Add prometheus metrics for Central controllers (#1969)
* add header-only prometheus lib to ext * rename folder * Undo rename directory * prometheus simpleapi included on mac & linux * wip * wire up some controller stats * Get windows building with prometheus * bsd build flags for prometheus * Fix multiple network join from environment entrypoint.sh.release (#1961) * _bond_m guards _bond, not _paths_m (#1965) * Fix: warning: mutex '_aqm_m' is not held on every path through here [-Wthread-safety-analysis] (#1964) * Serve prom metrics from /metrics endpoint * Add prom metrics for Central controller specific things * reorganize metric initialization * testing out a labled gauge on Networks * increment error counter on throw * Consolidate metrics definitions Put all metric definitions into node/Metrics.hpp. Accessed as needed from there. * Revert "testing out a labled gauge on Networks" This reverts commit 499ed6d95e11452019cdf48e32ed4cd878c2705b. * still blows up but adding to the record for completeness right now * Fix runtime issues with metrics * Add metrics files to visual studio project * Missed an "extern" * add copyright headers to new files * Add metrics for sent/received bytes (total) * put /metrics endpoint behind auth * sendto returns int on Win32 --------- Co-authored-by: Leonardo Amaral <leleobhz@users.noreply.github.com> Co-authored-by: Brenton Bostick <bostick@gmail.com>
This commit is contained in:
parent
0b03ad9a21
commit
8e6e4ede6d
62 changed files with 4023 additions and 25 deletions
67
ext/prometheus-cpp-lite-1.0/examples/original_example.cpp
Normal file
67
ext/prometheus-cpp-lite-1.0/examples/original_example.cpp
Normal file
|
@ -0,0 +1,67 @@
|
|||
|
||||
#include <prometheus/registry.h>
|
||||
#include <prometheus/counter.h>
|
||||
#include <prometheus/text_serializer.h>
|
||||
|
||||
#include <array>
|
||||
#include <chrono>
|
||||
#include <cstdlib>
|
||||
#include <memory>
|
||||
#include <string>
|
||||
#include <thread>
|
||||
#include <iostream>
|
||||
|
||||
int main() {
|
||||
|
||||
using namespace prometheus;
|
||||
|
||||
// create a metrics registry
|
||||
// @note it's the users responsibility to keep the object alive
|
||||
auto registry = std::make_shared<Registry>();
|
||||
|
||||
// add a new counter family to the registry (families combine values with the
|
||||
// same name, but distinct label dimensions)
|
||||
//
|
||||
// @note please follow the metric-naming best-practices:
|
||||
// https://prometheus.io/docs/practices/naming/
|
||||
auto& packet_counter = BuildCounter()
|
||||
.Name("observed_packets_total")
|
||||
.Help("Number of observed packets")
|
||||
.Register(*registry);
|
||||
|
||||
// add and remember dimensional data, incrementing those is very cheap
|
||||
auto& tcp_rx_counter = packet_counter.Add({ {"protocol", "tcp"}, {"direction", "rx"} });
|
||||
auto& tcp_tx_counter = packet_counter.Add({ {"protocol", "tcp"}, {"direction", "tx"} });
|
||||
auto& udp_rx_counter = packet_counter.Add({ {"protocol", "udp"}, {"direction", "rx"} });
|
||||
auto& udp_tx_counter = packet_counter.Add({ {"protocol", "udp"}, {"direction", "tx"} });
|
||||
|
||||
// add a counter whose dimensional data is not known at compile time
|
||||
// nevertheless dimensional values should only occur in low cardinality:
|
||||
// https://prometheus.io/docs/practices/naming/#labels
|
||||
auto& http_requests_counter = BuildCounter()
|
||||
.Name("http_requests_total")
|
||||
.Help("Number of HTTP requests")
|
||||
.Register(*registry);
|
||||
|
||||
// ask the exposer to scrape the registry on incoming HTTP requests
|
||||
//exposer.RegisterCollectable(registry);
|
||||
|
||||
for ( ;; ) {
|
||||
std::this_thread::sleep_for(std::chrono::seconds(1));
|
||||
const auto random_value = std::rand();
|
||||
|
||||
if (random_value & 1) tcp_rx_counter.Increment();
|
||||
if (random_value & 2) tcp_tx_counter.Increment();
|
||||
if (random_value & 4) udp_rx_counter.Increment(10);
|
||||
if (random_value & 8) udp_tx_counter.Increment(10);
|
||||
|
||||
const std::array<std::string, 4> methods = { "GET", "PUT", "POST", "HEAD" };
|
||||
auto method = methods.at(static_cast<std::size_t>(random_value) % methods.size());
|
||||
// dynamically calling Family<T>.Add() works but is slow and should be avoided
|
||||
http_requests_counter.Add({ {"method", method} }).Increment();
|
||||
|
||||
TextSerializer text_serializer;
|
||||
text_serializer.Serialize(std::cout, registry->Collect());
|
||||
|
||||
}
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue