diff options
Diffstat (limited to 'src/backends.c')
| -rw-r--r-- | src/backends.c | 311 |
1 files changed, 222 insertions, 89 deletions
diff --git a/src/backends.c b/src/backends.c index 3e385cab..eed4ab40 100644 --- a/src/backends.c +++ b/src/backends.c @@ -22,47 +22,81 @@ // 5. repeats the above forever. // -#define BACKEND_SOURCE_DATA_AS_COLLECTED 0x00000001 -#define BACKEND_SOURCE_DATA_AVERAGE 0x00000002 -#define BACKEND_SOURCE_DATA_SUM 0x00000004 - +const char *backend_prefix = "netdata"; +int backend_send_names = 1; +int backend_update_every = 10; +uint32_t backend_options = BACKEND_SOURCE_DATA_AVERAGE; // ---------------------------------------------------------------------------- // helper functions for backends +static inline size_t backend_name_copy(char *d, const char *s, size_t usable) { + size_t n; + + for(n = 0; *s && n < usable ; d++, s++, n++) { + char c = *s; + + if(c != '.' && !isalnum(c)) *d = '_'; + else *d = c; + } + *d = '\0'; + + return n; +} + // calculate the SUM or AVERAGE of a dimension, for any timeframe // may return NAN if the database does not have any value in the give timeframe -static inline calculated_number backend_calculate_value_from_stored_data( +inline calculated_number backend_calculate_value_from_stored_data( RRDSET *st // the chart , RRDDIM *rd // the dimension , time_t after // the start timestamp , time_t before // the end timestamp , uint32_t options // BACKEND_SOURCE_* bitmap + , time_t *first_timestamp // the first point of the database used in this response + , time_t *last_timestamp // the timestamp that should be reported to backend ) { // find the edges of the rrd database for this chart time_t first_t = rrdset_first_entry_t(st); time_t last_t = rrdset_last_entry_t(st); + time_t update_every = st->update_every; - if(unlikely(before < first_t || after > last_t)) - // the chart has not been updated in the wanted timeframe - return NAN; + // step back a little, to make sure we have complete data collection + // for all metrics + after -= update_every * 2; + before -= update_every * 2; // align the time-frame - // for 'after' also skip the first value by adding st->update_every - after = after - after % st->update_every + st->update_every; - before = before - before % st->update_every; + after = after - (after % update_every); + before = before - (before % update_every); - if(unlikely(after < first_t)) - after = first_t; + // for before, loose another iteration + // the latest point will be reported the next time + before -= update_every; if(unlikely(after > before)) - // this can happen when st->update_every > before - after - before = after; + // this can happen when update_every > before - after + after = before; + + if(unlikely(after < first_t)) + after = first_t; if(unlikely(before > last_t)) before = last_t; + if(unlikely(before < first_t || after > last_t)) { + // the chart has not been updated in the wanted timeframe + debug(D_BACKEND, "BACKEND: %s.%s.%s: aligned timeframe %lu to %lu is outside the chart's database range %lu to %lu", + st->rrdhost->hostname, st->id, rd->id, + (unsigned long)after, (unsigned long)before, + (unsigned long)first_t, (unsigned long)last_t + ); + return NAN; + } + + *first_timestamp = after; + *last_timestamp = before; + size_t counter = 0; calculated_number sum = 0; @@ -88,10 +122,15 @@ static inline calculated_number backend_calculate_value_from_stored_data( counter++; } - if(unlikely(!counter)) + if(unlikely(!counter)) { + debug(D_BACKEND, "BACKEND: %s.%s.%s: no values stored in database for range %lu to %lu", + st->rrdhost->hostname, st->id, rd->id, + (unsigned long)after, (unsigned long)before + ); return NAN; + } - if(unlikely(options & BACKEND_SOURCE_DATA_SUM)) + if(unlikely((options & BACKEND_SOURCE_BITS) == BACKEND_SOURCE_DATA_SUM)) return sum; return sum / (calculated_number)counter; @@ -113,7 +152,7 @@ static inline int discard_response(BUFFER *b, const char *backend) { } *d = '\0'; - info("Received %zu bytes from %s backend. Ignoring them. Sample: '%s'", buffer_strlen(b), backend, sample); + info("BACKEND: received %zu bytes from %s backend. Ignoring them. Sample: '%s'", buffer_strlen(b), backend, sample); buffer_flush(b); return 0; } @@ -138,13 +177,18 @@ static inline int format_dimension_collected_graphite_plaintext( (void)before; (void)options; + char chart_name[RRD_ID_LENGTH_MAX + 1]; + char dimension_name[RRD_ID_LENGTH_MAX + 1]; + backend_name_copy(chart_name, (backend_send_names && st->name)?st->name:st->id, RRD_ID_LENGTH_MAX); + backend_name_copy(dimension_name, (backend_send_names && rd->name)?rd->name:rd->id, RRD_ID_LENGTH_MAX); + buffer_sprintf( b , "%s.%s.%s.%s " COLLECTED_NUMBER_FORMAT " %u\n" , prefix , hostname - , st->id - , rd->id + , chart_name + , dimension_name , rd->last_collected_value , (uint32_t)rd->last_collected_time.tv_sec ); @@ -165,7 +209,13 @@ static inline int format_dimension_stored_graphite_plaintext( ) { (void)host; - calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, options); + char chart_name[RRD_ID_LENGTH_MAX + 1]; + char dimension_name[RRD_ID_LENGTH_MAX + 1]; + backend_name_copy(chart_name, (backend_send_names && st->name)?st->name:st->id, RRD_ID_LENGTH_MAX); + backend_name_copy(dimension_name, (backend_send_names && rd->name)?rd->name:rd->id, RRD_ID_LENGTH_MAX); + + time_t first_t = after, last_t = before; + calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, options, &first_t, &last_t); if(!isnan(value)) { @@ -174,10 +224,10 @@ static inline int format_dimension_stored_graphite_plaintext( , "%s.%s.%s.%s " CALCULATED_NUMBER_FORMAT " %u\n" , prefix , hostname - , st->id - , rd->id + , chart_name + , dimension_name , value - , (uint32_t) before + , (uint32_t) last_t ); return 1; @@ -209,15 +259,22 @@ static inline int format_dimension_collected_opentsdb_telnet( (void)before; (void)options; + char chart_name[RRD_ID_LENGTH_MAX + 1]; + char dimension_name[RRD_ID_LENGTH_MAX + 1]; + backend_name_copy(chart_name, (backend_send_names && st->name)?st->name:st->id, RRD_ID_LENGTH_MAX); + backend_name_copy(dimension_name, (backend_send_names && rd->name)?rd->name:rd->id, RRD_ID_LENGTH_MAX); + buffer_sprintf( b - , "put %s.%s.%s %u " COLLECTED_NUMBER_FORMAT " host=%s\n" + , "put %s.%s.%s %u " COLLECTED_NUMBER_FORMAT " host=%s%s%s\n" , prefix - , st->id - , rd->id + , chart_name + , dimension_name , (uint32_t)rd->last_collected_time.tv_sec , rd->last_collected_value , hostname + , (host->tags)?" ":"" + , (host->tags)?host->tags:"" ); return 1; @@ -236,19 +293,27 @@ static inline int format_dimension_stored_opentsdb_telnet( ) { (void)host; - calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, options); + time_t first_t = after, last_t = before; + calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, options, &first_t, &last_t); + + char chart_name[RRD_ID_LENGTH_MAX + 1]; + char dimension_name[RRD_ID_LENGTH_MAX + 1]; + backend_name_copy(chart_name, (backend_send_names && st->name)?st->name:st->id, RRD_ID_LENGTH_MAX); + backend_name_copy(dimension_name, (backend_send_names && rd->name)?rd->name:rd->id, RRD_ID_LENGTH_MAX); if(!isnan(value)) { buffer_sprintf( b - , "put %s.%s.%s %u " CALCULATED_NUMBER_FORMAT " host=%s\n" + , "put %s.%s.%s %u " CALCULATED_NUMBER_FORMAT " host=%s%s%s\n" , prefix - , st->id - , rd->id - , (uint32_t) before + , chart_name + , dimension_name + , (uint32_t) last_t , value , hostname + , (host->tags)?" ":"" + , (host->tags)?host->tags:"" ); return 1; @@ -329,7 +394,8 @@ static inline int format_dimension_stored_json_plaintext( ) { (void)host; - calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, options); + time_t first_t = after, last_t = before; + calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, options, &first_t, &last_t); if(!isnan(value)) { buffer_sprintf(b, "{" @@ -362,7 +428,7 @@ static inline int format_dimension_stored_json_plaintext( rd->name, value, - (uint32_t)before + (uint32_t) last_t ); return 1; @@ -378,6 +444,56 @@ static inline int process_json_response(BUFFER *b) { // ---------------------------------------------------------------------------- // the backend thread +static SIMPLE_PATTERN *charts_pattern = NULL; + +inline int backends_can_send_rrdset(uint32_t options, RRDSET *st) { + if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_BACKEND_IGNORE))) + return 0; + + if(unlikely(!rrdset_flag_check(st, RRDSET_FLAG_BACKEND_SEND))) { + // we have not checked this chart + if(simple_pattern_matches(charts_pattern, st->id) || simple_pattern_matches(charts_pattern, st->name)) + rrdset_flag_set(st, RRDSET_FLAG_BACKEND_SEND); + else { + rrdset_flag_set(st, RRDSET_FLAG_BACKEND_IGNORE); + debug(D_BACKEND, "BACKEND: not sending chart '%s' of host '%s', because it is disabled for backends.", st->id, st->rrdhost->hostname); + return 0; + } + } + + if(unlikely(!rrdset_is_available_for_backends(st))) { + debug(D_BACKEND, "BACKEND: not sending chart '%s' of host '%s', because it is not available for backends.", st->id, st->rrdhost->hostname); + return 0; + } + + if(unlikely(st->rrd_memory_mode == RRD_MEMORY_MODE_NONE && !((options & BACKEND_SOURCE_BITS) == BACKEND_SOURCE_DATA_AS_COLLECTED))) { + debug(D_BACKEND, "BACKEND: not sending chart '%s' of host '%s' because its memory mode is '%s' and the backend requires database access.", st->id, st->rrdhost->hostname, rrd_memory_mode_name(st->rrdhost->rrd_memory_mode)); + return 0; + } + + return 1; +} + +inline uint32_t backend_parse_data_source(const char *source, uint32_t mode) { + if(!strcmp(source, "raw") || !strcmp(source, "as collected") || !strcmp(source, "as-collected") || !strcmp(source, "as_collected") || !strcmp(source, "ascollected")) { + mode |= BACKEND_SOURCE_DATA_AS_COLLECTED; + mode &= ~(BACKEND_SOURCE_BITS ^ BACKEND_SOURCE_DATA_AS_COLLECTED); + } + else if(!strcmp(source, "average")) { + mode |= BACKEND_SOURCE_DATA_AVERAGE; + mode &= ~(BACKEND_SOURCE_BITS ^ BACKEND_SOURCE_DATA_AVERAGE); + } + else if(!strcmp(source, "sum") || !strcmp(source, "volume")) { + mode |= BACKEND_SOURCE_DATA_SUM; + mode &= ~(BACKEND_SOURCE_BITS ^ BACKEND_SOURCE_DATA_SUM); + } + else { + error("BACKEND: invalid data source method '%s'.", source); + } + + return mode; +} + void *backends_main(void *ptr) { int default_port = 0; int sock = -1; @@ -387,13 +503,13 @@ void *backends_main(void *ptr) { int (*backend_request_formatter)(BUFFER *, const char *, RRDHOST *, const char *, RRDSET *, RRDDIM *, time_t, time_t, uint32_t) = NULL; int (*backend_response_checker)(BUFFER *) = NULL; - info("BACKEND thread created with task id %d", gettid()); + info("BACKEND: thread created with task id %d", gettid()); if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0) - error("Cannot set pthread cancel type to DEFERRED."); + error("BACKEND: cannot set pthread cancel type to DEFERRED."); if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0) - error("Cannot set pthread cancel state to ENABLE."); + error("BACKEND: cannot set pthread cancel state to ENABLE."); // ------------------------------------------------------------------------ // collect configuration options @@ -402,45 +518,35 @@ void *backends_main(void *ptr) { .tv_sec = 0, .tv_usec = 0 }; - uint32_t options; int enabled = config_get_boolean(CONFIG_SECTION_BACKEND, "enabled", 0); const char *source = config_get(CONFIG_SECTION_BACKEND, "data source", "average"); const char *type = config_get(CONFIG_SECTION_BACKEND, "type", "graphite"); const char *destination = config_get(CONFIG_SECTION_BACKEND, "destination", "localhost"); - const char *prefix = config_get(CONFIG_SECTION_BACKEND, "prefix", "netdata"); + backend_prefix = config_get(CONFIG_SECTION_BACKEND, "prefix", "netdata"); const char *hostname = config_get(CONFIG_SECTION_BACKEND, "hostname", localhost->hostname); - int frequency = (int)config_get_number(CONFIG_SECTION_BACKEND, "update every", 10); + backend_update_every = (int)config_get_number(CONFIG_SECTION_BACKEND, "update every", backend_update_every); int buffer_on_failures = (int)config_get_number(CONFIG_SECTION_BACKEND, "buffer on failures", 10); - long timeoutms = config_get_number(CONFIG_SECTION_BACKEND, "timeout ms", frequency * 2 * 1000); + long timeoutms = config_get_number(CONFIG_SECTION_BACKEND, "timeout ms", backend_update_every * 2 * 1000); + backend_send_names = config_get_boolean(CONFIG_SECTION_BACKEND, "send names instead of ids", backend_send_names); + + charts_pattern = simple_pattern_create(config_get(CONFIG_SECTION_BACKEND, "send charts matching", "*"), SIMPLE_PATTERN_EXACT); + // ------------------------------------------------------------------------ // validate configuration options // and prepare for sending data to our backend - if(!enabled || frequency < 1) - goto cleanup; - - if(!strcmp(source, "as collected")) { - options = BACKEND_SOURCE_DATA_AS_COLLECTED; - } - else if(!strcmp(source, "average")) { - options = BACKEND_SOURCE_DATA_AVERAGE; - } - else if(!strcmp(source, "sum") || !strcmp(source, "volume")) { - options = BACKEND_SOURCE_DATA_SUM; - } - else { - error("Invalid data source method '%s' for backend given. Disabling backed.", source); - goto cleanup; - } + backend_options = backend_parse_data_source(source, backend_options); if(timeoutms < 1) { - error("BACKED invalid timeout %ld ms given. Assuming %d ms.", timeoutms, frequency * 2 * 1000); - timeoutms = frequency * 2 * 1000; + error("BACKEND: invalid timeout %ld ms given. Assuming %d ms.", timeoutms, backend_update_every * 2 * 1000); + timeoutms = backend_update_every * 2 * 1000; } timeout.tv_sec = (timeoutms * 1000) / 1000000; timeout.tv_usec = (timeoutms * 1000) % 1000000; + if(!enabled || backend_update_every < 1) + goto cleanup; // ------------------------------------------------------------------------ // select the backend type @@ -450,7 +556,7 @@ void *backends_main(void *ptr) { default_port = 2003; backend_response_checker = process_graphite_response; - if(options == BACKEND_SOURCE_DATA_AS_COLLECTED) + if((backend_options & BACKEND_SOURCE_BITS) == BACKEND_SOURCE_DATA_AS_COLLECTED) backend_request_formatter = format_dimension_collected_graphite_plaintext; else backend_request_formatter = format_dimension_stored_graphite_plaintext; @@ -461,7 +567,7 @@ void *backends_main(void *ptr) { default_port = 4242; backend_response_checker = process_opentsdb_response; - if(options == BACKEND_SOURCE_DATA_AS_COLLECTED) + if((backend_options & BACKEND_SOURCE_BITS) == BACKEND_SOURCE_DATA_AS_COLLECTED) backend_request_formatter = format_dimension_collected_opentsdb_telnet; else backend_request_formatter = format_dimension_stored_opentsdb_telnet; @@ -472,19 +578,19 @@ void *backends_main(void *ptr) { default_port = 5448; backend_response_checker = process_json_response; - if (options == BACKEND_SOURCE_DATA_AS_COLLECTED) + if ((backend_options & BACKEND_SOURCE_BITS) == BACKEND_SOURCE_DATA_AS_COLLECTED) backend_request_formatter = format_dimension_collected_json_plaintext; else backend_request_formatter = format_dimension_stored_json_plaintext; } else { - error("Unknown backend type '%s'", type); + error("BACKEND: Unknown backend type '%s'", type); goto cleanup; } if(backend_request_formatter == NULL || backend_response_checker == NULL) { - error("backend is misconfigured - disabling it."); + error("BACKEND: backend is misconfigured - disabling it."); goto cleanup; } @@ -509,18 +615,18 @@ void *backends_main(void *ptr) { chart_backend_reconnects = 0, chart_backend_latency = 0; - RRDSET *chart_metrics = rrdset_create_localhost("netdata", "backend_metrics", NULL, "backend", NULL, "Netdata Buffered Metrics", "metrics", 130600, frequency, RRDSET_TYPE_LINE); + RRDSET *chart_metrics = rrdset_create_localhost("netdata", "backend_metrics", NULL, "backend", NULL, "Netdata Buffered Metrics", "metrics", 130600, backend_update_every, RRDSET_TYPE_LINE); rrddim_add(chart_metrics, "buffered", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); rrddim_add(chart_metrics, "lost", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); rrddim_add(chart_metrics, "sent", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); - RRDSET *chart_bytes = rrdset_create_localhost("netdata", "backend_bytes", NULL, "backend", NULL, "Netdata Backend Data Size", "KB", 130610, frequency, RRDSET_TYPE_AREA); + RRDSET *chart_bytes = rrdset_create_localhost("netdata", "backend_bytes", NULL, "backend", NULL, "Netdata Backend Data Size", "KB", 130610, backend_update_every, RRDSET_TYPE_AREA); rrddim_add(chart_bytes, "buffered", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(chart_bytes, "lost", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(chart_bytes, "sent", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); rrddim_add(chart_bytes, "received", NULL, 1, 1024, RRD_ALGORITHM_ABSOLUTE); - RRDSET *chart_ops = rrdset_create_localhost("netdata", "backend_ops", NULL, "backend", NULL, "Netdata Backend Operations", "operations", 130630, frequency, RRDSET_TYPE_LINE); + RRDSET *chart_ops = rrdset_create_localhost("netdata", "backend_ops", NULL, "backend", NULL, "Netdata Backend Operations", "operations", 130630, backend_update_every, RRDSET_TYPE_LINE); rrddim_add(chart_ops, "write", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); rrddim_add(chart_ops, "discard", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); rrddim_add(chart_ops, "reconnect", NULL, 1, 1, RRD_ALGORITHM_ABSOLUTE); @@ -534,11 +640,11 @@ void *backends_main(void *ptr) { * * issue #1432 and https://www.softlab.ntua.gr/facilities/documentation/unix/unix-socket-faq/unix-socket-faq-2.html * - RRDSET *chart_latency = rrdset_create_localhost("netdata", "backend_latency", NULL, "backend", NULL, "Netdata Backend Latency", "ms", 130620, frequency, RRDSET_TYPE_AREA); + RRDSET *chart_latency = rrdset_create_localhost("netdata", "backend_latency", NULL, "backend", NULL, "Netdata Backend Latency", "ms", 130620, backend_update_every, RRDSET_TYPE_AREA); rrddim_add(chart_latency, "latency", NULL, 1, 1000, RRD_ALGORITHM_ABSOLUTE); */ - RRDSET *chart_rusage = rrdset_create_localhost("netdata", "backend_thread_cpu", NULL, "backend", NULL, "NetData Backend Thread CPU usage", "milliseconds/s", 130630, frequency, RRDSET_TYPE_STACKED); + RRDSET *chart_rusage = rrdset_create_localhost("netdata", "backend_thread_cpu", NULL, "backend", NULL, "NetData Backend Thread CPU usage", "milliseconds/s", 130630, backend_update_every, RRDSET_TYPE_STACKED); rrddim_add(chart_rusage, "user", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL); rrddim_add(chart_rusage, "system", NULL, 1, 1000, RRD_ALGORITHM_INCREMENTAL); @@ -546,9 +652,9 @@ void *backends_main(void *ptr) { // ------------------------------------------------------------------------ // prepare the backend main loop - info("BACKEND configured ('%s' on '%s' sending '%s' data, every %d seconds, as host '%s', with prefix '%s')", type, destination, source, frequency, hostname, prefix); + info("BACKEND: configured ('%s' on '%s' sending '%s' data, every %d seconds, as host '%s', with prefix '%s')", type, destination, source, backend_update_every, hostname, backend_prefix); - usec_t step_ut = frequency * USEC_PER_SEC; + usec_t step_ut = backend_update_every * USEC_PER_SEC; time_t after = now_realtime_sec(); int failures = 0; heartbeat_t hb; @@ -558,9 +664,10 @@ void *backends_main(void *ptr) { // ------------------------------------------------------------------------ // Wait for the next iteration point. + heartbeat_next(&hb, step_ut); time_t before = now_realtime_sec(); - + debug(D_BACKEND, "BACKEND: preparing buffer for timeframe %lu to %lu", (unsigned long)after, (unsigned long)before); // ------------------------------------------------------------------------ // add to the buffer the data we need to send to the backend @@ -568,33 +675,59 @@ void *backends_main(void *ptr) { int pthreadoldcancelstate; if(unlikely(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &pthreadoldcancelstate) != 0)) - error("Cannot set pthread cancel state to DISABLE."); + error("BACKEND: cannot set pthread cancel state to DISABLE."); + + size_t count_hosts = 0; + size_t count_charts_total = 0; + size_t count_dims_total = 0; rrd_rdlock(); RRDHOST *host; rrdhost_foreach_read(host) { - if(host->rrd_memory_mode == RRD_MEMORY_MODE_NONE) - continue; - rrdhost_rdlock(host); + count_hosts++; + size_t count_charts = 0; + size_t count_dims = 0; + size_t count_dims_skipped = 0; + + const char *__hostname = (host == localhost)?hostname:host->hostname; + RRDSET *st; rrdset_foreach_read(st, host) { - rrdset_rdlock(st); + if(likely(backends_can_send_rrdset(backend_options, st))) { + rrdset_rdlock(st); + + count_charts++; + + RRDDIM *rd; + rrddim_foreach_read(rd, st) { + if (likely(rd->last_collected_time.tv_sec >= after)) { + chart_buffered_metrics += backend_request_formatter(b, backend_prefix, host, __hostname, st, rd, after, before, backend_options); + count_dims++; + } + else { + debug(D_BACKEND, "BACKEND: not sending dimension '%s' of chart '%s' from host '%s', its last data collection (%lu) is not within our timeframe (%lu to %lu)", rd->id, st->id, __hostname, (unsigned long)rd->last_collected_time.tv_sec, (unsigned long)after, (unsigned long)before); + count_dims_skipped++; + } + } - RRDDIM *rd; - rrddim_foreach_read(rd, st) { - if(rd->last_collected_time.tv_sec >= after) - chart_buffered_metrics += backend_request_formatter(b, prefix, host, (host == localhost)?hostname:host->hostname, st, rd, after, before, options); + rrdset_unlock(st); } - rrdset_unlock(st); } + + debug(D_BACKEND, "BACKEND: sending host '%s', metrics of %zu dimensions, of %zu charts. Skipped %zu dimensions.", __hostname, count_dims, count_charts, count_dims_skipped); + count_charts_total += count_charts; + count_dims_total += count_dims; + rrdhost_unlock(host); } rrd_unlock(); + debug(D_BACKEND, "BACKEND: buffer has %zu bytes, added metrics for %zu dimensions, of %zu charts, from %zu hosts", buffer_strlen(b), count_dims_total, count_charts_total, count_hosts); + if(unlikely(pthread_setcancelstate(pthreadoldcancelstate, NULL) != 0)) - error("Cannot set pthread cancel state to RESTORE (%d).", pthreadoldcancelstate); + error("BACKEND: cannot set pthread cancel state to RESTORE (%d).", pthreadoldcancelstate); // ------------------------------------------------------------------------ @@ -639,14 +772,14 @@ void *backends_main(void *ptr) { chart_receptions++; } else if(r == 0) { - error("Backend '%s' closed the socket", destination); + error("BACKEND: '%s' closed the socket", destination); close(sock); sock = -1; } else { // failed to receive data if(errno != EAGAIN && errno != EWOULDBLOCK) { - error("Cannot receive data from backend '%s'.", destination); + error("BACKEND: cannot receive data from backend '%s'.", destination); } } } @@ -698,7 +831,7 @@ void *backends_main(void *ptr) { } else { // oops! we couldn't send (all or some of the) data - error("Failed to write data to database backend '%s'. Willing to write %zu bytes, wrote %zd bytes. Will re-connect.", destination, len, written); + error("BACKEND: failed to write data to database backend '%s'. Willing to write %zu bytes, wrote %zd bytes. Will re-connect.", destination, len, written); chart_transmission_failures++; if(written != -1) @@ -713,7 +846,7 @@ void *backends_main(void *ptr) { } } else { - error("Failed to update database backend '%s'", destination); + error("BACKEND: failed to update database backend '%s'", destination); chart_transmission_failures++; // increment the counter we check for data loss @@ -723,7 +856,7 @@ void *backends_main(void *ptr) { if(failures > buffer_on_failures) { // too bad! we are going to lose data chart_lost_bytes += buffer_strlen(b); - error("Reached %d backend failures. Flushing buffers to protect this host - this results in data loss on back-end server '%s'", failures, destination); + error("BACKEND: reached %d backend failures. Flushing buffers to protect this host - this results in data loss on back-end server '%s'", failures, destination); buffer_flush(b); failures = 0; chart_data_lost_events++; @@ -781,7 +914,7 @@ cleanup: buffer_free(b); buffer_free(response); - info("BACKEND thread exiting"); + info("BACKEND: thread exiting"); static_thread->enabled = 0; pthread_exit(NULL); |