
PostgreSQL scan types (osm) PostgreSQL scan types (osm)
PostgreSQL transaction log PostgreSQL transaction log
PostgreSQL transactions PostgreSQL transactions
PostgreSQL tuple access (osm) PostgreSQL tuple access (osm)

processes

Fork rate Fork rate
Number of threads Number of threads
Processes Processes
Processes priority Processes priority
VMstat VMstat

renderd

Renderd queue length Renderd queue length
Renderd throughput Renderd throughput
Renderd throughput by zoom Renderd throughput by zoom
Renderd time spent by queue Renderd time spent by queue
Renderd time spent by zoom Renderd time spent by zoom

sensors

Fan speeds based on IPMI Fan speeds based on IPMI
Fans Fans
HDD temperature HDD temperature
Machine temperature based on IPMI Machine temperature based on IPMI
Temperatures Temperatures
Voltages Voltages

system

Available entropy Available entropy
CPU usage CPU usage
File table usage File table usage
Individual interrupts Individual interrupts
Inode table usage Inode table usage
Interrupts and context switches Interrupts and context switches
Load average Load average
Memory usage Memory usage
Swap in/out Swap in/out
Uptime Uptime