SkyWalking leverages Prometheus node-exporter to collect metrics data from the VMs and leverages OpenTelemetry Collector to transfer the metrics to OpenTelemetry receiver and into the Meter System. VM entity as a Service
in OAP and on the Layer: OS_LINUX
.
SkyWalking also provides InfluxDB Telegraf to receive VMs' metrics data by Telegraf receiver. The telegraf receiver plugin receiver, process and convert the metrics, then it send converted metrics to Meter System. VM entity as a Service
in OAP and on the Layer: OS_LINUX
.
For OpenTelemetry receiver:
For Telegraf receiver:
JSON
format metrics by HTTP
messages to Telegraf Receiver, then pushes converted metrics to the SkyWalking OAP Server Meter System.For OpenTelemetry receiver:
For Telegraf receiver:
telegraf.conf file
according to Telegraf office document.telegraf.conf file
specific rules according to Telegraf receiver document.Monitoring Panel | Unit | Metric Name | Description | Data Source |
---|---|---|---|---|
CPU Usage | % | meter_vm_cpu_total_percentage | The total percentage usage of the CPU core. If there are 2 cores, the maximum usage is 200%. | Prometheus node-exporter Telegraf input plugin |
Memory RAM Usage | MB | meter_vm_memory_used | The total RAM usage | Prometheus node-exporter Telegraf input plugin |
Memory Swap Usage | % | meter_vm_memory_swap_percentage | The percentage usage of swap memory | Prometheus node-exporter Telegraf input plugin |
CPU Average Used | % | meter_vm_cpu_average_used | The percentage usage of the CPU core in each mode | Prometheus node-exporter Telegraf input plugin |
CPU Load | meter_vm_cpu_load1 meter_vm_cpu_load5 meter_vm_cpu_load15 | The CPU 1m / 5m / 15m average load | Prometheus node-exporter Telegraf input plugin | |
Memory RAM | MB | meter_vm_memory_total meter_vm_memory_available meter_vm_memory_used | The RAM statistics, including Total / Available / Used | Prometheus node-exporter Telegraf input plugin |
Memory Swap | MB | meter_vm_memory_swap_free meter_vm_memory_swap_total | Swap memory statistics, including Free / Total | Prometheus node-exporter Telegraf input plugin |
File System Mountpoint Usage | % | meter_vm_filesystem_percentage | The percentage usage of the file system at each mount point | Prometheus node-exporter Telegraf input plugin |
Disk R/W | KB/s | meter_vm_disk_read,meter_vm_disk_written | The disk read and written | Prometheus node-exporter Telegraf input plugin |
Network Bandwidth Usage | KB/s | meter_vm_network_receive meter_vm_network_transmit | The network receive and transmit | Prometheus node-exporter Telegraf input plugin |
Network Status | meter_vm_tcp_curr_estab meter_vm_tcp_tw meter_vm_tcp_alloc meter_vm_sockets_used meter_vm_udp_inuse | The number of TCPs established / TCP time wait / TCPs allocated / sockets in use / UDPs in use | Prometheus node-exporter Telegraf input plugin | |
Filefd Allocated | meter_vm_filefd_allocated | The number of file descriptors allocated | Prometheus node-exporter |
You can customize your own metrics/expression/dashboard panel. The metrics definition and expression rules are found in /config/otel-rules/vm.yaml
and /config/telegraf-rules/vm.yaml
. The dashboard panel confirmations are found in /config/ui-initialized-templates/os_linux
.
For more details, see the blog article SkyWalking 8.4 provides infrastructure monitoring.