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authorDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:22:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:22:44 +0000
commit1e6c93250172946eeb38e94a92a1fd12c9d3011e (patch)
tree8ca5e16dfc7ad6b3bf2738ca0a48408a950f8f7e /src/rrdset.c
parentUpdate watch file (diff)
downloadnetdata-1e6c93250172946eeb38e94a92a1fd12c9d3011e.tar.xz
netdata-1e6c93250172946eeb38e94a92a1fd12c9d3011e.zip
Merging upstream version 1.11.0+dfsg.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/rrdset.c')
-rw-r--r--src/rrdset.c1544
1 files changed, 0 insertions, 1544 deletions
diff --git a/src/rrdset.c b/src/rrdset.c
deleted file mode 100644
index bbd0ae728..000000000
--- a/src/rrdset.c
+++ /dev/null
@@ -1,1544 +0,0 @@
-#define NETDATA_RRD_INTERNALS 1
-#include "common.h"
-
-void __rrdset_check_rdlock(RRDSET *st, const char *file, const char *function, const unsigned long line) {
- debug(D_RRD_CALLS, "Checking read lock on chart '%s'", st->id);
-
- int ret = netdata_rwlock_trywrlock(&st->rrdset_rwlock);
- if(ret == 0)
- fatal("RRDSET '%s' should be read-locked, but it is not, at function %s() at line %lu of file '%s'", st->id, function, line, file);
-}
-
-void __rrdset_check_wrlock(RRDSET *st, const char *file, const char *function, const unsigned long line) {
- debug(D_RRD_CALLS, "Checking write lock on chart '%s'", st->id);
-
- int ret = netdata_rwlock_tryrdlock(&st->rrdset_rwlock);
- if(ret == 0)
- fatal("RRDSET '%s' should be write-locked, but it is not, at function %s() at line %lu of file '%s'", st->id, function, line, file);
-}
-
-
-// ----------------------------------------------------------------------------
-// RRDSET index
-
-int rrdset_compare(void* a, void* b) {
- if(((RRDSET *)a)->hash < ((RRDSET *)b)->hash) return -1;
- else if(((RRDSET *)a)->hash > ((RRDSET *)b)->hash) return 1;
- else return strcmp(((RRDSET *)a)->id, ((RRDSET *)b)->id);
-}
-
-static RRDSET *rrdset_index_find(RRDHOST *host, const char *id, uint32_t hash) {
- RRDSET tmp;
- strncpyz(tmp.id, id, RRD_ID_LENGTH_MAX);
- tmp.hash = (hash)?hash:simple_hash(tmp.id);
-
- return (RRDSET *)avl_search_lock(&(host->rrdset_root_index), (avl *) &tmp);
-}
-
-// ----------------------------------------------------------------------------
-// RRDSET name index
-
-#define rrdset_from_avlname(avlname_ptr) ((RRDSET *)((avlname_ptr) - offsetof(RRDSET, avlname)))
-
-int rrdset_compare_name(void* a, void* b) {
- RRDSET *A = rrdset_from_avlname(a);
- RRDSET *B = rrdset_from_avlname(b);
-
- // fprintf(stderr, "COMPARING: %s with %s\n", A->name, B->name);
-
- if(A->hash_name < B->hash_name) return -1;
- else if(A->hash_name > B->hash_name) return 1;
- else return strcmp(A->name, B->name);
-}
-
-RRDSET *rrdset_index_add_name(RRDHOST *host, RRDSET *st) {
- void *result;
- // fprintf(stderr, "ADDING: %s (name: %s)\n", st->id, st->name);
- result = avl_insert_lock(&host->rrdset_root_index_name, (avl *) (&st->avlname));
- if(result) return rrdset_from_avlname(result);
- return NULL;
-}
-
-RRDSET *rrdset_index_del_name(RRDHOST *host, RRDSET *st) {
- void *result;
- // fprintf(stderr, "DELETING: %s (name: %s)\n", st->id, st->name);
- result = (RRDSET *)avl_remove_lock(&((host)->rrdset_root_index_name), (avl *)(&st->avlname));
- if(result) return rrdset_from_avlname(result);
- return NULL;
-}
-
-
-// ----------------------------------------------------------------------------
-// RRDSET - find charts
-
-static inline RRDSET *rrdset_index_find_name(RRDHOST *host, const char *name, uint32_t hash) {
- void *result = NULL;
- RRDSET tmp;
- tmp.name = name;
- tmp.hash_name = (hash)?hash:simple_hash(tmp.name);
-
- // fprintf(stderr, "SEARCHING: %s\n", name);
- result = avl_search_lock(&host->rrdset_root_index_name, (avl *) (&(tmp.avlname)));
- if(result) {
- RRDSET *st = rrdset_from_avlname(result);
- if(strcmp(st->magic, RRDSET_MAGIC) != 0)
- error("Search for RRDSET %s returned an invalid RRDSET %s (name %s)", name, st->id, st->name);
-
- // fprintf(stderr, "FOUND: %s\n", name);
- return rrdset_from_avlname(result);
- }
- // fprintf(stderr, "NOT FOUND: %s\n", name);
- return NULL;
-}
-
-inline RRDSET *rrdset_find(RRDHOST *host, const char *id) {
- debug(D_RRD_CALLS, "rrdset_find() for chart '%s' in host '%s'", id, host->hostname);
- RRDSET *st = rrdset_index_find(host, id, 0);
- return(st);
-}
-
-inline RRDSET *rrdset_find_bytype(RRDHOST *host, const char *type, const char *id) {
- debug(D_RRD_CALLS, "rrdset_find_bytype() for chart '%s.%s' in host '%s'", type, id, host->hostname);
-
- char buf[RRD_ID_LENGTH_MAX + 1];
- strncpyz(buf, type, RRD_ID_LENGTH_MAX - 1);
- strcat(buf, ".");
- int len = (int) strlen(buf);
- strncpyz(&buf[len], id, (size_t) (RRD_ID_LENGTH_MAX - len));
-
- return(rrdset_find(host, buf));
-}
-
-inline RRDSET *rrdset_find_byname(RRDHOST *host, const char *name) {
- debug(D_RRD_CALLS, "rrdset_find_byname() for chart '%s' in host '%s'", name, host->hostname);
- RRDSET *st = rrdset_index_find_name(host, name, 0);
- return(st);
-}
-
-// ----------------------------------------------------------------------------
-// RRDSET - rename charts
-
-char *rrdset_strncpyz_name(char *to, const char *from, size_t length) {
- char c, *p = to;
-
- while (length-- && (c = *from++)) {
- if(c != '.' && !isalnum(c))
- c = '_';
-
- *p++ = c;
- }
-
- *p = '\0';
-
- return to;
-}
-
-int rrdset_set_name(RRDSET *st, const char *name) {
- if(unlikely(st->name && !strcmp(st->name, name)))
- return 1;
-
- RRDHOST *host = st->rrdhost;
-
- debug(D_RRD_CALLS, "rrdset_set_name() old: '%s', new: '%s'", st->name?st->name:"", name);
-
- char b[CONFIG_MAX_VALUE + 1];
- char n[RRD_ID_LENGTH_MAX + 1];
-
- snprintfz(n, RRD_ID_LENGTH_MAX, "%s.%s", st->type, name);
- rrdset_strncpyz_name(b, n, CONFIG_MAX_VALUE);
-
- if(rrdset_index_find_name(host, b, 0)) {
- error("RRDSET: chart name '%s' on host '%s' already exists.", b, host->hostname);
- return 0;
- }
-
- if(st->name) {
- rrdset_index_del_name(host, st);
- st->name = config_set_default(st->config_section, "name", b);
- st->hash_name = simple_hash(st->name);
- rrdsetvar_rename_all(st);
- }
- else {
- st->name = config_get(st->config_section, "name", b);
- st->hash_name = simple_hash(st->name);
- }
-
- rrdset_wrlock(st);
- RRDDIM *rd;
- rrddim_foreach_write(rd, st)
- rrddimvar_rename_all(rd);
- rrdset_unlock(st);
-
- if(unlikely(rrdset_index_add_name(host, st) != st))
- error("RRDSET: INTERNAL ERROR: attempted to index duplicate chart name '%s'", st->name);
-
- return 1;
-}
-
-inline void rrdset_is_obsolete(RRDSET *st) {
- RRDHOST *host = st->rrdhost;
-
- if(unlikely(!(rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)))) {
- rrdset_flag_set(st, RRDSET_FLAG_OBSOLETE);
- rrdset_flag_clear(st, RRDSET_FLAG_EXPOSED_UPSTREAM);
-
- // the chart will not get more updates (data collection)
- // so, we have to push its definition now
- if(unlikely(host->rrdpush_send_enabled))
- rrdset_push_chart_definition(st);
- }
-}
-
-inline void rrdset_isnot_obsolete(RRDSET *st) {
- if(unlikely((rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE)))) {
- rrdset_flag_clear(st, RRDSET_FLAG_OBSOLETE);
- rrdset_flag_clear(st, RRDSET_FLAG_EXPOSED_UPSTREAM);
-
- // the chart will be pushed upstream automatically
- // due to data collection
- }
-}
-
-inline void rrdset_update_heterogeneous_flag(RRDSET *st) {
- RRDHOST *host = st->rrdhost;
- RRDDIM *rd;
-
- rrdset_flag_clear(st, RRDSET_FLAG_HOMEGENEOUS_CHECK);
-
- RRD_ALGORITHM algorithm = st->dimensions->algorithm;
- collected_number multiplier = abs(st->dimensions->multiplier);
- collected_number divisor = abs(st->dimensions->divisor);
-
- rrddim_foreach_read(rd, st) {
- if(algorithm != rd->algorithm || multiplier != abs(rd->multiplier) || divisor != abs(rd->divisor)) {
- if(!rrdset_flag_check(st, RRDSET_FLAG_HETEROGENEOUS)) {
- #ifdef NETDATA_INTERNAL_CHECKS
- info("Dimension '%s' added on chart '%s' of host '%s' is not homogeneous to other dimensions already present (algorithm is '%s' vs '%s', multiplier is " COLLECTED_NUMBER_FORMAT " vs " COLLECTED_NUMBER_FORMAT ", divisor is " COLLECTED_NUMBER_FORMAT " vs " COLLECTED_NUMBER_FORMAT ").",
- rd->name,
- st->name,
- host->hostname,
- rrd_algorithm_name(rd->algorithm), rrd_algorithm_name(algorithm),
- rd->multiplier, multiplier,
- rd->divisor, divisor
- );
- #endif
- rrdset_flag_set(st, RRDSET_FLAG_HETEROGENEOUS);
- }
- return;
- }
- }
-
- rrdset_flag_clear(st, RRDSET_FLAG_HETEROGENEOUS);
-}
-
-// ----------------------------------------------------------------------------
-// RRDSET - reset a chart
-
-void rrdset_reset(RRDSET *st) {
- debug(D_RRD_CALLS, "rrdset_reset() %s", st->name);
-
- st->last_collected_time.tv_sec = 0;
- st->last_collected_time.tv_usec = 0;
- st->last_updated.tv_sec = 0;
- st->last_updated.tv_usec = 0;
- st->current_entry = 0;
- st->counter = 0;
- st->counter_done = 0;
-
- RRDDIM *rd;
- rrddim_foreach_read(rd, st) {
- rd->last_collected_time.tv_sec = 0;
- rd->last_collected_time.tv_usec = 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(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(unlikely(mode == RRD_MEMORY_MODE_NONE || mode == RRD_MEMORY_MODE_ALLOC))
- return entries;
-
- long page = (size_t)sysconf(_SC_PAGESIZE);
- long size = sizeof(RRDDIM) + entries * sizeof(storage_number);
- if(unlikely(size % page)) {
- size -= (size % page);
- size += page;
-
- long n = (size - sizeof(RRDDIM)) / sizeof(storage_number);
- return n;
- }
-
- return entries;
-}
-
-static inline void last_collected_time_align(RRDSET *st) {
- st->last_collected_time.tv_sec -= st->last_collected_time.tv_sec % st->update_every;
-
- if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_STORE_FIRST)))
- st->last_collected_time.tv_usec = 0;
- else
- st->last_collected_time.tv_usec = 500000;
-}
-
-static inline void last_updated_time_align(RRDSET *st) {
- st->last_updated.tv_sec -= st->last_updated.tv_sec % st->update_every;
- st->last_updated.tv_usec = 0;
-}
-
-// ----------------------------------------------------------------------------
-// RRDSET - free a chart
-
-void rrdset_free(RRDSET *st) {
- if(unlikely(!st)) return;
-
- RRDHOST *host = st->rrdhost;
-
- rrdhost_check_wrlock(host); // make sure we have a write lock on the host
- rrdset_wrlock(st); // lock this RRDSET
-
- // info("Removing chart '%s' ('%s')", st->id, st->name);
-
- // ------------------------------------------------------------------------
- // remove it from the indexes
-
- if(unlikely(rrdset_index_del(host, st) != st))
- error("RRDSET: INTERNAL ERROR: attempt to remove from index chart '%s', removed a different chart.", st->id);
-
- rrdset_index_del_name(host, st);
-
- // ------------------------------------------------------------------------
- // free its children structures
-
- while(st->variables) rrdsetvar_free(st->variables);
- while(st->alarms) rrdsetcalc_unlink(st->alarms);
- while(st->dimensions) rrddim_free(st, st->dimensions);
-
- rrdfamily_free(host, st->rrdfamily);
-
- debug(D_RRD_CALLS, "RRDSET: Cleaning up remaining chart variables for host '%s', chart '%s'", host->hostname, st->id);
- rrdvar_free_remaining_variables(host, &st->rrdvar_root_index);
-
- // ------------------------------------------------------------------------
- // unlink it from the host
-
- if(st == host->rrdset_root) {
- host->rrdset_root = st->next;
- }
- else {
- // find the previous one
- RRDSET *s;
- for(s = host->rrdset_root; s && s->next != st ; s = s->next) ;
-
- // bypass it
- if(s) s->next = st->next;
- else error("Request to free RRDSET '%s': cannot find it under host '%s'", st->id, host->hostname);
- }
-
- rrdset_unlock(st);
-
- // ------------------------------------------------------------------------
- // free it
-
- netdata_rwlock_destroy(&st->rrdset_rwlock);
-
- // free directly allocated members
- freez(st->config_section);
- freez(st->plugin_name);
- freez(st->module_name);
-
- switch(st->rrd_memory_mode) {
- case RRD_MEMORY_MODE_SAVE:
- case RRD_MEMORY_MODE_MAP:
- case RRD_MEMORY_MODE_RAM:
- debug(D_RRD_CALLS, "Unmapping stats '%s'.", st->name);
- munmap(st, st->memsize);
- break;
-
- case RRD_MEMORY_MODE_ALLOC:
- case RRD_MEMORY_MODE_NONE:
- freez(st);
- break;
- }
-}
-
-void rrdset_save(RRDSET *st) {
- rrdset_check_rdlock(st);
-
- // info("Saving chart '%s' ('%s')", st->id, st->name);
-
- if(st->rrd_memory_mode == RRD_MEMORY_MODE_SAVE) {
- debug(D_RRD_STATS, "Saving stats '%s' to '%s'.", st->name, st->cache_filename);
- memory_file_save(st->cache_filename, st, st->memsize);
- }
-
- RRDDIM *rd;
- rrddim_foreach_read(rd, st) {
- if(likely(rd->rrd_memory_mode == RRD_MEMORY_MODE_SAVE)) {
- debug(D_RRD_STATS, "Saving dimension '%s' to '%s'.", rd->name, rd->cache_filename);
- memory_file_save(rd->cache_filename, rd, rd->memsize);
- }
- }
-}
-
-void rrdset_delete(RRDSET *st) {
- RRDDIM *rd;
-
- rrdset_check_rdlock(st);
-
- info("Deleting chart '%s' ('%s') from disk...", st->id, st->name);
-
- if(st->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || st->rrd_memory_mode == RRD_MEMORY_MODE_MAP) {
- info("Deleting chart header file '%s'.", st->cache_filename);
- if(unlikely(unlink(st->cache_filename) == -1))
- error("Cannot delete chart header file '%s'", st->cache_filename);
- }
-
- rrddim_foreach_read(rd, st) {
- if(likely(rd->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || rd->rrd_memory_mode == RRD_MEMORY_MODE_MAP)) {
- info("Deleting dimension file '%s'.", rd->cache_filename);
- if(unlikely(unlink(rd->cache_filename) == -1))
- error("Cannot delete dimension file '%s'", rd->cache_filename);
- }
- }
-
- recursively_delete_dir(st->cache_dir, "left-over chart");
-}
-
-// ----------------------------------------------------------------------------
-// RRDSET - create a chart
-
-static inline RRDSET *rrdset_find_on_create(RRDHOST *host, const char *fullid) {
- RRDSET *st = rrdset_find(host, fullid);
- if(unlikely(st)) {
- rrdset_isnot_obsolete(st);
- debug(D_RRD_CALLS, "RRDSET '%s', already exists.", fullid);
- return st;
- }
-
- return NULL;
-}
-
-RRDSET *rrdset_create_custom(
- RRDHOST *host
- , const char *type
- , const char *id
- , const char *name
- , const char *family
- , const char *context
- , const char *title
- , const char *units
- , const char *plugin
- , const char *module
- , long priority
- , int update_every
- , RRDSET_TYPE chart_type
- , RRD_MEMORY_MODE memory_mode
- , long history_entries
-) {
- if(!type || !type[0]) {
- fatal("Cannot create rrd stats without a type: id '%s', name '%s', family '%s', context '%s', title '%s', units '%s', plugin '%s', module '%s'."
- , (id && *id)?id:"<unset>"
- , (name && *name)?name:"<unset>"
- , (family && *family)?family:"<unset>"
- , (context && *context)?context:"<unset>"
- , (title && *title)?title:"<unset>"
- , (units && *units)?units:"<unset>"
- , (plugin && *plugin)?plugin:"<unset>"
- , (module && *module)?module:"<unset>"
- );
- return NULL;
- }
-
- if(!id || !id[0]) {
- fatal("Cannot create rrd stats without an id: type '%s', name '%s', family '%s', context '%s', title '%s', units '%s', plugin '%s', module '%s'."
- , type
- , (name && *name)?name:"<unset>"
- , (family && *family)?family:"<unset>"
- , (context && *context)?context:"<unset>"
- , (title && *title)?title:"<unset>"
- , (units && *units)?units:"<unset>"
- , (plugin && *plugin)?plugin:"<unset>"
- , (module && *module)?module:"<unset>"
- );
- return NULL;
- }
-
- // ------------------------------------------------------------------------
- // check if it already exists
-
- char fullid[RRD_ID_LENGTH_MAX + 1];
- snprintfz(fullid, RRD_ID_LENGTH_MAX, "%s.%s", type, id);
-
- RRDSET *st = rrdset_find_on_create(host, fullid);
- if(st) return st;
-
- rrdhost_wrlock(host);
-
- st = rrdset_find_on_create(host, fullid);
- if(st) {
- rrdhost_unlock(host);
- return st;
- }
-
- char fullfilename[FILENAME_MAX + 1];
-
- // ------------------------------------------------------------------------
- // compose the config_section for this chart
-
- char config_section[RRD_ID_LENGTH_MAX + 1];
- if(host == localhost)
- strcpy(config_section, fullid);
- else
- snprintfz(config_section, RRD_ID_LENGTH_MAX, "%s/%s", host->machine_guid, fullid);
-
- // ------------------------------------------------------------------------
- // get the options from the config, we need to create it
-
- long rentries = config_get_number(config_section, "history", history_entries);
- long entries = align_entries_to_pagesize(memory_mode, rentries);
- if(entries != rentries) entries = config_set_number(config_section, "history", entries);
-
- if(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(memory_mode == RRD_MEMORY_MODE_SAVE || memory_mode == RRD_MEMORY_MODE_MAP || memory_mode == RRD_MEMORY_MODE_RAM) {
- st = (RRDSET *) mymmap(
- (memory_mode == RRD_MEMORY_MODE_RAM)?NULL:fullfilename
- , size
- , ((memory_mode == RRD_MEMORY_MODE_MAP) ? MAP_SHARED : MAP_PRIVATE)
- , 0
- );
-
- if(st) {
- memset(&st->avl, 0, sizeof(avl));
- memset(&st->avlname, 0, sizeof(avl));
- memset(&st->rrdvar_root_index, 0, sizeof(avl_tree_lock));
- memset(&st->dimensions_index, 0, sizeof(avl_tree_lock));
- memset(&st->rrdset_rwlock, 0, sizeof(netdata_rwlock_t));
-
- st->name = NULL;
- st->config_section = NULL;
- st->type = NULL;
- st->family = NULL;
- st->title = NULL;
- st->units = NULL;
- st->context = NULL;
- st->cache_dir = NULL;
- st->plugin_name = NULL;
- st->module_name = NULL;
- st->dimensions = NULL;
- st->rrdfamily = NULL;
- st->rrdhost = NULL;
- st->next = NULL;
- st->variables = NULL;
- st->alarms = NULL;
- st->flags = 0x00000000;
-
- if(memory_mode == RRD_MEMORY_MODE_RAM) {
- memset(st, 0, size);
- }
- else {
- if(strcmp(st->magic, RRDSET_MAGIC) != 0) {
- info("Initializing file %s.", fullfilename);
- memset(st, 0, size);
- }
- else if(strcmp(st->id, fullid) != 0) {
- error("File %s contents are not for chart %s. Clearing it.", fullfilename, fullid);
- // munmap(st, size);
- // st = NULL;
- memset(st, 0, size);
- }
- else if(st->memsize != size || st->entries != entries) {
- error("File %s does not have the desired size. Clearing it.", fullfilename);
- memset(st, 0, size);
- }
- else if(st->update_every != update_every) {
- error("File %s does not have the desired update frequency. Clearing it.", fullfilename);
- memset(st, 0, size);
- }
- else if((now - st->last_updated.tv_sec) > update_every * entries) {
- error("File %s is too old. Clearing it.", fullfilename);
- memset(st, 0, size);
- }
- else if(st->last_updated.tv_sec > now + update_every) {
- 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) {
- st->update_every = update_every;
- last_updated_time_align(st);
- }
- }
-
- // make sure we have the right memory mode
- // even if we cleared the memory
- st->rrd_memory_mode = memory_mode;
- }
- }
-
- if(unlikely(!st)) {
- st = callocz(1, size);
- st->rrd_memory_mode = (memory_mode == RRD_MEMORY_MODE_NONE) ? RRD_MEMORY_MODE_NONE : RRD_MEMORY_MODE_ALLOC;
- }
-
- st->plugin_name = plugin?strdup(plugin):NULL;
- st->module_name = module?strdup(module):NULL;
-
- st->config_section = strdup(config_section);
- st->rrdhost = host;
- st->memsize = size;
- st->entries = entries;
- st->update_every = update_every;
-
- if(st->current_entry >= st->entries) st->current_entry = 0;
-
- strcpy(st->cache_filename, fullfilename);
- strcpy(st->magic, RRDSET_MAGIC);
-
- strcpy(st->id, fullid);
- st->hash = simple_hash(st->id);
-
- st->cache_dir = cache_dir;
-
- st->chart_type = rrdset_type_id(config_get(st->config_section, "chart type", rrdset_type_name(chart_type)));
- st->type = config_get(st->config_section, "type", type);
-
- st->family = config_get(st->config_section, "family", family?family:st->type);
- json_fix_string(st->family);
-
- st->units = config_get(st->config_section, "units", units?units:"");
- json_fix_string(st->units);
-
- st->context = config_get(st->config_section, "context", context?context:st->id);
- json_fix_string(st->context);
- st->hash_context = simple_hash(st->context);
-
- st->priority = config_get_number(st->config_section, "priority", priority);
- if(enabled)
- rrdset_flag_set(st, RRDSET_FLAG_ENABLED);
- else
- rrdset_flag_clear(st, RRDSET_FLAG_ENABLED);
-
- rrdset_flag_clear(st, RRDSET_FLAG_DETAIL);
- rrdset_flag_clear(st, RRDSET_FLAG_DEBUG);
- rrdset_flag_clear(st, RRDSET_FLAG_OBSOLETE);
- rrdset_flag_clear(st, RRDSET_FLAG_EXPOSED_UPSTREAM);
-
- // if(!strcmp(st->id, "disk_util.dm-0")) {
- // st->debug = 1;
- // error("enabled debugging for '%s'", st->id);
- // }
- // else error("not enabled debugging for '%s'", st->id);
-
- st->green = NAN;
- st->red = NAN;
-
- st->last_collected_time.tv_sec = 0;
- st->last_collected_time.tv_usec = 0;
- st->counter_done = 0;
-
- st->gap_when_lost_iterations_above = (int) (gap_when_lost_iterations_above + 2);
-
- st->last_accessed_time = 0;
- st->upstream_resync_time = 0;
-
- avl_init_lock(&st->dimensions_index, rrddim_compare);
- avl_init_lock(&st->rrdvar_root_index, rrdvar_compare);
-
- netdata_rwlock_init(&st->rrdset_rwlock);
-
- if(name && *name && rrdset_set_name(st, name))
- // we did set the name
- ;
- else
- // could not use the name, use the id
- rrdset_set_name(st, id);
-
- st->title = config_get(st->config_section, "title", title);
- json_fix_string(st->title);
-
- st->rrdfamily = rrdfamily_create(host, st->family);
-
- st->next = host->rrdset_root;
- host->rrdset_root = st;
-
- if(host->health_enabled) {
- rrdsetvar_create(st, "last_collected_t", RRDVAR_TYPE_TIME_T, &st->last_collected_time.tv_sec, RRDVAR_OPTION_DEFAULT);
- rrdsetvar_create(st, "collected_total_raw", RRDVAR_TYPE_TOTAL, &st->last_collected_total, RRDVAR_OPTION_DEFAULT);
- rrdsetvar_create(st, "green", RRDVAR_TYPE_CALCULATED, &st->green, RRDVAR_OPTION_DEFAULT);
- rrdsetvar_create(st, "red", RRDVAR_TYPE_CALCULATED, &st->red, RRDVAR_OPTION_DEFAULT);
- rrdsetvar_create(st, "update_every", RRDVAR_TYPE_INT, &st->update_every, RRDVAR_OPTION_DEFAULT);
- }
-
- if(unlikely(rrdset_index_add(host, st) != st))
- error("RRDSET: INTERNAL ERROR: attempt to index duplicate chart '%s'", st->id);
-
- rrdsetcalc_link_matching(st);
- rrdcalctemplate_link_matching(st);
-
- rrdhost_cleanup_obsolete_charts(host);
-
- rrdhost_unlock(host);
-
- return(st);
-}
-
-
-// ----------------------------------------------------------------------------
-// RRDSET - data collection iteration control
-
-inline void rrdset_next_usec_unfiltered(RRDSET *st, usec_t microseconds) {
- if(unlikely(!st->last_collected_time.tv_sec || !microseconds)) {
- // call the full next_usec() function
- rrdset_next_usec(st, microseconds);
- return;
- }
-
- st->usec_since_last_update = microseconds;
-}
-
-inline void rrdset_next_usec(RRDSET *st, usec_t microseconds) {
- struct timeval now;
- now_realtime_timeval(&now);
-
- 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
- microseconds = dt_usec(&now, &st->last_collected_time);
- }
- else {
- // microseconds has the time since the last collection
- 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
- info("RRD database for chart '%s' on host '%s' is %0.5" LONG_DOUBLE_MODIFIER " secs in the future (counter #%zu, update #%zu). Adjusting it to current time.", st->id, st->rrdhost->hostname, (LONG_DOUBLE)-since_last_usec / USEC_PER_SEC, st->counter, st->counter_done);
-
- 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);
-
- st->last_updated.tv_sec = now.tv_sec - st->update_every;
- st->last_updated.tv_usec = now.tv_usec;
- last_updated_time_align(st);
-
- microseconds = st->update_every * USEC_PER_SEC;
- }
- else if(unlikely((usec_t)since_last_usec > (usec_t)(st->update_every * 10 * USEC_PER_SEC))) {
- // oops! the database is too far behind
- info("RRD database for chart '%s' on host '%s' is %0.5" LONG_DOUBLE_MODIFIER " secs in the past (counter #%zu, update #%zu). Adjusting it to current time.", st->id, st->rrdhost->hostname, (LONG_DOUBLE)since_last_usec / USEC_PER_SEC, st->counter, st->counter_done);
-
- microseconds = (usec_t)since_last_usec;
- }
- }
-
- #ifdef NETDATA_INTERNAL_CHECKS
- debug(D_RRD_CALLS, "rrdset_next_usec() for chart %s with microseconds %llu", st->name, microseconds);
- rrdset_debug(st, "NEXT: %llu microseconds", microseconds);
- #endif
-
- st->usec_since_last_update = microseconds;
-}
-
-
-// ----------------------------------------------------------------------------
-// RRDSET - process the collected values for all dimensions of a chart
-
-static inline usec_t rrdset_init_last_collected_time(RRDSET *st) {
- now_realtime_timeval(&st->last_collected_time);
- last_collected_time_align(st);
-
- usec_t last_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "initialized last collected time to %0.3" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE)last_collect_ut / USEC_PER_SEC);
- #endif
-
- return last_collect_ut;
-}
-
-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);
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "updated last collected time to %0.3" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE)last_collect_ut / USEC_PER_SEC);
- #endif
-
- return last_collect_ut;
-}
-
-static inline usec_t 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;
-
- if(rrdset_flag_check(st, RRDSET_FLAG_STORE_FIRST))
- st->last_updated.tv_sec -= st->update_every;
-
- last_updated_time_align(st);
-
- usec_t last_updated_ut = st->last_updated.tv_sec * USEC_PER_SEC + st->last_updated.tv_usec;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "initialized last updated time to %0.3" LONG_DOUBLE_MODIFIER, (LONG_DOUBLE)last_updated_ut / USEC_PER_SEC);
- #endif
-
- return last_updated_ut;
-}
-
-static inline void rrdset_done_push_exclusive(RRDSET *st) {
-// usec_t update_every_ut = st->update_every * USEC_PER_SEC; // st->update_every in microseconds
-//
-// if(unlikely(st->usec_since_last_update > update_every_ut * remote_clock_resync_iterations)) {
-// error("Chart '%s' was last collected %llu usec before. Resetting it.", st->id, st->usec_since_last_update);
-// rrdset_reset(st);
-// st->usec_since_last_update = update_every_ut;
-// }
-
- 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);
-}
-
-
-static inline size_t rrdset_done_interpolate(
- RRDSET *st
- , usec_t update_every_ut
- , usec_t last_stored_ut
- , usec_t next_store_ut
- , usec_t last_collect_ut
- , usec_t now_collect_ut
- , char store_this_entry
- , uint32_t storage_flags
-) {
- RRDDIM *rd;
-
- size_t stored_entries = 0; // the number of entries we have stored in the db, during this call to rrdset_done()
-
- usec_t first_ut = last_stored_ut, last_ut = 0;
- ssize_t iterations = (ssize_t)((now_collect_ut - last_stored_ut) / (update_every_ut));
- if((now_collect_ut % (update_every_ut)) == 0) iterations++;
-
- size_t counter = st->counter;
- long current_entry = st->current_entry;
-
- for( ; next_store_ut <= now_collect_ut ; last_collect_ut = next_store_ut, next_store_ut += update_every_ut, iterations-- ) {
-
- #ifdef NETDATA_INTERNAL_CHECKS
- if(iterations < 0) { error("INTERNAL CHECK: %s: iterations calculation wrapped! first_ut = %llu, last_stored_ut = %llu, next_store_ut = %llu, now_collect_ut = %llu", st->name, first_ut, last_stored_ut, next_store_ut, now_collect_ut); }
- rrdset_debug(st, "last_stored_ut = %0.3" LONG_DOUBLE_MODIFIER " (last updated time)", (LONG_DOUBLE)last_stored_ut/USEC_PER_SEC);
- rrdset_debug(st, "next_store_ut = %0.3" LONG_DOUBLE_MODIFIER " (next interpolation point)", (LONG_DOUBLE)next_store_ut/USEC_PER_SEC);
- #endif
-
- last_ut = next_store_ut;
-
- rrddim_foreach_read(rd, st) {
- calculated_number new_value;
-
- switch(rd->algorithm) {
- case RRD_ALGORITHM_INCREMENTAL:
- new_value = (calculated_number)
- ( rd->calculated_value
- * (calculated_number)(next_store_ut - last_collect_ut)
- / (calculated_number)(now_collect_ut - last_collect_ut)
- );
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: CALC2 INC "
- CALCULATED_NUMBER_FORMAT " = "
- CALCULATED_NUMBER_FORMAT
- " * (%llu - %llu)"
- " / (%llu - %llu)"
- , rd->name
- , new_value
- , rd->calculated_value
- , next_store_ut, last_collect_ut
- , now_collect_ut, last_collect_ut
- );
- #endif
-
- rd->calculated_value -= new_value;
- new_value += rd->last_calculated_value;
- rd->last_calculated_value = 0;
- new_value /= (calculated_number)st->update_every;
-
- if(unlikely(next_store_ut - last_stored_ut < update_every_ut)) {
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: COLLECTION POINT IS SHORT " CALCULATED_NUMBER_FORMAT " - EXTRAPOLATING",
- rd->name
- , (calculated_number)(next_store_ut - last_stored_ut)
- );
- #endif
-
- new_value = new_value * (calculated_number)(st->update_every * USEC_PER_SEC) / (calculated_number)(next_store_ut - last_stored_ut);
- }
- break;
-
- case RRD_ALGORITHM_ABSOLUTE:
- case RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL:
- case RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL:
- default:
- if(iterations == 1) {
- // this is the last iteration
- // do not interpolate
- // just show the calculated value
-
- new_value = rd->calculated_value;
- }
- else {
- // we have missed an update
- // interpolate in the middle values
-
- new_value = (calculated_number)
- ( ( (rd->calculated_value - rd->last_calculated_value)
- * (calculated_number)(next_store_ut - last_collect_ut)
- / (calculated_number)(now_collect_ut - last_collect_ut)
- )
- + rd->last_calculated_value
- );
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: CALC2 DEF "
- CALCULATED_NUMBER_FORMAT " = ((("
- "(" CALCULATED_NUMBER_FORMAT " - " CALCULATED_NUMBER_FORMAT ")"
- " * %llu"
- " / %llu) + " CALCULATED_NUMBER_FORMAT
- , rd->name
- , new_value
- , rd->calculated_value, rd->last_calculated_value
- , (next_store_ut - first_ut)
- , (now_collect_ut - first_ut), rd->last_calculated_value
- );
- #endif
- }
- break;
- }
-
- if(unlikely(!store_this_entry)) {
- rd->values[current_entry] = SN_EMPTY_SLOT; //pack_storage_number(0, SN_NOT_EXISTS);
- continue;
- }
-
- if(likely(rd->updated && rd->collections_counter > 1 && iterations < st->gap_when_lost_iterations_above)) {
- rd->values[current_entry] = pack_storage_number(new_value, storage_flags );
- rd->last_stored_value = new_value;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: STORE[%ld] "
- CALCULATED_NUMBER_FORMAT " = " CALCULATED_NUMBER_FORMAT
- , rd->name
- , current_entry
- , unpack_storage_number(rd->values[current_entry]), new_value
- );
- #endif
-
- }
- else {
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: STORE[%ld] = NON EXISTING "
- , rd->name
- , current_entry
- );
- #endif
-
- rd->values[current_entry] = SN_EMPTY_SLOT; // pack_storage_number(0, SN_NOT_EXISTS);
- rd->last_stored_value = NAN;
- }
-
- stored_entries++;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_DEBUG))) {
- calculated_number t1 = new_value * (calculated_number)rd->multiplier / (calculated_number)rd->divisor;
- calculated_number t2 = unpack_storage_number(rd->values[current_entry]);
-
- calculated_number accuracy = accuracy_loss(t1, t2);
- debug(D_RRD_STATS, "%s/%s: UNPACK[%ld] = " CALCULATED_NUMBER_FORMAT " FLAGS=0x%08x (original = " CALCULATED_NUMBER_FORMAT ", accuracy loss = " CALCULATED_NUMBER_FORMAT "%%%s)"
- , st->id, rd->name
- , current_entry
- , t2
- , get_storage_number_flags(rd->values[current_entry])
- , t1
- , accuracy
- , (accuracy > ACCURACY_LOSS) ? " **TOO BIG** " : ""
- );
-
- rd->collected_volume += t1;
- rd->stored_volume += t2;
-
- accuracy = accuracy_loss(rd->collected_volume, rd->stored_volume);
- debug(D_RRD_STATS, "%s/%s: VOLUME[%ld] = " CALCULATED_NUMBER_FORMAT ", calculated = " CALCULATED_NUMBER_FORMAT ", accuracy loss = " CALCULATED_NUMBER_FORMAT "%%%s"
- , st->id, rd->name
- , current_entry
- , rd->stored_volume
- , rd->collected_volume
- , accuracy
- , (accuracy > ACCURACY_LOSS) ? " **TOO BIG** " : ""
- );
- }
- #endif
- }
- // reset the storage flags for the next point, if any;
- storage_flags = SN_EXISTS;
-
- counter++;
- current_entry = ((current_entry + 1) >= st->entries) ? 0 : current_entry + 1;
- last_stored_ut = next_store_ut;
- }
-
- st->counter = counter;
- st->current_entry = current_entry;
-
- if(likely(last_ut)) {
- st->last_updated.tv_sec = (time_t) (last_ut / USEC_PER_SEC);
- st->last_updated.tv_usec = 0;
- }
-
- return stored_entries;
-}
-
-static inline void rrdset_done_fill_the_gap(RRDSET *st) {
- usec_t update_every_ut = st->update_every * USEC_PER_SEC;
- usec_t now_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec;
-
- long c = 0, entries = st->entries;
- RRDDIM *rd;
- rrddim_foreach_read(rd, st) {
- usec_t next_store_ut = (st->last_updated.tv_sec + st->update_every) * USEC_PER_SEC;
- long current_entry = st->current_entry;
-
- for(c = 0; c < entries && next_store_ut <= now_collect_ut ; next_store_ut += update_every_ut, c++) {
- rd->values[current_entry] = SN_EMPTY_SLOT;
- current_entry = ((current_entry + 1) >= entries) ? 0 : current_entry + 1;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: STORE[%ld] = NON EXISTING (FILLED THE GAP)", rd->name, current_entry);
- #endif
- }
- }
-
- if(c > 0) {
- c--;
- st->last_updated.tv_sec += c * st->update_every;
-
- st->current_entry += c;
- if(st->current_entry >= st->entries)
- st->current_entry -= st->entries;
- }
-}
-
-void rrdset_done(RRDSET *st) {
- if(unlikely(netdata_exit)) return;
-
- if(unlikely(st->rrd_memory_mode == RRD_MEMORY_MODE_NONE)) {
- if(unlikely(st->rrdhost->rrdpush_send_enabled))
- rrdset_done_push_exclusive(st);
-
- return;
- }
-
- debug(D_RRD_CALLS, "rrdset_done() for chart %s", st->name);
-
- RRDDIM *rd;
-
- char
- store_this_entry = 1, // boolean: 1 = store this entry, 0 = don't store this entry
- first_entry = 0; // boolean: 1 = this is the first entry seen for this chart, 0 = all other entries
-
- usec_t
- last_collect_ut, // the timestamp in microseconds, of the last collected value
- now_collect_ut, // the timestamp in microseconds, of this collected value (this is NOW)
- last_stored_ut, // the timestamp in microseconds, of the last stored entry in the db
- next_store_ut, // the timestamp in microseconds, of the next entry to store in the db
- update_every_ut = st->update_every * USEC_PER_SEC; // st->update_every in microseconds
-
- netdata_thread_disable_cancelability();
-
- // a read lock is OK here
- rrdset_rdlock(st);
-
- if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_OBSOLETE))) {
- error("Chart '%s' has the OBSOLETE flag set, but it is collected.", st->id);
- rrdset_isnot_obsolete(st);
- }
-
- // check if the chart has a long time to be updated
- if(unlikely(st->usec_since_last_update > st->entries * update_every_ut)) {
- info("host '%s', chart %s: took too long to be updated (counter #%zu, update #%zu, %0.3" LONG_DOUBLE_MODIFIER " secs). Resetting it.", st->rrdhost->hostname, st->name, st->counter, st->counter_done, (LONG_DOUBLE)st->usec_since_last_update / USEC_PER_SEC);
- rrdset_reset(st);
- st->usec_since_last_update = update_every_ut;
- store_this_entry = 0;
- first_entry = 1;
- }
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "microseconds since last update: %llu", st->usec_since_last_update);
- #endif
-
- // set last_collected_time
- if(unlikely(!st->last_collected_time.tv_sec)) {
- // it is the first entry
- // set the last_collected_time to now
- last_collect_ut = rrdset_init_last_collected_time(st) - update_every_ut;
-
- // the first entry should not be stored
- store_this_entry = 0;
- first_entry = 1;
- }
- else {
- // it is not the first entry
- // calculate the proper last_collected_time, using usec_since_last_update
- last_collect_ut = rrdset_update_last_collected_time(st);
- }
-
- // if this set has not been updated in the past
- // we fake the last_update time to be = now - usec_since_last_update
- 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
- rrdset_init_last_updated_time(st);
-
- // the first entry should not be stored
- store_this_entry = 0;
- first_entry = 1;
- }
-
- // 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;
-
- // the first entry should not be stored
- store_this_entry = 0;
- first_entry = 1;
- }
-
- // these are the 3 variables that will help us in interpolation
- // last_stored_ut = the last time we added a value to the storage
- // now_collect_ut = the time the current value has been collected
- // next_store_ut = the time of the next interpolation point
- now_collect_ut = st->last_collected_time.tv_sec * USEC_PER_SEC + st->last_collected_time.tv_usec;
- last_stored_ut = st->last_updated.tv_sec * USEC_PER_SEC + st->last_updated.tv_usec;
- next_store_ut = (st->last_updated.tv_sec + st->update_every) * USEC_PER_SEC;
-
- if(unlikely(!st->counter_done)) {
- // if we have not collected metrics this session (st->counter_done == 0)
- // and we have collected metrics for this chart in the past (st->counter != 0)
- // fill the gap (the chart has been just loaded from disk)
- if(unlikely(st->counter)) {
- rrdset_done_fill_the_gap(st);
- last_stored_ut = st->last_updated.tv_sec * USEC_PER_SEC + st->last_updated.tv_usec;
- next_store_ut = (st->last_updated.tv_sec + st->update_every) * USEC_PER_SEC;
- }
-
- if(unlikely(rrdset_flag_check(st, RRDSET_FLAG_STORE_FIRST))) {
- store_this_entry = 1;
- last_collect_ut = next_store_ut - update_every_ut;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "Fixed first entry.");
- #endif
- }
- else {
- store_this_entry = 0;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "Will not store the next entry.");
- #endif
- }
- }
- st->counter_done++;
-
- if(unlikely(st->rrdhost->rrdpush_send_enabled))
- rrdset_done_push(st);
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "last_collect_ut = %0.3" LONG_DOUBLE_MODIFIER " (last collection time)", (LONG_DOUBLE)last_collect_ut/USEC_PER_SEC);
- rrdset_debug(st, "now_collect_ut = %0.3" LONG_DOUBLE_MODIFIER " (current collection time)", (LONG_DOUBLE)now_collect_ut/USEC_PER_SEC);
- rrdset_debug(st, "last_stored_ut = %0.3" LONG_DOUBLE_MODIFIER " (last updated time)", (LONG_DOUBLE)last_stored_ut/USEC_PER_SEC);
- rrdset_debug(st, "next_store_ut = %0.3" LONG_DOUBLE_MODIFIER " (next interpolation point)", (LONG_DOUBLE)next_store_ut/USEC_PER_SEC);
- #endif
-
- // calculate totals and count the dimensions
- int dimensions = 0;
- st->collected_total = 0;
- rrddim_foreach_read(rd, st) {
- dimensions++;
- if(likely(rd->updated))
- st->collected_total += rd->collected_value;
- }
-
- uint32_t storage_flags = SN_EXISTS;
-
- // process all dimensions to calculate their values
- // based on the collected figures only
- // at this stage we do not interpolate anything
- rrddim_foreach_read(rd, st) {
-
- if(unlikely(!rd->updated)) {
- rd->calculated_value = 0;
- continue;
- }
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: START "
- " last_collected_value = " COLLECTED_NUMBER_FORMAT
- " collected_value = " COLLECTED_NUMBER_FORMAT
- " last_calculated_value = " CALCULATED_NUMBER_FORMAT
- " calculated_value = " CALCULATED_NUMBER_FORMAT
- , rd->name
- , rd->last_collected_value
- , rd->collected_value
- , rd->last_calculated_value
- , rd->calculated_value
- );
- #endif
-
- switch(rd->algorithm) {
- case RRD_ALGORITHM_ABSOLUTE:
- rd->calculated_value = (calculated_number)rd->collected_value
- * (calculated_number)rd->multiplier
- / (calculated_number)rd->divisor;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: CALC ABS/ABS-NO-IN "
- CALCULATED_NUMBER_FORMAT " = "
- COLLECTED_NUMBER_FORMAT
- " * " CALCULATED_NUMBER_FORMAT
- " / " CALCULATED_NUMBER_FORMAT
- , rd->name
- , rd->calculated_value
- , rd->collected_value
- , (calculated_number)rd->multiplier
- , (calculated_number)rd->divisor
- );
- #endif
-
- break;
-
- case RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL:
- if(unlikely(!st->collected_total))
- rd->calculated_value = 0;
- else
- // the percentage of the current value
- // over the total of all dimensions
- rd->calculated_value =
- (calculated_number)100
- * (calculated_number)rd->collected_value
- / (calculated_number)st->collected_total;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: CALC PCENT-ROW "
- CALCULATED_NUMBER_FORMAT " = 100"
- " * " COLLECTED_NUMBER_FORMAT
- " / " COLLECTED_NUMBER_FORMAT
- , rd->name
- , rd->calculated_value
- , rd->collected_value
- , st->collected_total
- );
- #endif
-
- break;
-
- case RRD_ALGORITHM_INCREMENTAL:
- if(unlikely(rd->collections_counter <= 1)) {
- rd->calculated_value = 0;
- continue;
- }
-
- // if the new is smaller than the old (an overflow, or reset), set the old equal to the new
- // to reset the calculation (it will give zero as the calculation for this second)
- if(unlikely(rd->last_collected_value > rd->collected_value)) {
- debug(D_RRD_STATS, "%s.%s: RESET or OVERFLOW. Last collected value = " COLLECTED_NUMBER_FORMAT ", current = " COLLECTED_NUMBER_FORMAT
- , st->name, rd->name
- , rd->last_collected_value
- , rd->collected_value);
-
- if(!(rrddim_flag_check(rd, RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS)))
- storage_flags = SN_EXISTS_RESET;
-
- rd->last_collected_value = rd->collected_value;
- }
-
- rd->calculated_value +=
- (calculated_number)(rd->collected_value - rd->last_collected_value)
- * (calculated_number)rd->multiplier
- / (calculated_number)rd->divisor;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: CALC INC PRE "
- CALCULATED_NUMBER_FORMAT " = ("
- COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT
- ")"
- " * " CALCULATED_NUMBER_FORMAT
- " / " CALCULATED_NUMBER_FORMAT
- , rd->name
- , rd->calculated_value
- , rd->collected_value, rd->last_collected_value
- , (calculated_number)rd->multiplier
- , (calculated_number)rd->divisor
- );
- #endif
-
- break;
-
- case RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL:
- if(unlikely(rd->collections_counter <= 1)) {
- rd->calculated_value = 0;
- continue;
- }
-
- // if the new is smaller than the old (an overflow, or reset), set the old equal to the new
- // to reset the calculation (it will give zero as the calculation for this second)
- if(unlikely(rd->last_collected_value > rd->collected_value)) {
- debug(D_RRD_STATS, "%s.%s: RESET or OVERFLOW. Last collected value = " COLLECTED_NUMBER_FORMAT ", current = " COLLECTED_NUMBER_FORMAT
- , st->name, rd->name
- , rd->last_collected_value
- , rd->collected_value
- );
-
- if(!(rrddim_flag_check(rd, RRDDIM_FLAG_DONT_DETECT_RESETS_OR_OVERFLOWS)))
- storage_flags = SN_EXISTS_RESET;
-
- rd->last_collected_value = rd->collected_value;
- }
-
- // the percentage of the current increment
- // over the increment of all dimensions together
- if(unlikely(st->collected_total == st->last_collected_total))
- rd->calculated_value = 0;
- else
- rd->calculated_value =
- (calculated_number)100
- * (calculated_number)(rd->collected_value - rd->last_collected_value)
- / (calculated_number)(st->collected_total - st->last_collected_total);
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: CALC PCENT-DIFF "
- CALCULATED_NUMBER_FORMAT " = 100"
- " * (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")"
- " / (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")"
- , rd->name
- , rd->calculated_value
- , rd->collected_value, rd->last_collected_value
- , st->collected_total, st->last_collected_total
- );
- #endif
-
- break;
-
- default:
- // make the default zero, to make sure
- // it gets noticed when we add new types
- rd->calculated_value = 0;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: CALC "
- CALCULATED_NUMBER_FORMAT " = 0"
- , rd->name
- , rd->calculated_value
- );
- #endif
-
- break;
- }
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: PHASE2 "
- " last_collected_value = " COLLECTED_NUMBER_FORMAT
- " collected_value = " COLLECTED_NUMBER_FORMAT
- " last_calculated_value = " CALCULATED_NUMBER_FORMAT
- " calculated_value = " CALCULATED_NUMBER_FORMAT
- , rd->name
- , rd->last_collected_value
- , rd->collected_value
- , rd->last_calculated_value
- , rd->calculated_value
- );
- #endif
-
- }
-
- // at this point we have all the calculated values ready
- // it is now time to interpolate values on a second boundary
-
-#ifdef NETDATA_INTERNAL_CHECKS
- if(unlikely(now_collect_ut < next_store_ut)) {
- // this is collected in the same interpolation point
- rrdset_debug(st, "THIS IS IN THE SAME INTERPOLATION POINT");
- info("INTERNAL CHECK: host '%s', chart '%s' is collected in the same interpolation point: short by %llu microseconds", st->rrdhost->hostname, st->name, next_store_ut - now_collect_ut);
- }
-#endif
-
- rrdset_done_interpolate(st
- , update_every_ut
- , last_stored_ut
- , next_store_ut
- , last_collect_ut
- , now_collect_ut
- , store_this_entry
- , storage_flags
- );
-
- st->last_collected_total = st->collected_total;
-
- rrddim_foreach_read(rd, st) {
- if(unlikely(!rd->updated))
- continue;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: setting last_collected_value (old: " COLLECTED_NUMBER_FORMAT ") to last_collected_value (new: " COLLECTED_NUMBER_FORMAT ")", rd->name, rd->last_collected_value, rd->collected_value);
- #endif
-
- rd->last_collected_value = rd->collected_value;
-
- switch(rd->algorithm) {
- case RRD_ALGORITHM_INCREMENTAL:
- if(unlikely(!first_entry)) {
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: setting last_calculated_value (old: " CALCULATED_NUMBER_FORMAT ") to last_calculated_value (new: " CALCULATED_NUMBER_FORMAT ")", rd->name, rd->last_calculated_value + rd->calculated_value, rd->calculated_value);
- #endif
-
- rd->last_calculated_value += rd->calculated_value;
- }
- else {
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "THIS IS THE FIRST POINT");
- #endif
- }
- break;
-
- case RRD_ALGORITHM_ABSOLUTE:
- case RRD_ALGORITHM_PCENT_OVER_ROW_TOTAL:
- case RRD_ALGORITHM_PCENT_OVER_DIFF_TOTAL:
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: setting last_calculated_value (old: " CALCULATED_NUMBER_FORMAT ") to last_calculated_value (new: " CALCULATED_NUMBER_FORMAT ")", rd->name, rd->last_calculated_value, rd->calculated_value);
- #endif
-
- rd->last_calculated_value = rd->calculated_value;
- break;
- }
-
- rd->calculated_value = 0;
- rd->collected_value = 0;
- rd->updated = 0;
-
- #ifdef NETDATA_INTERNAL_CHECKS
- rrdset_debug(st, "%s: END "
- " last_collected_value = " COLLECTED_NUMBER_FORMAT
- " collected_value = " COLLECTED_NUMBER_FORMAT
- " last_calculated_value = " CALCULATED_NUMBER_FORMAT
- " calculated_value = " CALCULATED_NUMBER_FORMAT
- , rd->name
- , rd->last_collected_value
- , rd->collected_value
- , rd->last_calculated_value
- , rd->calculated_value
- );
- #endif
-
- }
-
- // ALL DONE ABOUT THE DATA UPDATE
- // --------------------------------------------------------------------
-
-/*
- // find if there are any obsolete dimensions (not updated recently)
- if(unlikely(rrd_delete_unupdated_dimensions)) {
-
- for( rd = st->dimensions; likely(rd) ; rd = rd->next )
- if((rd->last_collected_time.tv_sec + (rrd_delete_unupdated_dimensions * st->update_every)) < st->last_collected_time.tv_sec)
- break;
-
- if(unlikely(rd)) {
- RRDDIM *last;
- // there is dimension to free
- // upgrade our read lock to a write lock
- rrdset_unlock(st);
- rrdset_wrlock(st);
-
- for( rd = st->dimensions, last = NULL ; likely(rd) ; ) {
- // remove it only it is not updated in rrd_delete_unupdated_dimensions seconds
-
- if(unlikely((rd->last_collected_time.tv_sec + (rrd_delete_unupdated_dimensions * st->update_every)) < st->last_collected_time.tv_sec)) {
- info("Removing obsolete dimension '%s' (%s) of '%s' (%s).", rd->name, rd->id, st->name, st->id);
-
- if(unlikely(!last)) {
- st->dimensions = rd->next;
- rd->next = NULL;
- rrddim_free(st, rd);
- rd = st->dimensions;
- continue;
- }
- else {
- last->next = rd->next;
- rd->next = NULL;
- rrddim_free(st, rd);
- rd = last->next;
- continue;
- }
- }
-
- last = rd;
- rd = rd->next;
- }
-
- if(unlikely(!st->dimensions)) {
- info("Disabling chart %s (%s) since it does not have any dimensions", st->name, st->id);
- st->enabled = 0;
- }
- }
- }
-*/
-
- rrdset_unlock(st);
-
- netdata_thread_enable_cancelability();
-}