X-Git-Url: https://arthur.barton.de/gitweb/?a=blobdiff_plain;f=src%2Frrdpush.c;h=72e6d8a737bab8ca32688974b9ed34db1908af6e;hb=9dccc16d3763392f0b13349de18c3a838a667653;hp=5d3e17a06d0fd163753188803c03f0bbe1082afe;hpb=5ead7a7560b2a8e9afbfaf6300ad86374c5c5589;p=netdata.git diff --git a/src/rrdpush.c b/src/rrdpush.c index 5d3e17a0..72e6d8a7 100644 --- a/src/rrdpush.c +++ b/src/rrdpush.c @@ -23,16 +23,19 @@ * */ +#define START_STREAMING_PROMPT "Hit me baby, push them over..." + int default_rrdpush_enabled = 0; -static char *rrdpush_destination = NULL; -static char *rrdpush_api_key = NULL; +char *default_rrdpush_destination = NULL; +char *default_rrdpush_api_key = NULL; int rrdpush_init() { - default_rrdpush_enabled = config_get_boolean(CONFIG_SECTION_STREAM, "enabled", default_rrdpush_enabled); - rrdpush_destination = config_get(CONFIG_SECTION_STREAM, "destination", ""); - rrdpush_api_key = config_get(CONFIG_SECTION_STREAM, "api key", ""); + default_rrdpush_enabled = appconfig_get_boolean(&stream_config, CONFIG_SECTION_STREAM, "enabled", default_rrdpush_enabled); + default_rrdpush_destination = appconfig_get(&stream_config, CONFIG_SECTION_STREAM, "destination", ""); + default_rrdpush_api_key = appconfig_get(&stream_config, CONFIG_SECTION_STREAM, "api key", ""); + rrdhost_free_orphan_time = config_get_number(CONFIG_SECTION_GLOBAL, "cleanup orphan hosts after seconds", rrdhost_free_orphan_time); - if(default_rrdpush_enabled && (!rrdpush_destination || !*rrdpush_destination || !rrdpush_api_key || !*rrdpush_api_key)) { + if(default_rrdpush_enabled && (!default_rrdpush_destination || !*default_rrdpush_destination || !default_rrdpush_api_key || !*default_rrdpush_api_key)) { error("STREAM [send]: cannot enable sending thread - information is missing."); default_rrdpush_enabled = 0; } @@ -56,14 +59,14 @@ int rrdpush_init() { // this is for the first iterations of each chart static unsigned int remote_clock_resync_iterations = 60; -#define rrdpush_lock(host) pthread_mutex_lock(&((host)->rrdpush_mutex)) -#define rrdpush_unlock(host) pthread_mutex_unlock(&((host)->rrdpush_mutex)) +#define rrdpush_lock(host) netdata_mutex_lock(&((host)->rrdpush_mutex)) +#define rrdpush_unlock(host) netdata_mutex_unlock(&((host)->rrdpush_mutex)) // checks if the current chart definition has been sent static inline int need_to_send_chart_definition(RRDSET *st) { RRDDIM *rd; rrddim_foreach_read(rd, st) - if(!rrddim_flag_check(rd, RRDDIM_FLAG_EXPOSED)) + if(!rd->exposed) return 1; return 0; @@ -94,7 +97,7 @@ static inline void send_chart_definition(RRDSET *st) { , rrddim_flag_check(rd, RRDDIM_FLAG_HIDDEN)?"hidden":"" , rrddim_flag_check(rd, RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS)?"noreset":"" ); - rrddim_flag_set(rd, RRDDIM_FLAG_EXPOSED); + rd->exposed = 1; } } @@ -104,7 +107,7 @@ static inline void send_chart_metrics(RRDSET *st) { RRDDIM *rd; rrddim_foreach_read(rd, st) { - if(rrddim_flag_check(rd, RRDDIM_FLAG_UPDATED) && rrddim_flag_check(rd, RRDDIM_FLAG_EXPOSED)) + if(rd->updated && rd->exposed) buffer_sprintf(st->rrdhost->rrdpush_buffer, "SET %s = " COLLECTED_NUMBER_FORMAT "\n" , rd->id , rd->collected_value @@ -172,7 +175,7 @@ static void rrdpush_sender_thread_reset_all_charts(RRDHOST *host) { RRDDIM *rd; rrddim_foreach_read(rd, st) - rrddim_flag_clear(rd, RRDDIM_FLAG_EXPOSED); + rd->exposed = 0; rrdset_unlock(st); } @@ -182,47 +185,55 @@ static void rrdpush_sender_thread_reset_all_charts(RRDHOST *host) { static inline void rrdpush_sender_thread_data_flush(RRDHOST *host) { rrdpush_lock(host); + if(buffer_strlen(host->rrdpush_buffer)) error("STREAM %s [send]: discarding %zu bytes of metrics already in the buffer.", host->hostname, buffer_strlen(host->rrdpush_buffer)); buffer_flush(host->rrdpush_buffer); - rrdpush_sender_thread_reset_all_charts(host); - rrdpush_unlock(host); -} -static inline void rrdpush_sender_thread_lock(RRDHOST *host) { - if(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL) != 0) - error("STREAM %s [send]: cannot set pthread cancel state to DISABLE.", host->hostname); - - rrdpush_lock(host); -} - -static inline void rrdpush_sender_thread_unlock(RRDHOST *host) { - if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0) - error("STREAM %s [send]: cannot set pthread cancel state to DISABLE.", host->hostname); + rrdpush_sender_thread_reset_all_charts(host); rrdpush_unlock(host); } -void rrdpush_sender_thread_cleanup(RRDHOST *host) { - rrdpush_lock(host); - +static void rrdpush_sender_thread_cleanup_locked_all(RRDHOST *host) { host->rrdpush_connected = 0; - if(host->rrdpush_socket != -1) close(host->rrdpush_socket); + if(host->rrdpush_socket != -1) { + close(host->rrdpush_socket); + host->rrdpush_socket = -1; + } // close the pipe - if(host->rrdpush_pipe[PIPE_READ] != -1) close(host->rrdpush_pipe[PIPE_READ]); - if(host->rrdpush_pipe[PIPE_WRITE] != -1) close(host->rrdpush_pipe[PIPE_WRITE]); - host->rrdpush_pipe[PIPE_READ] = -1; - host->rrdpush_pipe[PIPE_WRITE] = -1; + if(host->rrdpush_pipe[PIPE_READ] != -1) { + close(host->rrdpush_pipe[PIPE_READ]); + host->rrdpush_pipe[PIPE_READ] = -1; + } + + if(host->rrdpush_pipe[PIPE_WRITE] != -1) { + close(host->rrdpush_pipe[PIPE_WRITE]); + host->rrdpush_pipe[PIPE_WRITE] = -1; + } buffer_free(host->rrdpush_buffer); host->rrdpush_buffer = NULL; host->rrdpush_spawn = 0; - host->rrdpush_enabled = 0; + rrdhost_flag_set(host, RRDHOST_ORPHAN); +} + +void rrdpush_sender_thread_stop(RRDHOST *host) { + rrdpush_lock(host); + rrdhost_wrlock(host); + + if(host->rrdpush_spawn) { + info("STREAM %s [send]: stopping sending thread...", host->hostname); + pthread_cancel(host->rrdpush_thread); + rrdpush_sender_thread_cleanup_locked_all(host); + } + + rrdhost_unlock(host); rrdpush_unlock(host); } @@ -237,14 +248,14 @@ void *rrdpush_sender_thread(void *ptr) { if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0) error("STREAM %s [send]: cannot set pthread cancel state to ENABLE.", host->hostname); - int timeout = (int)config_get_number(CONFIG_SECTION_STREAM, "timeout seconds", 60); - int default_port = (int)config_get_number(CONFIG_SECTION_STREAM, "default port", 19999); - size_t max_size = (size_t)config_get_number(CONFIG_SECTION_STREAM, "buffer size bytes", 1024 * 1024); - unsigned int reconnect_delay = (unsigned int)config_get_number(CONFIG_SECTION_STREAM, "reconnect delay seconds", 5); - remote_clock_resync_iterations = (unsigned int)config_get_number(CONFIG_SECTION_STREAM, "initial clock resync iterations", remote_clock_resync_iterations); + int timeout = (int)appconfig_get_number(&stream_config, CONFIG_SECTION_STREAM, "timeout seconds", 60); + int default_port = (int)appconfig_get_number(&stream_config, CONFIG_SECTION_STREAM, "default port", 19999); + size_t max_size = (size_t)appconfig_get_number(&stream_config, CONFIG_SECTION_STREAM, "buffer size bytes", 1024 * 1024); + unsigned int reconnect_delay = (unsigned int)appconfig_get_number(&stream_config, CONFIG_SECTION_STREAM, "reconnect delay seconds", 5); + remote_clock_resync_iterations = (unsigned int)appconfig_get_number(&stream_config, CONFIG_SECTION_STREAM, "initial clock resync iterations", remote_clock_resync_iterations); char connected_to[CONNECTED_TO_SIZE + 1] = ""; - if(!host->rrdpush_enabled || !rrdpush_destination || !*rrdpush_destination || !rrdpush_api_key || !*rrdpush_api_key) + if(!host->rrdpush_enabled || !host->rrdpush_destination || !*host->rrdpush_destination || !host->rrdpush_api_key || !*host->rrdpush_api_key) goto cleanup; // initialize rrdpush globals @@ -276,11 +287,11 @@ void *rrdpush_sender_thread(void *ptr) { // they will be lost, so there is no point to do it host->rrdpush_connected = 0; - info("STREAM %s [send to %s]: connecting...", host->hostname, rrdpush_destination); - host->rrdpush_socket = connect_to_one_of(rrdpush_destination, default_port, &tv, &reconnects_counter, connected_to, CONNECTED_TO_SIZE); + info("STREAM %s [send to %s]: connecting...", host->hostname, host->rrdpush_destination); + host->rrdpush_socket = connect_to_one_of(host->rrdpush_destination, default_port, &tv, &reconnects_counter, connected_to, CONNECTED_TO_SIZE); if(unlikely(host->rrdpush_socket == -1)) { - error("STREAM %s [send to %s]: failed to connect", host->hostname, rrdpush_destination); + error("STREAM %s [send to %s]: failed to connect", host->hostname, host->rrdpush_destination); sleep(reconnect_delay); continue; } @@ -292,10 +303,10 @@ void *rrdpush_sender_thread(void *ptr) { "STREAM key=%s&hostname=%s&machine_guid=%s&os=%s&update_every=%d HTTP/1.1\r\n" "User-Agent: netdata-push-service/%s\r\n" "Accept: */*\r\n\r\n" - , rrdpush_api_key - , localhost->hostname - , localhost->machine_guid - , localhost->os + , host->rrdpush_api_key + , host->hostname + , host->machine_guid + , host->os , default_rrd_update_every , program_version ); @@ -318,7 +329,7 @@ void *rrdpush_sender_thread(void *ptr) { continue; } - if(strncmp(http, "STREAM", 6)) { + if(strncmp(http, START_STREAMING_PROMPT, strlen(START_STREAMING_PROMPT))) { close(host->rrdpush_socket); host->rrdpush_socket = -1; error("STREAM %s [send to %s]: server is not replying properly.", host->hostname, connected_to); @@ -378,7 +389,19 @@ void *rrdpush_sender_thread(void *ptr) { } if(ofd->revents & POLLOUT && begin < buffer_strlen(host->rrdpush_buffer)) { - rrdpush_sender_thread_lock(host); + + // BEGIN RRDPUSH LOCKED SESSION + + // during this session, data collectors + // will not be able to append data to our buffer + // but the socket is in non-blocking mode + // so, we will not block at send() + + if(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL) != 0) + error("STREAM %s [send]: cannot set pthread cancel state to DISABLE.", host->hostname); + + rrdpush_lock(host); + ssize_t ret = send(host->rrdpush_socket, &host->rrdpush_buffer->buffer[begin], buffer_strlen(host->rrdpush_buffer) - begin, MSG_DONTWAIT); if(ret == -1) { if(errno != EAGAIN && errno != EINTR) { @@ -392,11 +415,19 @@ void *rrdpush_sender_thread(void *ptr) { sent_bytes += ret; begin += ret; if(begin == buffer_strlen(host->rrdpush_buffer)) { + // we send it all + buffer_flush(host->rrdpush_buffer); begin = 0; } } - rrdpush_sender_thread_unlock(host); + + rrdpush_unlock(host); + + if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0) + error("STREAM %s [send]: cannot set pthread cancel state to ENABLE.", host->hostname); + + // END RRDPUSH LOCKED SESSION } // protection from overflow @@ -413,7 +444,17 @@ void *rrdpush_sender_thread(void *ptr) { cleanup: debug(D_WEB_CLIENT, "STREAM %s [send]: sending thread exits.", host->hostname); - rrdpush_sender_thread_cleanup(host); + if(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL) != 0) + error("STREAM %s [send]: cannot set pthread cancel state to DISABLE.", host->hostname); + + rrdpush_lock(host); + rrdhost_wrlock(host); + rrdpush_sender_thread_cleanup_locked_all(host); + rrdhost_unlock(host); + rrdpush_unlock(host); + + if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0) + error("STREAM %s [send]: cannot set pthread cancel state to ENABLE.", host->hostname); pthread_exit(NULL); return NULL; @@ -428,6 +469,9 @@ int rrdpush_receive(int fd, const char *key, const char *hostname, const char *m int history = default_rrd_history_entries; RRD_MEMORY_MODE mode = default_rrd_memory_mode; int health_enabled = default_health_enabled; + int rrdpush_enabled = default_rrdpush_enabled; + char *rrdpush_destination = default_rrdpush_destination; + char *rrdpush_api_key = default_rrdpush_api_key; time_t alarms_delay = 60; update_every = (int)appconfig_get_number(&stream_config, machine_guid, "update every", update_every); @@ -446,17 +490,39 @@ int rrdpush_receive(int fd, const char *key, const char *hostname, const char *m alarms_delay = appconfig_get_number(&stream_config, key, "default postpone alarms on connect seconds", alarms_delay); alarms_delay = appconfig_get_number(&stream_config, machine_guid, "postpone alarms on connect seconds", alarms_delay); + rrdpush_enabled = appconfig_get_boolean(&stream_config, key, "default proxy enabled", rrdpush_enabled); + rrdpush_enabled = appconfig_get_boolean(&stream_config, machine_guid, "proxy enabled", rrdpush_enabled); + + rrdpush_destination = appconfig_get(&stream_config, key, "default proxy destination", rrdpush_destination); + rrdpush_destination = appconfig_get(&stream_config, machine_guid, "proxy destination", rrdpush_destination); + + rrdpush_api_key = appconfig_get(&stream_config, key, "default proxy api key", rrdpush_api_key); + rrdpush_api_key = appconfig_get(&stream_config, machine_guid, "proxy api key", rrdpush_api_key); + if(!strcmp(machine_guid, "localhost")) host = localhost; else - host = rrdhost_find_or_create(hostname, machine_guid, os, update_every, history, mode, (health_enabled == CONFIG_BOOLEAN_NO)?0:1); + host = rrdhost_find_or_create( + hostname + , machine_guid + , os + , update_every + , history + , mode + , (health_enabled != CONFIG_BOOLEAN_NO) + , (rrdpush_enabled && rrdpush_destination && *rrdpush_destination && rrdpush_api_key && *rrdpush_api_key) + , rrdpush_destination + , rrdpush_api_key + ); if(!host) { + close(fd); error("STREAM %s [receive from [%s]:%s]: failed to find/create host structure.", hostname, client_ip, client_port); return 1; } - info("STREAM %s [receive from [%s]:%s]: metrics for host '%s' with machine_guid '%s': update every = %d, history = %d, memory mode = %s, health %s" +#ifdef NETDATA_INTERNAL_CHECKS + info("STREAM %s [receive from [%s]:%s]: client willing to stream metrics for host '%s' with machine_guid '%s': update every = %d, history = %ld, memory mode = %s, health %s" , hostname , client_ip , client_port @@ -467,6 +533,7 @@ int rrdpush_receive(int fd, const char *key, const char *hostname, const char *m , rrd_memory_mode_name(host->rrd_memory_mode) , (health_enabled == CONFIG_BOOLEAN_NO)?"disabled":((health_enabled == CONFIG_BOOLEAN_YES)?"enabled":"auto") ); +#endif // NETDATA_INTERNAL_CHECKS struct plugind cd = { .enabled = 1, @@ -486,8 +553,9 @@ int rrdpush_receive(int fd, const char *key, const char *hostname, const char *m snprintfz(cd.cmd, PLUGINSD_CMD_MAX, "%s:%s", client_ip, client_port); info("STREAM %s [receive from [%s]:%s]: initializing communication...", host->hostname, client_ip, client_port); - if(send_timeout(fd, "STREAM", 6, 0, 60) != 6) { - error("STREAM %s [receive from [%s]:%s]: cannot send STREAM command.", host->hostname, client_ip, client_port); + if(send_timeout(fd, START_STREAMING_PROMPT, strlen(START_STREAMING_PROMPT), 0, 60) != strlen(START_STREAMING_PROMPT)) { + error("STREAM %s [receive from [%s]:%s]: cannot send ready command.", host->hostname, client_ip, client_port); + close(fd); return 0; } @@ -499,26 +567,32 @@ int rrdpush_receive(int fd, const char *key, const char *hostname, const char *m FILE *fp = fdopen(fd, "r"); if(!fp) { error("STREAM %s [receive from [%s]:%s]: failed to get a FILE for FD %d.", host->hostname, client_ip, client_port, fd); + close(fd); return 0; } rrdhost_wrlock(host); - host->use_counter++; + host->connected_senders++; if(health_enabled != CONFIG_BOOLEAN_NO) host->health_delay_up_to = now_realtime_sec() + alarms_delay; rrdhost_unlock(host); // call the plugins.d processor to receive the metrics - info("STREAM %s [receive from [%s]:%s]: receiving metrics... (host '%s', machine GUID '%s').", host->hostname, client_ip, client_port, host->hostname, host->machine_guid); + info("STREAM %s [receive from [%s]:%s]: receiving metrics...", host->hostname, client_ip, client_port); size_t count = pluginsd_process(host, &cd, fp, 1); - error("STREAM %s [receive from [%s]:%s]: disconnected (host '%s', machine GUID '%s', completed updates %zu).", host->hostname, client_ip, client_port, host->hostname, host->machine_guid, count); + error("STREAM %s [receive from [%s]:%s]: disconnected (completed updates %zu).", host->hostname, client_ip, client_port, count); rrdhost_wrlock(host); - host->use_counter--; - if(!host->use_counter && health_enabled == CONFIG_BOOLEAN_AUTO) - host->health_enabled = 0; + host->senders_disconnected_time = now_realtime_sec(); + host->connected_senders--; + if(!host->connected_senders) { + if(health_enabled == CONFIG_BOOLEAN_AUTO) + host->health_enabled = 0; + } rrdhost_unlock(host); + rrdpush_sender_thread_stop(host); + // cleanup fclose(fp); @@ -550,7 +624,6 @@ void *rrdpush_receiver_thread(void *ptr) { rrdpush_receive(rpt->fd, rpt->key, rpt->hostname, rpt->machine_guid, rpt->os, rpt->update_every, rpt->client_ip, rpt->client_port); info("STREAM %s [receive from [%s]:%s]: receive thread ended (task id %d)", rpt->hostname, rpt->client_ip, rpt->client_port, gettid()); - close(rpt->fd); freez(rpt->key); freez(rpt->hostname); freez(rpt->machine_guid); @@ -563,18 +636,21 @@ void *rrdpush_receiver_thread(void *ptr) { return NULL; } -static inline int rrdpush_receive_validate_api_key(const char *key) { - return appconfig_get_boolean(&stream_config, key, "enabled", 0); -} - void rrdpush_sender_thread_spawn(RRDHOST *host) { - if(pthread_create(&host->rrdpush_thread, NULL, rrdpush_sender_thread, (void *)host)) - error("STREAM %s [send]: failed to create new thread for client.", host->hostname); + rrdhost_wrlock(host); - else if(pthread_detach(host->rrdpush_thread)) - error("STREAM %s [send]: cannot request detach newly created thread.", host->hostname); + if(!host->rrdpush_spawn) { + if(pthread_create(&host->rrdpush_thread, NULL, rrdpush_sender_thread, (void *) host)) + error("STREAM %s [send]: failed to create new thread for client.", host->hostname); - host->rrdpush_spawn = 1; + else if(pthread_detach(host->rrdpush_thread)) + error("STREAM %s [send]: cannot request detach newly created thread.", host->hostname); + + rrdhost_flag_clear(host, RRDHOST_ORPHAN); + host->rrdpush_spawn = 1; + } + + rrdhost_unlock(host); } int rrdpush_receiver_thread_spawn(RRDHOST *host, struct web_client *w, char *url) { @@ -582,8 +658,9 @@ int rrdpush_receiver_thread_spawn(RRDHOST *host, struct web_client *w, char *url info("STREAM [receive from [%s]:%s]: new client connection.", w->client_ip, w->client_port); - char *key = NULL, *hostname = NULL, *machine_guid = NULL, *os = NULL; + char *key = NULL, *hostname = NULL, *machine_guid = NULL, *os = "unknown"; int update_every = default_rrd_update_every; + char buf[GUID_LEN + 1]; while(url) { char *value = mystrsep(&url, "?&"); @@ -626,8 +703,22 @@ int rrdpush_receiver_thread_spawn(RRDHOST *host, struct web_client *w, char *url return 400; } - if(!rrdpush_receive_validate_api_key(key)) { - error("STREAM [receive from [%s]:%s]: API key '%s' is not allowed. Forbidding access.", w->client_ip, w->client_port, key); + if(regenerate_guid(key, buf) == -1) { + error("STREAM [receive from [%s]:%s]: API key '%s' is not valid GUID. Forbidding access.", w->client_ip, w->client_port, key); + buffer_flush(w->response.data); + buffer_sprintf(w->response.data, "Your API key is invalid."); + return 401; + } + + if(regenerate_guid(machine_guid, buf) == -1) { + error("STREAM [receive from [%s]:%s]: machine GUID '%s' is not GUID. Forbidding access.", w->client_ip, w->client_port, key); + buffer_flush(w->response.data); + buffer_sprintf(w->response.data, "Your machine GUID is invalid."); + return 404; + } + + if(!appconfig_get_boolean(&stream_config, key, "enabled", 0)) { + error("STREAM [receive from [%s]:%s]: API key '%s' is not allowed. Forbidding access.", w->client_ip, w->client_port, machine_guid); buffer_flush(w->response.data); buffer_sprintf(w->response.data, "Your API key is not permitted access."); return 401;