]> arthur.barton.de Git - netdata.git/blobdiff - src/main.c
added configuration options for controlling web compression level and strategy and...
[netdata.git] / src / main.c
index 71f6ea964bc3f89eb54a6465731601bbdafab452..f11460b5518a587e897afce2621271f75254e4aa 100644 (file)
@@ -49,14 +49,6 @@ void netdata_cleanup_and_exit(int ret)
        // let it log a few more error messages
        error_log_limit_reset();
 
-       if(pidfd != -1) {
-               if(ftruncate(pidfd, 0) != 0)
-                       error("Cannot truncate pidfile '%s'.", pidfile);
-
-               close(pidfd);
-               pidfd = -1;
-       }
-
        if(pidfile[0]) {
                if(unlink(pidfile) != 0)
                        error("Cannot unlink pidfile '%s'.", pidfile);
@@ -78,26 +70,70 @@ struct netdata_static_thread {
 
        void (*init_routine) (void);
        void *(*start_routine) (void *);
-};
-
-struct netdata_static_thread static_threads[] = {
-       {"tc",                  "plugins",      "tc",                   1, NULL, NULL,  tc_main},
-       {"idlejitter",  "plugins",      "idlejitter",   1, NULL, NULL,  cpuidlejitter_main},
-       {"proc",                "plugins",      "proc",                 1, NULL, NULL,  proc_main},
-       {"cgroups",             "plugins",      "cgroups",              1, NULL, NULL,  cgroups_main},
-
+} static_threads[] = {
 #ifdef INTERNAL_PLUGIN_NFACCT
-       // nfacct requires root access
+// 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",              "plugins",  "nfacct",     1, NULL, NULL, nfacct_main},
 #endif
 
-       {"plugins.d",   NULL,           NULL,                   1, NULL, NULL,  pluginsd_main},
-       {"check",               "plugins",      "checks",               0, NULL, NULL,  checks_main},
-       {"web",                 NULL,           NULL,                   1, NULL, NULL,  socket_listen_main},
-       {NULL,                  NULL,           NULL,                   0, NULL, NULL,  NULL}
+       {"tc",                 "plugins",   "tc",         1, NULL, NULL, tc_main},
+       {"idlejitter",         "plugins",   "idlejitter", 1, NULL, NULL, cpuidlejitter_main},
+       {"proc",               "plugins",   "proc",       1, NULL, NULL, proc_main},
+       {"cgroups",            "plugins",   "cgroups",    1, NULL, NULL, cgroups_main},
+       {"plugins.d",           NULL,       NULL,         1, NULL, NULL, pluginsd_main},
+       {"check",               "plugins",  "checks",     0, NULL, NULL, checks_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}
 };
 
+void web_server_threading_selection(void) {
+       int threaded = config_get_boolean("global", "multi threaded web server", 1);
+
+       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;
+
+               if(static_threads[i].start_routine == socket_listen_main_single_threaded)
+                       static_threads[i].enabled = threaded?0:1;
+       }
+
+       web_client_timeout = (int) config_get_number("global", "disconnect idle web clients after seconds", DEFAULT_DISCONNECT_IDLE_WEB_CLIENTS_AFTER_SECONDS);
+
+#ifdef NETDATA_WITH_ZLIB
+       web_enable_gzip = config_get_boolean("global", "enable web responses gzip compression", web_enable_gzip);
+
+       char *s = config_get("global", "web 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 {
+               error("Invalid compression strategy '%s'. Valid strategies are 'default', 'filtered', 'huffman only', 'rle' and 'fixed'. Proceeding with 'default'.");
+               web_gzip_strategy = Z_DEFAULT_STRATEGY;
+       }
+
+       web_gzip_level = (int)config_get_number("global", "web 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 = 1;
+       }
+       else if(web_gzip_level > 9) {
+               error("Invalid compression level %d. Valid levels are 1 (fastest) to 9 (best ratio). Proceeding with level 9 (best compression).");
+               web_gzip_level = 9;
+       }
+#endif /* NETDATA_WITH_ZLIB */
+}
+
+
 int killpid(pid_t pid, int sig)
 {
        int ret = -1;
@@ -201,8 +237,6 @@ struct option_def options[] = {
        {'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"},
-       {'l', "The number of entries the netdata daemon will keep in memory \
-for each chart dimension. Same as 'history config file option.",             "lines_to_save",                        NULL},
        {'u', "System username to run as.",                                      "username",                             "netdata"},
        {'v', "Version of the program",                                          NULL,                                   NULL},
        {'W', "vendor options.",                                                 "stacksize=<size>|unittest|debug_flag", NULL},
@@ -295,6 +329,11 @@ int main(int argc, char **argv)
                                fprintf(stderr, "%s: deprecate 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]);
+                               fprintf(stderr, "%s: deprecate option -- %s -- This option will be rmoved with V2.*.\n", argv[0], argv[i]);
+                               remove_option(i, &argc, argv);
+                       }
                        else i++;
                }
        }
@@ -357,9 +396,6 @@ int main(int argc, char **argv)
                                        printf("netdata 1.1.0\n");
                                        return 0;
                                        break;
-                               case 'l':
-                                       config_set("global", "history", optarg);
-                                       break;
                                case 'W': 
                                        {
                                                char* stacksize = "stacksize=";
@@ -474,7 +510,7 @@ int main(int argc, char **argv)
                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 = config_get_number("global", "errors to trigger flood protection", error_log_errors_per_period);
+               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);
 
                // --------------------------------------------------------------------
@@ -599,28 +635,7 @@ int main(int argc, char **argv)
 
                // --------------------------------------------------------------------
 
-               listen_backlog = (int) config_get_number("global", "http port listen backlog", LISTEN_BACKLOG);
-
-               listen_port = (int) config_get_number("global", "port", LISTEN_PORT);
-               if(listen_port < 1 || listen_port > 65535) {
-                       info("Invalid listen port %d given. Defaulting to %d.", listen_port, LISTEN_PORT);
-                       listen_port = LISTEN_PORT;
-               }
-               else debug(D_OPTIONS, "Listen port set to %d.", listen_port);
-
-               int ip = 0;
-               char *ipv = config_get("global", "ip version", "any");
-               if(!strcmp(ipv, "any") || !strcmp(ipv, "both") || !strcmp(ipv, "all")) ip = 0;
-               else if(!strcmp(ipv, "ipv4") || !strcmp(ipv, "IPV4") || !strcmp(ipv, "IPv4") || !strcmp(ipv, "4")) ip = 4;
-               else if(!strcmp(ipv, "ipv6") || !strcmp(ipv, "IPV6") || !strcmp(ipv, "IPv6") || !strcmp(ipv, "6")) ip = 6;
-               else info("Cannot understand ip version '%s'. Assuming 'any'.", ipv);
-
-               if(ip == 0 || ip == 6) listen_fd = create_listen_socket6(config_get("global", "bind socket to IP", "*"), listen_port, listen_backlog);
-               if(listen_fd < 0) {
-                       listen_fd = create_listen_socket4(config_get("global", "bind socket to IP", "*"), listen_port, listen_backlog);
-                       if(listen_fd >= 0 && ip != 4) info("Managed to open an IPv4 socket on port %d.", listen_port);
-               }
-
+               listen_fd = create_listen_socket();
                if(listen_fd < 0) fatal("Cannot listen socket.");
        }
 
@@ -664,6 +679,8 @@ int main(int argc, char **argv)
        // ------------------------------------------------------------------------
        // spawn the threads
 
+       web_server_threading_selection();
+
        for (i = 0; static_threads[i].name != NULL ; i++) {
                struct netdata_static_thread *st = &static_threads[i];