rrddim_foreach_read(rd, st) {
rd->last_collected_time.tv_sec = 0;
rd->last_collected_time.tv_usec = 0;
- rd->counter = 0;
+ rd->collections_counter = 0;
memset(rd->values, 0, rd->entries * sizeof(storage_number));
}
}
// ----------------------------------------------------------------------------
// RRDSET - helpers for rrdset_create()
-inline long align_entries_to_pagesize(long entries) {
- if(central_netdata_to_push_data)
- return entries;
+inline long align_entries_to_pagesize(RRD_MEMORY_MODE mode, long entries) {
+ if(unlikely(entries < 5)) entries = 5;
+ if(unlikely(entries > RRD_HISTORY_ENTRIES_MAX)) entries = RRD_HISTORY_ENTRIES_MAX;
- if(entries < 5) entries = 5;
- if(entries > RRD_HISTORY_ENTRIES_MAX) entries = RRD_HISTORY_ENTRIES_MAX;
+ if(unlikely(mode == RRD_MEMORY_MODE_NONE || mode == RRD_MEMORY_MODE_RAM))
+ return entries;
long page = (size_t)sysconf(_SC_PAGESIZE);
long size = sizeof(RRDDIM) + entries * sizeof(storage_number);
- if(size % page) {
+ if(unlikely(size % page)) {
size -= (size % page);
size += page;
return entries;
}
-static inline void timeval_align(struct timeval *tv, int update_every) {
+static inline void last_collected_time_align(struct timeval *tv, int update_every) {
tv->tv_sec -= tv->tv_sec % update_every;
tv->tv_usec = 500000;
}
+static inline void last_updated_time_align(struct timeval *tv, int update_every) {
+ tv->tv_sec -= tv->tv_sec % update_every;
+ tv->tv_usec = 0;
+}
+
// ----------------------------------------------------------------------------
// RRDSET - free a chart
// get the options from the config, we need to create it
long rentries = config_get_number(config_section, "history", host->rrd_history_entries);
- long entries = align_entries_to_pagesize(rentries);
+ long entries = align_entries_to_pagesize(host->rrd_memory_mode, rentries);
if(entries != rentries) entries = config_set_number(config_section, "history", entries);
+ if(host->rrd_memory_mode == RRD_MEMORY_MODE_NONE && entries != rentries)
+ entries = config_set_number(config_section, "history", 10);
+
int enabled = config_get_boolean(config_section, "enabled", 1);
if(!enabled) entries = 5;
unsigned long size = sizeof(RRDSET);
char *cache_dir = rrdset_cache_dir(host, fullid, config_section);
+ time_t now = now_realtime_sec();
+
// ------------------------------------------------------------------------
// load it or allocate it
debug(D_RRD_CALLS, "Creating RRD_STATS for '%s.%s'.", type, id);
snprintfz(fullfilename, FILENAME_MAX, "%s/main.db", cache_dir);
- if(host->rrd_memory_mode != RRD_MEMORY_MODE_RAM) {
+ if(host->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || host->rrd_memory_mode == RRD_MEMORY_MODE_MAP) {
st = (RRDSET *) mymmap(fullfilename, size, ((host->rrd_memory_mode == RRD_MEMORY_MODE_MAP) ? MAP_SHARED : MAP_PRIVATE), 0);
if(st) {
memset(&st->avl, 0, sizeof(avl));
error("File %s does not have the desired update frequency. Clearing it.", fullfilename);
memset(st, 0, size);
}
- else if((now_realtime_sec() - st->last_updated.tv_sec) > update_every * entries) {
+ else if((now - st->last_updated.tv_sec) > update_every * entries) {
errno = 0;
error("File %s is too old. Clearing it.", fullfilename);
memset(st, 0, size);
}
+ else if(st->last_updated.tv_sec > now + update_every) {
+ errno = 0;
+ error("File %s refers to the future. Clearing it.", fullfilename);
+ memset(st, 0, size);
+ }
// make sure the database is aligned
if(st->last_updated.tv_sec)
- timeval_align(&st->last_updated, update_every);
+ last_updated_time_align(&st->last_updated, update_every);
+
// make sure we have the right memory mode
// even if we cleared the memory
if(unlikely(!st)) {
st = callocz(1, size);
- st->rrd_memory_mode = RRD_MEMORY_MODE_RAM;
+ st->rrd_memory_mode = (host->rrd_memory_mode == RRD_MEMORY_MODE_NONE) ? RRD_MEMORY_MODE_NONE : RRD_MEMORY_MODE_RAM;
}
st->config_section = strdup(config_section);
// ----------------------------------------------------------------------------
// RRDSET - data collection iteration control
-void rrdset_next_usec_unfiltered(RRDSET *st, usec_t microseconds) {
- if(unlikely(!st->last_collected_time.tv_sec || !microseconds)) {
+inline void rrdset_next_usec_unfiltered(RRDSET *st, usec_t microseconds) {
+
+ if(unlikely(!st->last_collected_time.tv_sec)) {
// the first entry
microseconds = st->update_every * USEC_PER_SEC;
}
+ else if(unlikely(!microseconds)) {
+ // no dt given by the plugin
+ struct timeval now;
+ now_realtime_timeval(&now);
+ microseconds = dt_usec(&now, &st->last_collected_time);
+ }
+
st->usec_since_last_update = microseconds;
}
-void rrdset_next_usec(RRDSET *st, usec_t microseconds)
-{
+inline void rrdset_next_usec(RRDSET *st, usec_t microseconds) {
struct timeval now;
now_realtime_timeval(&now);
// usec_t now_usec = timeval_usec(&now);
// usec_t last_usec = timeval_usec(&st->last_collected_time);
//#endif
- usec_t since_last_usec = dt_usec(&now, &st->last_collected_time);
+ susec_t since_last_usec = dt_usec_signed(&now, &st->last_collected_time);
+
+ if(unlikely(since_last_usec < 0)) {
+ // oops! the database is in the future
+ error("Database for chart '%s' on host '%s' is %lld microseconds in the future. Adjusting it to current time.", st->id, st->rrdhost->hostname, -since_last_usec);
+
+ st->last_collected_time.tv_sec = now.tv_sec - st->update_every;
+ st->last_collected_time.tv_usec = now.tv_usec;
+ last_collected_time_align(&st->last_collected_time, st->update_every);
+
+ st->last_updated.tv_sec = now.tv_sec - st->update_every;
+ st->last_updated.tv_usec = now.tv_usec;
+ last_updated_time_align(&st->last_updated, st->update_every);
+
+ microseconds = st->update_every * USEC_PER_SEC;
+ since_last_usec = st->update_every * USEC_PER_SEC;
+ }
// verify the microseconds given is good
- if(unlikely(microseconds > since_last_usec)) {
- debug(D_RRD_CALLS, "dt %llu usec given is too big - it leads %llu usec to the future, for chart '%s' (%s).", microseconds, microseconds - since_last_usec, st->name, st->id);
+ if(unlikely(microseconds > (usec_t)since_last_usec)) {
+ debug(D_RRD_CALLS, "dt %llu usec given is too big - it leads %llu usec to the future, for chart '%s' (%s).", microseconds, microseconds - (usec_t)since_last_usec, st->name, st->id);
//#ifdef NETDATA_INTERNAL_CHECKS
// if(unlikely(last_usec + microseconds > now_usec + 1000))
-// error("dt %llu usec given is too big - it leads %llu usec to the future, for chart '%s' (%s).", microseconds, microseconds - since_last_usec, st->name, st->id);
+// error("dt %llu usec given is too big - it leads %llu usec to the future, for chart '%s' (%s).", microseconds, microseconds - (usec_t)since_last_usec, st->name, st->id);
//#endif
- microseconds = since_last_usec;
+ microseconds = (usec_t)since_last_usec;
}
- else if(unlikely(microseconds < since_last_usec * 0.8)) {
- debug(D_RRD_CALLS, "dt %llu usec given is too small - expected %llu usec up to -20%%, for chart '%s' (%s).", microseconds, since_last_usec, st->name, st->id);
+ else if(unlikely(microseconds < (usec_t)since_last_usec * 0.8)) {
+ debug(D_RRD_CALLS, "dt %llu usec given is too small - expected %llu usec up to -20%%, for chart '%s' (%s).", microseconds, (usec_t)since_last_usec, st->name, st->id);
//#ifdef NETDATA_INTERNAL_CHECKS
-// error("dt %llu usec given is too small - expected %llu usec up to -20%%, for chart '%s' (%s).", microseconds, since_last_usec, st->name, st->id);
+// error("dt %llu usec given is too small - expected %llu usec up to -20%%, for chart '%s' (%s).", microseconds, (usec_t)since_last_usec, st->name, st->id);
//#endif
- microseconds = since_last_usec;
+ microseconds = (usec_t)since_last_usec;
}
}
debug(D_RRD_CALLS, "rrdset_next_usec() for chart %s with microseconds %llu", st->name, microseconds);
// ----------------------------------------------------------------------------
// RRDSET - process the collected values for all dimensions of a chart
+static inline void rrdset_init_last_collected_time(RRDSET *st) {
+ now_realtime_timeval(&st->last_collected_time);
+ last_collected_time_align(&st->last_collected_time, st->update_every);
+}
+
+static inline usec_t rrdset_update_last_collected_time(RRDSET *st) {
+ usec_t last_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec;
+ usec_t ut = last_collect_ut + st->usec_since_last_update;
+ st->last_collected_time.tv_sec = (time_t) (ut / USEC_PER_SEC);
+ st->last_collected_time.tv_usec = (suseconds_t) (ut % USEC_PER_SEC);
+ return last_collect_ut;
+}
+
+static inline void rrdset_init_last_updated_time(RRDSET *st) {
+ // copy the last collected time to last updated time
+ st->last_updated.tv_sec = st->last_collected_time.tv_sec;
+ st->last_updated.tv_usec = st->last_collected_time.tv_usec;
+ last_updated_time_align(&st->last_updated, st->update_every);
+}
+
+static inline void rrdset_done_push_exclusive(RRDSET *st) {
+ if(unlikely(!st->last_collected_time.tv_sec)) {
+ // it is the first entry
+ // set the last_collected_time to now
+ rrdset_init_last_collected_time(st);
+ }
+ else {
+ // it is not the first entry
+ // calculate the proper last_collected_time, using usec_since_last_update
+ rrdset_update_last_collected_time(st);
+ }
+
+ st->counter_done++;
+
+ rrdset_rdlock(st);
+ rrdset_done_push(st);
+ rrdset_unlock(st);
+}
+
void rrdset_done(RRDSET *st) {
if(unlikely(netdata_exit)) return;
- if(unlikely(central_netdata_to_push_data)) {
- rrdset_done_push(st);
+
+ if(unlikely(st->rrd_memory_mode == RRD_MEMORY_MODE_NONE)) {
+ if(unlikely(st->rrdhost->rrdpush_enabled))
+ rrdset_done_push_exclusive(st);
+
return;
}
if(unlikely(!st->last_collected_time.tv_sec)) {
// it is the first entry
// set the last_collected_time to now
- now_realtime_timeval(&st->last_collected_time);
- timeval_align(&st->last_collected_time, st->update_every);
+ rrdset_init_last_collected_time(st);
last_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec - update_every_ut;
else {
// it is not the first entry
// calculate the proper last_collected_time, using usec_since_last_update
- last_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec;
- usec_t ut = last_collect_ut + st->usec_since_last_update;
- st->last_collected_time.tv_sec = (time_t) (ut / USEC_PER_SEC);
- st->last_collected_time.tv_usec = (suseconds_t) (ut % USEC_PER_SEC);
+ last_collect_ut = rrdset_update_last_collected_time(st);
}
// if this set has not been updated in the past
if(unlikely(!st->last_updated.tv_sec)) {
// it has never been updated before
// set a fake last_updated, in the past using usec_since_last_update
- usec_t ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec - st->usec_since_last_update;
- st->last_updated.tv_sec = (time_t) (ut / USEC_PER_SEC);
- st->last_updated.tv_usec = (suseconds_t) (ut % USEC_PER_SEC);
+ rrdset_init_last_updated_time(st);
// the first entry should not be stored
store_this_entry = 0;
first_entry = 1;
if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG)))
- debug(D_RRD_STATS, "%s: initializing last_updated to now - %llu microseconds (%0.3Lf). Will not store the next entry.", st->name, st->usec_since_last_update, (long double)ut/1000000.0);
+ debug(D_RRD_STATS, "%s: initializing last_updated to last_collected_time - %llu microseconds. Will not store the next entry.", st->name, st->usec_since_last_update);
}
// check if we will re-write the entire data set
if(unlikely(dt_usec(&st->last_collected_time, &st->last_updated) > st->entries * update_every_ut)) {
info("%s: too old data (last updated at %ld.%ld, last collected at %ld.%ld). Resetting it. Will not store the next entry.", st->name, st->last_updated.tv_sec, st->last_updated.tv_usec, st->last_collected_time.tv_sec, st->last_collected_time.tv_usec);
rrdset_reset(st);
+ rrdset_init_last_updated_time(st);
st->usec_since_last_update = update_every_ut;
- now_realtime_timeval(&st->last_collected_time);
- timeval_align(&st->last_collected_time, st->update_every);
-
- usec_t ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec - st->usec_since_last_update;
- st->last_updated.tv_sec = (time_t) (ut / USEC_PER_SEC);
- st->last_updated.tv_usec = (suseconds_t) (ut % USEC_PER_SEC);
-
// the first entry should not be stored
store_this_entry = 0;
first_entry = 1;
}
st->counter_done++;
+ if(unlikely(st->rrdhost->rrdpush_enabled))
+ rrdset_done_push(st);
+
// calculate totals and count the dimensions
int dimensions = 0;
st->collected_total = 0;
rrddim_foreach_read(rd, st) {
dimensions++;
- if(likely(rrddim_flag_check(rd, RRDDIM_FLAG_UPDATED)))
+ if(likely(rd->updated))
st->collected_total += rd->collected_value;
}
// at this stage we do not interpolate anything
rrddim_foreach_read(rd, st) {
- if(unlikely(!rrddim_flag_check(rd, RRDDIM_FLAG_UPDATED))) {
+ if(unlikely(!rd->updated)) {
rd->calculated_value = 0;
continue;
}
break;
case RRD_ALGORITHM_INCREMENTAL:
- if(unlikely(rd->counter <= 1)) {
+ if(unlikely(rd->collections_counter <= 1)) {
rd->calculated_value = 0;
continue;
}
break;
case RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL:
- if(unlikely(rd->counter <= 1)) {
+ if(unlikely(rd->collections_counter <= 1)) {
rd->calculated_value = 0;
continue;
}
continue;
}
- if(likely(rrddim_flag_check(rd, RRDDIM_FLAG_UPDATED) && rd->counter > 1 && iterations < st->gap_when_lost_iterations_above)) {
+ if(likely(rd->updated && rd->collections_counter > 1 && iterations < st->gap_when_lost_iterations_above)) {
rd->values[st->current_entry] = pack_storage_number(new_value, storage_flags );
rd->last_stored_value = new_value;
st->last_collected_total = st->collected_total;
rrddim_foreach_read(rd, st) {
- if(unlikely(!rrddim_flag_check(rd, RRDDIM_FLAG_UPDATED)))
+ if(unlikely(!rd->updated))
continue;
if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG)))
rd->calculated_value = 0;
rd->collected_value = 0;
- rrddim_flag_clear(rd, RRDDIM_FLAG_UPDATED);
+ rd->updated = 0;
if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG)))
debug(D_RRD_STATS, "%s/%s: END "
if(unlikely(pthread_setcancelstate(pthreadoldcancelstate, NULL) != 0))
error("Cannot set pthread cancel state to RESTORE (%d).", pthreadoldcancelstate);
}
-
projects / netdata.git / blobdiff