*
*/
+#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;
}
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;
, 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;
}
}
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
RRDDIM *rd;
rrddim_foreach_read(rd, st)
- rrddim_flag_clear(rd, RRDDIM_FLAG_EXPOSED);
+ rd->exposed = 0;
rrdset_unlock(st);
}
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);
}
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
// 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;
}
"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
);
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);
}
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) {
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
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;
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);
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?1:0);
+ 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
+ );
- 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"
- , host->hostname
+ if(!host) {
+ close(fd);
+ error("STREAM %s [receive from [%s]:%s]: failed to find/create host structure.", hostname, client_ip, client_port);
+ return 1;
+ }
+
+#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 = %d, memory mode = %s, health %s"
+ , hostname
, client_ip
, client_port
- , hostname
- , machine_guid
- , update_every
- , history
- , rrd_memory_mode_name(mode)
+ , host->hostname
+ , host->machine_guid
+ , host->rrd_update_every
+ , host->rrd_history_entries
+ , 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,
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;
}
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->connected_senders--;
+ if(!host->connected_senders) {
+ if(health_enabled == CONFIG_BOOLEAN_AUTO)
+ host->health_enabled = 0;
+
+ host->senders_disconnected_time = now_realtime_sec();
+ }
rrdhost_unlock(host);
+ rrdpush_sender_thread_stop(host);
+
// cleanup
fclose(fp);
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);
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);
+
+ 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);
- else if(pthread_detach(host->rrdpush_thread))
- error("STREAM %s [send]: cannot request detach newly created thread.", host->hostname);
+ 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;
+ }
- host->rrdpush_spawn = 1;
+ rrdhost_unlock(host);
}
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, "?&");
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;
projects / netdata.git / blobdiff