diff options
Diffstat (limited to 'backends/prometheus/backend_prometheus.c')
| -rw-r--r-- | backends/prometheus/backend_prometheus.c | 797 |
1 files changed, 0 insertions, 797 deletions
diff --git a/backends/prometheus/backend_prometheus.c b/backends/prometheus/backend_prometheus.c deleted file mode 100644 index 1fb3fd42c..000000000 --- a/backends/prometheus/backend_prometheus.c +++ /dev/null @@ -1,797 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later - -#define BACKENDS_INTERNALS -#include "backend_prometheus.h" - -// ---------------------------------------------------------------------------- -// PROMETHEUS -// /api/v1/allmetrics?format=prometheus and /api/v1/allmetrics?format=prometheus_all_hosts - -static struct prometheus_server { - const char *server; - uint32_t hash; - RRDHOST *host; - time_t last_access; - struct prometheus_server *next; -} *prometheus_server_root = NULL; - -static inline time_t prometheus_server_last_access(const char *server, RRDHOST *host, time_t now) { - static netdata_mutex_t prometheus_server_root_mutex = NETDATA_MUTEX_INITIALIZER; - - uint32_t hash = simple_hash(server); - - netdata_mutex_lock(&prometheus_server_root_mutex); - - struct prometheus_server *ps; - for(ps = prometheus_server_root; ps ;ps = ps->next) { - if (host == ps->host && hash == ps->hash && !strcmp(server, ps->server)) { - time_t last = ps->last_access; - ps->last_access = now; - netdata_mutex_unlock(&prometheus_server_root_mutex); - return last; - } - } - - ps = callocz(1, sizeof(struct prometheus_server)); - ps->server = strdupz(server); - ps->hash = hash; - ps->host = host; - ps->last_access = now; - ps->next = prometheus_server_root; - prometheus_server_root = ps; - - netdata_mutex_unlock(&prometheus_server_root_mutex); - return 0; -} - -static inline size_t backends_prometheus_name_copy(char *d, const char *s, size_t usable) { - size_t n; - - for(n = 0; *s && n < usable ; d++, s++, n++) { - register char c = *s; - - if(!isalnum(c)) *d = '_'; - else *d = c; - } - *d = '\0'; - - return n; -} - -static inline size_t backends_prometheus_label_copy(char *d, const char *s, size_t usable) { - size_t n; - - // make sure we can escape one character without overflowing the buffer - usable--; - - for(n = 0; *s && n < usable ; d++, s++, n++) { - register char c = *s; - - if(unlikely(c == '"' || c == '\\' || c == '\n')) { - *d++ = '\\'; - n++; - } - *d = c; - } - *d = '\0'; - - return n; -} - -static inline char *backends_prometheus_units_copy(char *d, const char *s, size_t usable, int showoldunits) { - const char *sorig = s; - char *ret = d; - size_t n; - - // Fix for issue 5227 - if (unlikely(showoldunits)) { - static struct { - const char *newunit; - uint32_t hash; - const char *oldunit; - } units[] = { - {"KiB/s", 0, "kilobytes/s"} - , {"MiB/s", 0, "MB/s"} - , {"GiB/s", 0, "GB/s"} - , {"KiB" , 0, "KB"} - , {"MiB" , 0, "MB"} - , {"GiB" , 0, "GB"} - , {"inodes" , 0, "Inodes"} - , {"percentage" , 0, "percent"} - , {"faults/s" , 0, "page faults/s"} - , {"KiB/operation", 0, "kilobytes per operation"} - , {"milliseconds/operation", 0, "ms per operation"} - , {NULL, 0, NULL} - }; - static int initialized = 0; - int i; - - if(unlikely(!initialized)) { - for (i = 0; units[i].newunit; i++) - units[i].hash = simple_hash(units[i].newunit); - initialized = 1; - } - - uint32_t hash = simple_hash(s); - for(i = 0; units[i].newunit ; i++) { - if(unlikely(hash == units[i].hash && !strcmp(s, units[i].newunit))) { - // info("matched extension for filename '%s': '%s'", filename, last_dot); - s=units[i].oldunit; - sorig = s; - break; - } - } - } - *d++ = '_'; - for(n = 1; *s && n < usable ; d++, s++, n++) { - register char c = *s; - - if(!isalnum(c)) *d = '_'; - else *d = c; - } - - if(n == 2 && sorig[0] == '%') { - n = 0; - d = ret; - s = "_percent"; - for( ; *s && n < usable ; n++) *d++ = *s++; - } - else if(n > 3 && sorig[n-3] == '/' && sorig[n-2] == 's') { - n = n - 2; - d -= 2; - s = "_persec"; - for( ; *s && n < usable ; n++) *d++ = *s++; - } - - *d = '\0'; - - return ret; -} - - -#define PROMETHEUS_ELEMENT_MAX 256 -#define PROMETHEUS_LABELS_MAX 1024 -#define PROMETHEUS_VARIABLE_MAX 256 - -#define PROMETHEUS_LABELS_MAX_NUMBER 128 - -struct host_variables_callback_options { - RRDHOST *host; - BUFFER *wb; - BACKEND_OPTIONS backend_options; - BACKENDS_PROMETHEUS_OUTPUT_OPTIONS output_options; - const char *prefix; - const char *labels; - time_t now; - int host_header_printed; - char name[PROMETHEUS_VARIABLE_MAX+1]; -}; - -static int print_host_variables(RRDVAR *rv, void *data) { - struct host_variables_callback_options *opts = data; - - if(rv->options & (RRDVAR_OPTION_CUSTOM_HOST_VAR|RRDVAR_OPTION_CUSTOM_CHART_VAR)) { - if(!opts->host_header_printed) { - opts->host_header_printed = 1; - - if(opts->output_options & BACKENDS_PROMETHEUS_OUTPUT_HELP) { - buffer_sprintf(opts->wb, "\n# COMMENT global host and chart variables\n"); - } - } - - calculated_number value = rrdvar2number(rv); - if(isnan(value) || isinf(value)) { - if(opts->output_options & BACKENDS_PROMETHEUS_OUTPUT_HELP) - buffer_sprintf(opts->wb, "# COMMENT variable \"%s\" is %s. Skipped.\n", rv->name, (isnan(value))?"NAN":"INF"); - - return 0; - } - - char *label_pre = ""; - char *label_post = ""; - if(opts->labels && *opts->labels) { - label_pre = "{"; - label_post = "}"; - } - - backends_prometheus_name_copy(opts->name, rv->name, sizeof(opts->name)); - - if(opts->output_options & BACKENDS_PROMETHEUS_OUTPUT_TIMESTAMPS) - buffer_sprintf(opts->wb - , "%s_%s%s%s%s " CALCULATED_NUMBER_FORMAT " %llu\n" - , opts->prefix - , opts->name - , label_pre - , opts->labels - , label_post - , value - , opts->now * 1000ULL - ); - else - buffer_sprintf(opts->wb, "%s_%s%s%s%s " CALCULATED_NUMBER_FORMAT "\n" - , opts->prefix - , opts->name - , label_pre - , opts->labels - , label_post - , value - ); - - return 1; - } - - return 0; -} - -static void rrd_stats_api_v1_charts_allmetrics_prometheus(RRDHOST *host, BUFFER *wb, const char *prefix, BACKEND_OPTIONS backend_options, time_t after, time_t before, int allhosts, BACKENDS_PROMETHEUS_OUTPUT_OPTIONS output_options) { - rrdhost_rdlock(host); - - char hostname[PROMETHEUS_ELEMENT_MAX + 1]; - backends_prometheus_label_copy(hostname, host->hostname, PROMETHEUS_ELEMENT_MAX); - - char labels[PROMETHEUS_LABELS_MAX + 1] = ""; - if(allhosts) { - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_TIMESTAMPS) - buffer_sprintf(wb, "netdata_info{instance=\"%s\",application=\"%s\",version=\"%s\"} 1 %llu\n", hostname, host->program_name, host->program_version, now_realtime_usec() / USEC_PER_MS); - else - buffer_sprintf(wb, "netdata_info{instance=\"%s\",application=\"%s\",version=\"%s\"} 1\n", hostname, host->program_name, host->program_version); - - if(host->tags && *(host->tags)) { - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_TIMESTAMPS) { - buffer_sprintf(wb, "netdata_host_tags_info{instance=\"%s\",%s} 1 %llu\n", hostname, host->tags, now_realtime_usec() / USEC_PER_MS); - - // deprecated, exists only for compatibility with older queries - buffer_sprintf(wb, "netdata_host_tags{instance=\"%s\",%s} 1 %llu\n", hostname, host->tags, now_realtime_usec() / USEC_PER_MS); - } - else { - buffer_sprintf(wb, "netdata_host_tags_info{instance=\"%s\",%s} 1\n", hostname, host->tags); - - // deprecated, exists only for compatibility with older queries - buffer_sprintf(wb, "netdata_host_tags{instance=\"%s\",%s} 1\n", hostname, host->tags); - } - - } - - snprintfz(labels, PROMETHEUS_LABELS_MAX, ",instance=\"%s\"", hostname); - } - else { - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_TIMESTAMPS) - buffer_sprintf(wb, "netdata_info{instance=\"%s\",application=\"%s\",version=\"%s\"} 1 %llu\n", hostname, host->program_name, host->program_version, now_realtime_usec() / USEC_PER_MS); - else - buffer_sprintf(wb, "netdata_info{instance=\"%s\",application=\"%s\",version=\"%s\"} 1\n", hostname, host->program_name, host->program_version); - - if(host->tags && *(host->tags)) { - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_TIMESTAMPS) { - buffer_sprintf(wb, "netdata_host_tags_info{%s} 1 %llu\n", host->tags, now_realtime_usec() / USEC_PER_MS); - - // deprecated, exists only for compatibility with older queries - buffer_sprintf(wb, "netdata_host_tags{%s} 1 %llu\n", host->tags, now_realtime_usec() / USEC_PER_MS); - } - else { - buffer_sprintf(wb, "netdata_host_tags_info{%s} 1\n", host->tags); - - // deprecated, exists only for compatibility with older queries - buffer_sprintf(wb, "netdata_host_tags{%s} 1\n", host->tags); - } - } - } - - // send custom variables set for the host - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_VARIABLES){ - struct host_variables_callback_options opts = { - .host = host, - .wb = wb, - .labels = (labels[0] == ',')?&labels[1]:labels, - .backend_options = backend_options, - .output_options = output_options, - .prefix = prefix, - .now = now_realtime_sec(), - .host_header_printed = 0 - }; - foreach_host_variable_callback(host, print_host_variables, &opts); - } - - // for each chart - RRDSET *st; - rrdset_foreach_read(st, host) { - char chart[PROMETHEUS_ELEMENT_MAX + 1]; - char context[PROMETHEUS_ELEMENT_MAX + 1]; - char family[PROMETHEUS_ELEMENT_MAX + 1]; - char units[PROMETHEUS_ELEMENT_MAX + 1] = ""; - - backends_prometheus_label_copy(chart, (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && st->name)?st->name:st->id, PROMETHEUS_ELEMENT_MAX); - backends_prometheus_label_copy(family, st->family, PROMETHEUS_ELEMENT_MAX); - backends_prometheus_name_copy(context, st->context, PROMETHEUS_ELEMENT_MAX); - - if(likely(backends_can_send_rrdset(backend_options, st))) { - rrdset_rdlock(st); - - int as_collected = (BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_AS_COLLECTED); - int homogeneous = 1; - if(as_collected) { - if(rrdset_flag_check(st, RRDSET_FLAG_HOMOGENEOUS_CHECK)) - rrdset_update_heterogeneous_flag(st); - - if(rrdset_flag_check(st, RRDSET_FLAG_HETEROGENEOUS)) - homogeneous = 0; - } - else { - if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_AVERAGE && !(output_options & BACKENDS_PROMETHEUS_OUTPUT_HIDEUNITS)) - backends_prometheus_units_copy(units, st->units, PROMETHEUS_ELEMENT_MAX, output_options & BACKENDS_PROMETHEUS_OUTPUT_OLDUNITS); - } - - if(unlikely(output_options & BACKENDS_PROMETHEUS_OUTPUT_HELP)) - buffer_sprintf(wb, "\n# COMMENT %s chart \"%s\", context \"%s\", family \"%s\", units \"%s\"\n" - , (homogeneous)?"homogeneous":"heterogeneous" - , (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && st->name) ? st->name : st->id - , st->context - , st->family - , st->units - ); - - // for each dimension - RRDDIM *rd; - rrddim_foreach_read(rd, st) { - if(rd->collections_counter && !rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE)) { - char dimension[PROMETHEUS_ELEMENT_MAX + 1]; - char *suffix = ""; - - if (as_collected) { - // we need as-collected / raw data - - if(unlikely(rd->last_collected_time.tv_sec < after)) - continue; - - const char *t = "gauge", *h = "gives"; - if(rd->algorithm == RRD_ALGORITHM_INCREMENTAL || - rd->algorithm == RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL) { - t = "counter"; - h = "delta gives"; - suffix = "_total"; - } - - if(homogeneous) { - // all the dimensions of the chart, has the same algorithm, multiplier and divisor - // we add all dimensions as labels - - backends_prometheus_label_copy(dimension, (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && rd->name) ? rd->name : rd->id, PROMETHEUS_ELEMENT_MAX); - - if(unlikely(output_options & BACKENDS_PROMETHEUS_OUTPUT_HELP)) - buffer_sprintf(wb - , "# COMMENT %s_%s%s: chart \"%s\", context \"%s\", family \"%s\", dimension \"%s\", value * " COLLECTED_NUMBER_FORMAT " / " COLLECTED_NUMBER_FORMAT " %s %s (%s)\n" - , prefix - , context - , suffix - , (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && st->name) ? st->name : st->id - , st->context - , st->family - , (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && rd->name) ? rd->name : rd->id - , rd->multiplier - , rd->divisor - , h - , st->units - , t - ); - - if(unlikely(output_options & BACKENDS_PROMETHEUS_OUTPUT_TYPES)) - buffer_sprintf(wb, "# TYPE %s_%s%s %s\n" - , prefix - , context - , suffix - , t - ); - - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_TIMESTAMPS) - buffer_sprintf(wb - , "%s_%s%s{chart=\"%s\",family=\"%s\",dimension=\"%s\"%s} " COLLECTED_NUMBER_FORMAT " %llu\n" - , prefix - , context - , suffix - , chart - , family - , dimension - , labels - , rd->last_collected_value - , timeval_msec(&rd->last_collected_time) - ); - else - buffer_sprintf(wb - , "%s_%s%s{chart=\"%s\",family=\"%s\",dimension=\"%s\"%s} " COLLECTED_NUMBER_FORMAT "\n" - , prefix - , context - , suffix - , chart - , family - , dimension - , labels - , rd->last_collected_value - ); - } - else { - // the dimensions of the chart, do not have the same algorithm, multiplier or divisor - // we create a metric per dimension - - backends_prometheus_name_copy(dimension, (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && rd->name) ? rd->name : rd->id, PROMETHEUS_ELEMENT_MAX); - - if(unlikely(output_options & BACKENDS_PROMETHEUS_OUTPUT_HELP)) - buffer_sprintf(wb - , "# COMMENT %s_%s_%s%s: chart \"%s\", context \"%s\", family \"%s\", dimension \"%s\", value * " COLLECTED_NUMBER_FORMAT " / " COLLECTED_NUMBER_FORMAT " %s %s (%s)\n" - , prefix - , context - , dimension - , suffix - , (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && st->name) ? st->name : st->id - , st->context - , st->family - , (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && rd->name) ? rd->name : rd->id - , rd->multiplier - , rd->divisor - , h - , st->units - , t - ); - - if(unlikely(output_options & BACKENDS_PROMETHEUS_OUTPUT_TYPES)) - buffer_sprintf(wb, "# TYPE %s_%s_%s%s %s\n" - , prefix - , context - , dimension - , suffix - , t - ); - - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_TIMESTAMPS) - buffer_sprintf(wb - , "%s_%s_%s%s{chart=\"%s\",family=\"%s\"%s} " COLLECTED_NUMBER_FORMAT " %llu\n" - , prefix - , context - , dimension - , suffix - , chart - , family - , labels - , rd->last_collected_value - , timeval_msec(&rd->last_collected_time) - ); - else - buffer_sprintf(wb - , "%s_%s_%s%s{chart=\"%s\",family=\"%s\"%s} " COLLECTED_NUMBER_FORMAT "\n" - , prefix - , context - , dimension - , suffix - , chart - , family - , labels - , rd->last_collected_value - ); - } - } - else { - // we need average or sum of the data - - time_t first_t = after, last_t = before; - calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, backend_options, &first_t, &last_t); - - if(!isnan(value) && !isinf(value)) { - - if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_AVERAGE) - suffix = "_average"; - else if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_SUM) - suffix = "_sum"; - - backends_prometheus_label_copy(dimension, (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && rd->name) ? rd->name : rd->id, PROMETHEUS_ELEMENT_MAX); - - if (unlikely(output_options & BACKENDS_PROMETHEUS_OUTPUT_HELP)) - buffer_sprintf(wb, "# COMMENT %s_%s%s%s: dimension \"%s\", value is %s, gauge, dt %llu to %llu inclusive\n" - , prefix - , context - , units - , suffix - , (output_options & BACKENDS_PROMETHEUS_OUTPUT_NAMES && rd->name) ? rd->name : rd->id - , st->units - , (unsigned long long)first_t - , (unsigned long long)last_t - ); - - if (unlikely(output_options & BACKENDS_PROMETHEUS_OUTPUT_TYPES)) - buffer_sprintf(wb, "# TYPE %s_%s%s%s gauge\n" - , prefix - , context - , units - , suffix - ); - - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_TIMESTAMPS) - buffer_sprintf(wb, "%s_%s%s%s{chart=\"%s\",family=\"%s\",dimension=\"%s\"%s} " CALCULATED_NUMBER_FORMAT " %llu\n" - , prefix - , context - , units - , suffix - , chart - , family - , dimension - , labels - , value - , last_t * MSEC_PER_SEC - ); - else - buffer_sprintf(wb, "%s_%s%s%s{chart=\"%s\",family=\"%s\",dimension=\"%s\"%s} " CALCULATED_NUMBER_FORMAT "\n" - , prefix - , context - , units - , suffix - , chart - , family - , dimension - , labels - , value - ); - } - } - } - } - - rrdset_unlock(st); - } - } - - rrdhost_unlock(host); -} - -#if ENABLE_PROMETHEUS_REMOTE_WRITE -inline static void remote_write_split_words(char *str, char **words, int max_words) { - char *s = str; - int i = 0; - - while(*s && i < max_words - 1) { - while(*s && isspace(*s)) s++; // skip spaces to the beginning of a tag name - - if(*s) - words[i] = s; - - while(*s && !isspace(*s) && *s != '=') s++; // find the end of the tag name - - if(*s != '=') { - words[i] = NULL; - break; - } - *s = '\0'; - s++; - i++; - - while(*s && isspace(*s)) s++; // skip spaces to the beginning of a tag value - - if(*s && *s == '"') s++; // strip an opening quote - if(*s) - words[i] = s; - - while(*s && !isspace(*s) && *s != ',') s++; // find the end of the tag value - - if(*s && *s != ',') { - words[i] = NULL; - break; - } - if(s != words[i] && *(s - 1) == '"') *(s - 1) = '\0'; // strip a closing quote - if(*s != '\0') { - *s = '\0'; - s++; - i++; - } - } -} - -void backends_rrd_stats_remote_write_allmetrics_prometheus( - RRDHOST *host - , const char *__hostname - , const char *prefix - , BACKEND_OPTIONS backend_options - , time_t after - , time_t before - , size_t *count_charts - , size_t *count_dims - , size_t *count_dims_skipped -) { - char hostname[PROMETHEUS_ELEMENT_MAX + 1]; - backends_prometheus_label_copy(hostname, __hostname, PROMETHEUS_ELEMENT_MAX); - - backends_add_host_info("netdata_info", hostname, host->program_name, host->program_version, now_realtime_usec() / USEC_PER_MS); - - if(host->tags && *(host->tags)) { - char tags[PROMETHEUS_LABELS_MAX + 1]; - strncpy(tags, host->tags, PROMETHEUS_LABELS_MAX); - char *words[PROMETHEUS_LABELS_MAX_NUMBER] = {NULL}; - int i; - - remote_write_split_words(tags, words, PROMETHEUS_LABELS_MAX_NUMBER); - - backends_add_host_info("netdata_host_tags_info", hostname, NULL, NULL, now_realtime_usec() / USEC_PER_MS); - - for(i = 0; words[i] != NULL && words[i + 1] != NULL && (i + 1) < PROMETHEUS_LABELS_MAX_NUMBER; i += 2) { - backends_add_tag(words[i], words[i + 1]); - } - } - - // for each chart - RRDSET *st; - rrdset_foreach_read(st, host) { - char chart[PROMETHEUS_ELEMENT_MAX + 1]; - char context[PROMETHEUS_ELEMENT_MAX + 1]; - char family[PROMETHEUS_ELEMENT_MAX + 1]; - char units[PROMETHEUS_ELEMENT_MAX + 1] = ""; - - backends_prometheus_label_copy(chart, (backend_options & BACKEND_OPTION_SEND_NAMES && st->name)?st->name:st->id, PROMETHEUS_ELEMENT_MAX); - backends_prometheus_label_copy(family, st->family, PROMETHEUS_ELEMENT_MAX); - backends_prometheus_name_copy(context, st->context, PROMETHEUS_ELEMENT_MAX); - - if(likely(backends_can_send_rrdset(backend_options, st))) { - rrdset_rdlock(st); - - (*count_charts)++; - - int as_collected = (BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_AS_COLLECTED); - int homogeneous = 1; - if(as_collected) { - if(rrdset_flag_check(st, RRDSET_FLAG_HOMOGENEOUS_CHECK)) - rrdset_update_heterogeneous_flag(st); - - if(rrdset_flag_check(st, RRDSET_FLAG_HETEROGENEOUS)) - homogeneous = 0; - } - else { - if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_AVERAGE) - backends_prometheus_units_copy(units, st->units, PROMETHEUS_ELEMENT_MAX, 0); - } - - // for each dimension - RRDDIM *rd; - rrddim_foreach_read(rd, st) { - if(rd->collections_counter && !rrddim_flag_check(rd, RRDDIM_FLAG_OBSOLETE)) { - char name[PROMETHEUS_LABELS_MAX + 1]; - char dimension[PROMETHEUS_ELEMENT_MAX + 1]; - char *suffix = ""; - - if (as_collected) { - // we need as-collected / raw data - - if(unlikely(rd->last_collected_time.tv_sec < after)) { - 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)++; - continue; - } - - if(homogeneous) { - // all the dimensions of the chart, has the same algorithm, multiplier and divisor - // we add all dimensions as labels - - backends_prometheus_label_copy(dimension, (backend_options & BACKEND_OPTION_SEND_NAMES && rd->name) ? rd->name : rd->id, PROMETHEUS_ELEMENT_MAX); - snprintf(name, PROMETHEUS_LABELS_MAX, "%s_%s%s", prefix, context, suffix); - - backends_add_metric(name, chart, family, dimension, hostname, rd->last_collected_value, timeval_msec(&rd->last_collected_time)); - (*count_dims)++; - } - else { - // the dimensions of the chart, do not have the same algorithm, multiplier or divisor - // we create a metric per dimension - - backends_prometheus_name_copy(dimension, (backend_options & BACKEND_OPTION_SEND_NAMES && rd->name) ? rd->name : rd->id, PROMETHEUS_ELEMENT_MAX); - snprintf(name, PROMETHEUS_LABELS_MAX, "%s_%s_%s%s", prefix, context, dimension, suffix); - - backends_add_metric(name, chart, family, NULL, hostname, rd->last_collected_value, timeval_msec(&rd->last_collected_time)); - (*count_dims)++; - } - } - else { - // we need average or sum of the data - - time_t first_t = after, last_t = before; - calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, backend_options, &first_t, &last_t); - - if(!isnan(value) && !isinf(value)) { - - if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_AVERAGE) - suffix = "_average"; - else if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_SUM) - suffix = "_sum"; - - backends_prometheus_label_copy(dimension, (backend_options & BACKEND_OPTION_SEND_NAMES && rd->name) ? rd->name : rd->id, PROMETHEUS_ELEMENT_MAX); - snprintf(name, PROMETHEUS_LABELS_MAX, "%s_%s%s%s", prefix, context, units, suffix); - - backends_add_metric(name, chart, family, dimension, hostname, value, last_t * MSEC_PER_SEC); - (*count_dims)++; - } - } - } - } - - rrdset_unlock(st); - } - } -} -#endif /* ENABLE_PROMETHEUS_REMOTE_WRITE */ - -static inline time_t prometheus_preparation(RRDHOST *host, BUFFER *wb, BACKEND_OPTIONS backend_options, const char *server, time_t now, BACKENDS_PROMETHEUS_OUTPUT_OPTIONS output_options) { - if(!server || !*server) server = "default"; - - time_t after = prometheus_server_last_access(server, host, now); - - int first_seen = 0; - if(!after) { - after = now - global_backend_update_every; - first_seen = 1; - } - - if(after > now) { - // oops! this should never happen - after = now - global_backend_update_every; - } - - if(output_options & BACKENDS_PROMETHEUS_OUTPUT_HELP) { - char *mode; - if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_AS_COLLECTED) - mode = "as collected"; - else if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_AVERAGE) - mode = "average"; - else if(BACKEND_OPTIONS_DATA_SOURCE(backend_options) == BACKEND_SOURCE_DATA_SUM) - mode = "sum"; - else - mode = "unknown"; - - buffer_sprintf(wb, "# COMMENT netdata \"%s\" to %sprometheus \"%s\", source \"%s\", last seen %lu %s, time range %lu to %lu\n\n" - , host->hostname - , (first_seen)?"FIRST SEEN ":"" - , server - , mode - , (unsigned long)((first_seen)?0:(now - after)) - , (first_seen)?"never":"seconds ago" - , (unsigned long)after, (unsigned long)now - ); - } - - return after; -} - -void backends_rrd_stats_api_v1_charts_allmetrics_prometheus_single_host(RRDHOST *host, BUFFER *wb, const char *server, const char *prefix, BACKEND_OPTIONS backend_options, BACKENDS_PROMETHEUS_OUTPUT_OPTIONS output_options) { - time_t before = now_realtime_sec(); - - // we start at the point we had stopped before - time_t after = prometheus_preparation(host, wb, backend_options, server, before, output_options); - - rrd_stats_api_v1_charts_allmetrics_prometheus(host, wb, prefix, backend_options, after, before, 0, output_options); -} - -void backends_rrd_stats_api_v1_charts_allmetrics_prometheus_all_hosts(RRDHOST *host, BUFFER *wb, const char *server, const char *prefix, BACKEND_OPTIONS backend_options, BACKENDS_PROMETHEUS_OUTPUT_OPTIONS output_options) { - time_t before = now_realtime_sec(); - - // we start at the point we had stopped before - time_t after = prometheus_preparation(host, wb, backend_options, server, before, output_options); - - rrd_rdlock(); - rrdhost_foreach_read(host) { - rrd_stats_api_v1_charts_allmetrics_prometheus(host, wb, prefix, backend_options, after, before, 1, output_options); - } - rrd_unlock(); -} - -#if ENABLE_PROMETHEUS_REMOTE_WRITE -int backends_process_prometheus_remote_write_response(BUFFER *b) { - if(unlikely(!b)) return 1; - - const char *s = buffer_tostring(b); - int len = buffer_strlen(b); - - // do nothing with HTTP responses 200 or 204 - - while(!isspace(*s) && len) { - s++; - len--; - } - s++; - len--; - - if(likely(len > 4 && (!strncmp(s, "200 ", 4) || !strncmp(s, "204 ", 4)))) - return 0; - else - return discard_response(b, "prometheus remote write"); -} -#endif |