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diff --git a/examples/stats-client/README.md b/examples/stats-client/README.md new file mode 100644 index 0000000..0a44a55 --- /dev/null +++ b/examples/stats-client/README.md @@ -0,0 +1,150 @@ +# Stats Client Example + +This example demonstrates how to retrieve statistics from VPP using [the new Stats API](https://github.com/FDio/vpp/blob/master/src/vpp/stats/stats.md). + +## Requirements + +The following requirements are required to run this example: + +- install VPP **18.10+** (VPP 19.04+ for statsclient) +- enable stats in VPP + +To enable stats add following section to you VPP config: + + ```sh + statseg { + default + per-node-counters on + } + ``` + > The [default socket](https://wiki.fd.io/view/VPP/Command-line_Arguments#.22statseg.22_parameters) is located at `/run/vpp/stats.sock`. + +## Running example + +First build the example: `go build git.fd.io/govpp.git/examples/stats-api`. + +### Higher-level access to stats + +Use commands following commands to retrieve stats that are aggregated and +processed into logical structures from [api package](../../api). + +- `system` to retrieve system statistics +- `nodes` to retrieve per node statistics +- `interfaces` to retrieve per interface statistics +- `errors` to retrieve error statistics (you can use patterns to filter the errors) + +#### System stats + +Following command will retrieve system stats. +``` +$ ./stats-api system +System stats: &{VectorRate:0 InputRate:0 LastUpdate:32560 LastStatsClear:0 Heartbeat:3255} +``` + +#### Node stats + +Following command will retrieve per node stats. +``` +$ ./stats-api nodes +Listing node stats.. +... + - {NodeIndex:554 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:555 Clocks:189609 Vectors:15 Calls:15 Suspends:0} + - {NodeIndex:556 Clocks:2281847 Vectors:0 Calls:0 Suspends:21} + - {NodeIndex:557 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:558 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:559 Clocks:7094 Vectors:0 Calls:1 Suspends:1} + - {NodeIndex:560 Clocks:88159323916601 Vectors:0 Calls:14066116 Suspends:0} + - {NodeIndex:561 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:562 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:563 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:564 Clocks:447894125 Vectors:0 Calls:0 Suspends:32395} + - {NodeIndex:565 Clocks:1099655497824612 Vectors:0 Calls:40 Suspends:117} + - {NodeIndex:566 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:567 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:568 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:569 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:570 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:571 Clocks:0 Vectors:0 Calls:0 Suspends:0} + - {NodeIndex:572 Clocks:0 Vectors:0 Calls:0 Suspends:0} +Listed 573 node counters +``` + +#### Interface stats + +Following command will retrieve per interface stats. +``` +$ ./stats-api interfaces +Listing interface stats.. + - {InterfaceIndex:0 RxPackets:0 RxBytes:0 RxErrors:0 TxPackets:0 TxBytes:0 TxErrors:0 RxUnicast:[0 0] RxMulticast:[0 0] RxBroadcast:[0 0] TxUnicastMiss:[0 0] TxMulticast:[0 0] TxBroadcast:[0 0] Drops:0 Punts:0 IP4:0 IP6:0 RxNoBuf:0 RxMiss:0} + - {InterfaceIndex:1 RxPackets:0 RxBytes:0 RxErrors:0 TxPackets:0 TxBytes:0 TxErrors:0 RxUnicast:[0 0] RxMulticast:[0 0] RxBroadcast:[0 0] TxUnicastMiss:[0 0] TxMulticast:[0 0] TxBroadcast:[0 0] Drops:5 Punts:0 IP4:0 IP6:0 RxNoBuf:0 RxMiss:0} + - {InterfaceIndex:2 RxPackets:0 RxBytes:0 RxErrors:0 TxPackets:0 TxBytes:0 TxErrors:0 RxUnicast:[0 0] RxMulticast:[0 0] RxBroadcast:[0 0] TxUnicastMiss:[0 0] TxMulticast:[0 0] TxBroadcast:[0 0] Drops:0 Punts:0 IP4:0 IP6:0 RxNoBuf:0 RxMiss:0} + - {InterfaceIndex:3 RxPackets:0 RxBytes:0 RxErrors:0 TxPackets:0 TxBytes:0 TxErrors:0 RxUnicast:[0 0] RxMulticast:[0 0] RxBroadcast:[0 0] TxUnicastMiss:[0 0] TxMulticast:[0 0] TxBroadcast:[0 0] Drops:0 Punts:0 IP4:0 IP6:0 RxNoBuf:0 RxMiss:0} +Listed 4 interface counters +``` + +#### Error stats + +Following command will retrieve error stats. +Use flag `-all` to include stats with zero values. +``` +$ ./stats-api errors ip +Listing error stats.. ip + - {ip4-input/ip4 spoofed local-address packet drops 15} +Listed 1 (825) error counters +``` + +### Low-level access to stats + +Use commands `ls` and `dump` to list and dump statistics in their raw format +from [adapter package](../../adapter). +Optionally, patterns can be used to filter the results. + +#### List stats + +Following command will list stats matching patterns `/sys/` and `/if/`. +``` +$ ./stats-api ls /sys/ /if/ +Listing stats.. /sys/ /if/ + - /sys/vector_rate + - /sys/input_rate + - /sys/last_update + - /sys/last_stats_clear + - /sys/heartbeat + - /sys/node/clocks + - /sys/node/vectors + - /sys/node/calls + - /sys/node/suspends + - /if/drops + - /if/punt + - /if/ip4 + - /if/ip6 + - /if/rx-no-buf + - /if/rx-miss + - /if/rx-error + - /if/tx-error + - /if/rx + - /if/rx-unicast + - /if/rx-multicast + - /if/rx-broadcast + - /if/tx + - /if/tx-unicast-miss + - /if/tx-multicast + - /if/tx-broadcast +Listed 25 stats +``` + +#### Dump stats + +Following command will dump stats with their types and actual values. +Use flag `-all` to include stats with zero values. +``` +$ ./stats-api dump +Dumping stats.. + - /sys/last_update ScalarIndex 10408 + - /sys/heartbeat ScalarIndex 1041 + - /err/ip4-icmp-error/unknown type ErrorIndex 5 + - /net/route/to CombinedCounterVector [[{Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:0 Bytes:0} {Packets:5 Bytes:420}]] + - /if/drops SimpleCounterVector [[0 5 5]] +Dumped 5 (2798) stats +``` |