debug(D_EXIT, "Called: netdata_cleanup_and_exit()");
// save the database
- rrdset_save_all();
+ rrdhost_save_all();
// unlink the pid
if(pidfile[0]) {
#ifdef NETDATA_INTERNAL_CHECKS
// kill all childs
- kill_childs();
+ //kill_childs();
- // free all memory
- rrdset_free_all();
+ // free database
+ sleep(2);
+ rrdhost_free_all();
#endif
info("netdata exiting. Bye bye...");
#ifdef INTERNAL_PLUGIN_NFACCT
// nfacct requires root access
// so, we build it as an external plugin with setuid to root
- {"nfacct", "plugins", "nfacct", 1, NULL, NULL, nfacct_main},
+ {"nfacct", CONFIG_SECTION_PLUGINS, "nfacct", 1, NULL, NULL, nfacct_main},
#endif
- {"tc", "plugins", "tc", 1, NULL, NULL, tc_main},
- {"idlejitter", "plugins", "idlejitter", 1, NULL, NULL, cpuidlejitter_main},
+ {"tc", CONFIG_SECTION_PLUGINS, "tc", 1, NULL, NULL, tc_main},
+ {"idlejitter", CONFIG_SECTION_PLUGINS, "idlejitter", 1, NULL, NULL, cpuidlejitter_main},
#if defined(__FreeBSD__)
- {"freebsd", "plugins", "freebsd", 1, NULL, NULL, freebsd_main},
+ {"freebsd", CONFIG_SECTION_PLUGINS, "freebsd", 1, NULL, NULL, freebsd_main},
#elif defined(__APPLE__)
- {"macos", "plugins", "macos", 1, NULL, NULL, macos_main},
+ {"macos", CONFIG_SECTION_PLUGINS, "macos", 1, NULL, NULL, macos_main},
#else
- {"proc", "plugins", "proc", 1, NULL, NULL, proc_main},
- {"diskspace", "plugins", "diskspace", 1, NULL, NULL, proc_diskspace_main},
+ {"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},
#endif /* __FreeBSD__, __APPLE__*/
- {"cgroups", "plugins", "cgroups", 1, NULL, NULL, cgroups_main},
- {"check", "plugins", "checks", 0, NULL, NULL, checks_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},
- {NULL, NULL, NULL, 0, NULL, NULL, NULL}
+ {"check", CONFIG_SECTION_PLUGINS, "checks", 0, NULL, NULL, checks_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},
+ {NULL, NULL, NULL, 0, NULL, NULL, NULL}
};
void web_server_threading_selection(void) {
- int threaded = config_get_boolean("global", "multi threaded web server", 1);
+ web_server_mode = web_server_mode_id(config_get(CONFIG_SECTION_WEB, "mode", web_server_mode_name(web_server_mode)));
+
+ int multi_threaded = (web_server_mode == WEB_SERVER_MODE_MULTI_THREADED);
+ int single_threaded = (web_server_mode == WEB_SERVER_MODE_SINGLE_THREADED);
int i;
for(i = 0; static_threads[i].name ; i++) {
if(static_threads[i].start_routine == socket_listen_main_multi_threaded)
- static_threads[i].enabled = threaded?1:0;
+ static_threads[i].enabled = multi_threaded;
if(static_threads[i].start_routine == socket_listen_main_single_threaded)
- static_threads[i].enabled = threaded?0:1;
+ static_threads[i].enabled = single_threaded;
}
- web_client_timeout = (int) config_get_number("global", "disconnect idle web 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", DEFAULT_DISCONNECT_IDLE_WEB_CLIENTS_AFTER_SECONDS);
- web_donotrack_comply = config_get_boolean("global", "respect web browser do not track policy", web_donotrack_comply);
+ 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;
#ifdef NETDATA_WITH_ZLIB
- web_enable_gzip = config_get_boolean("global", "enable web responses gzip compression", web_enable_gzip);
+ web_enable_gzip = config_get_boolean(CONFIG_SECTION_WEB, "enable gzip compression", web_enable_gzip);
- char *s = config_get("global", "web compression strategy", "default");
+ 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_DEFAULT_STRATEGY;
}
- web_gzip_level = (int)config_get_number("global", "web compression level", 3);
+ web_gzip_level = (int)config_get_number(CONFIG_SECTION_WEB, "gzip compression level", 3);
if(web_gzip_level < 1) {
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;
pthread_cancel(w->thread);
// it is detached
// pthread_join(w->thread, NULL);
+
+ w->obsolete = 1;
}
int i;
for (i = 0; static_threads[i].name != NULL ; i++) {
- if(static_threads[i].enabled && static_threads[i].thread) {
+ 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].thread = NULL;
+ static_threads[i].enabled = 0;
}
}
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;
}
- tc_child_pid = 0;
struct plugind *cd;
for(cd = pluginsd_root ; cd ; cd = cd->next) {
if(cd->enabled && !cd->obsolete) {
- if(cd->thread != (pthread_t)NULL) {
- info("Stopping %s plugin thread", cd->id);
- pthread_cancel(cd->thread);
- // they are detached
- // pthread_join(cd->thread, NULL);
- cd->thread = (pthread_t)NULL;
- }
+ info("Stopping %s plugin thread", cd->id);
+ pthread_cancel(cd->thread);
if(cd->pid) {
info("killing %s plugin child process pid %d", cd->id, cd->pid);
}
struct option_def options[] = {
- // opt description arg name default value
- {'c', "Load alternate configuration file", "config_file", CONFIG_DIR "/" CONFIG_FILENAME},
- {'D', "Disable fork into background", NULL, NULL},
- {'h', "Display help message", NULL, NULL},
- {'P', "File to save a pid while running", "FILE", NULL},
- {'i', "The IP address to listen to.", "address", "All addresses"},
- {'k', "Check daemon configuration.", NULL, NULL},
- {'p', "Port to listen. Can be from 1 to 65535.", "port_number", "19999"},
- {'s', "Path to access host /proc and /sys when running in a container.", "PATH", NULL},
- {'t', "The frequency in seconds, for data collection. \
-Same as 'update every' config file option.", "seconds", "1"},
- {'u', "System username to run as.", "username", "netdata"},
- {'v', "Version of the program", NULL, NULL},
- {'W', "vendor options.", "stacksize=N|unittest|debug_flags=N", NULL},
+ // 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"},
+ { '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},
};
void help(int exitcode) {
}
}
- fprintf(stream, "SYNOPSIS: netdata [options]\n");
+ 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) 2016-2017, Costa Tsaousis <costa@tsaousis.gr>\n"
+ " Released under GNU General Public License v3 or later.\n"
+ " All rights reserved.\n"
+ "\n"
+ " Home Page : https://my-netdata.io\n"
+ " Source Code: https://github.com/firehol/netdata\n"
+ " Wiki / Docs: https://github.com/firehol/netdata/wiki\n"
+ " Support : https://github.com/firehol/netdata/issues\n"
+ " License : https://github.com/firehol/netdata/blob/master/LICENSE.md\n"
+ "\n"
+ " Twitter : https://twitter.com/linuxnetdata\n"
+ " Facebook : https://www.facebook.com/linuxnetdata/\n"
+ "\n"
+ " netdata is a https://firehol.org project.\n"
+ "\n"
+ "\n"
+ );
+
+ fprintf(stream, " SYNOPSIS: netdata [options]\n");
fprintf(stream, "\n");
- fprintf(stream, "Options:\n");
+ fprintf(stream, " Options:\n\n");
// Output options description.
for( i = 0; i < num_opts; i++ ) {
fprintf(stream, " -%c %-*s %s", options[i].val, max_len_arg, options[i].arg_name ? options[i].arg_name : "", options[i].description);
if(options[i].default_value) {
- fprintf(stream, " Default: %s\n", options[i].default_value);
+ fprintf(stream, "\n %c %-*s Default: %s\n", ' ', max_len_arg, "", options[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 simple-pattern pattern string\n"
+ " Check if string matches pattern and exit.\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);
exit(exitcode);
}
return dir;
}
-int main(int argc, char **argv)
-{
- char *hostname = "localhost";
- int i, check_config = 0;
+void log_init(void) {
+ char filename[FILENAME_MAX + 1];
+ snprintfz(filename, FILENAME_MAX, "%s/debug.log", netdata_configured_log_dir);
+ stdout_filename = config_get(CONFIG_SECTION_GLOBAL, "debug log", filename);
+
+ snprintfz(filename, FILENAME_MAX, "%s/error.log", netdata_configured_log_dir);
+ stderr_filename = config_get(CONFIG_SECTION_GLOBAL, "error log", filename);
+
+ snprintfz(filename, FILENAME_MAX, "%s/access.log", netdata_configured_log_dir);
+ stdaccess_filename = config_get(CONFIG_SECTION_GLOBAL, "access log", filename);
+
+ error_log_throttle_period_backup =
+ error_log_throttle_period = config_get_number(CONFIG_SECTION_GLOBAL, "errors flood protection period", error_log_throttle_period);
+ error_log_errors_per_period = (unsigned long)config_get_number(CONFIG_SECTION_GLOBAL, "errors to trigger flood protection", (long long int)error_log_errors_per_period);
+
+ setenv("NETDATA_ERRORS_THROTTLE_PERIOD", config_get(CONFIG_SECTION_GLOBAL, "errors flood protection period" , ""), 1);
+ setenv("NETDATA_ERRORS_PER_PERIOD", config_get(CONFIG_SECTION_GLOBAL, "errors to trigger flood protection", ""), 1);
+}
+
+static void backwards_compatible_config() {
+ // allow existing configurations to work with the current version of netdata
+
+ if(config_exists(CONFIG_SECTION_GLOBAL, "multi threaded web server")) {
+ int mode = config_get_boolean(CONFIG_SECTION_GLOBAL, "multi threaded web server", 1);
+ web_server_mode = (mode)?WEB_SERVER_MODE_MULTI_THREADED:WEB_SERVER_MODE_SINGLE_THREADED;
+ }
+
+ // 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, "web files owner",
+ CONFIG_SECTION_WEB, "web files owner");
+
+ config_move(CONFIG_SECTION_GLOBAL, "web files group",
+ CONFIG_SECTION_WEB, "web files group");
+}
+
+static void get_netdata_configured_variables() {
+ backwards_compatible_config();
+
+ // ------------------------------------------------------------------------
+ // get the hostname
+
+ char buf[HOSTNAME_MAX + 1];
+ if(gethostname(buf, HOSTNAME_MAX) == -1)
+ error("Cannot get machine hostname.");
+
+ netdata_configured_hostname = config_get(CONFIG_SECTION_GLOBAL, "hostname", buf);
+ debug(D_OPTIONS, "hostname set to '%s'", netdata_configured_hostname);
+
+ netdata_configured_hostname = config_get(CONFIG_SECTION_GLOBAL, "hostname", CONFIG_DIR);
+
+ // ------------------------------------------------------------------------
+ // get default database size
+
+ default_rrd_history_entries = (int) config_get_number(CONFIG_SECTION_GLOBAL, "history", 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_GLOBAL, "history", h);
+ default_rrd_history_entries = (int)h;
+ }
+
+ if(default_rrd_history_entries < 5 || default_rrd_history_entries > RRD_HISTORY_ENTRIES_MAX) {
+ error("Invalid history entries %d given. Defaulting to %d.", default_rrd_history_entries, RRD_DEFAULT_HISTORY_ENTRIES);
+ default_rrd_history_entries = RRD_DEFAULT_HISTORY_ENTRIES;
+ }
+
+ // ------------------------------------------------------------------------
+ // get default database update frequency
+
+ default_rrd_update_every = (int) config_get_number(CONFIG_SECTION_GLOBAL, "update every", UPDATE_EVERY);
+ if(default_rrd_update_every < 1 || default_rrd_update_every > 600) {
+ error("Invalid data collection frequency (update every) %d given. Defaulting to %d.", default_rrd_update_every, UPDATE_EVERY_MAX);
+ default_rrd_update_every = UPDATE_EVERY;
+ }
+
+ // ------------------------------------------------------------------------
+ // let the plugins know the min update_every
+
+ // get system paths
+ netdata_configured_config_dir = config_get(CONFIG_SECTION_GLOBAL, "config directory", CONFIG_DIR);
+ netdata_configured_log_dir = config_get(CONFIG_SECTION_GLOBAL, "log directory", LOG_DIR);
+ netdata_configured_plugins_dir = config_get(CONFIG_SECTION_GLOBAL, "plugins directory", PLUGINS_DIR);
+ netdata_configured_web_dir = config_get(CONFIG_SECTION_GLOBAL, "web files directory", WEB_DIR);
+ netdata_configured_cache_dir = config_get(CONFIG_SECTION_GLOBAL, "cache directory", CACHE_DIR);
+ netdata_configured_varlib_dir = config_get(CONFIG_SECTION_GLOBAL, "lib directory", VARLIB_DIR);
+ netdata_configured_home_dir = config_get(CONFIG_SECTION_GLOBAL, "home directory", CACHE_DIR);
+
+ // ------------------------------------------------------------------------
+ // get default memory mode for the database
+
+ default_rrd_memory_mode = rrd_memory_mode_id(config_get(CONFIG_SECTION_GLOBAL, "memory mode", rrd_memory_mode_name(default_rrd_memory_mode)));
+
+ // ------------------------------------------------------------------------
+
+ netdata_configured_host_prefix = config_get(CONFIG_SECTION_GLOBAL, "host access prefix", "");
+
+ // --------------------------------------------------------------------
+ // get KSM settings
+
+#ifdef MADV_MERGEABLE
+ enable_ksm = config_get_boolean(CONFIG_SECTION_GLOBAL, "memory deduplication (ksm)", enable_ksm);
+#endif
+
+ // --------------------------------------------------------------------
+ // get various system parameters
+
+ get_system_HZ();
+ get_system_cpus();
+ get_system_pid_max();
+}
+
+void set_global_environment() {
+ {
+ char b[16];
+ snprintfz(b, 15, "%d", default_rrd_update_every);
+ setenv("NETDATA_UPDATE_EVERY", b, 1);
+ }
+
+ setenv("NETDATA_HOSTNAME" , netdata_configured_hostname, 1);
+ setenv("NETDATA_CONFIG_DIR" , verify_required_directory(netdata_configured_config_dir), 1);
+ setenv("NETDATA_PLUGINS_DIR", verify_required_directory(netdata_configured_plugins_dir), 1);
+ setenv("NETDATA_WEB_DIR" , verify_required_directory(netdata_configured_web_dir), 1);
+ setenv("NETDATA_CACHE_DIR" , verify_required_directory(netdata_configured_cache_dir), 1);
+ setenv("NETDATA_LIB_DIR" , verify_required_directory(netdata_configured_varlib_dir), 1);
+ setenv("NETDATA_LOG_DIR" , verify_required_directory(netdata_configured_log_dir), 1);
+ setenv("HOME" , verify_required_directory(netdata_configured_home_dir), 1);
+ setenv("NETDATA_HOST_PREFIX", netdata_configured_host_prefix, 1);
+
+ // avoid flood calls to stat(/etc/localtime)
+ // http://stackoverflow.com/questions/4554271/how-to-avoid-excessive-stat-etc-localtime-calls-in-strftime-on-linux
+ setenv("TZ", ":/etc/localtime", 0);
+
+ // set the path we need
+ char path[1024 + 1], *p = getenv("PATH");
+ if(!p) p = "/bin:/usr/bin";
+ snprintfz(path, 1024, "%s:%s", p, "/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin");
+ setenv("PATH", config_get(CONFIG_SECTION_PLUGINS, "PATH environment variable", path), 1);
+
+ // python options
+ p = getenv("PYTHONPATH");
+ if(!p) p = "";
+ setenv("PYTHONPATH", config_get(CONFIG_SECTION_PLUGINS, "PYTHONPATH environment variable", p), 1);
+
+ // disable buffering for python plugins
+ setenv("PYTHONUNBUFFERED", "1", 1);
+
+ // switch to standard locale for plugins
+ setenv("LC_ALL", "C", 1);
+}
+
+int main(int argc, char **argv) {
+ int i;
int config_loaded = 0;
int dont_fork = 0;
size_t wanted_stacksize = 0, stacksize = 0;
remove_option(i, &argc, argv);
}
else if(strcmp(argv[i], "-ch") == 0 && (i+1) < argc) {
- config_set("global", "host access prefix", argv[i+1]);
+ config_set(CONFIG_SECTION_GLOBAL, "host access prefix", argv[i+1]);
fprintf(stderr, "%s: deprecated option -- %s -- please use -s instead.\n", argv[0], argv[i]);
remove_option(i, &argc, argv);
}
else if(strcmp(argv[i], "-l") == 0 && (i+1) < argc) {
- config_set("global", "history", argv[i+1]);
+ config_set(CONFIG_SECTION_GLOBAL, "history", argv[i+1]);
fprintf(stderr, "%s: deprecated option -- %s -- This option will be removed with V2.*.\n", argv[0], argv[i]);
remove_option(i, &argc, argv);
}
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_config(optarg, 1) != 1) {
+ if(config_load(optarg, 1) != 1) {
error("Cannot load configuration file %s.", optarg);
exit(1);
}
help(0);
break;
case 'i':
- config_set("global", "bind to", optarg);
- break;
- case 'k':
- dont_fork = 1;
- check_config = 1;
+ 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("global", "default port", optarg);
+ config_set(CONFIG_SECTION_GLOBAL, "default port", optarg);
break;
case 's':
- config_set("global", "host access prefix", optarg);
+ config_set(CONFIG_SECTION_GLOBAL, "host access prefix", optarg);
break;
case 't':
- config_set("global", "update every", optarg);
+ config_set(CONFIG_SECTION_GLOBAL, "update every", optarg);
break;
case 'u':
- config_set("global", "run as user", optarg);
+ config_set(CONFIG_SECTION_GLOBAL, "run as user", optarg);
break;
case 'v':
- // TODO: Outsource version to makefile which can compute version from git.
- printf("netdata %s\n", VERSION);
+ case 'V':
+ printf("%s %s\n", program_name, program_version);
return 0;
case 'W':
{
char* stacksize_string = "stacksize=";
char* debug_flags_string = "debug_flags=";
if(strcmp(optarg, "unittest") == 0) {
- rrd_update_every = 1;
+ default_rrd_update_every = 1;
+ default_rrd_memory_mode = RRD_MEMORY_MODE_RAM;
+ if(!config_loaded) config_load(NULL, 0);
+ get_netdata_configured_variables();
+ default_rrd_update_every = 1;
+ default_rrd_memory_mode = RRD_MEMORY_MODE_RAM;
+ default_health_enabled = 0;
+ rrd_init("unittest");
+ default_rrdpush_enabled = 0;
if(run_all_mockup_tests()) exit(1);
if(unit_test_storage()) exit(1);
fprintf(stderr, "\n\nALL TESTS PASSED\n\n");
exit(0);
- } else if(strncmp(optarg, stacksize_string, strlen(stacksize_string)) == 0) {
+ }
+ 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"
+ );
+ exit(1);
+ }
+
+ const char *heystack = argv[optind];
+ const char *needle = argv[optind + 1];
+
+ SIMPLE_PATTERN *p = simple_pattern_create(heystack
+ , SIMPLE_PATTERN_EXACT);
+ int ret = simple_pattern_matches(p, needle);
+ simple_pattern_free(p);
+
+ if(ret) {
+ fprintf(stdout, "RESULT: MATCHED - pattern '%s' matches '%s'\n", heystack, needle);
+ exit(0);
+ }
+ else {
+ fprintf(stdout, "RESULT: NOT MATCHED - pattern '%s' does not match '%s'\n", heystack, needle);
+ exit(1);
+ }
+ }
+ else if(strncmp(optarg, stacksize_string, strlen(stacksize_string)) == 0) {
optarg += strlen(stacksize_string);
- config_set("global", "pthread stack size", optarg);
- } else if(strncmp(optarg, debug_flags_string, strlen(debug_flags_string)) == 0) {
+ 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("global", "debug flags", optarg);
+ config_set(CONFIG_SECTION_GLOBAL, "debug flags", optarg);
debug_flags = strtoull(optarg, NULL, 0);
}
}
}
}
+#ifdef _SC_OPEN_MAX
+ // close all open file descriptors, except the standard ones
+ // the caller may have left open files (lxc-attach has this issue)
+ {
+ int fd;
+ for(fd = (int) (sysconf(_SC_OPEN_MAX) - 1); fd > 2; fd--)
+ if(fd_is_valid(fd)) close(fd);
+ }
+#endif
+
if(!config_loaded)
- load_config(NULL, 0);
+ config_load(NULL, 0);
+ // ------------------------------------------------------------------------
+ // initialize netdata
{
- char *pmax = config_get("global", "glibc malloc arena max for plugins", "1");
+ 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)
- int i = config_get_number("global", "glibc malloc arena max for netdata", 1);
+ i = (int)config_get_number(CONFIG_SECTION_GLOBAL, "glibc malloc arena max for netdata", 1);
if(i > 0)
mallopt(M_ARENA_MAX, 1);
#endif
- char *config_dir = config_get("global", "config directory", CONFIG_DIR);
-
// prepare configuration environment variables for the plugins
- setenv("NETDATA_CONFIG_DIR" , verify_required_directory(config_dir) , 1);
- setenv("NETDATA_PLUGINS_DIR", verify_required_directory(config_get("global", "plugins directory" , PLUGINS_DIR)), 1);
- setenv("NETDATA_WEB_DIR" , verify_required_directory(config_get("global", "web files directory", WEB_DIR)) , 1);
- setenv("NETDATA_CACHE_DIR" , verify_required_directory(config_get("global", "cache directory" , CACHE_DIR)) , 1);
- setenv("NETDATA_LIB_DIR" , verify_required_directory(config_get("global", "lib directory" , VARLIB_DIR)) , 1);
- setenv("NETDATA_LOG_DIR" , verify_required_directory(config_get("global", "log directory" , LOG_DIR)) , 1);
-
- setenv("NETDATA_HOST_PREFIX", config_get("global", "host access prefix" , "") , 1);
- setenv("HOME" , config_get("global", "home directory" , CACHE_DIR) , 1);
- // disable buffering for python plugins
- setenv("PYTHONUNBUFFERED", "1", 1);
-
- // avoid flood calls to stat(/etc/localtime)
- // http://stackoverflow.com/questions/4554271/how-to-avoid-excessive-stat-etc-localtime-calls-in-strftime-on-linux
- setenv("TZ", ":/etc/localtime", 0);
+ 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(config_dir) == -1)
- fatal("Cannot cd to '%s'", config_dir);
-
- char path[1024 + 1], *p = getenv("PATH");
- if(!p) p = "/bin:/usr/bin";
- snprintfz(path, 1024, "%s:%s", p, "/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin");
- setenv("PATH", config_get("plugins", "PATH environment variable", path), 1);
+ if(chdir(netdata_configured_config_dir) == -1)
+ fatal("Cannot cd to '%s'", netdata_configured_config_dir);
}
char *user = NULL;
+
{
- char *flags = config_get("global", "debug flags", "0x00000000");
+ // --------------------------------------------------------------------
+ // get the debugging flags from the configuration file
+
+ char *flags = config_get(CONFIG_SECTION_GLOBAL, "debug flags", "0x0000000000000000");
setenv("NETDATA_DEBUG_FLAGS", flags, 1);
debug_flags = strtoull(flags, NULL, 0);
- debug(D_OPTIONS, "Debug flags set to '0x%8llx'.", debug_flags);
+ 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)
error("Cannot request unlimited core dumps for debugging... Proceeding anyway...");
-#if !(defined(__FreeBSD__) || defined(__APPLE__))
+#ifdef HAVE_SYS_PRCTL_H
prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
-#endif /* __FreeBSD__ || __APPLE__*/
- }
-
- // --------------------------------------------------------------------
-
-#ifdef MADV_MERGEABLE
- enable_ksm = config_get_boolean("global", "memory deduplication (ksm)", enable_ksm);
-#else
-#warning "Kernel memory deduplication (KSM) is not available"
#endif
+ }
- // --------------------------------------------------------------------
-
- global_host_prefix = config_get("global", "host access prefix", "");
- setenv("NETDATA_HOST_PREFIX", global_host_prefix, 1);
- get_system_HZ();
- get_system_cpus();
- get_system_pid_max();
-
// --------------------------------------------------------------------
+ // get log filenames and settings
- stdout_filename = config_get("global", "debug log", LOG_DIR "/debug.log");
- stderr_filename = config_get("global", "error log", LOG_DIR "/error.log");
- stdaccess_filename = config_get("global", "access log", LOG_DIR "/access.log");
-
- error_log_throttle_period_backup =
- error_log_throttle_period = config_get_number("global", "errors flood protection period", error_log_throttle_period);
- setenv("NETDATA_ERRORS_THROTTLE_PERIOD", config_get("global", "errors flood protection period" , ""), 1);
-
- error_log_errors_per_period = (unsigned long)config_get_number("global", "errors to trigger flood protection", error_log_errors_per_period);
- setenv("NETDATA_ERRORS_PER_PERIOD" , config_get("global", "errors to trigger flood protection", ""), 1);
-
- if(check_config) {
- stdout_filename = stderr_filename = stdaccess_filename = "system";
- error_log_throttle_period = 0;
- error_log_errors_per_period = 0;
- }
+ log_init();
error_log_limit_unlimited();
- // --------------------------------------------------------------------
-
- rrd_memory_mode = rrd_memory_mode_id(config_get("global", "memory mode", rrd_memory_mode_name(rrd_memory_mode)));
// --------------------------------------------------------------------
-
+ // load stream.conf
{
- char hostnamebuf[HOSTNAME_MAX + 1];
- if(gethostname(hostnamebuf, HOSTNAME_MAX) == -1)
- error("WARNING: Cannot get machine hostname.");
- hostname = config_get("global", "hostname", hostnamebuf);
- debug(D_OPTIONS, "hostname set to '%s'", hostname);
- setenv("NETDATA_HOSTNAME", hostname, 1);
+ char filename[FILENAME_MAX + 1];
+ snprintfz(filename, FILENAME_MAX, "%s/stream.conf", netdata_configured_config_dir);
+ appconfig_load(&stream_config, filename, 0);
}
- // --------------------------------------------------------------------
-
- rrd_default_history_entries = (int) config_get_number("global", "history", RRD_DEFAULT_HISTORY_ENTRIES);
- if(rrd_default_history_entries < 5 || rrd_default_history_entries > RRD_HISTORY_ENTRIES_MAX) {
- error("Invalid history entries %d given. Defaulting to %d.", rrd_default_history_entries, RRD_DEFAULT_HISTORY_ENTRIES);
- rrd_default_history_entries = RRD_DEFAULT_HISTORY_ENTRIES;
- }
- else {
- debug(D_OPTIONS, "save lines set to %d.", rrd_default_history_entries);
- }
-
- // --------------------------------------------------------------------
-
- rrd_update_every = (int) config_get_number("global", "update every", UPDATE_EVERY);
- if(rrd_update_every < 1 || rrd_update_every > 600) {
- error("Invalid data collection frequency (update every) %d given. Defaulting to %d.", rrd_update_every, UPDATE_EVERY_MAX);
- rrd_update_every = UPDATE_EVERY;
- }
- else debug(D_OPTIONS, "update timer set to %d.", rrd_update_every);
-
- // let the plugins know the min update_every
- {
- char buf[16];
- snprintfz(buf, 15, "%d", rrd_update_every);
- setenv("NETDATA_UPDATE_EVERY", buf, 1);
- }
// --------------------------------------------------------------------
+ // setup process signals
// block signals while initializing threads.
// this causes the threads to block signals.
if(sigaction(SIGUSR2, &sa, NULL) == -1)
error("Failed to change signal handler for SIGUSR2");
+
// --------------------------------------------------------------------
+ // get the required stack size of the threads of netdata
i = pthread_attr_init(&attr);
if(i != 0)
else
debug(D_OPTIONS, "initial pthread stack size is %zu bytes", stacksize);
- wanted_stacksize = (size_t)config_get_number("global", "pthread stack size", (long)stacksize);
+ wanted_stacksize = (size_t)config_get_number(CONFIG_SECTION_GLOBAL, "pthread stack size", (long)stacksize);
+
// --------------------------------------------------------------------
+ // check which threads are enabled and initialize them
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->config_name)
+ st->enabled = config_get_boolean(st->config_section, st->config_name, st->enabled);
+
+ if(st->enabled && st->init_routine)
+ st->init_routine();
}
- // --------------------------------------------------------------------
+ // --------------------------------------------------------------------
// get the user we should run
+
// IMPORTANT: this is required before web_files_uid()
- user = config_get("global", "run as user" , (getuid() == 0)?NETDATA_USER:"");
+ 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:"");
+ }
// IMPORTANT: these have to run once, while single threaded
web_files_uid(); // IMPORTANT: web_files_uid() before web_files_gid()
web_files_gid();
+
// --------------------------------------------------------------------
+ // create the listening sockets
- if(!check_config)
+ if(web_server_mode != WEB_SERVER_MODE_NONE)
create_listen_sockets();
}
struct rlimit rl = { RLIM_INFINITY, RLIM_INFINITY };
if(setrlimit(RLIMIT_CORE, &rl) != 0)
error("Cannot request unlimited core dumps for debugging... Proceeding anyway...");
-#if !(defined(__FreeBSD__) || defined(__APPLE__))
+#ifdef HAVE_SYS_PRCTL_H
prctl(PR_SET_DUMPABLE, 1, 0, 0, 0);
-#endif /* __FreeBSD__ || __APPLE__*/
+#endif
}
#endif /* NETDATA_INTERNAL_CHECKS */
+
// fork, switch user, create pid file, set process priority
if(become_daemon(dont_fork, user) == -1)
fatal("Cannot daemonize myself.");
info("netdata started on pid %d.", getpid());
+
// ------------------------------------------------------------------------
- // get default pthread stack size
+ // set default pthread stack size - after we have forked
if(stacksize < wanted_stacksize) {
i = pthread_attr_setstacksize(&attr, wanted_stacksize);
debug(D_SYSTEM, "Successfully set pthread stacksize to %zu bytes", wanted_stacksize);
}
- // ------------------------------------------------------------------------
- // initialize rrd host
-
- rrdhost_init(hostname);
-
- // ------------------------------------------------------------------------
- // initialize the registry
-
- registry_init();
// ------------------------------------------------------------------------
- // initialize health monitoring
+ // initialize rrd, registry, health, rrdpush, etc.
- health_init();
+ rrd_init(netdata_configured_hostname);
- if(check_config)
- exit(1);
// ------------------------------------------------------------------------
// enable log flood protection
error_log_limit_reset();
+
// ------------------------------------------------------------------------
// spawn the threads
info("netdata initialization completed. Enjoy real-time performance monitoring!");
+
// ------------------------------------------------------------------------
// block signals while initializing threads.
sigset_t sigset;
projects / netdata.git / blobdiff