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netdata_netdata/daemon/main.c
vkalintiris 18800a4af5
Setup sentry-native SDK. () 
* Setup sentry-native SDK.

* Integrate Sentry into our CI

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* minor fix

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* Include sentry field to the build matrix

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* Update the bundle_sentry flag for all the distros

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* more changes

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* NON mergeable change

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* .

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* Enable fetch content.

* Abort in profile plugin

* Update plugin_profile.cc

* NON MERGABLE COMMIT, just for testing purposes

* NON MERGEABLE CHANGE, jsut for testing purposes

* Bump

* Use breakpad backend

* Multiple changes

- Make DSN variable that we read from the CI from the CI
- Upload debug symbols
- Fix packaging workflow; include new env vars & fix shecllchecks

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* Modify sentry dif command

* fix merge conf

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* Fix merge conflict

* Undo file prefix map.

* Fix typo

* Cleanup stuff.

* Add 256-checksum

* Renable ML for debs

* Finalize CI changes

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* Update rules

* final touches

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* merge the two if, no point to have them sep

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>

* Update contrib/debian/rules

Co-authored-by: Tasos Katsoulas <12612986+tkatsoulas@users.noreply.github.com>

* Update contrib/debian/rules

Co-authored-by: Tasos Katsoulas <12612986+tkatsoulas@users.noreply.github.com>

* Add license

* Enable sentry for debian 12.

* Update .github/workflows/packaging.yml

Co-authored-by: Austin S. Hemmelgarn <ahferroin7@gmail.com>

---------

Signed-off-by: Tasos Katsoulas <tasos@netdata.cloud>
Co-authored-by: Tasos Katsoulas <tasos@netdata.cloud>
Co-authored-by: Tasos Katsoulas <12612986+tkatsoulas@users.noreply.github.com>
Co-authored-by: Austin S. Hemmelgarn <ahferroin7@gmail.com>
2024-01-30 21:02:09 +02:00

2296 lines
94 KiB
C
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// SPDX-License-Identifier: GPL-3.0-or-later
#include "common.h"
#include "buildinfo.h"
#include "static_threads.h"
#include "database/engine/page_test.h"
#ifdef ENABLE_SENTRY
#include "sentry-native/sentry-native.h"
#endif
#if defined(ENV32BIT)
#warning COMPILING 32BIT NETDATA
#endif
bool unittest_running = false;
int netdata_zero_metrics_enabled;
int netdata_anonymous_statistics_enabled;
int libuv_worker_threads = MIN_LIBUV_WORKER_THREADS;
bool ieee754_doubles = false;
time_t netdata_start_time = 0;
struct netdata_static_thread *static_threads;
struct config netdata_config = {
.first_section = NULL,
.last_section = NULL,
.mutex = NETDATA_MUTEX_INITIALIZER,
.index = {
.avl_tree = {
.root = NULL,
.compar = appconfig_section_compare
},
.rwlock = AVL_LOCK_INITIALIZER
}
};
typedef struct service_thread {
pid_t tid;
SERVICE_THREAD_TYPE type;
SERVICE_TYPE services;
char name[NETDATA_THREAD_NAME_MAX + 1];
bool stop_immediately;
bool cancelled;
union {
netdata_thread_t netdata_thread;
uv_thread_t uv_thread;
};
force_quit_t force_quit_callback;
request_quit_t request_quit_callback;
void *data;
} SERVICE_THREAD;
struct service_globals {
SPINLOCK lock;
Pvoid_t pid_judy;
} service_globals = {
.pid_judy = NULL,
};
SERVICE_THREAD *service_register(SERVICE_THREAD_TYPE thread_type, request_quit_t request_quit_callback, force_quit_t force_quit_callback, void *data, bool update __maybe_unused) {
SERVICE_THREAD *sth = NULL;
pid_t tid = gettid();
spinlock_lock(&service_globals.lock);
Pvoid_t *PValue = JudyLIns(&service_globals.pid_judy, tid, PJE0);
if(!*PValue) {
sth = callocz(1, sizeof(SERVICE_THREAD));
sth->tid = tid;
sth->type = thread_type;
sth->request_quit_callback = request_quit_callback;
sth->force_quit_callback = force_quit_callback;
sth->data = data;
os_thread_get_current_name_np(sth->name);
*PValue = sth;
switch(thread_type) {
default:
case SERVICE_THREAD_TYPE_NETDATA:
sth->netdata_thread = netdata_thread_self();
break;
case SERVICE_THREAD_TYPE_EVENT_LOOP:
case SERVICE_THREAD_TYPE_LIBUV:
sth->uv_thread = uv_thread_self();
break;
}
}
else {
sth = *PValue;
}
spinlock_unlock(&service_globals.lock);
return sth;
}
void service_exits(void) {
pid_t tid = gettid();
spinlock_lock(&service_globals.lock);
Pvoid_t *PValue = JudyLGet(service_globals.pid_judy, tid, PJE0);
if(PValue) {
freez(*PValue);
JudyLDel(&service_globals.pid_judy, tid, PJE0);
}
spinlock_unlock(&service_globals.lock);
}
bool service_running(SERVICE_TYPE service) {
static __thread SERVICE_THREAD *sth = NULL;
if(unlikely(!sth))
sth = service_register(SERVICE_THREAD_TYPE_NETDATA, NULL, NULL, NULL, false);
sth->services |= service;
return !(sth->stop_immediately || netdata_exit);
}
void service_signal_exit(SERVICE_TYPE service) {
spinlock_lock(&service_globals.lock);
Pvoid_t *PValue;
Word_t tid = 0;
bool first = true;
while((PValue = JudyLFirstThenNext(service_globals.pid_judy, &tid, &first))) {
SERVICE_THREAD *sth = *PValue;
if((sth->services & service)) {
sth->stop_immediately = true;
if(sth->request_quit_callback) {
spinlock_unlock(&service_globals.lock);
sth->request_quit_callback(sth->data);
spinlock_lock(&service_globals.lock);
}
}
}
spinlock_unlock(&service_globals.lock);
}
static void service_to_buffer(BUFFER *wb, SERVICE_TYPE service) {
if(service & SERVICE_MAINTENANCE)
buffer_strcat(wb, "MAINTENANCE ");
if(service & SERVICE_COLLECTORS)
buffer_strcat(wb, "COLLECTORS ");
if(service & SERVICE_REPLICATION)
buffer_strcat(wb, "REPLICATION ");
if(service & ABILITY_DATA_QUERIES)
buffer_strcat(wb, "DATA_QUERIES ");
if(service & ABILITY_WEB_REQUESTS)
buffer_strcat(wb, "WEB_REQUESTS ");
if(service & SERVICE_WEB_SERVER)
buffer_strcat(wb, "WEB_SERVER ");
if(service & SERVICE_ACLK)
buffer_strcat(wb, "ACLK ");
if(service & SERVICE_HEALTH)
buffer_strcat(wb, "HEALTH ");
if(service & SERVICE_STREAMING)
buffer_strcat(wb, "STREAMING ");
if(service & ABILITY_STREAMING_CONNECTIONS)
buffer_strcat(wb, "STREAMING_CONNECTIONS ");
if(service & SERVICE_CONTEXT)
buffer_strcat(wb, "CONTEXT ");
if(service & SERVICE_ANALYTICS)
buffer_strcat(wb, "ANALYTICS ");
if(service & SERVICE_EXPORTERS)
buffer_strcat(wb, "EXPORTERS ");
if(service & SERVICE_HTTPD)
buffer_strcat(wb, "HTTPD ");
}
static bool service_wait_exit(SERVICE_TYPE service, usec_t timeout_ut) {
BUFFER *service_list = buffer_create(1024, NULL);
BUFFER *thread_list = buffer_create(1024, NULL);
usec_t started_ut = now_monotonic_usec(), ended_ut;
size_t running;
SERVICE_TYPE running_services = 0;
// cancel the threads
running = 0;
running_services = 0;
{
buffer_flush(thread_list);
spinlock_lock(&service_globals.lock);
Pvoid_t *PValue;
Word_t tid = 0;
bool first = true;
while((PValue = JudyLFirstThenNext(service_globals.pid_judy, &tid, &first))) {
SERVICE_THREAD *sth = *PValue;
if(sth->services & service && sth->tid != gettid() && !sth->cancelled) {
sth->cancelled = true;
switch(sth->type) {
default:
case SERVICE_THREAD_TYPE_NETDATA:
netdata_thread_cancel(sth->netdata_thread);
break;
case SERVICE_THREAD_TYPE_EVENT_LOOP:
case SERVICE_THREAD_TYPE_LIBUV:
break;
}
if(running)
buffer_strcat(thread_list, ", ");
buffer_sprintf(thread_list, "'%s' (%d)", sth->name, sth->tid);
running++;
running_services |= sth->services & service;
if(sth->force_quit_callback) {
spinlock_unlock(&service_globals.lock);
sth->force_quit_callback(sth->data);
spinlock_lock(&service_globals.lock);
continue;
}
}
}
spinlock_unlock(&service_globals.lock);
}
service_signal_exit(service);
// signal them to stop
size_t last_running = 0;
size_t stale_time_ut = 0;
usec_t sleep_ut = 50 * USEC_PER_MS;
size_t log_countdown_ut = sleep_ut;
do {
if(running != last_running)
stale_time_ut = 0;
last_running = running;
running = 0;
running_services = 0;
buffer_flush(thread_list);
spinlock_lock(&service_globals.lock);
Pvoid_t *PValue;
Word_t tid = 0;
bool first = true;
while((PValue = JudyLFirstThenNext(service_globals.pid_judy, &tid, &first))) {
SERVICE_THREAD *sth = *PValue;
if(sth->services & service && sth->tid != gettid()) {
if(running)
buffer_strcat(thread_list, ", ");
buffer_sprintf(thread_list, "'%s' (%d)", sth->name, sth->tid);
running_services |= sth->services & service;
running++;
}
}
spinlock_unlock(&service_globals.lock);
if(running) {
log_countdown_ut -= (log_countdown_ut >= sleep_ut) ? sleep_ut : log_countdown_ut;
if(log_countdown_ut == 0 || running != last_running) {
log_countdown_ut = 20 * sleep_ut;
buffer_flush(service_list);
service_to_buffer(service_list, running_services);
netdata_log_info("SERVICE CONTROL: waiting for the following %zu services [ %s] to exit: %s",
running, buffer_tostring(service_list),
running <= 10 ? buffer_tostring(thread_list) : "");
}
sleep_usec(sleep_ut);
stale_time_ut += sleep_ut;
}
ended_ut = now_monotonic_usec();
} while(running && (ended_ut - started_ut < timeout_ut || stale_time_ut < timeout_ut));
if(running) {
buffer_flush(service_list);
service_to_buffer(service_list, running_services);
netdata_log_info("SERVICE CONTROL: "
"the following %zu service(s) [ %s] take too long to exit: %s; "
"giving up on them...",
running, buffer_tostring(service_list),
buffer_tostring(thread_list));
}
buffer_free(thread_list);
buffer_free(service_list);
return (running == 0);
}
#define delta_shutdown_time(msg) \
do { \
usec_t now_ut = now_monotonic_usec(); \
if(prev_msg) \
netdata_log_info("NETDATA SHUTDOWN: in %7llu ms, %s%s - next: %s", (now_ut - last_ut) / USEC_PER_MS, (timeout)?"(TIMEOUT) ":"", prev_msg, msg); \
else \
netdata_log_info("NETDATA SHUTDOWN: next: %s", msg); \
last_ut = now_ut; \
prev_msg = msg; \
timeout = false; \
} while(0)
void web_client_cache_destroy(void);
void netdata_cleanup_and_exit(int ret, const char *action, const char *action_result, const char *action_data) {
usec_t started_ut = now_monotonic_usec();
usec_t last_ut = started_ut;
const char *prev_msg = NULL;
bool timeout = false;
nd_log_limits_unlimited();
netdata_log_info("NETDATA SHUTDOWN: initializing shutdown with code %d...", ret);
// send the stat from our caller
analytics_statistic_t statistic = { action, action_result, action_data };
analytics_statistic_send(&statistic);
// notify we are exiting
statistic = (analytics_statistic_t) {"EXIT", ret?"ERROR":"OK","-"};
analytics_statistic_send(&statistic);
delta_shutdown_time("create shutdown file");
char agent_crash_file[FILENAME_MAX + 1];
char agent_incomplete_shutdown_file[FILENAME_MAX + 1];
snprintfz(agent_crash_file, FILENAME_MAX, "%s/.agent_crash", netdata_configured_varlib_dir);
snprintfz(agent_incomplete_shutdown_file, FILENAME_MAX, "%s/.agent_incomplete_shutdown", netdata_configured_varlib_dir);
(void) rename(agent_crash_file, agent_incomplete_shutdown_file);
#ifdef ENABLE_DBENGINE
if(dbengine_enabled) {
delta_shutdown_time("dbengine exit mode");
for (size_t tier = 0; tier < storage_tiers; tier++)
rrdeng_exit_mode(multidb_ctx[tier]);
}
#endif
delta_shutdown_time("close webrtc connections");
webrtc_close_all_connections();
delta_shutdown_time("disable maintenance, new queries, new web requests, new streaming connections and aclk");
service_signal_exit(
SERVICE_MAINTENANCE
| ABILITY_DATA_QUERIES
| ABILITY_WEB_REQUESTS
| ABILITY_STREAMING_CONNECTIONS
| SERVICE_ACLK
| SERVICE_ACLKSYNC
);
delta_shutdown_time("stop maintenance thread");
timeout = !service_wait_exit(
SERVICE_MAINTENANCE
, 3 * USEC_PER_SEC);
delta_shutdown_time("stop replication, exporters, health and web servers threads");
timeout = !service_wait_exit(
SERVICE_EXPORTERS
| SERVICE_HEALTH
| SERVICE_WEB_SERVER
| SERVICE_HTTPD
, 3 * USEC_PER_SEC);
delta_shutdown_time("stop collectors and streaming threads");
timeout = !service_wait_exit(
SERVICE_COLLECTORS
| SERVICE_STREAMING
, 3 * USEC_PER_SEC);
delta_shutdown_time("stop replication threads");
timeout = !service_wait_exit(
SERVICE_REPLICATION // replication has to be stopped after STREAMING, because it cleans up ARAL
, 3 * USEC_PER_SEC);
delta_shutdown_time("prepare metasync shutdown");
metadata_sync_shutdown_prepare();
delta_shutdown_time("disable ML detection and training threads");
ml_stop_threads();
ml_fini();
delta_shutdown_time("stop context thread");
timeout = !service_wait_exit(
SERVICE_CONTEXT
, 3 * USEC_PER_SEC);
delta_shutdown_time("clear web client cache");
web_client_cache_destroy();
delta_shutdown_time("stop aclk threads");
timeout = !service_wait_exit(
SERVICE_ACLK
, 3 * USEC_PER_SEC);
delta_shutdown_time("stop all remaining worker threads");
timeout = !service_wait_exit(~0, 10 * USEC_PER_SEC);
delta_shutdown_time("cancel main threads");
cancel_main_threads();
if(!ret) {
// exit cleanly
#ifdef ENABLE_DBENGINE
if(dbengine_enabled) {
delta_shutdown_time("flush dbengine tiers");
for (size_t tier = 0; tier < storage_tiers; tier++)
rrdeng_prepare_exit(multidb_ctx[tier]);
for (size_t tier = 0; tier < storage_tiers; tier++) {
if (!multidb_ctx[tier])
continue;
completion_wait_for(&multidb_ctx[tier]->quiesce.completion);
completion_destroy(&multidb_ctx[tier]->quiesce.completion);
}
}
#endif
// free the database
delta_shutdown_time("stop collection for all hosts");
// rrdhost_free_all();
rrd_finalize_collection_for_all_hosts();
delta_shutdown_time("stop metasync threads");
metadata_sync_shutdown();
#ifdef ENABLE_DBENGINE
if(dbengine_enabled) {
delta_shutdown_time("wait for dbengine collectors to finish");
size_t running = 1;
size_t count = 10;
while(running && count) {
running = 0;
for (size_t tier = 0; tier < storage_tiers; tier++)
running += rrdeng_collectors_running(multidb_ctx[tier]);
if(running) {
nd_log_limit_static_thread_var(erl, 1, 100 * USEC_PER_MS);
nd_log_limit(&erl, NDLS_DAEMON, NDLP_NOTICE,
"waiting for %zu collectors to finish", running);
// sleep_usec(100 * USEC_PER_MS);
cleanup_destroyed_dictionaries();
}
count--;
}
delta_shutdown_time("wait for dbengine main cache to finish flushing");
while (pgc_hot_and_dirty_entries(main_cache)) {
pgc_flush_all_hot_and_dirty_pages(main_cache, PGC_SECTION_ALL);
sleep_usec(100 * USEC_PER_MS);
}
delta_shutdown_time("stop dbengine tiers");
for (size_t tier = 0; tier < storage_tiers; tier++)
rrdeng_exit(multidb_ctx[tier]);
rrdeng_enq_cmd(NULL, RRDENG_OPCODE_SHUTDOWN_EVLOOP, NULL, NULL, STORAGE_PRIORITY_BEST_EFFORT, NULL, NULL);
}
#endif
}
delta_shutdown_time("close SQL context db");
sql_close_context_database();
delta_shutdown_time("closed SQL main db");
sql_close_database();
// unlink the pid
if(pidfile[0]) {
delta_shutdown_time("remove pid file");
if(unlink(pidfile) != 0)
netdata_log_error("EXIT: cannot unlink pidfile '%s'.", pidfile);
}
#ifdef ENABLE_HTTPS
delta_shutdown_time("free openssl structures");
netdata_ssl_cleanup();
#endif
delta_shutdown_time("remove incomplete shutdown file");
(void) unlink(agent_incomplete_shutdown_file);
delta_shutdown_time("exit");
#ifdef ENABLE_SENTRY
sentry_native_fini();
#endif
usec_t ended_ut = now_monotonic_usec();
netdata_log_info("NETDATA SHUTDOWN: completed in %llu ms - netdata is now exiting - bye bye...", (ended_ut - started_ut) / USEC_PER_MS);
exit(ret);
}
void web_server_threading_selection(void) {
web_server_mode = web_server_mode_id(config_get(CONFIG_SECTION_WEB, "mode", web_server_mode_name(web_server_mode)));
int static_threaded = (web_server_mode == WEB_SERVER_MODE_STATIC_THREADED);
int i;
for (i = 0; static_threads[i].name; i++) {
if (static_threads[i].start_routine == socket_listen_main_static_threaded)
static_threads[i].enabled = static_threaded;
}
}
int make_dns_decision(const char *section_name, const char *config_name, const char *default_value, SIMPLE_PATTERN *p)
{
char *value = config_get(section_name,config_name,default_value);
if(!strcmp("yes",value))
return 1;
if(!strcmp("no",value))
return 0;
if(strcmp("heuristic",value))
netdata_log_error("Invalid configuration option '%s' for '%s'/'%s'. Valid options are 'yes', 'no' and 'heuristic'. Proceeding with 'heuristic'",
value, section_name, config_name);
return simple_pattern_is_potential_name(p);
}
void web_server_config_options(void)
{
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);
web_client_streaming_rate_t =
config_get_number(CONFIG_SECTION_WEB, "accept a streaming request every seconds", web_client_streaming_rate_t);
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 *"),
NULL, SIMPLE_PATTERN_EXACT, true);
web_allow_connections_dns =
make_dns_decision(CONFIG_SECTION_WEB, "allow connections by dns", "heuristic", web_allow_connections_from);
web_allow_dashboard_from =
simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow dashboard from", "localhost *"),
NULL, SIMPLE_PATTERN_EXACT, true);
web_allow_dashboard_dns =
make_dns_decision(CONFIG_SECTION_WEB, "allow dashboard by dns", "heuristic", web_allow_dashboard_from);
web_allow_badges_from =
simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow badges from", "*"), NULL, SIMPLE_PATTERN_EXACT,
true);
web_allow_badges_dns =
make_dns_decision(CONFIG_SECTION_WEB, "allow badges by dns", "heuristic", web_allow_badges_from);
web_allow_registry_from =
simple_pattern_create(config_get(CONFIG_SECTION_REGISTRY, "allow from", "*"), NULL, SIMPLE_PATTERN_EXACT,
true);
web_allow_registry_dns = make_dns_decision(CONFIG_SECTION_REGISTRY, "allow by dns", "heuristic",
web_allow_registry_from);
web_allow_streaming_from = simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow streaming from", "*"),
NULL, SIMPLE_PATTERN_EXACT, true);
web_allow_streaming_dns = make_dns_decision(CONFIG_SECTION_WEB, "allow streaming by dns", "heuristic",
web_allow_streaming_from);
// Note the default is not heuristic, the wildcards could match DNS but the intent is ip-addresses.
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.* UNKNOWN"), NULL, SIMPLE_PATTERN_EXACT,
true);
web_allow_netdataconf_dns =
make_dns_decision(CONFIG_SECTION_WEB, "allow netdata.conf by dns", "no", web_allow_netdataconf_from);
web_allow_mgmt_from =
simple_pattern_create(config_get(CONFIG_SECTION_WEB, "allow management from", "localhost"),
NULL, SIMPLE_PATTERN_EXACT, true);
web_allow_mgmt_dns =
make_dns_decision(CONFIG_SECTION_WEB, "allow management by dns","heuristic",web_allow_mgmt_from);
web_enable_gzip = config_get_boolean(CONFIG_SECTION_WEB, "enable gzip compression", web_enable_gzip);
char *s = config_get(CONFIG_SECTION_WEB, "gzip compression strategy", "default");
if(!strcmp(s, "default"))
web_gzip_strategy = Z_DEFAULT_STRATEGY;
else if(!strcmp(s, "filtered"))
web_gzip_strategy = Z_FILTERED;
else if(!strcmp(s, "huffman only"))
web_gzip_strategy = Z_HUFFMAN_ONLY;
else if(!strcmp(s, "rle"))
web_gzip_strategy = Z_RLE;
else if(!strcmp(s, "fixed"))
web_gzip_strategy = Z_FIXED;
else {
netdata_log_error("Invalid compression strategy '%s'. Valid strategies are 'default', 'filtered', 'huffman only', 'rle' and 'fixed'. Proceeding with 'default'.", s);
web_gzip_strategy = Z_DEFAULT_STRATEGY;
}
web_gzip_level = (int)config_get_number(CONFIG_SECTION_WEB, "gzip compression level", 3);
if(web_gzip_level < 1) {
netdata_log_error("Invalid compression level %d. Valid levels are 1 (fastest) to 9 (best ratio). Proceeding with level 1 (fastest compression).", web_gzip_level);
web_gzip_level = 1;
}
else if(web_gzip_level > 9) {
netdata_log_error("Invalid compression level %d. Valid levels are 1 (fastest) to 9 (best ratio). Proceeding with level 9 (best compression).", web_gzip_level);
web_gzip_level = 9;
}
}
// killpid kills pid with SIGTERM.
int killpid(pid_t pid) {
int ret;
netdata_log_debug(D_EXIT, "Request to kill pid %d", pid);
int signal = SIGTERM;
//#ifdef NETDATA_INTERNAL_CHECKS
// if(service_running(SERVICE_COLLECTORS))
// signal = SIGABRT;
//#endif
errno = 0;
ret = kill(pid, signal);
if (ret == -1) {
switch(errno) {
case ESRCH:
// We wanted the process to exit so just let the caller handle.
return ret;
case EPERM:
netdata_log_error("Cannot kill pid %d, but I do not have enough permissions.", pid);
break;
default:
netdata_log_error("Cannot kill pid %d, but I received an error.", pid);
break;
}
}
return ret;
}
static void set_nofile_limit(struct rlimit *rl) {
// get the num files allowed
if(getrlimit(RLIMIT_NOFILE, rl) != 0) {
netdata_log_error("getrlimit(RLIMIT_NOFILE) failed");
return;
}
netdata_log_info("resources control: allowed file descriptors: soft = %zu, max = %zu",
(size_t) rl->rlim_cur, (size_t) rl->rlim_max);
// make the soft/hard limits equal
rl->rlim_cur = rl->rlim_max;
if (setrlimit(RLIMIT_NOFILE, rl) != 0) {
netdata_log_error("setrlimit(RLIMIT_NOFILE, { %zu, %zu }) failed", (size_t)rl->rlim_cur, (size_t)rl->rlim_max);
}
// sanity check to make sure we have enough file descriptors available to open
if (getrlimit(RLIMIT_NOFILE, rl) != 0) {
netdata_log_error("getrlimit(RLIMIT_NOFILE) failed");
return;
}
if (rl->rlim_cur < 1024)
netdata_log_error("Number of open file descriptors allowed for this process is too low (RLIMIT_NOFILE=%zu)", (size_t)rl->rlim_cur);
}
void cancel_main_threads() {
nd_log_limits_unlimited();
int i, found = 0;
usec_t max = 5 * USEC_PER_SEC, step = 100000;
for (i = 0; static_threads[i].name != NULL ; i++) {
if (static_threads[i].enabled == NETDATA_MAIN_THREAD_RUNNING) {
if (static_threads[i].thread) {
netdata_log_info("EXIT: Stopping main thread: %s", static_threads[i].name);
netdata_thread_cancel(*static_threads[i].thread);
} else {
netdata_log_info("EXIT: No thread running (marking as EXITED): %s", static_threads[i].name);
static_threads[i].enabled = NETDATA_MAIN_THREAD_EXITED;
}
found++;
}
}
netdata_exit = 1;
while(found && max > 0) {
max -= step;
netdata_log_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++;
}
}
if(found) {
for (i = 0; static_threads[i].name != NULL ; i++) {
if (static_threads[i].enabled != NETDATA_MAIN_THREAD_EXITED)
netdata_log_error("Main thread %s takes too long to exit. Giving up...", static_threads[i].name);
}
}
else
netdata_log_info("All threads finished.");
for (i = 0; static_threads[i].name != NULL ; i++)
freez(static_threads[i].thread);
freez(static_threads);
}
struct option_def option_definitions[] = {
// opt description arg name default value
{ 'c', "Configuration file to load.", "filename", CONFIG_DIR "/" CONFIG_FILENAME},
{ 'D', "Do not fork. Run in the foreground.", NULL, "run in the background"},
{ 'd', "Fork. Run in the background.", NULL, "run in the background"},
{ 'h', "Display this help message.", NULL, NULL},
{ 'P', "File to save a pid while running.", "filename", "do not save pid to a file"},
{ 'i', "The IP address to listen to.", "IP", "all IP addresses IPv4 and IPv6"},
{ 'p', "API/Web port to use.", "port", "19999"},
{ 's', "Prefix for /proc and /sys (for containers).", "path", "no prefix"},
{ 't', "The internal clock of netdata.", "seconds", "1"},
{ 'u', "Run as user.", "username", "netdata"},
{ 'v', "Print netdata version and exit.", NULL, NULL},
{ 'V', "Print netdata version and exit.", NULL, NULL},
{ 'W', "See Advanced options below.", "options", NULL},
};
int help(int exitcode) {
FILE *stream;
if(exitcode == 0)
stream = stdout;
else
stream = stderr;
int num_opts = sizeof(option_definitions) / sizeof(struct option_def);
int i;
int max_len_arg = 0;
// Compute maximum argument length
for( i = 0; i < num_opts; i++ ) {
if(option_definitions[i].arg_name) {
int len_arg = (int)strlen(option_definitions[i].arg_name);
if(len_arg > max_len_arg) max_len_arg = len_arg;
}
}
if(max_len_arg > 30) max_len_arg = 30;
if(max_len_arg < 20) max_len_arg = 20;
fprintf(stream, "%s", "\n"
" ^\n"
" |.-. .-. .-. .-. . netdata \n"
" | '-' '-' '-' '-' real-time performance monitoring, done right! \n"
" +----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+--->\n"
"\n"
" Copyright (C) 2016-2023, Netdata, Inc. <info@netdata.cloud>\n"
" Released under GNU General Public License v3 or later.\n"
" All rights reserved.\n"
"\n"
" Home Page : https://netdata.cloud\n"
" Source Code: https://github.com/netdata/netdata\n"
" Docs : https://learn.netdata.cloud\n"
" Support : https://github.com/netdata/netdata/issues\n"
" License : https://github.com/netdata/netdata/blob/master/LICENSE.md\n"
"\n"
" Twitter : https://twitter.com/netdatahq\n"
" LinkedIn : https://linkedin.com/company/netdata-cloud/\n"
" Facebook : https://facebook.com/linuxnetdata/\n"
"\n"
"\n"
);
fprintf(stream, " SYNOPSIS: netdata [options]\n");
fprintf(stream, "\n");
fprintf(stream, " Options:\n\n");
// Output options description.
for( i = 0; i < num_opts; i++ ) {
fprintf(stream, " -%c %-*s %s", option_definitions[i].val, max_len_arg, option_definitions[i].arg_name ? option_definitions[i].arg_name : "", option_definitions[i].description);
if(option_definitions[i].default_value) {
fprintf(stream, "\n %c %-*s Default: %s\n", ' ', max_len_arg, "", option_definitions[i].default_value);
} else {
fprintf(stream, "\n");
}
fprintf(stream, "\n");
}
fprintf(stream, "\n Advanced options:\n\n"
" -W stacksize=N Set the stacksize (in bytes).\n\n"
" -W debug_flags=N Set runtime tracing to debug.log.\n\n"
" -W unittest Run internal unittests and exit.\n\n"
" -W sqlite-meta-recover Run recovery on the metadata database and exit.\n\n"
" -W sqlite-compact Reclaim metadata database unused space and exit.\n\n"
" -W sqlite-analyze Run update statistics and exit.\n\n"
#ifdef ENABLE_DBENGINE
" -W createdataset=N Create a DB engine dataset of N seconds and exit.\n\n"
" -W stresstest=A,B,C,D,E,F,G\n"
" Run a DB engine stress test for A seconds,\n"
" with B writers and C readers, with a ramp up\n"
" time of D seconds for writers, a page cache\n"
" size of E MiB, an optional disk space limit\n"
" of F MiB, G libuv workers (default 16) and exit.\n\n"
#endif
" -W set section option value\n"
" set netdata.conf option from the command line.\n\n"
" -W buildinfo Print the version, the configure options,\n"
" a list of optional features, and whether they\n"
" are enabled or not.\n\n"
" -W buildinfojson Print the version, the configure options,\n"
" a list of optional features, and whether they\n"
" are enabled or not, in JSON format.\n\n"
" -W simple-pattern pattern string\n"
" Check if string matches pattern and exit.\n\n"
" -W \"claim -token=TOKEN -rooms=ROOM1,ROOM2\"\n"
" Claim the agent to the workspace rooms pointed to by TOKEN and ROOM*.\n\n"
);
fprintf(stream, "\n Signals netdata handles:\n\n"
" - HUP Close and reopen log files.\n"
" - USR1 Save internal DB to disk.\n"
" - USR2 Reload health configuration.\n"
"\n"
);
fflush(stream);
return exitcode;
}
#ifdef ENABLE_HTTPS
static void security_init(){
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/ssl/key.pem",netdata_configured_user_config_dir);
netdata_ssl_security_key = config_get(CONFIG_SECTION_WEB, "ssl key", filename);
snprintfz(filename, FILENAME_MAX, "%s/ssl/cert.pem",netdata_configured_user_config_dir);
netdata_ssl_security_cert = config_get(CONFIG_SECTION_WEB, "ssl certificate", filename);
tls_version = config_get(CONFIG_SECTION_WEB, "tls version", "1.3");
tls_ciphers = config_get(CONFIG_SECTION_WEB, "tls ciphers", "none");
netdata_ssl_initialize_openssl();
}
#endif
static void log_init(void) {
nd_log_set_facility(config_get(CONFIG_SECTION_LOGS, "facility", "daemon"));
time_t period = ND_LOG_DEFAULT_THROTTLE_PERIOD;
size_t logs = ND_LOG_DEFAULT_THROTTLE_LOGS;
period = config_get_number(CONFIG_SECTION_LOGS, "logs flood protection period", period);
logs = (unsigned long)config_get_number(CONFIG_SECTION_LOGS, "logs to trigger flood protection", (long long int)logs);
nd_log_set_flood_protection(logs, period);
nd_log_set_priority_level(config_get(CONFIG_SECTION_LOGS, "level", NDLP_INFO_STR));
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/debug.log", netdata_configured_log_dir);
nd_log_set_user_settings(NDLS_DEBUG, config_get(CONFIG_SECTION_LOGS, "debug", filename));
bool with_journal = is_stderr_connected_to_journal() /* || nd_log_journal_socket_available() */;
if(with_journal)
snprintfz(filename, FILENAME_MAX, "journal");
else
snprintfz(filename, FILENAME_MAX, "%s/daemon.log", netdata_configured_log_dir);
nd_log_set_user_settings(NDLS_DAEMON, config_get(CONFIG_SECTION_LOGS, "daemon", filename));
if(with_journal)
snprintfz(filename, FILENAME_MAX, "journal");
else
snprintfz(filename, FILENAME_MAX, "%s/collector.log", netdata_configured_log_dir);
nd_log_set_user_settings(NDLS_COLLECTORS, config_get(CONFIG_SECTION_LOGS, "collector", filename));
snprintfz(filename, FILENAME_MAX, "%s/access.log", netdata_configured_log_dir);
nd_log_set_user_settings(NDLS_ACCESS, config_get(CONFIG_SECTION_LOGS, "access", filename));
if(with_journal)
snprintfz(filename, FILENAME_MAX, "journal");
else
snprintfz(filename, FILENAME_MAX, "%s/health.log", netdata_configured_log_dir);
nd_log_set_user_settings(NDLS_HEALTH, config_get(CONFIG_SECTION_LOGS, "health", filename));
#ifdef ENABLE_ACLK
aclklog_enabled = config_get_boolean(CONFIG_SECTION_CLOUD, "conversation log", CONFIG_BOOLEAN_NO);
if (aclklog_enabled) {
snprintfz(filename, FILENAME_MAX, "%s/aclk.log", netdata_configured_log_dir);
nd_log_set_user_settings(NDLS_ACLK, config_get(CONFIG_SECTION_CLOUD, "conversation log file", filename));
}
#endif
}
char *initialize_lock_directory_path(char *prefix)
{
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/lock", prefix);
return config_get(CONFIG_SECTION_DIRECTORIES, "lock", filename);
}
static void backwards_compatible_config() {
// move [global] options to the [web] section
config_move(CONFIG_SECTION_GLOBAL, "http port listen backlog",
CONFIG_SECTION_WEB, "listen backlog");
config_move(CONFIG_SECTION_GLOBAL, "bind socket to IP",
CONFIG_SECTION_WEB, "bind to");
config_move(CONFIG_SECTION_GLOBAL, "bind to",
CONFIG_SECTION_WEB, "bind to");
config_move(CONFIG_SECTION_GLOBAL, "port",
CONFIG_SECTION_WEB, "default port");
config_move(CONFIG_SECTION_GLOBAL, "default port",
CONFIG_SECTION_WEB, "default port");
config_move(CONFIG_SECTION_GLOBAL, "disconnect idle web clients after seconds",
CONFIG_SECTION_WEB, "disconnect idle clients after seconds");
config_move(CONFIG_SECTION_GLOBAL, "respect web browser do not track policy",
CONFIG_SECTION_WEB, "respect do not track policy");
config_move(CONFIG_SECTION_GLOBAL, "web x-frame-options header",
CONFIG_SECTION_WEB, "x-frame-options response header");
config_move(CONFIG_SECTION_GLOBAL, "enable web responses gzip compression",
CONFIG_SECTION_WEB, "enable gzip compression");
config_move(CONFIG_SECTION_GLOBAL, "web compression strategy",
CONFIG_SECTION_WEB, "gzip compression strategy");
config_move(CONFIG_SECTION_GLOBAL, "web compression level",
CONFIG_SECTION_WEB, "gzip compression level");
config_move(CONFIG_SECTION_GLOBAL, "config directory",
CONFIG_SECTION_DIRECTORIES, "config");
config_move(CONFIG_SECTION_GLOBAL, "stock config directory",
CONFIG_SECTION_DIRECTORIES, "stock config");
config_move(CONFIG_SECTION_GLOBAL, "log directory",
CONFIG_SECTION_DIRECTORIES, "log");
config_move(CONFIG_SECTION_GLOBAL, "web files directory",
CONFIG_SECTION_DIRECTORIES, "web");
config_move(CONFIG_SECTION_GLOBAL, "cache directory",
CONFIG_SECTION_DIRECTORIES, "cache");
config_move(CONFIG_SECTION_GLOBAL, "lib directory",
CONFIG_SECTION_DIRECTORIES, "lib");
config_move(CONFIG_SECTION_GLOBAL, "home directory",
CONFIG_SECTION_DIRECTORIES, "home");
config_move(CONFIG_SECTION_GLOBAL, "lock directory",
CONFIG_SECTION_DIRECTORIES, "lock");
config_move(CONFIG_SECTION_GLOBAL, "plugins directory",
CONFIG_SECTION_DIRECTORIES, "plugins");
config_move(CONFIG_SECTION_HEALTH, "health configuration directory",
CONFIG_SECTION_DIRECTORIES, "health config");
config_move(CONFIG_SECTION_HEALTH, "stock health configuration directory",
CONFIG_SECTION_DIRECTORIES, "stock health config");
config_move(CONFIG_SECTION_REGISTRY, "registry db directory",
CONFIG_SECTION_DIRECTORIES, "registry");
config_move(CONFIG_SECTION_GLOBAL, "debug log",
CONFIG_SECTION_LOGS, "debug");
config_move(CONFIG_SECTION_GLOBAL, "error log",
CONFIG_SECTION_LOGS, "error");
config_move(CONFIG_SECTION_GLOBAL, "access log",
CONFIG_SECTION_LOGS, "access");
config_move(CONFIG_SECTION_GLOBAL, "facility log",
CONFIG_SECTION_LOGS, "facility");
config_move(CONFIG_SECTION_GLOBAL, "errors flood protection period",
CONFIG_SECTION_LOGS, "errors flood protection period");
config_move(CONFIG_SECTION_GLOBAL, "errors to trigger flood protection",
CONFIG_SECTION_LOGS, "errors to trigger flood protection");
config_move(CONFIG_SECTION_GLOBAL, "debug flags",
CONFIG_SECTION_LOGS, "debug flags");
config_move(CONFIG_SECTION_GLOBAL, "TZ environment variable",
CONFIG_SECTION_ENV_VARS, "TZ");
config_move(CONFIG_SECTION_PLUGINS, "PATH environment variable",
CONFIG_SECTION_ENV_VARS, "PATH");
config_move(CONFIG_SECTION_PLUGINS, "PYTHONPATH environment variable",
CONFIG_SECTION_ENV_VARS, "PYTHONPATH");
config_move(CONFIG_SECTION_STATSD, "enabled",
CONFIG_SECTION_PLUGINS, "statsd");
config_move(CONFIG_SECTION_GLOBAL, "memory mode",
CONFIG_SECTION_DB, "mode");
config_move(CONFIG_SECTION_GLOBAL, "history",
CONFIG_SECTION_DB, "retention");
config_move(CONFIG_SECTION_GLOBAL, "update every",
CONFIG_SECTION_DB, "update every");
config_move(CONFIG_SECTION_GLOBAL, "page cache size",
CONFIG_SECTION_DB, "dbengine page cache size MB");
config_move(CONFIG_SECTION_DB, "page cache size",
CONFIG_SECTION_DB, "dbengine page cache size MB");
config_move(CONFIG_SECTION_GLOBAL, "page cache uses malloc",
CONFIG_SECTION_DB, "dbengine page cache with malloc");
config_move(CONFIG_SECTION_DB, "page cache with malloc",
CONFIG_SECTION_DB, "dbengine page cache with malloc");
config_move(CONFIG_SECTION_GLOBAL, "dbengine disk space",
CONFIG_SECTION_DB, "dbengine disk space MB");
config_move(CONFIG_SECTION_GLOBAL, "dbengine multihost disk space",
CONFIG_SECTION_DB, "dbengine multihost disk space MB");
config_move(CONFIG_SECTION_GLOBAL, "memory deduplication (ksm)",
CONFIG_SECTION_DB, "memory deduplication (ksm)");
config_move(CONFIG_SECTION_GLOBAL, "dbengine page fetch timeout",
CONFIG_SECTION_DB, "dbengine page fetch timeout secs");
config_move(CONFIG_SECTION_GLOBAL, "dbengine page fetch retries",
CONFIG_SECTION_DB, "dbengine page fetch retries");
config_move(CONFIG_SECTION_GLOBAL, "dbengine extent pages",
CONFIG_SECTION_DB, "dbengine pages per extent");
config_move(CONFIG_SECTION_GLOBAL, "cleanup obsolete charts after seconds",
CONFIG_SECTION_DB, "cleanup obsolete charts after secs");
config_move(CONFIG_SECTION_GLOBAL, "gap when lost iterations above",
CONFIG_SECTION_DB, "gap when lost iterations above");
config_move(CONFIG_SECTION_GLOBAL, "cleanup orphan hosts after seconds",
CONFIG_SECTION_DB, "cleanup orphan hosts after secs");
config_move(CONFIG_SECTION_GLOBAL, "delete obsolete charts files",
CONFIG_SECTION_DB, "delete obsolete charts files");
config_move(CONFIG_SECTION_GLOBAL, "delete orphan hosts files",
CONFIG_SECTION_DB, "delete orphan hosts files");
config_move(CONFIG_SECTION_GLOBAL, "enable zero metrics",
CONFIG_SECTION_DB, "enable zero metrics");
config_move(CONFIG_SECTION_LOGS, "error",
CONFIG_SECTION_LOGS, "daemon");
config_move(CONFIG_SECTION_LOGS, "severity level",
CONFIG_SECTION_LOGS, "level");
config_move(CONFIG_SECTION_LOGS, "errors to trigger flood protection",
CONFIG_SECTION_LOGS, "logs to trigger flood protection");
config_move(CONFIG_SECTION_LOGS, "errors flood protection period",
CONFIG_SECTION_LOGS, "logs flood protection period");
config_move(CONFIG_SECTION_HEALTH, "is ephemeral",
CONFIG_SECTION_GLOBAL, "is ephemeral node");
config_move(CONFIG_SECTION_HEALTH, "has unstable connection",
CONFIG_SECTION_GLOBAL, "has unstable connection");
}
static int get_hostname(char *buf, size_t buf_size) {
if (netdata_configured_host_prefix && *netdata_configured_host_prefix) {
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/etc/hostname", netdata_configured_host_prefix);
if (!read_txt_file(filename, buf, buf_size)) {
trim(buf);
return 0;
}
}
return gethostname(buf, buf_size);
}
static void get_netdata_configured_variables() {
backwards_compatible_config();
// ------------------------------------------------------------------------
// get the hostname
netdata_configured_host_prefix = config_get(CONFIG_SECTION_GLOBAL, "host access prefix", "");
verify_netdata_host_prefix(true);
char buf[HOSTNAME_MAX + 1];
if (get_hostname(buf, HOSTNAME_MAX))
netdata_log_error("Cannot get machine hostname.");
netdata_configured_hostname = config_get(CONFIG_SECTION_GLOBAL, "hostname", buf);
netdata_log_debug(D_OPTIONS, "hostname set to '%s'", netdata_configured_hostname);
// ------------------------------------------------------------------------
// get default database update frequency
default_rrd_update_every = (int) config_get_number(CONFIG_SECTION_DB, "update every", UPDATE_EVERY);
if(default_rrd_update_every < 1 || default_rrd_update_every > 600) {
netdata_log_error("Invalid data collection frequency (update every) %d given. Defaulting to %d.", default_rrd_update_every, UPDATE_EVERY);
default_rrd_update_every = UPDATE_EVERY;
config_set_number(CONFIG_SECTION_DB, "update every", default_rrd_update_every);
}
// ------------------------------------------------------------------------
// get default memory mode for the database
{
const char *mode = config_get(CONFIG_SECTION_DB, "mode", rrd_memory_mode_name(default_rrd_memory_mode));
default_rrd_memory_mode = rrd_memory_mode_id(mode);
if(strcmp(mode, rrd_memory_mode_name(default_rrd_memory_mode)) != 0) {
netdata_log_error("Invalid memory mode '%s' given. Using '%s'", mode, rrd_memory_mode_name(default_rrd_memory_mode));
config_set(CONFIG_SECTION_DB, "mode", rrd_memory_mode_name(default_rrd_memory_mode));
}
}
// ------------------------------------------------------------------------
// get default database size
if(default_rrd_memory_mode != RRD_MEMORY_MODE_DBENGINE && default_rrd_memory_mode != RRD_MEMORY_MODE_NONE) {
default_rrd_history_entries = (int)config_get_number(
CONFIG_SECTION_DB, "retention",
align_entries_to_pagesize(default_rrd_memory_mode, RRD_DEFAULT_HISTORY_ENTRIES));
long h = align_entries_to_pagesize(default_rrd_memory_mode, default_rrd_history_entries);
if (h != default_rrd_history_entries) {
config_set_number(CONFIG_SECTION_DB, "retention", h);
default_rrd_history_entries = (int)h;
}
}
// ------------------------------------------------------------------------
// get system paths
netdata_configured_user_config_dir = config_get(CONFIG_SECTION_DIRECTORIES, "config", netdata_configured_user_config_dir);
netdata_configured_stock_config_dir = config_get(CONFIG_SECTION_DIRECTORIES, "stock config", netdata_configured_stock_config_dir);
netdata_configured_log_dir = config_get(CONFIG_SECTION_DIRECTORIES, "log", netdata_configured_log_dir);
netdata_configured_web_dir = config_get(CONFIG_SECTION_DIRECTORIES, "web", netdata_configured_web_dir);
netdata_configured_cache_dir = config_get(CONFIG_SECTION_DIRECTORIES, "cache", netdata_configured_cache_dir);
netdata_configured_varlib_dir = config_get(CONFIG_SECTION_DIRECTORIES, "lib", netdata_configured_varlib_dir);
netdata_configured_lock_dir = initialize_lock_directory_path(netdata_configured_varlib_dir);
{
pluginsd_initialize_plugin_directories();
netdata_configured_primary_plugins_dir = plugin_directories[PLUGINSD_STOCK_PLUGINS_DIRECTORY_PATH];
}
#ifdef ENABLE_DBENGINE
// ------------------------------------------------------------------------
// get default Database Engine page type
const char *page_type = config_get(CONFIG_SECTION_DB, "dbengine page type", "raw");
if (strcmp(page_type, "gorilla") == 0) {
tier_page_type[0] = PAGE_GORILLA_METRICS;
} else if (strcmp(page_type, "raw") != 0) {
netdata_log_error("Invalid dbengine page type ''%s' given. Defaulting to 'raw'.", page_type);
}
// ------------------------------------------------------------------------
// get default Database Engine page cache size in MiB
default_rrdeng_page_cache_mb = (int) config_get_number(CONFIG_SECTION_DB, "dbengine page cache size MB", default_rrdeng_page_cache_mb);
default_rrdeng_extent_cache_mb = (int) config_get_number(CONFIG_SECTION_DB, "dbengine extent cache size MB", default_rrdeng_extent_cache_mb);
db_engine_journal_check = config_get_boolean(CONFIG_SECTION_DB, "dbengine enable journal integrity check", CONFIG_BOOLEAN_NO);
if(default_rrdeng_extent_cache_mb < 0)
default_rrdeng_extent_cache_mb = 0;
if(default_rrdeng_page_cache_mb < RRDENG_MIN_PAGE_CACHE_SIZE_MB) {
netdata_log_error("Invalid page cache size %d given. Defaulting to %d.", default_rrdeng_page_cache_mb, RRDENG_MIN_PAGE_CACHE_SIZE_MB);
default_rrdeng_page_cache_mb = RRDENG_MIN_PAGE_CACHE_SIZE_MB;
config_set_number(CONFIG_SECTION_DB, "dbengine page cache size MB", default_rrdeng_page_cache_mb);
}
// ------------------------------------------------------------------------
// get default Database Engine disk space quota in MiB
default_rrdeng_disk_quota_mb = (int) config_get_number(CONFIG_SECTION_DB, "dbengine disk space MB", default_rrdeng_disk_quota_mb);
if(default_rrdeng_disk_quota_mb < RRDENG_MIN_DISK_SPACE_MB) {
netdata_log_error("Invalid dbengine disk space %d given. Defaulting to %d.", default_rrdeng_disk_quota_mb, RRDENG_MIN_DISK_SPACE_MB);
default_rrdeng_disk_quota_mb = RRDENG_MIN_DISK_SPACE_MB;
config_set_number(CONFIG_SECTION_DB, "dbengine disk space MB", default_rrdeng_disk_quota_mb);
}
default_multidb_disk_quota_mb = (int) config_get_number(CONFIG_SECTION_DB, "dbengine multihost disk space MB", compute_multidb_diskspace());
if(default_multidb_disk_quota_mb < RRDENG_MIN_DISK_SPACE_MB) {
netdata_log_error("Invalid multidb disk space %d given. Defaulting to %d.", default_multidb_disk_quota_mb, default_rrdeng_disk_quota_mb);
default_multidb_disk_quota_mb = default_rrdeng_disk_quota_mb;
config_set_number(CONFIG_SECTION_DB, "dbengine multihost disk space MB", default_multidb_disk_quota_mb);
}
#else
if (default_rrd_memory_mode == RRD_MEMORY_MODE_DBENGINE) {
error_report("RRD_MEMORY_MODE_DBENGINE is not supported in this platform. The agent will use db mode 'save' instead.");
default_rrd_memory_mode = RRD_MEMORY_MODE_RAM;
}
#endif
// --------------------------------------------------------------------
// get KSM settings
#ifdef MADV_MERGEABLE
enable_ksm = config_get_boolean(CONFIG_SECTION_DB, "memory deduplication (ksm)", enable_ksm);
#endif
// --------------------------------------------------------------------
// metric correlations
enable_metric_correlations = config_get_boolean(CONFIG_SECTION_GLOBAL, "enable metric correlations", enable_metric_correlations);
default_metric_correlations_method = weights_string_to_method(config_get(
CONFIG_SECTION_GLOBAL, "metric correlations method",
weights_method_to_string(default_metric_correlations_method)));
// --------------------------------------------------------------------
rrdset_free_obsolete_time_s = config_get_number(CONFIG_SECTION_DB, "cleanup obsolete charts after secs", rrdset_free_obsolete_time_s);
rrdhost_free_ephemeral_time_s = config_get_number(CONFIG_SECTION_DB, "cleanup ephemeral hosts after secs", rrdhost_free_ephemeral_time_s);
// Current chart locking and invalidation scheme doesn't prevent Netdata from segmentation faults if a short
// cleanup delay is set. Extensive stress tests showed that 10 seconds is quite a safe delay. Look at
// https://github.com/netdata/netdata/pull/11222#issuecomment-868367920 for more information.
if (rrdset_free_obsolete_time_s < 10) {
rrdset_free_obsolete_time_s = 10;
netdata_log_info("The \"cleanup obsolete charts after seconds\" option was set to 10 seconds.");
config_set_number(CONFIG_SECTION_DB, "cleanup obsolete charts after secs", rrdset_free_obsolete_time_s);
}
gap_when_lost_iterations_above = (int)config_get_number(CONFIG_SECTION_DB, "gap when lost iterations above", gap_when_lost_iterations_above);
if (gap_when_lost_iterations_above < 1) {
gap_when_lost_iterations_above = 1;
config_set_number(CONFIG_SECTION_DB, "gap when lost iterations above", gap_when_lost_iterations_above);
}
gap_when_lost_iterations_above += 2;
// --------------------------------------------------------------------
// get various system parameters
get_system_HZ();
get_system_cpus_uncached();
get_system_pid_max();
}
static void post_conf_load(char **user)
{
// --------------------------------------------------------------------
// get the user we should run
// IMPORTANT: this is required before web_files_uid()
if(getuid() == 0) {
*user = config_get(CONFIG_SECTION_GLOBAL, "run as user", NETDATA_USER);
}
else {
struct passwd *passwd = getpwuid(getuid());
*user = config_get(CONFIG_SECTION_GLOBAL, "run as user", (passwd && passwd->pw_name)?passwd->pw_name:"");
}
}
static bool load_netdata_conf(char *filename, char overwrite_used, char **user) {
errno = 0;
int ret = 0;
if(filename && *filename) {
ret = config_load(filename, overwrite_used, NULL);
if(!ret)
netdata_log_error("CONFIG: cannot load config file '%s'.", filename);
}
else {
filename = strdupz_path_subpath(netdata_configured_user_config_dir, "netdata.conf");
ret = config_load(filename, overwrite_used, NULL);
if(!ret) {
netdata_log_info("CONFIG: cannot load user config '%s'. Will try the stock version.", filename);
freez(filename);
filename = strdupz_path_subpath(netdata_configured_stock_config_dir, "netdata.conf");
ret = config_load(filename, overwrite_used, NULL);
if(!ret)
netdata_log_info("CONFIG: cannot load stock config '%s'. Running with internal defaults.", filename);
}
freez(filename);
}
post_conf_load(user);
return ret;
}
// coverity[ +tainted_string_sanitize_content : arg-0 ]
static inline void coverity_remove_taint(char *s)
{
(void)s;
}
int get_system_info(struct rrdhost_system_info *system_info) {
char *script;
script = mallocz(sizeof(char) * (strlen(netdata_configured_primary_plugins_dir) + strlen("system-info.sh") + 2));
sprintf(script, "%s/%s", netdata_configured_primary_plugins_dir, "system-info.sh");
if (unlikely(access(script, R_OK) != 0)) {
netdata_log_error("System info script %s not found.",script);
freez(script);
return 1;
}
pid_t command_pid;
FILE *fp_child_input;
FILE *fp_child_output = netdata_popen(script, &command_pid, &fp_child_input);
if(fp_child_output) {
char line[200 + 1];
// Removed the double strlens, if the Coverity tainted string warning reappears I'll revert.
// One time init code, but I'm curious about the warning...
while (fgets(line, 200, fp_child_output) != NULL) {
char *value=line;
while (*value && *value != '=') value++;
if (*value=='=') {
*value='\0';
value++;
char *end = value;
while (*end && *end != '\n') end++;
*end = '\0'; // Overwrite newline if present
coverity_remove_taint(line); // I/O is controlled result of system_info.sh - not tainted
coverity_remove_taint(value);
if(unlikely(rrdhost_set_system_info_variable(system_info, line, value))) {
netdata_log_error("Unexpected environment variable %s=%s", line, value);
} else {
setenv(line, value, 1);
}
}
}
netdata_pclose(fp_child_input, fp_child_output, command_pid);
}
freez(script);
return 0;
}
/* Any config setting that can be accessed without a default value i.e. configget(...,...,NULL) *MUST*
be set in this procedure to be called in all the relevant code paths.
*/
#define delta_startup_time(msg) \
{ \
usec_t now_ut = now_monotonic_usec(); \
if(prev_msg) \
netdata_log_info("NETDATA STARTUP: in %7llu ms, %s - next: %s", (now_ut - last_ut) / USEC_PER_MS, prev_msg, msg); \
else \
netdata_log_info("NETDATA STARTUP: next: %s", msg); \
last_ut = now_ut; \
prev_msg = msg; \
}
int buffer_unittest(void);
int pgc_unittest(void);
int mrg_unittest(void);
int julytest(void);
int pluginsd_parser_unittest(void);
void replication_initialize(void);
void bearer_tokens_init(void);
int unittest_rrdpush_compressions(void);
int uuid_unittest(void);
int progress_unittest(void);
int dyncfg_unittest(void);
int unittest_prepare_rrd(char **user) {
post_conf_load(user);
get_netdata_configured_variables();
default_rrd_update_every = 1;
default_rrd_memory_mode = RRD_MEMORY_MODE_RAM;
health_plugin_disable();
storage_tiers = 1;
registry_init();
if(rrd_init("unittest", NULL, true)) {
fprintf(stderr, "rrd_init failed for unittest\n");
return 1;
}
default_rrdpush_enabled = 0;
return 0;
}
int main(int argc, char **argv) {
// initialize the system clocks
clocks_init();
netdata_start_time = now_realtime_sec();
usec_t started_ut = now_monotonic_usec();
usec_t last_ut = started_ut;
const char *prev_msg = NULL;
int i;
int config_loaded = 0;
int dont_fork = 0;
bool close_open_fds = true;
size_t default_stacksize;
char *user = NULL;
static_threads = static_threads_get();
netdata_ready = false;
// set the name for logging
program_name = "netdata";
if (argc > 1 && strcmp(argv[1], SPAWN_SERVER_COMMAND_LINE_ARGUMENT) == 0) {
// don't run netdata, this is the spawn server
spawn_server();
exit(0);
}
// parse options
{
int num_opts = sizeof(option_definitions) / sizeof(struct option_def);
char optstring[(num_opts * 2) + 1];
int string_i = 0;
for( i = 0; i < num_opts; i++ ) {
optstring[string_i] = option_definitions[i].val;
string_i++;
if(option_definitions[i].arg_name) {
optstring[string_i] = ':';
string_i++;
}
}
// terminate optstring
optstring[string_i] ='\0';
optstring[(num_opts *2)] ='\0';
int opt;
while( (opt = getopt(argc, argv, optstring)) != -1 ) {
switch(opt) {
case 'c':
if(!load_netdata_conf(optarg, 1, &user)) {
netdata_log_error("Cannot load configuration file %s.", optarg);
return 1;
}
else {
netdata_log_debug(D_OPTIONS, "Configuration loaded from %s.", optarg);
load_cloud_conf(1);
config_loaded = 1;
}
break;
case 'D':
dont_fork = 1;
break;
case 'd':
dont_fork = 0;
break;
case 'h':
return help(0);
case 'i':
config_set(CONFIG_SECTION_WEB, "bind to", optarg);
break;
case 'P':
strncpy(pidfile, optarg, FILENAME_MAX);
pidfile[FILENAME_MAX] = '\0';
break;
case 'p':
config_set(CONFIG_SECTION_GLOBAL, "default port", optarg);
break;
case 's':
config_set(CONFIG_SECTION_GLOBAL, "host access prefix", optarg);
break;
case 't':
config_set(CONFIG_SECTION_GLOBAL, "update every", optarg);
break;
case 'u':
config_set(CONFIG_SECTION_GLOBAL, "run as user", optarg);
break;
case 'v':
case 'V':
printf("%s %s\n", program_name, program_version);
return 0;
case 'W':
{
char* stacksize_string = "stacksize=";
char* debug_flags_string = "debug_flags=";
char* claim_string = "claim";
#ifdef ENABLE_DBENGINE
char* createdataset_string = "createdataset=";
char* stresstest_string = "stresstest=";
if(strcmp(optarg, "pgd-tests") == 0) {
return pgd_test(argc, argv);
}
#endif
if(strcmp(optarg, "sqlite-meta-recover") == 0) {
sql_init_database(DB_CHECK_RECOVER, 0);
return 0;
}
if(strcmp(optarg, "sqlite-compact") == 0) {
sql_init_database(DB_CHECK_RECLAIM_SPACE, 0);
return 0;
}
if(strcmp(optarg, "sqlite-analyze") == 0) {
sql_init_database(DB_CHECK_ANALYZE, 0);
return 0;
}
if(strcmp(optarg, "unittest") == 0) {
unittest_running = true;
if (pluginsd_parser_unittest()) return 1;
if (unit_test_static_threads()) return 1;
if (unit_test_buffer()) return 1;
if (unit_test_str2ld()) return 1;
if (buffer_unittest()) return 1;
if (unit_test_bitmaps()) return 1;
// No call to load the config file on this code-path
if (unittest_prepare_rrd(&user)) return 1;
if (run_all_mockup_tests()) return 1;
if (unit_test_storage()) return 1;
#ifdef ENABLE_DBENGINE
if (test_dbengine()) return 1;
#endif
if (test_sqlite()) return 1;
if (string_unittest(10000)) return 1;
if (dictionary_unittest(10000)) return 1;
if (aral_unittest(10000)) return 1;
if (rrdlabels_unittest()) return 1;
if (ctx_unittest()) return 1;
if (uuid_unittest()) return 1;
if (dyncfg_unittest()) return 1;
fprintf(stderr, "\n\nALL TESTS PASSED\n\n");
return 0;
}
else if(strcmp(optarg, "escapetest") == 0) {
return command_argument_sanitization_tests();
}
else if(strcmp(optarg, "dicttest") == 0) {
unittest_running = true;
return dictionary_unittest(10000);
}
else if(strcmp(optarg, "araltest") == 0) {
unittest_running = true;
return aral_unittest(10000);
}
else if(strcmp(optarg, "stringtest") == 0) {
unittest_running = true;
return string_unittest(10000);
}
else if(strcmp(optarg, "rrdlabelstest") == 0) {
unittest_running = true;
return rrdlabels_unittest();
}
else if(strcmp(optarg, "buffertest") == 0) {
unittest_running = true;
return buffer_unittest();
}
else if(strcmp(optarg, "uuidtest") == 0) {
unittest_running = true;
return uuid_unittest();
}
#ifdef ENABLE_DBENGINE
else if(strcmp(optarg, "mctest") == 0) {
unittest_running = true;
return mc_unittest();
}
else if(strcmp(optarg, "ctxtest") == 0) {
unittest_running = true;
return ctx_unittest();
}
else if(strcmp(optarg, "metatest") == 0) {
unittest_running = true;
return metadata_unittest();
}
else if(strcmp(optarg, "pgctest") == 0) {
unittest_running = true;
return pgc_unittest();
}
else if(strcmp(optarg, "mrgtest") == 0) {
unittest_running = true;
return mrg_unittest();
}
else if(strcmp(optarg, "julytest") == 0) {
unittest_running = true;
return julytest();
}
else if(strcmp(optarg, "parsertest") == 0) {
unittest_running = true;
return pluginsd_parser_unittest();
}
else if(strcmp(optarg, "rrdpush_compressions_test") == 0) {
unittest_running = true;
return unittest_rrdpush_compressions();
}
else if(strcmp(optarg, "progresstest") == 0) {
unittest_running = true;
return progress_unittest();
}
else if(strcmp(optarg, "dyncfgtest") == 0) {
unittest_running = true;
if(unittest_prepare_rrd(&user))
return 1;
return dyncfg_unittest();
}
else if(strncmp(optarg, createdataset_string, strlen(createdataset_string)) == 0) {
optarg += strlen(createdataset_string);
unsigned history_seconds = strtoul(optarg, NULL, 0);
post_conf_load(&user);
get_netdata_configured_variables();
default_rrd_update_every = 1;
registry_init();
if(rrd_init("dbengine-dataset", NULL, true)) {
fprintf(stderr, "rrd_init failed for unittest\n");
return 1;
}
generate_dbengine_dataset(history_seconds);
return 0;
}
else if(strncmp(optarg, stresstest_string, strlen(stresstest_string)) == 0) {
char *endptr;
unsigned test_duration_sec = 0, dset_charts = 0, query_threads = 0, ramp_up_seconds = 0,
page_cache_mb = 0, disk_space_mb = 0, workers = 16;
optarg += strlen(stresstest_string);
test_duration_sec = (unsigned)strtoul(optarg, &endptr, 0);
if (',' == *endptr)
dset_charts = (unsigned)strtoul(endptr + 1, &endptr, 0);
if (',' == *endptr)
query_threads = (unsigned)strtoul(endptr + 1, &endptr, 0);
if (',' == *endptr)
ramp_up_seconds = (unsigned)strtoul(endptr + 1, &endptr, 0);
if (',' == *endptr)
page_cache_mb = (unsigned)strtoul(endptr + 1, &endptr, 0);
if (',' == *endptr)
disk_space_mb = (unsigned)strtoul(endptr + 1, &endptr, 0);
if (',' == *endptr)
workers = (unsigned)strtoul(endptr + 1, &endptr, 0);
if (workers > 1024)
workers = 1024;
char workers_str[16];
snprintf(workers_str, 15, "%u", workers);
setenv("UV_THREADPOOL_SIZE", workers_str, 1);
dbengine_stress_test(test_duration_sec, dset_charts, query_threads, ramp_up_seconds,
page_cache_mb, disk_space_mb);
return 0;
}
#endif
else if(strcmp(optarg, "simple-pattern") == 0) {
if(optind + 2 > argc) {
fprintf(stderr, "%s", "\nUSAGE: -W simple-pattern 'pattern' 'string'\n\n"
" Checks if 'pattern' matches the given 'string'.\n"
" - 'pattern' can be one or more space separated words.\n"
" - each 'word' can contain one or more asterisks.\n"
" - words starting with '!' give negative matches.\n"
" - words are processed left to right\n"
"\n"
"Examples:\n"
"\n"
" > match all veth interfaces, except veth0:\n"
"\n"
" -W simple-pattern '!veth0 veth*' 'veth12'\n"
"\n"
"\n"
" > match all *.ext files directly in /path/:\n"
" (this will not match *.ext files in a subdir of /path/)\n"
"\n"
" -W simple-pattern '!/path/*/*.ext /path/*.ext' '/path/test.ext'\n"
"\n"
);
return 1;
}
const char *haystack = argv[optind];
const char *needle = argv[optind + 1];
size_t len = strlen(needle) + 1;
char wildcarded[len];
SIMPLE_PATTERN *p = simple_pattern_create(haystack, NULL, SIMPLE_PATTERN_EXACT, true);
SIMPLE_PATTERN_RESULT ret = simple_pattern_matches_extract(p, needle, wildcarded, len);
simple_pattern_free(p);
if(ret == SP_MATCHED_POSITIVE) {
fprintf(stdout, "RESULT: POSITIVE MATCHED - pattern '%s' matches '%s', wildcarded '%s'\n", haystack, needle, wildcarded);
return 0;
}
else if(ret == SP_MATCHED_NEGATIVE) {
fprintf(stdout, "RESULT: NEGATIVE MATCHED - pattern '%s' matches '%s', wildcarded '%s'\n", haystack, needle, wildcarded);
return 0;
}
else {
fprintf(stdout, "RESULT: NOT MATCHED - pattern '%s' does not match '%s', wildcarded '%s'\n", haystack, needle, wildcarded);
return 1;
}
}
else if(strncmp(optarg, stacksize_string, strlen(stacksize_string)) == 0) {
optarg += strlen(stacksize_string);
config_set(CONFIG_SECTION_GLOBAL, "pthread stack size", optarg);
}
else if(strncmp(optarg, debug_flags_string, strlen(debug_flags_string)) == 0) {
optarg += strlen(debug_flags_string);
config_set(CONFIG_SECTION_LOGS, "debug flags", optarg);
debug_flags = strtoull(optarg, NULL, 0);
}
else if(strcmp(optarg, "set") == 0) {
if(optind + 3 > argc) {
fprintf(stderr, "%s", "\nUSAGE: -W set 'section' 'key' 'value'\n\n"
" Overwrites settings of netdata.conf.\n"
"\n"
" These options interact with: -c netdata.conf\n"
" If -c netdata.conf is given on the command line,\n"
" before -W set... the user may overwrite command\n"
" line parameters at netdata.conf\n"
" If -c netdata.conf is given after (or missing)\n"
" -W set... the user cannot overwrite the command line\n"
" parameters."
"\n"
);
return 1;
}
const char *section = argv[optind];
const char *key = argv[optind + 1];
const char *value = argv[optind + 2];
optind += 3;
// set this one as the default
// only if it is not already set in the config file
// so the caller can use -c netdata.conf before or
// after this parameter to prevent or allow overwriting
// variables at netdata.conf
config_set_default(section, key, value);
// fprintf(stderr, "SET section '%s', key '%s', value '%s'\n", section, key, value);
}
else if(strcmp(optarg, "set2") == 0) {
if(optind + 4 > argc) {
fprintf(stderr, "%s", "\nUSAGE: -W set 'conf_file' 'section' 'key' 'value'\n\n"
" Overwrites settings of netdata.conf or cloud.conf\n"
"\n"
" These options interact with: -c netdata.conf\n"
" If -c netdata.conf is given on the command line,\n"
" before -W set... the user may overwrite command\n"
" line parameters at netdata.conf\n"
" If -c netdata.conf is given after (or missing)\n"
" -W set... the user cannot overwrite the command line\n"
" parameters."
" conf_file can be \"cloud\" or \"netdata\".\n"
"\n"
);
return 1;
}
const char *conf_file = argv[optind]; /* "cloud" is cloud.conf, otherwise netdata.conf */
struct config *tmp_config = strcmp(conf_file, "cloud") ? &netdata_config : &cloud_config;
const char *section = argv[optind + 1];
const char *key = argv[optind + 2];
const char *value = argv[optind + 3];
optind += 4;
// set this one as the default
// only if it is not already set in the config file
// so the caller can use -c netdata.conf before or
// after this parameter to prevent or allow overwriting
// variables at netdata.conf
appconfig_set_default(tmp_config, section, key, value);
// fprintf(stderr, "SET section '%s', key '%s', value '%s'\n", section, key, value);
}
else if(strcmp(optarg, "get") == 0) {
if(optind + 3 > argc) {
fprintf(stderr, "%s", "\nUSAGE: -W get 'section' 'key' 'value'\n\n"
" Prints settings of netdata.conf.\n"
"\n"
" These options interact with: -c netdata.conf\n"
" -c netdata.conf has to be given before -W get.\n"
"\n"
);
return 1;
}
if(!config_loaded) {
fprintf(stderr, "warning: no configuration file has been loaded. Use -c CONFIG_FILE, before -W get. Using default config.\n");
load_netdata_conf(NULL, 0, &user);
}
get_netdata_configured_variables();
const char *section = argv[optind];
const char *key = argv[optind + 1];
const char *def = argv[optind + 2];
const char *value = config_get(section, key, def);
printf("%s\n", value);
return 0;
}
else if(strcmp(optarg, "get2") == 0) {
if(optind + 4 > argc) {
fprintf(stderr, "%s", "\nUSAGE: -W get2 'conf_file' 'section' 'key' 'value'\n\n"
" Prints settings of netdata.conf or cloud.conf\n"
"\n"
" These options interact with: -c netdata.conf\n"
" -c netdata.conf has to be given before -W get2.\n"
" conf_file can be \"cloud\" or \"netdata\".\n"
"\n"
);
return 1;
}
if(!config_loaded) {
fprintf(stderr, "warning: no configuration file has been loaded. Use -c CONFIG_FILE, before -W get. Using default config.\n");
load_netdata_conf(NULL, 0, &user);
load_cloud_conf(1);
}
get_netdata_configured_variables();
const char *conf_file = argv[optind]; /* "cloud" is cloud.conf, otherwise netdata.conf */
struct config *tmp_config = strcmp(conf_file, "cloud") ? &netdata_config : &cloud_config;
const char *section = argv[optind + 1];
const char *key = argv[optind + 2];
const char *def = argv[optind + 3];
const char *value = appconfig_get(tmp_config, section, key, def);
printf("%s\n", value);
return 0;
}
else if(strncmp(optarg, claim_string, strlen(claim_string)) == 0) {
/* will trigger a claiming attempt when the agent is initialized */
claiming_pending_arguments = optarg + strlen(claim_string);
}
else if(strcmp(optarg, "buildinfo") == 0) {
print_build_info();
return 0;
}
else if(strcmp(optarg, "buildinfojson") == 0) {
print_build_info_json();
return 0;
}
else if(strcmp(optarg, "keepopenfds") == 0) {
// Internal dev option to skip closing inherited
// open FDs. Useful, when we want to run the agent
// under profiling tools that open/maintain their
// own FDs.
close_open_fds = false;
} else {
fprintf(stderr, "Unknown -W parameter '%s'\n", optarg);
return help(1);
}
}
break;
default: /* ? */
fprintf(stderr, "Unknown parameter '%c'\n", opt);
return help(1);
}
}
}
if (close_open_fds == true) {
// close all open file descriptors, except the standard ones
// the caller may have left open files (lxc-attach has this issue)
for_each_open_fd(OPEN_FD_ACTION_CLOSE, OPEN_FD_EXCLUDE_STDIN | OPEN_FD_EXCLUDE_STDOUT | OPEN_FD_EXCLUDE_STDERR);
}
if(!config_loaded) {
load_netdata_conf(NULL, 0, &user);
load_cloud_conf(0);
}
// ------------------------------------------------------------------------
// initialize netdata
{
char *pmax = config_get(CONFIG_SECTION_GLOBAL, "glibc malloc arena max for plugins", "1");
if(pmax && *pmax)
setenv("MALLOC_ARENA_MAX", pmax, 1);
#if defined(HAVE_C_MALLOPT)
i = (int)config_get_number(CONFIG_SECTION_GLOBAL, "glibc malloc arena max for netdata", 1);
if(i > 0)
mallopt(M_ARENA_MAX, 1);
#ifdef NETDATA_INTERNAL_CHECKS
mallopt(M_PERTURB, 0x5A);
// mallopt(M_MXFAST, 0);
#endif
#endif
// set libuv worker threads
libuv_worker_threads = (int)get_netdata_cpus() * 6;
if(libuv_worker_threads < MIN_LIBUV_WORKER_THREADS)
libuv_worker_threads = MIN_LIBUV_WORKER_THREADS;
if(libuv_worker_threads > MAX_LIBUV_WORKER_THREADS)
libuv_worker_threads = MAX_LIBUV_WORKER_THREADS;
libuv_worker_threads = config_get_number(CONFIG_SECTION_GLOBAL, "libuv worker threads", libuv_worker_threads);
if(libuv_worker_threads < MIN_LIBUV_WORKER_THREADS) {
libuv_worker_threads = MIN_LIBUV_WORKER_THREADS;
config_set_number(CONFIG_SECTION_GLOBAL, "libuv worker threads", libuv_worker_threads);
}
{
char buf[20 + 1];
snprintfz(buf, sizeof(buf) - 1, "%d", libuv_worker_threads);
setenv("UV_THREADPOOL_SIZE", buf, 1);
}
// prepare configuration environment variables for the plugins
get_netdata_configured_variables();
set_global_environment();
// work while we are cd into config_dir
// to allow the plugins refer to their config
// files using relative filenames
if(chdir(netdata_configured_user_config_dir) == -1)
fatal("Cannot cd to '%s'", netdata_configured_user_config_dir);
// Get execution path before switching user to avoid permission issues
get_netdata_execution_path();
}
{
// --------------------------------------------------------------------
// get the debugging flags from the configuration file
char *flags = config_get(CONFIG_SECTION_LOGS, "debug flags", "0x0000000000000000");
setenv("NETDATA_DEBUG_FLAGS", flags, 1);
debug_flags = strtoull(flags, NULL, 0);
netdata_log_debug(D_OPTIONS, "Debug flags set to '0x%" PRIX64 "'.", debug_flags);
if(debug_flags != 0) {
struct rlimit rl = { RLIM_INFINITY, RLIM_INFINITY };
if(setrlimit(RLIMIT_CORE, &rl) != 0)
netdata_log_error("Cannot request unlimited core dumps for debugging... Proceeding anyway...");
#ifdef HAVE_SYS_PRCTL_H
prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
#endif
}
// --------------------------------------------------------------------
// get log filenames and settings
log_init();
nd_log_limits_unlimited();
// initialize the log files
nd_log_initialize();
netdata_log_info("Netdata agent version \""VERSION"\" is starting");
ieee754_doubles = is_system_ieee754_double();
if(!ieee754_doubles)
globally_disabled_capabilities |= STREAM_CAP_IEEE754;
aral_judy_init();
get_system_timezone();
bearer_tokens_init();
replication_initialize();
rrd_functions_inflight_init();
// --------------------------------------------------------------------
// get the certificate and start security
#ifdef ENABLE_HTTPS
security_init();
#endif
// --------------------------------------------------------------------
// This is the safest place to start the SILENCERS structure
health_set_silencers_filename();
health_initialize_global_silencers();
// --------------------------------------------------------------------
// Initialize ML configuration
delta_startup_time("initialize ML");
ml_init();
// --------------------------------------------------------------------
// setup process signals
// block signals while initializing threads.
// this causes the threads to block signals.
delta_startup_time("initialize signals");
signals_block();
signals_init(); // setup the signals we want to use
// --------------------------------------------------------------------
// check which threads are enabled and initialize them
delta_startup_time("initialize static threads");
// setup threads configs
default_stacksize = netdata_threads_init();
#ifdef NETDATA_INTERNAL_CHECKS
config_set_boolean(CONFIG_SECTION_PLUGINS, "netdata monitoring", true);
config_set_boolean(CONFIG_SECTION_PLUGINS, "netdata monitoring extended", true);
#endif
if(config_get_boolean(CONFIG_SECTION_PLUGINS, "netdata monitoring extended", false))
// this has to run before starting any other threads that use workers
workers_utilization_enable();
for (i = 0; static_threads[i].name != NULL ; i++) {
struct netdata_static_thread *st = &static_threads[i];
if(st->config_name)
st->enabled = config_get_boolean(st->config_section, st->config_name, st->enabled);
if(st->enabled && st->init_routine)
st->init_routine();
if(st->env_name)
setenv(st->env_name, st->enabled?"YES":"NO", 1);
if(st->global_variable)
*st->global_variable = (st->enabled) ? true : false;
}
// --------------------------------------------------------------------
// create the listening sockets
delta_startup_time("initialize web server");
web_client_api_v1_init();
web_server_threading_selection();
if(web_server_mode != WEB_SERVER_MODE_NONE)
api_listen_sockets_setup();
#ifdef ENABLE_H2O
delta_startup_time("initialize h2o server");
for (int t = 0; static_threads[t].name; t++) {
if (static_threads[t].start_routine == h2o_main)
static_threads[t].enabled = httpd_is_enabled();
}
#endif
}
delta_startup_time("set resource limits");
#ifdef NETDATA_INTERNAL_CHECKS
if(debug_flags != 0) {
struct rlimit rl = { RLIM_INFINITY, RLIM_INFINITY };
if(setrlimit(RLIMIT_CORE, &rl) != 0)
netdata_log_error("Cannot request unlimited core dumps for debugging... Proceeding anyway...");
#ifdef HAVE_SYS_PRCTL_H
prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
#endif
}
#endif /* NETDATA_INTERNAL_CHECKS */
set_nofile_limit(&rlimit_nofile);
delta_startup_time("become daemon");
// fork, switch user, create pid file, set process priority
if(become_daemon(dont_fork, user) == -1)
fatal("Cannot daemonize myself.");
// init sentry
#ifdef ENABLE_SENTRY
sentry_native_init();
#endif
// The "HOME" env var points to the root's home dir because Netdata starts as root. Can't use "HOME".
struct passwd *pw = getpwuid(getuid());
if (config_exists(CONFIG_SECTION_DIRECTORIES, "home") || !pw || !pw->pw_dir) {
netdata_configured_home_dir = config_get(CONFIG_SECTION_DIRECTORIES, "home", netdata_configured_home_dir);
} else {
netdata_configured_home_dir = config_get(CONFIG_SECTION_DIRECTORIES, "home", pw->pw_dir);
}
setenv("HOME", netdata_configured_home_dir, 1);
dyncfg_init(true);
netdata_log_info("netdata started on pid %d.", getpid());
delta_startup_time("initialize threads after fork");
netdata_threads_init_after_fork((size_t)config_get_number(CONFIG_SECTION_GLOBAL, "pthread stack size", (long)default_stacksize));
// initialize internal registry
delta_startup_time("initialize registry");
registry_init();
// fork the spawn server
delta_startup_time("fork the spawn server");
spawn_init();
/*
* Libuv uv_spawn() uses SIGCHLD internally:
* https://github.com/libuv/libuv/blob/cc51217a317e96510fbb284721d5e6bc2af31e33/src/unix/process.c#L485
* and inadvertently replaces the netdata signal handler which was setup during initialization.
* Thusly, we must explicitly restore the signal handler for SIGCHLD.
* Warning: extreme care is needed when mixing and matching POSIX and libuv.
*/
signals_restore_SIGCHLD();
// ------------------------------------------------------------------------
// initialize rrd, registry, health, rrdpush, etc.
delta_startup_time("collecting system info");
netdata_anonymous_statistics_enabled=-1;
struct rrdhost_system_info *system_info = callocz(1, sizeof(struct rrdhost_system_info));
__atomic_sub_fetch(&netdata_buffers_statistics.rrdhost_allocations_size, sizeof(struct rrdhost_system_info), __ATOMIC_RELAXED);
get_system_info(system_info);
(void) registry_get_this_machine_guid();
system_info->hops = 0;
get_install_type(&system_info->install_type, &system_info->prebuilt_arch, &system_info->prebuilt_dist);
delta_startup_time("initialize RRD structures");
if(rrd_init(netdata_configured_hostname, system_info, false)) {
set_late_global_environment(system_info);
fatal("Cannot initialize localhost instance with name '%s'.", netdata_configured_hostname);
}
delta_startup_time("check for incomplete shutdown");
char agent_crash_file[FILENAME_MAX + 1];
char agent_incomplete_shutdown_file[FILENAME_MAX + 1];
snprintfz(agent_incomplete_shutdown_file, FILENAME_MAX, "%s/.agent_incomplete_shutdown", netdata_configured_varlib_dir);
int incomplete_shutdown_detected = (unlink(agent_incomplete_shutdown_file) == 0);
snprintfz(agent_crash_file, FILENAME_MAX, "%s/.agent_crash", netdata_configured_varlib_dir);
int crash_detected = (unlink(agent_crash_file) == 0);
int fd = open(agent_crash_file, O_WRONLY | O_CREAT | O_TRUNC, 444);
if (fd >= 0)
close(fd);
// ------------------------------------------------------------------------
// Claim netdata agent to a cloud endpoint
delta_startup_time("collect claiming info");
if (claiming_pending_arguments)
claim_agent(claiming_pending_arguments, false, NULL);
load_claiming_state();
// ------------------------------------------------------------------------
// enable log flood protection
nd_log_limits_reset();
// Load host labels
delta_startup_time("collect host labels");
reload_host_labels();
// ------------------------------------------------------------------------
// spawn the threads
delta_startup_time("start the static threads");
web_server_config_options();
netdata_zero_metrics_enabled = config_get_boolean_ondemand(CONFIG_SECTION_DB, "enable zero metrics", CONFIG_BOOLEAN_NO);
set_late_global_environment(system_info);
for (i = 0; static_threads[i].name != NULL ; i++) {
struct netdata_static_thread *st = &static_threads[i];
if(st->enabled) {
st->thread = mallocz(sizeof(netdata_thread_t));
netdata_log_debug(D_SYSTEM, "Starting thread %s.", st->name);
netdata_thread_create(st->thread, st->name, NETDATA_THREAD_OPTION_DEFAULT, st->start_routine, st);
}
else
netdata_log_debug(D_SYSTEM, "Not starting thread %s.", st->name);
}
ml_start_threads();
// ------------------------------------------------------------------------
// Initialize netdata agent command serving from cli and signals
delta_startup_time("initialize commands API");
commands_init();
delta_startup_time("ready");
usec_t ready_ut = now_monotonic_usec();
netdata_log_info("NETDATA STARTUP: completed in %llu ms. Enjoy real-time performance monitoring!", (ready_ut - started_ut) / USEC_PER_MS);
netdata_ready = true;
analytics_statistic_t start_statistic = { "START", "-", "-" };
analytics_statistic_send(&start_statistic);
if (crash_detected) {
analytics_statistic_t crash_statistic = { "CRASH", "-", "-" };
analytics_statistic_send(&crash_statistic);
}
if (incomplete_shutdown_detected) {
analytics_statistic_t incomplete_shutdown_statistic = { "INCOMPLETE_SHUTDOWN", "-", "-" };
analytics_statistic_send(&incomplete_shutdown_statistic);
}
//check if ANALYTICS needs to start
if (netdata_anonymous_statistics_enabled == 1) {
for (i = 0; static_threads[i].name != NULL; i++) {
if (!strncmp(static_threads[i].name, "ANALYTICS", 9)) {
struct netdata_static_thread *st = &static_threads[i];
st->thread = mallocz(sizeof(netdata_thread_t));
st->enabled = 1;
netdata_log_debug(D_SYSTEM, "Starting thread %s.", st->name);
netdata_thread_create(st->thread, st->name, NETDATA_THREAD_OPTION_DEFAULT, st->start_routine, st);
}
}
}
// ------------------------------------------------------------------------
// Report ACLK build failure
#ifndef ENABLE_ACLK
netdata_log_error("This agent doesn't have ACLK.");
char filename[FILENAME_MAX + 1];
snprintfz(filename, FILENAME_MAX, "%s/.aclk_report_sent", netdata_configured_varlib_dir);
if (netdata_anonymous_statistics_enabled > 0 && access(filename, F_OK)) { // -1 -> not initialized
analytics_statistic_t statistic = { "ACLK_DISABLED", "-", "-" };
analytics_statistic_send(&statistic);
int fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 444);
if (fd == -1)
netdata_log_error("Cannot create file '%s'. Please fix this.", filename);
else
close(fd);
}
#endif
// ------------------------------------------------------------------------
// initialize WebRTC
webrtc_initialize();
// ------------------------------------------------------------------------
// unblock signals
signals_unblock();
// ------------------------------------------------------------------------
// Handle signals
signals_handle();
// should never reach this point
// but we need it for rpmlint #2752
return 1;
}
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