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-rw-r--r--src/main.c198
1 files changed, 85 insertions, 113 deletions
diff --git a/src/main.c b/src/main.c
index b14ebc0c1..798c7f0fc 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3,31 +3,37 @@
extern void *cgroups_main(void *ptr);
void netdata_cleanup_and_exit(int ret) {
- netdata_exit = 1;
+ // enabling this, is wrong
+ // because the threads will be cancelled while cleaning up
+ // netdata_exit = 1;
error_log_limit_unlimited();
+ info("EXIT: netdata prepares to exit with code %d...", ret);
- debug(D_EXIT, "Called: netdata_cleanup_and_exit()");
-
- // cleanup the database
+ // cleanup/save the database and exit
+ info("EXIT: cleaning up the database...");
rrdhost_cleanup_all();
+ if(!ret) {
+ // exit cleanly
+
+ // stop everything
+ info("EXIT: stopping master threads...");
+ cancel_main_threads();
+
+ // free the database
+ info("EXIT: freeing database memory...");
+ rrdhost_free_all();
+ }
+
// unlink the pid
if(pidfile[0]) {
+ info("EXIT: removing netdata PID file '%s'...", pidfile);
if(unlink(pidfile) != 0)
- error("Cannot unlink pidfile '%s'.", pidfile);
+ error("EXIT: cannot unlink pidfile '%s'.", pidfile);
}
-#ifdef NETDATA_INTERNAL_CHECKS
- // kill all childs
- //kill_childs();
-
- // free database
- sleep(2);
- rrdhost_free_all();
-#endif
-
- info("netdata exiting. Bye bye...");
+ info("EXIT: all done - netdata is now exiting - bye bye...");
exit(ret);
}
@@ -36,37 +42,38 @@ struct netdata_static_thread static_threads[] = {
#ifdef INTERNAL_PLUGIN_NFACCT
// nfacct requires root access
// so, we build it as an external plugin with setuid to root
- {"nfacct", CONFIG_SECTION_PLUGINS, "nfacct", 1, NULL, NULL, nfacct_main},
+ {"PLUGIN[nfacct]", CONFIG_SECTION_PLUGINS, "nfacct", 1, NULL, NULL, nfacct_main},
#endif
#ifdef NETDATA_INTERNAL_CHECKS
// debugging plugin
- {"check", CONFIG_SECTION_PLUGINS, "checks", 0, NULL, NULL, checks_main},
+ {"PLUGIN[check]", CONFIG_SECTION_PLUGINS, "checks", 0, NULL, NULL, checks_main},
#endif
#if defined(__FreeBSD__)
// FreeBSD internal plugins
- {"freebsd", CONFIG_SECTION_PLUGINS, "freebsd", 1, NULL, NULL, freebsd_main},
+ {"PLUGIN[freebsd]", CONFIG_SECTION_PLUGINS, "freebsd", 1, NULL, NULL, freebsd_main},
#elif defined(__APPLE__)
// macOS internal plugins
- {"macos", CONFIG_SECTION_PLUGINS, "macos", 1, NULL, NULL, macos_main},
+ {"PLUGIN[macos]", CONFIG_SECTION_PLUGINS, "macos", 1, NULL, NULL, macos_main},
#else
// linux internal plugins
- {"proc", CONFIG_SECTION_PLUGINS, "proc", 1, NULL, NULL, proc_main},
- {"diskspace", CONFIG_SECTION_PLUGINS, "diskspace", 1, NULL, NULL, proc_diskspace_main},
- {"cgroups", CONFIG_SECTION_PLUGINS, "cgroups", 1, NULL, NULL, cgroups_main},
- {"tc", CONFIG_SECTION_PLUGINS, "tc", 1, NULL, NULL, tc_main},
+ {"PLUGIN[proc]", CONFIG_SECTION_PLUGINS, "proc", 1, NULL, NULL, proc_main},
+ {"PLUGIN[diskspace]", CONFIG_SECTION_PLUGINS, "diskspace", 1, NULL, NULL, proc_diskspace_main},
+ {"PLUGIN[cgroup]", CONFIG_SECTION_PLUGINS, "cgroups", 1, NULL, NULL, cgroups_main},
+ {"PLUGIN[tc]", CONFIG_SECTION_PLUGINS, "tc", 1, NULL, NULL, tc_main},
#endif /* __FreeBSD__, __APPLE__*/
// common plugins for all systems
- {"idlejitter", CONFIG_SECTION_PLUGINS, "idlejitter", 1, NULL, NULL, cpuidlejitter_main},
- {"backends", NULL, NULL, 1, NULL, NULL, backends_main},
- {"health", NULL, NULL, 1, NULL, NULL, health_main},
- {"plugins.d", NULL, NULL, 1, NULL, NULL, pluginsd_main},
- {"web", NULL, NULL, 1, NULL, NULL, socket_listen_main_multi_threaded},
- {"web-single-threaded", NULL, NULL, 0, NULL, NULL, socket_listen_main_single_threaded},
- {"push-metrics", NULL, NULL, 0, NULL, NULL, rrdpush_sender_thread},
- {"statsd", NULL, NULL, 1, NULL, NULL, statsd_main},
+ {"PLUGIN[idlejitter]", CONFIG_SECTION_PLUGINS, "idlejitter", 1, NULL, NULL, cpuidlejitter_main},
+ {"BACKENDS", NULL, NULL, 1, NULL, NULL, backends_main},
+ {"HEALTH", NULL, NULL, 1, NULL, NULL, health_main},
+ {"PLUGINSD", NULL, NULL, 1, NULL, NULL, pluginsd_main},
+ {"WEB_SERVER[multi]", NULL, NULL, 1, NULL, NULL, socket_listen_main_multi_threaded},
+ {"WEB_SERVER[single]", NULL, NULL, 0, NULL, NULL, socket_listen_main_single_threaded},
+ {"WEB_SERVER[static1]", NULL, NULL, 0, NULL, NULL, socket_listen_main_static_threaded},
+ {"STREAM", NULL, NULL, 0, NULL, NULL, rrdpush_sender_thread},
+ {"STATSD", NULL, NULL, 1, NULL, NULL, statsd_main},
{NULL, NULL, NULL, 0, NULL, NULL, NULL}
};
@@ -76,6 +83,7 @@ void web_server_threading_selection(void) {
int multi_threaded = (web_server_mode == WEB_SERVER_MODE_MULTI_THREADED);
int single_threaded = (web_server_mode == WEB_SERVER_MODE_SINGLE_THREADED);
+ int static_threaded = (web_server_mode == WEB_SERVER_MODE_STATIC_THREADED);
int i;
for (i = 0; static_threads[i].name; i++) {
@@ -84,22 +92,26 @@ void web_server_threading_selection(void) {
if (static_threads[i].start_routine == socket_listen_main_single_threaded)
static_threads[i].enabled = single_threaded;
+
+ if (static_threads[i].start_routine == socket_listen_main_static_threaded)
+ static_threads[i].enabled = static_threaded;
}
}
void web_server_config_options(void) {
- web_client_timeout = (int) config_get_number(CONFIG_SECTION_WEB, "disconnect idle clients after seconds", DEFAULT_DISCONNECT_IDLE_WEB_CLIENTS_AFTER_SECONDS);
+ web_client_timeout = (int) config_get_number(CONFIG_SECTION_WEB, "disconnect idle clients after seconds", web_client_timeout);
+ web_client_first_request_timeout = (int) config_get_number(CONFIG_SECTION_WEB, "timeout for first request", web_client_first_request_timeout);
respect_web_browser_do_not_track_policy = config_get_boolean(CONFIG_SECTION_WEB, "respect do not track policy", respect_web_browser_do_not_track_policy);
web_x_frame_options = config_get(CONFIG_SECTION_WEB, "x-frame-options response header", "");
if(!*web_x_frame_options) web_x_frame_options = NULL;
- web_allow_connections_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow connections from", "localhost *"), SIMPLE_PATTERN_EXACT);
- web_allow_dashboard_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow dashboard from", "localhost *"), SIMPLE_PATTERN_EXACT);
- web_allow_badges_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow badges from", "*"), SIMPLE_PATTERN_EXACT);
- web_allow_registry_from = simple_pattern_create(config_get(CONFIG_SECTION_REGISTRY, "allow from", "*"), SIMPLE_PATTERN_EXACT);
- web_allow_streaming_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow streaming from", "*"), SIMPLE_PATTERN_EXACT);
- web_allow_netdataconf_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow netdata.conf from", "localhost fd* 10.* 192.168.* 172.16.* 172.17.* 172.18.* 172.19.* 172.20.* 172.21.* 172.22.* 172.23.* 172.24.* 172.25.* 172.26.* 172.27.* 172.28.* 172.29.* 172.30.* 172.31.*"), SIMPLE_PATTERN_EXACT);
+ web_allow_connections_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow connections from", "localhost *"), NULL, SIMPLE_PATTERN_EXACT);
+ web_allow_dashboard_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow dashboard from", "localhost *"), NULL, SIMPLE_PATTERN_EXACT);
+ web_allow_badges_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow badges from", "*"), NULL, SIMPLE_PATTERN_EXACT);
+ web_allow_registry_from = simple_pattern_create(config_get(CONFIG_SECTION_REGISTRY, "allow from", "*"), NULL, SIMPLE_PATTERN_EXACT);
+ web_allow_streaming_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow streaming from", "*"), NULL, SIMPLE_PATTERN_EXACT);
+ web_allow_netdataconf_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow netdata.conf from", "localhost fd* 10.* 192.168.* 172.16.* 172.17.* 172.18.* 172.19.* 172.20.* 172.21.* 172.22.* 172.23.* 172.24.* 172.25.* 172.26.* 172.27.* 172.28.* 172.29.* 172.30.* 172.31.*"), NULL, SIMPLE_PATTERN_EXACT);
#ifdef NETDATA_WITH_ZLIB
web_enable_gzip = config_get_boolean(CONFIG_SECTION_WEB, "enable gzip compression", web_enable_gzip);
@@ -177,51 +189,37 @@ int killpid(pid_t pid, int sig)
return ret;
}
-void kill_childs()
-{
+void cancel_main_threads() {
error_log_limit_unlimited();
- siginfo_t info;
-
- struct web_client *w;
- for(w = web_clients; w ; w = w->next) {
- info("Stopping web client %s", w->client_ip);
- pthread_cancel(w->thread);
- // it is detached
- // pthread_join(w->thread, NULL);
-
- WEB_CLIENT_IS_OBSOLETE(w);
- }
-
- int i;
+ int i, found = 0, max = 5 * USEC_PER_SEC, step = 100000;
for (i = 0; static_threads[i].name != NULL ; i++) {
- if(static_threads[i].enabled) {
- info("Stopping %s thread", static_threads[i].name);
- pthread_cancel(*static_threads[i].thread);
- // it is detached
- // pthread_join(*static_threads[i].thread, NULL);
-
- static_threads[i].enabled = 0;
+ if(static_threads[i].enabled == NETDATA_MAIN_THREAD_RUNNING) {
+ info("EXIT: Stopping master thread: %s", static_threads[i].name);
+ netdata_thread_cancel(*static_threads[i].thread);
+ found++;
}
}
- if(tc_child_pid) {
- info("Killing tc-qos-helper process %d", tc_child_pid);
- if(killpid(tc_child_pid, SIGTERM) != -1)
- waitid(P_PID, (id_t) tc_child_pid, &info, WEXITED);
-
- tc_child_pid = 0;
+ while(found && max > 0) {
+ max -= step;
+ info("Waiting %d threads to finish...", found);
+ sleep_usec(step);
+ found = 0;
+ for (i = 0; static_threads[i].name != NULL ; i++) {
+ if (static_threads[i].enabled != NETDATA_MAIN_THREAD_EXITED)
+ found++;
+ }
}
- // stop all running plugins
- pluginsd_stop_all_external_plugins();
-
- // if, for any reason there is any child exited
- // catch it here
- info("Cleaning up an other children");
- waitid(P_PID, 0, &info, WEXITED|WNOHANG);
-
- info("All threads/childs stopped.");
+ if(found) {
+ for (i = 0; static_threads[i].name != NULL ; i++) {
+ if (static_threads[i].enabled != NETDATA_MAIN_THREAD_EXITED)
+ error("Master thread %s takes too long to exit. Giving up...", static_threads[i].name);
+ }
+ }
+ else
+ info("All threads finished.");
}
struct option_def option_definitions[] = {
@@ -628,8 +626,7 @@ int main(int argc, char **argv) {
int i;
int config_loaded = 0;
int dont_fork = 0;
- size_t wanted_stacksize = 0, stacksize = 0;
- pthread_attr_t attr;
+ size_t default_stacksize;
// set the name for logging
program_name = "netdata";
@@ -774,7 +771,7 @@ int main(int argc, char **argv) {
size_t len = strlen(needle) + 1;
char wildcarded[len];
- SIMPLE_PATTERN *p = simple_pattern_create(heystack, SIMPLE_PATTERN_EXACT);
+ SIMPLE_PATTERN *p = simple_pattern_create(heystack, NULL, SIMPLE_PATTERN_EXACT);
int ret = simple_pattern_matches_extract(p, needle, wildcarded, len);
simple_pattern_free(p);
@@ -954,21 +951,8 @@ int main(int argc, char **argv) {
// setup the signals we want to use
signals_init();
-
- // --------------------------------------------------------------------
- // get the required stack size of the threads of netdata
-
- i = pthread_attr_init(&attr);
- if(i != 0)
- fatal("pthread_attr_init() failed with code %d.", i);
-
- i = pthread_attr_getstacksize(&attr, &stacksize);
- if(i != 0)
- fatal("pthread_attr_getstacksize() failed with code %d.", i);
- else
- debug(D_OPTIONS, "initial pthread stack size is %zu bytes", stacksize);
-
- wanted_stacksize = (size_t)config_get_number(CONFIG_SECTION_GLOBAL, "pthread stack size", (long)stacksize);
+ // setup threads configs
+ default_stacksize = netdata_threads_init();
// --------------------------------------------------------------------
@@ -1021,6 +1005,11 @@ int main(int argc, char **argv) {
}
#endif /* NETDATA_INTERNAL_CHECKS */
+ // get the max file limit
+ if(getrlimit(RLIMIT_NOFILE, &rlimit_nofile) != 0)
+ error("getrlimit(RLIMIT_NOFILE) failed");
+ else
+ info("resources control: allowed file descriptors: soft = %zu, max = %zu", rlimit_nofile.rlim_cur, rlimit_nofile.rlim_max);
// fork, switch user, create pid file, set process priority
if(become_daemon(dont_fork, user) == -1)
@@ -1033,18 +1022,7 @@ int main(int argc, char **argv) {
web_files_uid();
web_files_gid();
-
- // ------------------------------------------------------------------------
- // set default pthread stack size - after we have forked
-
- if(stacksize < wanted_stacksize) {
- i = pthread_attr_setstacksize(&attr, wanted_stacksize);
- if(i != 0)
- fatal("pthread_attr_setstacksize() to %zu bytes, failed with code %d.", wanted_stacksize, i);
- else
- debug(D_SYSTEM, "Successfully set pthread stacksize to %zu bytes", wanted_stacksize);
- }
-
+ netdata_threads_init_after_fork((size_t)config_get_number(CONFIG_SECTION_GLOBAL, "pthread stack size", (long)default_stacksize));
// ------------------------------------------------------------------------
// initialize rrd, registry, health, rrdpush, etc.
@@ -1067,15 +1045,9 @@ int main(int argc, char **argv) {
struct netdata_static_thread *st = &static_threads[i];
if(st->enabled) {
- st->thread = mallocz(sizeof(pthread_t));
-
+ st->thread = mallocz(sizeof(netdata_thread_t));
debug(D_SYSTEM, "Starting thread %s.", st->name);
-
- if(pthread_create(st->thread, &attr, st->start_routine, st))
- error("failed to create new thread for %s.", st->name);
-
- else if(pthread_detach(*st->thread))
- error("Cannot request detach of newly created %s thread.", st->name);
+ netdata_thread_create(st->thread, st->name, NETDATA_THREAD_OPTION_DEFAULT, st->start_routine, st);
}
else debug(D_SYSTEM, "Not starting thread %s.", st->name);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-28 20:35:39 +0000