refactor tracker report functionality

CHANGES

@@ -1,3 +1,14 @@
+-- 2.1.3 (2024-03-09)
+BREAKING
+* API user endpoint output changed to JSON
+FEATURES
+* Peak number of simultaneous open connections is now tracked.
+* Maximum size of client http request is now tracked.
+* Number of errors (bad tracker secrets, bad client requests) is now tracked.
+* Show jemalloc stats in Gazelle and Grafana report endpoints.
+BUILD
+* refactor report functions to produce only report payload
+
 -- 2.1.2 (2024-02-17)
 FEATURES
 * show resource usage in Gazelle and Grafana report endpoints

README.md

@@ -69,6 +69,10 @@ docker run -v $(pwd)/ocelot.conf:/srv/ocelot.conf ocelot
 * `-c <path/to/ocelot.conf>` - Path to config file. If unspecified, the current working directory is used.
 * `-v` - Print queue status every time a flush is initiated.
 
+You can run a test ocelot daemon alongside a production daemon by specifying
+a separate configuration file, and setting `readonly = true`. This will
+prevent the database peer tables from being reset.
+
 ### Signals
 
 * `SIGHUP` - Reload config

ocelot.conf.dist

@@ -37,4 +37,6 @@ log_path            = /tmp/ocelot
 # the report path should be placed on a tmpfs partition in production
 report_path         = /tmp/ocelot
 
+# set to true if prevent peer data from being zeroed out on startup
+# useful to test a new version alongside an instance running in production
 readonly            = false

src/events.cpp

@@ -12,6 +12,8 @@
 #include "response.h"
 #include "events.h"
 
+std::mutex peak_open_mutex;
+
 // Define the connection mother (first half) and connection middlemen (second half)
 
 //---------- Connection mother - spawns middlemen and lets them deal with the connection
@@ -119,7 +121,13 @@ void connection_mother::handle_connect(ev::io &watcher, int events_flags) {
     // Spawn a new middleman
     if (stats.open_connections < max_middlemen) {
         stats.opened_connections++;
-        stats.open_connections++;
+        {
+            const std::lock_guard<std::mutex> lock(peak_open_mutex);
+            unsigned int current_open = stats.open_connections++;
+            if (stats.peak_connections < current_open) {
+                stats.peak_connections = current_open;
+            }
+        }
         new connection_middleman(listen_socket, work, this);
     }
 }

src/jemalloc_parse.cpp

@@ -126,12 +126,9 @@ small:                         247840          131452         0          129036
 large:                         290816             815         0             808         0             971         0             815         0            2351         0
 total:                         538656          132267         0          129844         0   
     */
-    if (!(in = strstr(in, "allocated         nmalloc   (#/sec)         ndalloc   (#/sec)"))) {
+    if (!(in = strstr(in, "(#/sec)\nsmall:"))) {
         return 30;
     }
-    if (!(in = strstr(in, "\nsmall:"))) {
-        return 31;
-    }
 
     if (!(in = parse_sz(in, " ", &out->small.allocated))) {
         return 40;

src/ocelot.cpp

@@ -26,10 +26,6 @@ static schedule *sched;
 
 struct stats_t stats;
 
-const char * version() {
-    return "2.1.3";
-}
-
 static void create_daemon() {
     pid_t pid;
 
@@ -113,7 +109,8 @@ int main(int argc, char **argv) {
             conf_arg = true;
             conf_file_path = argv[++i];
         } else if (strcmp(argv[i], "-V") == 0 || strcmp(argv[i], "--version") == 0) {
-            std::cout << "Ocelot version " << version() << ", compiled " << __DATE__ << ' ' <<  __TIME__ << std::endl;
+            // preprocessor concatenation
+            std::cout << "Ocelot version " OCELOT_VERSION ", compiled " __DATE__ " " __TIME__ << std::endl;
             return 0;
         } else {
             std::cout << "Usage: " << argv[0] << " [-v] [-c configfile] [--daemonize]" << std::endl;
@@ -147,8 +144,7 @@ int main(int argc, char **argv) {
     // If we don't set flush on info, the file log takes a long while to actually flush
     combined_logger->flush_on(spdlog::level::info);
     combined_logger->info(
-        std::string("Ocelot version ") + version()
-        + std::string(", compiled ") + __DATE__ + std::string(" ") +  __TIME__
+        "Ocelot version " OCELOT_VERSION ", compiled " __DATE__ " "  __TIME__
     );
     spdlog::register_logger(combined_logger);
 
@@ -171,17 +167,29 @@ int main(int argc, char **argv) {
     db->load_whitelist(whitelist);
 
     stats.open_connections = 0;
+    stats.peak_connections = 0;
     stats.opened_connections = 0;
     stats.connection_rate = 0;
     stats.requests = 0;
     stats.request_rate = 0;
     stats.leechers = 0;
     stats.seeders = 0;
+    stats.user_queue_size = 0;
+    stats.torrent_queue_size = 0;
+    stats.peer_queue_size = 0;
+    stats.snatch_queue_size = 0;
+    stats.token_queue_size = 0;
+    stats.max_client_request_len = 0;
     stats.announcements = 0;
     stats.succ_announcements = 0;
     stats.scrapes = 0;
     stats.bytes_read = 0;
     stats.bytes_written = 0;
+    stats.auth_error_secret = 0;
+    stats.auth_error_report = 0;
+    stats.auth_error_announce_key = 0;
+    stats.client_error = 0;
+    stats.http_error = 0;
     stats.start_time = time(NULL);
 
     // Create worker object, which handles announces and scrapes and all that jazz

src/ocelot.h

@@ -3,6 +3,12 @@
 
 // Copyright [2017-2024] Orpheus
 
+#define OCELOT_VERSION_MAJOR 2
+#define OCELOT_VERSION_MINOR 1
+#define OCELOT_VERSION_BUGFIX 3
+#define OCELOT_VERSION_NREV 0
+#define OCELOT_VERSION "2.1.3"
+
 #include <time.h>
 
 #include <string>
@@ -94,6 +100,7 @@ typedef std::unordered_map<std::string, std::string> params_type;
 
 struct stats_t {
     std::atomic<uint32_t> open_connections;
+    std::atomic<uint32_t> peak_connections;
     std::atomic<uint64_t> opened_connections;
     std::atomic<uint64_t> connection_rate;
     std::atomic<uint32_t> leechers;
@@ -103,13 +110,19 @@ struct stats_t {
     std::atomic<uint32_t> peer_queue_size;
     std::atomic<uint32_t> snatch_queue_size;
     std::atomic<uint32_t> token_queue_size;
+    std::atomic<uint32_t> max_client_request_len;
     std::atomic<uint64_t> requests;
     std::atomic<uint64_t> request_rate;
     std::atomic<uint64_t> announcements;
     std::atomic<uint64_t> succ_announcements;
     std::atomic<uint64_t> scrapes;
     std::atomic<uint64_t> bytes_read;
     std::atomic<uint64_t> bytes_written;
+    std::atomic<uint64_t> auth_error_secret;
+    std::atomic<uint64_t> auth_error_report;
+    std::atomic<uint64_t> auth_error_announce_key;
+    std::atomic<uint64_t> client_error;
+    std::atomic<uint64_t> http_error;
     time_t start_time;
 };
 extern struct stats_t stats;