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authorLennart Weller <lhw@ring0.de>2016-09-05 08:27:21 +0000
committerLennart Weller <lhw@ring0.de>2016-09-05 08:27:21 +0000
commit1746898cefcb17f58b5cf27b4dad3d28236f1152 (patch)
tree9207f191cf39bbd077a1e1c73d6e82123e2fc710 /src/rrd.c
parentImported Upstream version 1.2.0+dfsg (diff)
downloadnetdata-1746898cefcb17f58b5cf27b4dad3d28236f1152.tar.xz
netdata-1746898cefcb17f58b5cf27b4dad3d28236f1152.zip
Imported Upstream version 1.3.0+dfsgupstream/1.3.0+dfsg
Diffstat (limited to 'src/rrd.c')
-rw-r--r--src/rrd.c2363
1 files changed, 1275 insertions, 1088 deletions
diff --git a/src/rrd.c b/src/rrd.c
index ee23da0c2..61f99eda8 100644
--- a/src/rrd.c
+++ b/src/rrd.c
@@ -1,24 +1,4 @@
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stddef.h>
-#include <string.h>
-#include <unistd.h>
-#include <time.h>
-#include <sys/time.h>
-#include <sys/mman.h>
-#include <pthread.h>
-#include <errno.h>
-#include <ctype.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <stdlib.h>
-
#include "common.h"
-#include "log.h"
-#include "appconfig.h"
-
-#include "rrd.h"
#define RRD_DEFAULT_GAP_INTERPOLATIONS 1
@@ -32,36 +12,143 @@ int rrd_delete_unupdated_dimensions = 0;
int rrd_update_every = UPDATE_EVERY;
int rrd_default_history_entries = RRD_DEFAULT_HISTORY_ENTRIES;
+int rrd_memory_mode = RRD_MEMORY_MODE_SAVE;
-RRDSET *rrdset_root = NULL;
-pthread_rwlock_t rrdset_root_rwlock = PTHREAD_RWLOCK_INITIALIZER;
+static int rrdset_compare(void* a, void* b);
+static int rrdset_compare_name(void* a, void* b);
+static int rrdfamily_compare(void *a, void *b);
-int rrd_memory_mode = RRD_MEMORY_MODE_SAVE;
+// ----------------------------------------------------------------------------
+// RRDHOST
+
+RRDHOST localhost = {
+ .hostname = "localhost",
+ .rrdset_root = NULL,
+ .rrdset_root_rwlock = PTHREAD_RWLOCK_INITIALIZER,
+ .rrdset_root_index = {
+ { NULL, rrdset_compare },
+ AVL_LOCK_INITIALIZER
+ },
+ .rrdset_root_index_name = {
+ { NULL, rrdset_compare_name },
+ AVL_LOCK_INITIALIZER
+ },
+ .rrdfamily_root_index = {
+ { NULL, rrdfamily_compare },
+ AVL_LOCK_INITIALIZER
+ },
+ .variables_root_index = {
+ { NULL, rrdvar_compare },
+ AVL_LOCK_INITIALIZER
+ },
+ .health_log = {
+ .nextid = 1,
+ .count = 0,
+ .max = 1000,
+ .alarms = NULL,
+ .alarm_log_rwlock = PTHREAD_RWLOCK_INITIALIZER
+ }
+};
+
+void rrdhost_rwlock(RRDHOST *host) {
+ pthread_rwlock_wrlock(&host->rrdset_root_rwlock);
+}
+
+void rrdhost_rdlock(RRDHOST *host) {
+ pthread_rwlock_rdlock(&host->rrdset_root_rwlock);
+}
+
+void rrdhost_unlock(RRDHOST *host) {
+ pthread_rwlock_unlock(&host->rrdset_root_rwlock);
+}
+
+void rrdhost_check_rdlock_int(RRDHOST *host, const char *file, const char *function, const unsigned long line) {
+ int ret = pthread_rwlock_trywrlock(&host->rrdset_root_rwlock);
+
+ if(ret == 0)
+ fatal("RRDHOST '%s' should be read-locked, but it is not, at function %s() at line %lu of file '%s'", host->hostname, function, line, file);
+}
+
+void rrdhost_check_wrlock_int(RRDHOST *host, const char *file, const char *function, const unsigned long line) {
+ int ret = pthread_rwlock_tryrdlock(&host->rrdset_root_rwlock);
+
+ if(ret == 0)
+ fatal("RRDHOST '%s' should be write-locked, but it is not, at function %s() at line %lu of file '%s'", host->hostname, function, line, file);
+}
+
+// ----------------------------------------------------------------------------
+// RRDFAMILY index
+
+static int rrdfamily_compare(void *a, void *b) {
+ if(((RRDFAMILY *)a)->hash_family < ((RRDFAMILY *)b)->hash_family) return -1;
+ else if(((RRDFAMILY *)a)->hash_family > ((RRDFAMILY *)b)->hash_family) return 1;
+ else return strcmp(((RRDFAMILY *)a)->family, ((RRDFAMILY *)b)->family);
+}
+
+#define rrdfamily_index_add(host, rc) (RRDFAMILY *)avl_insert_lock(&((host)->rrdfamily_root_index), (avl *)(rc))
+#define rrdfamily_index_del(host, rc) (RRDFAMILY *)avl_remove_lock(&((host)->rrdfamily_root_index), (avl *)(rc))
+
+static RRDFAMILY *rrdfamily_index_find(RRDHOST *host, const char *id, uint32_t hash) {
+ RRDFAMILY tmp;
+ tmp.family = id;
+ tmp.hash_family = (hash)?hash:simple_hash(tmp.family);
+
+ return (RRDFAMILY *)avl_search_lock(&(host->rrdfamily_root_index), (avl *) &tmp);
+}
+
+RRDFAMILY *rrdfamily_create(const char *id) {
+ RRDFAMILY *rc = rrdfamily_index_find(&localhost, id, 0);
+ if(!rc) {
+ rc = callocz(1, sizeof(RRDFAMILY));
+
+ rc->family = strdupz(id);
+ rc->hash_family = simple_hash(rc->family);
+
+ // initialize the variables index
+ avl_init_lock(&rc->variables_root_index, rrdvar_compare);
+ RRDFAMILY *ret = rrdfamily_index_add(&localhost, rc);
+ if(ret != rc)
+ fatal("INTERNAL ERROR: Expected to INSERT RRDFAMILY '%s' into index, but inserted '%s'.", rc->family, (ret)?ret->family:"NONE");
+ }
+
+ rc->use_count++;
+ return rc;
+}
+
+void rrdfamily_free(RRDFAMILY *rc) {
+ rc->use_count--;
+ if(!rc->use_count) {
+ RRDFAMILY *ret = rrdfamily_index_del(&localhost, rc);
+ if(ret != rc)
+ fatal("INTERNAL ERROR: Expected to DELETE RRDFAMILY '%s' from index, but deleted '%s'.", rc->family, (ret)?ret->family:"NONE");
+
+ if(rc->variables_root_index.avl_tree.root != NULL)
+ fatal("INTERNAL ERROR: Variables index of RRDFAMILY '%s' that is freed, is not empty.", rc->family);
+
+ freez((void *)rc->family);
+ freez(rc);
+ }
+}
// ----------------------------------------------------------------------------
// RRDSET index
static 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);
+ 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);
}
-avl_tree_lock rrdset_root_index = {
- { NULL, rrdset_compare },
- AVL_LOCK_INITIALIZER
-};
-
-#define rrdset_index_add(st) avl_insert_lock(&rrdset_root_index, (avl *)(st))
-#define rrdset_index_del(st) avl_remove_lock(&rrdset_root_index, (avl *)(st))
+#define rrdset_index_add(host, st) (RRDSET *)avl_insert_lock(&((host)->rrdset_root_index), (avl *)(st))
+#define rrdset_index_del(host, st) (RRDSET *)avl_remove_lock(&((host)->rrdset_root_index), (avl *)(st))
-static RRDSET *rrdset_index_find(const char *id, uint32_t hash) {
- RRDSET tmp;
- strncpyz(tmp.id, id, RRD_ID_LENGTH_MAX);
- tmp.hash = (hash)?hash:simple_hash(tmp.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(&(rrdset_root_index), (avl *) &tmp);
+ return (RRDSET *)avl_search_lock(&(host->rrdset_root_index), (avl *) &tmp);
}
// ----------------------------------------------------------------------------
@@ -70,46 +157,50 @@ static RRDSET *rrdset_index_find(const char *id, uint32_t hash) {
#define rrdset_from_avlname(avlname_ptr) ((RRDSET *)((avlname_ptr) - offsetof(RRDSET, avlname)))
static int rrdset_compare_name(void* a, void* b) {
- RRDSET *A = rrdset_from_avlname(a);
- RRDSET *B = rrdset_from_avlname(b);
+ RRDSET *A = rrdset_from_avlname(a);
+ RRDSET *B = rrdset_from_avlname(b);
- // fprintf(stderr, "COMPARING: %s with %s\n", A->name, B->name);
+ // 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);
+ 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);
}
-avl_tree_lock rrdset_root_index_name = {
- { NULL, rrdset_compare_name },
- AVL_LOCK_INITIALIZER
-};
+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;
+}
-int rrdset_index_add_name(RRDSET *st) {
- // fprintf(stderr, "ADDING: %s (name: %s)\n", st->id, st->name);
- return avl_insert_lock(&rrdset_root_index_name, (avl *) (&st->avlname));
+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;
}
-#define rrdset_index_del_name(st) avl_remove_lock(&rrdset_root_index_name, (avl *)(&st->avlname))
-
-static RRDSET *rrdset_index_find_name(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(&(rrdset_root_index_name), (avl *) (&(tmp.avlname)));
- if(result) {
- RRDSET *st = rrdset_from_avlname(result);
- if(strcmp(st->magic, RRDSET_MAGIC))
- 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;
+static 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))
+ 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;
}
@@ -117,20 +208,20 @@ static RRDSET *rrdset_index_find_name(const char *name, uint32_t hash) {
// RRDDIM index
static int rrddim_compare(void* a, void* b) {
- if(((RRDDIM *)a)->hash < ((RRDDIM *)b)->hash) return -1;
- else if(((RRDDIM *)a)->hash > ((RRDDIM *)b)->hash) return 1;
- else return strcmp(((RRDDIM *)a)->id, ((RRDDIM *)b)->id);
+ if(((RRDDIM *)a)->hash < ((RRDDIM *)b)->hash) return -1;
+ else if(((RRDDIM *)a)->hash > ((RRDDIM *)b)->hash) return 1;
+ else return strcmp(((RRDDIM *)a)->id, ((RRDDIM *)b)->id);
}
#define rrddim_index_add(st, rd) avl_insert_lock(&((st)->dimensions_index), (avl *)(rd))
#define rrddim_index_del(st,rd ) avl_remove_lock(&((st)->dimensions_index), (avl *)(rd))
static RRDDIM *rrddim_index_find(RRDSET *st, const char *id, uint32_t hash) {
- RRDDIM tmp;
- strncpyz(tmp.id, id, RRD_ID_LENGTH_MAX);
- tmp.hash = (hash)?hash:simple_hash(tmp.id);
+ RRDDIM tmp;
+ strncpyz(tmp.id, id, RRD_ID_LENGTH_MAX);
+ tmp.hash = (hash)?hash:simple_hash(tmp.id);
- return (RRDDIM *)avl_search_lock(&(st->dimensions_index), (avl *) &tmp);
+ return (RRDDIM *)avl_search_lock(&(st->dimensions_index), (avl *) &tmp);
}
// ----------------------------------------------------------------------------
@@ -138,29 +229,29 @@ static RRDDIM *rrddim_index_find(RRDSET *st, const char *id, uint32_t hash) {
int rrdset_type_id(const char *name)
{
- if(unlikely(strcmp(name, RRDSET_TYPE_AREA_NAME) == 0)) return RRDSET_TYPE_AREA;
- else if(unlikely(strcmp(name, RRDSET_TYPE_STACKED_NAME) == 0)) return RRDSET_TYPE_STACKED;
- else if(unlikely(strcmp(name, RRDSET_TYPE_LINE_NAME) == 0)) return RRDSET_TYPE_LINE;
- return RRDSET_TYPE_LINE;
+ if(unlikely(strcmp(name, RRDSET_TYPE_AREA_NAME) == 0)) return RRDSET_TYPE_AREA;
+ else if(unlikely(strcmp(name, RRDSET_TYPE_STACKED_NAME) == 0)) return RRDSET_TYPE_STACKED;
+ else if(unlikely(strcmp(name, RRDSET_TYPE_LINE_NAME) == 0)) return RRDSET_TYPE_LINE;
+ return RRDSET_TYPE_LINE;
}
const char *rrdset_type_name(int chart_type)
{
- static char line[] = RRDSET_TYPE_LINE_NAME;
- static char area[] = RRDSET_TYPE_AREA_NAME;
- static char stacked[] = RRDSET_TYPE_STACKED_NAME;
+ static char line[] = RRDSET_TYPE_LINE_NAME;
+ static char area[] = RRDSET_TYPE_AREA_NAME;
+ static char stacked[] = RRDSET_TYPE_STACKED_NAME;
- switch(chart_type) {
- case RRDSET_TYPE_LINE:
- return line;
+ switch(chart_type) {
+ case RRDSET_TYPE_LINE:
+ return line;
- case RRDSET_TYPE_AREA:
- return area;
+ case RRDSET_TYPE_AREA:
+ return area;
- case RRDSET_TYPE_STACKED:
- return stacked;
- }
- return line;
+ case RRDSET_TYPE_STACKED:
+ return stacked;
+ }
+ return line;
}
// ----------------------------------------------------------------------------
@@ -168,33 +259,33 @@ const char *rrdset_type_name(int chart_type)
const char *rrd_memory_mode_name(int id)
{
- static const char ram[] = RRD_MEMORY_MODE_RAM_NAME;
- static const char map[] = RRD_MEMORY_MODE_MAP_NAME;
- static const char save[] = RRD_MEMORY_MODE_SAVE_NAME;
+ static const char ram[] = RRD_MEMORY_MODE_RAM_NAME;
+ static const char map[] = RRD_MEMORY_MODE_MAP_NAME;
+ static const char save[] = RRD_MEMORY_MODE_SAVE_NAME;
- switch(id) {
- case RRD_MEMORY_MODE_RAM:
- return ram;
+ switch(id) {
+ case RRD_MEMORY_MODE_RAM:
+ return ram;
- case RRD_MEMORY_MODE_MAP:
- return map;
+ case RRD_MEMORY_MODE_MAP:
+ return map;
- case RRD_MEMORY_MODE_SAVE:
- default:
- return save;
- }
+ case RRD_MEMORY_MODE_SAVE:
+ default:
+ return save;
+ }
- return save;
+ return save;
}
int rrd_memory_mode_id(const char *name)
{
- if(unlikely(!strcmp(name, RRD_MEMORY_MODE_RAM_NAME)))
- return RRD_MEMORY_MODE_RAM;
- else if(unlikely(!strcmp(name, RRD_MEMORY_MODE_MAP_NAME)))
- return RRD_MEMORY_MODE_MAP;
+ if(unlikely(!strcmp(name, RRD_MEMORY_MODE_RAM_NAME)))
+ return RRD_MEMORY_MODE_RAM;
+ else if(unlikely(!strcmp(name, RRD_MEMORY_MODE_MAP_NAME)))
+ return RRD_MEMORY_MODE_MAP;
- return RRD_MEMORY_MODE_SAVE;
+ return RRD_MEMORY_MODE_SAVE;
}
// ----------------------------------------------------------------------------
@@ -202,67 +293,73 @@ int rrd_memory_mode_id(const char *name)
int rrddim_algorithm_id(const char *name)
{
- if(strcmp(name, RRDDIM_INCREMENTAL_NAME) == 0) return RRDDIM_INCREMENTAL;
- if(strcmp(name, RRDDIM_ABSOLUTE_NAME) == 0) return RRDDIM_ABSOLUTE;
- if(strcmp(name, RRDDIM_PCENT_OVER_ROW_TOTAL_NAME) == 0) return RRDDIM_PCENT_OVER_ROW_TOTAL;
- if(strcmp(name, RRDDIM_PCENT_OVER_DIFF_TOTAL_NAME) == 0) return RRDDIM_PCENT_OVER_DIFF_TOTAL;
- return RRDDIM_ABSOLUTE;
+ if(strcmp(name, RRDDIM_INCREMENTAL_NAME) == 0) return RRDDIM_INCREMENTAL;
+ if(strcmp(name, RRDDIM_ABSOLUTE_NAME) == 0) return RRDDIM_ABSOLUTE;
+ if(strcmp(name, RRDDIM_PCENT_OVER_ROW_TOTAL_NAME) == 0) return RRDDIM_PCENT_OVER_ROW_TOTAL;
+ if(strcmp(name, RRDDIM_PCENT_OVER_DIFF_TOTAL_NAME) == 0) return RRDDIM_PCENT_OVER_DIFF_TOTAL;
+ return RRDDIM_ABSOLUTE;
}
const char *rrddim_algorithm_name(int chart_type)
{
- static char absolute[] = RRDDIM_ABSOLUTE_NAME;
- static char incremental[] = RRDDIM_INCREMENTAL_NAME;
- static char percentage_of_absolute_row[] = RRDDIM_PCENT_OVER_ROW_TOTAL_NAME;
- static char percentage_of_incremental_row[] = RRDDIM_PCENT_OVER_DIFF_TOTAL_NAME;
+ static char absolute[] = RRDDIM_ABSOLUTE_NAME;
+ static char incremental[] = RRDDIM_INCREMENTAL_NAME;
+ static char percentage_of_absolute_row[] = RRDDIM_PCENT_OVER_ROW_TOTAL_NAME;
+ static char percentage_of_incremental_row[] = RRDDIM_PCENT_OVER_DIFF_TOTAL_NAME;
- switch(chart_type) {
- case RRDDIM_ABSOLUTE:
- return absolute;
+ switch(chart_type) {
+ case RRDDIM_ABSOLUTE:
+ return absolute;
- case RRDDIM_INCREMENTAL:
- return incremental;
+ case RRDDIM_INCREMENTAL:
+ return incremental;
- case RRDDIM_PCENT_OVER_ROW_TOTAL:
- return percentage_of_absolute_row;
+ case RRDDIM_PCENT_OVER_ROW_TOTAL:
+ return percentage_of_absolute_row;
- case RRDDIM_PCENT_OVER_DIFF_TOTAL:
- return percentage_of_incremental_row;
- }
- return absolute;
+ case RRDDIM_PCENT_OVER_DIFF_TOTAL:
+ return percentage_of_incremental_row;
+ }
+ return absolute;
}
// ----------------------------------------------------------------------------
// chart names
-char *rrdset_strncpy_name(char *to, const char *from, int length)
+char *rrdset_strncpyz_name(char *to, const char *from, size_t length)
{
- int i;
- for(i = 0; i < length && from[i] ;i++) {
- if(from[i] == '.' || isalpha(from[i]) || isdigit(from[i])) to[i] = from[i];
- else to[i] = '_';
- }
- if(i < length) to[i] = '\0';
- to[length - 1] = '\0';
-
- return to;
+ char c, *p = to;
+
+ while (length-- && (c = *from++)) {
+ if(c != '.' && !isalnum(c))
+ c = '_';
+
+ *p++ = c;
+ }
+
+ *p = '\0';
+
+ return to;
}
void rrdset_set_name(RRDSET *st, const char *name)
{
- debug(D_RRD_CALLS, "rrdset_set_name() old: %s, new: %s", st->name, name);
+ debug(D_RRD_CALLS, "rrdset_set_name() old: %s, new: %s", st->name, name);
- if(st->name) rrdset_index_del_name(st);
+ if(st->name) {
+ rrdset_index_del_name(&localhost, st);
+ rrdsetvar_rename_all(st);
+ }
- char b[CONFIG_MAX_VALUE + 1];
- char n[RRD_ID_LENGTH_MAX + 1];
+ 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_strncpy_name(b, n, CONFIG_MAX_VALUE);
- st->name = config_get(st->id, "name", b);
- st->hash_name = simple_hash(st->name);
+ snprintfz(n, RRD_ID_LENGTH_MAX, "%s.%s", st->type, name);
+ rrdset_strncpyz_name(b, n, CONFIG_MAX_VALUE);
+ st->name = config_get(st->id, "name", b);
+ st->hash_name = simple_hash(st->name);
- rrdset_index_add_name(st);
+ rrdset_index_add_name(&localhost, st);
}
// ----------------------------------------------------------------------------
@@ -270,25 +367,30 @@ void rrdset_set_name(RRDSET *st, const char *name)
char *rrdset_cache_dir(const char *id)
{
- char *ret = NULL;
-
- static char *cache_dir = NULL;
- if(!cache_dir) cache_dir = config_get("global", "cache directory", CACHE_DIR);
-
- char b[FILENAME_MAX + 1];
- char n[FILENAME_MAX + 1];
- rrdset_strncpy_name(b, id, FILENAME_MAX);
-
- snprintfz(n, FILENAME_MAX, "%s/%s", cache_dir, b);
- ret = config_get(id, "cache directory", n);
-
- if(rrd_memory_mode == RRD_MEMORY_MODE_MAP || rrd_memory_mode == RRD_MEMORY_MODE_SAVE) {
- int r = mkdir(ret, 0775);
- if(r != 0 && errno != EEXIST)
- error("Cannot create directory '%s'", ret);
- }
-
- return ret;
+ char *ret = NULL;
+
+ static char *cache_dir = NULL;
+ if(!cache_dir) {
+ cache_dir = config_get("global", "cache directory", CACHE_DIR);
+ int r = mkdir(cache_dir, 0755);
+ if(r != 0 && errno != EEXIST)
+ error("Cannot create directory '%s'", cache_dir);
+ }
+
+ char b[FILENAME_MAX + 1];
+ char n[FILENAME_MAX + 1];
+ rrdset_strncpyz_name(b, id, FILENAME_MAX);
+
+ snprintfz(n, FILENAME_MAX, "%s/%s", cache_dir, b);
+ ret = config_get(id, "cache directory", n);
+
+ if(rrd_memory_mode == RRD_MEMORY_MODE_MAP || rrd_memory_mode == RRD_MEMORY_MODE_SAVE) {
+ int r = mkdir(ret, 0775);
+ if(r != 0 && errno != EEXIST)
+ error("Cannot create directory '%s'", ret);
+ }
+
+ return ret;
}
// ----------------------------------------------------------------------------
@@ -296,1025 +398,1110 @@ char *rrdset_cache_dir(const char *id)
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;
- for(rd = st->dimensions; rd ; rd = rd->next) {
- rd->last_collected_time.tv_sec = 0;
- rd->last_collected_time.tv_usec = 0;
- rd->counter = 0;
- bzero(rd->values, rd->entries * sizeof(storage_number));
- }
+ 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;
+ for(rd = st->dimensions; rd ; rd = rd->next) {
+ rd->last_collected_time.tv_sec = 0;
+ rd->last_collected_time.tv_usec = 0;
+ rd->counter = 0;
+ bzero(rd->values, rd->entries * sizeof(storage_number));
+ }
}
RRDSET *rrdset_create(const char *type, const char *id, const char *name, const char *family, const char *context, const char *title, const char *units, long priority, int update_every, int chart_type)
{
- if(!type || !type[0]) {
- fatal("Cannot create rrd stats without a type.");
- return NULL;
- }
-
- if(!id || !id[0]) {
- fatal("Cannot create rrd stats without an id.");
- return NULL;
- }
-
- char fullid[RRD_ID_LENGTH_MAX + 1];
- char fullfilename[FILENAME_MAX + 1];
- RRDSET *st = NULL;
-
- snprintfz(fullid, RRD_ID_LENGTH_MAX, "%s.%s", type, id);
-
- st = rrdset_find(fullid);
- if(st) {
- error("Cannot create rrd stats for '%s', it already exists.", fullid);
- return st;
- }
-
- long entries = config_get_number(fullid, "history", rrd_default_history_entries);
- if(entries < 5) entries = config_set_number(fullid, "history", 5);
- if(entries > RRD_HISTORY_ENTRIES_MAX) entries = config_set_number(fullid, "history", RRD_HISTORY_ENTRIES_MAX);
-
- int enabled = config_get_boolean(fullid, "enabled", 1);
- if(!enabled) entries = 5;
-
- unsigned long size = sizeof(RRDSET);
- char *cache_dir = rrdset_cache_dir(fullid);
-
- debug(D_RRD_CALLS, "Creating RRD_STATS for '%s.%s'.", type, id);
-
- snprintfz(fullfilename, FILENAME_MAX, "%s/main.db", cache_dir);
- if(rrd_memory_mode != RRD_MEMORY_MODE_RAM) st = (RRDSET *)mymmap(fullfilename, size, ((rrd_memory_mode == RRD_MEMORY_MODE_MAP)?MAP_SHARED:MAP_PRIVATE), 0);
- if(st) {
- if(strcmp(st->magic, RRDSET_MAGIC) != 0) {
- errno = 0;
- info("Initializing file %s.", fullfilename);
- bzero(st, size);
- }
- else if(strcmp(st->id, fullid) != 0) {
- errno = 0;
- error("File %s contents are not for chart %s. Clearing it.", fullfilename, fullid);
- // munmap(st, size);
- // st = NULL;
- bzero(st, size);
- }
- else if(st->memsize != size || st->entries != entries) {
- errno = 0;
- error("File %s does not have the desired size. Clearing it.", fullfilename);
- bzero(st, size);
- }
- else if(st->update_every != update_every) {
- errno = 0;
- error("File %s does not have the desired update frequency. Clearing it.", fullfilename);
- bzero(st, size);
- }
- else if((time(NULL) - st->last_updated.tv_sec) > update_every * entries) {
- errno = 0;
- error("File %s is too old. Clearing it.", fullfilename);
- bzero(st, size);
- }
- }
-
- if(st) {
- st->name = NULL;
- st->type = NULL;
- st->family = NULL;
- st->context = NULL;
- st->title = NULL;
- st->units = NULL;
- st->dimensions = NULL;
- st->next = NULL;
- st->mapped = rrd_memory_mode;
- }
- else {
- st = calloc(1, size);
- if(!st) {
- fatal("Cannot allocate memory for RRD_STATS %s.%s", type, id);
- return NULL;
- }
- st->mapped = RRD_MEMORY_MODE_RAM;
- }
- st->memsize = size;
- st->entries = entries;
- st->update_every = update_every;
-
- 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->id, "chart type", rrdset_type_name(chart_type)));
- st->type = config_get(st->id, "type", type);
- st->family = config_get(st->id, "family", family?family:st->type);
- st->context = config_get(st->id, "context", context?context:st->id);
- st->units = config_get(st->id, "units", units?units:"");
-
- st->priority = config_get_number(st->id, "priority", priority);
- st->enabled = enabled;
-
- st->isdetail = 0;
- st->debug = 0;
-
- 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) (
- config_get_number(st->id, "gap when lost iterations above", RRD_DEFAULT_GAP_INTERPOLATIONS) + 2);
-
- avl_init_lock(&st->dimensions_index, rrddim_compare);
-
- pthread_rwlock_init(&st->rwlock, NULL);
- pthread_rwlock_wrlock(&rrdset_root_rwlock);
-
- if(name && *name) rrdset_set_name(st, name);
- else rrdset_set_name(st, id);
-
- {
- char varvalue[CONFIG_MAX_VALUE + 1];
- snprintfz(varvalue, CONFIG_MAX_VALUE, "%s (%s)", title?title:"", st->name);
- st->title = config_get(st->id, "title", varvalue);
- }
-
- st->next = rrdset_root;
- rrdset_root = st;
-
- rrdset_index_add(st);
-
- pthread_rwlock_unlock(&rrdset_root_rwlock);
-
- return(st);
+ if(!type || !type[0]) {
+ fatal("Cannot create rrd stats without a type.");
+ return NULL;
+ }
+
+ if(!id || !id[0]) {
+ fatal("Cannot create rrd stats without an id.");
+ return NULL;
+ }
+
+ char fullid[RRD_ID_LENGTH_MAX + 1];
+ char fullfilename[FILENAME_MAX + 1];
+ RRDSET *st = NULL;
+
+ snprintfz(fullid, RRD_ID_LENGTH_MAX, "%s.%s", type, id);
+
+ st = rrdset_find(fullid);
+ if(st) {
+ error("Cannot create rrd stats for '%s', it already exists.", fullid);
+ return st;
+ }
+
+ long entries = config_get_number(fullid, "history", rrd_default_history_entries);
+ if(entries < 5) entries = config_set_number(fullid, "history", 5);
+ if(entries > RRD_HISTORY_ENTRIES_MAX) entries = config_set_number(fullid, "history", RRD_HISTORY_ENTRIES_MAX);
+
+ int enabled = config_get_boolean(fullid, "enabled", 1);
+ if(!enabled) entries = 5;
+
+ unsigned long size = sizeof(RRDSET);
+ char *cache_dir = rrdset_cache_dir(fullid);
+
+ debug(D_RRD_CALLS, "Creating RRD_STATS for '%s.%s'.", type, id);
+
+ snprintfz(fullfilename, FILENAME_MAX, "%s/main.db", cache_dir);
+ if(rrd_memory_mode != RRD_MEMORY_MODE_RAM) st = (RRDSET *)mymmap(fullfilename, size, ((rrd_memory_mode == RRD_MEMORY_MODE_MAP)?MAP_SHARED:MAP_PRIVATE), 0);
+ if(st) {
+ if(strcmp(st->magic, RRDSET_MAGIC) != 0) {
+ errno = 0;
+ info("Initializing file %s.", fullfilename);
+ bzero(st, size);
+ }
+ else if(strcmp(st->id, fullid) != 0) {
+ errno = 0;
+ error("File %s contents are not for chart %s. Clearing it.", fullfilename, fullid);
+ // munmap(st, size);
+ // st = NULL;
+ bzero(st, size);
+ }
+ else if(st->memsize != size || st->entries != entries) {
+ errno = 0;
+ error("File %s does not have the desired size. Clearing it.", fullfilename);
+ bzero(st, size);
+ }
+ else if(st->update_every != update_every) {
+ errno = 0;
+ error("File %s does not have the desired update frequency. Clearing it.", fullfilename);
+ bzero(st, size);
+ }
+ else if((time(NULL) - st->last_updated.tv_sec) > update_every * entries) {
+ errno = 0;
+ error("File %s is too old. Clearing it.", fullfilename);
+ bzero(st, size);
+ }
+ }
+
+ if(st) {
+ st->name = NULL;
+ st->type = NULL;
+ st->family = NULL;
+ st->context = NULL;
+ st->title = NULL;
+ st->units = NULL;
+ st->dimensions = NULL;
+ st->next = NULL;
+ st->mapped = rrd_memory_mode;
+ st->variables = NULL;
+ }
+ else {
+ st = callocz(1, size);
+ st->mapped = RRD_MEMORY_MODE_RAM;
+ }
+
+ 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->id, "chart type", rrdset_type_name(chart_type)));
+ st->type = config_get(st->id, "type", type);
+ st->family = config_get(st->id, "family", family?family:st->type);
+ st->units = config_get(st->id, "units", units?units:"");
+
+ st->context = config_get(st->id, "context", context?context:st->id);
+ st->hash_context = simple_hash(st->context);
+
+ st->priority = config_get_number(st->id, "priority", priority);
+ st->enabled = enabled;
+
+ st->isdetail = 0;
+ st->debug = 0;
+
+ // 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) (
+ config_get_number(st->id, "gap when lost iterations above", RRD_DEFAULT_GAP_INTERPOLATIONS) + 2);
+
+ avl_init_lock(&st->dimensions_index, rrddim_compare);
+ avl_init_lock(&st->variables_root_index, rrdvar_compare);
+
+ pthread_rwlock_init(&st->rwlock, NULL);
+ rrdhost_rwlock(&localhost);
+
+ if(name && *name) rrdset_set_name(st, name);
+ else rrdset_set_name(st, id);
+
+ {
+ char varvalue[CONFIG_MAX_VALUE + 1];
+ snprintfz(varvalue, CONFIG_MAX_VALUE, "%s (%s)", title?title:"", st->name);
+ st->title = config_get(st->id, "title", varvalue);
+ }
+
+ st->rrdfamily = rrdfamily_create(st->family);
+ st->rrdhost = &localhost;
+
+ st->next = localhost.rrdset_root;
+ localhost.rrdset_root = st;
+
+ if(health_enabled) {
+ rrdsetvar_create(st, "last_collected_t", RRDVAR_TYPE_TIME_T, &st->last_collected_time.tv_sec, 0);
+ rrdsetvar_create(st, "collected_total_raw", RRDVAR_TYPE_TOTAL, &st->last_collected_total, 0);
+ rrdsetvar_create(st, "green", RRDVAR_TYPE_CALCULATED, &st->green, 0);
+ rrdsetvar_create(st, "red", RRDVAR_TYPE_CALCULATED, &st->red, 0);
+ rrdsetvar_create(st, "update_every", RRDVAR_TYPE_INT, &st->update_every, 0);
+ }
+
+ rrdset_index_add(&localhost, st);
+
+ rrdsetcalc_link_matching(st);
+ rrdcalctemplate_link_matching(st);
+
+ rrdhost_unlock(&localhost);
+
+ return(st);
}
RRDDIM *rrddim_add(RRDSET *st, const char *id, const char *name, long multiplier, long divisor, int algorithm)
{
- char filename[FILENAME_MAX + 1];
- char fullfilename[FILENAME_MAX + 1];
-
- char varname[CONFIG_MAX_NAME + 1];
- RRDDIM *rd = NULL;
- unsigned long size = sizeof(RRDDIM) + (st->entries * sizeof(storage_number));
-
- debug(D_RRD_CALLS, "Adding dimension '%s/%s'.", st->id, id);
-
- rrdset_strncpy_name(filename, id, FILENAME_MAX);
- snprintfz(fullfilename, FILENAME_MAX, "%s/%s.db", st->cache_dir, filename);
- if(rrd_memory_mode != RRD_MEMORY_MODE_RAM) rd = (RRDDIM *)mymmap(fullfilename, size, ((rrd_memory_mode == RRD_MEMORY_MODE_MAP)?MAP_SHARED:MAP_PRIVATE), 1);
- if(rd) {
- struct timeval now;
- gettimeofday(&now, NULL);
-
- if(strcmp(rd->magic, RRDDIMENSION_MAGIC) != 0) {
- errno = 0;
- info("Initializing file %s.", fullfilename);
- bzero(rd, size);
- }
- else if(rd->memsize != size) {
- errno = 0;
- error("File %s does not have the desired size. Clearing it.", fullfilename);
- bzero(rd, size);
- }
- else if(rd->multiplier != multiplier) {
- errno = 0;
- error("File %s does not have the same multiplier. Clearing it.", fullfilename);
- bzero(rd, size);
- }
- else if(rd->divisor != divisor) {
- errno = 0;
- error("File %s does not have the same divisor. Clearing it.", fullfilename);
- bzero(rd, size);
- }
- else if(rd->algorithm != algorithm) {
- errno = 0;
- error("File %s does not have the same algorithm. Clearing it.", fullfilename);
- bzero(rd, size);
- }
- else if(rd->update_every != st->update_every) {
- errno = 0;
- error("File %s does not have the same refresh frequency. Clearing it.", fullfilename);
- bzero(rd, size);
- }
- else if(usecdiff(&now, &rd->last_collected_time) > (rd->entries * rd->update_every * 1000000ULL)) {
- errno = 0;
- error("File %s is too old. Clearing it.", fullfilename);
- bzero(rd, size);
- }
- else if(strcmp(rd->id, id) != 0) {
- errno = 0;
- error("File %s contents are not for dimension %s. Clearing it.", fullfilename, id);
- // munmap(rd, size);
- // rd = NULL;
- bzero(rd, size);
- }
- }
-
- if(rd) {
- // we have a file mapped for rd
- rd->mapped = rrd_memory_mode;
- rd->flags = 0x00000000;
- rd->next = NULL;
- rd->name = NULL;
- }
- else {
- // if we didn't manage to get a mmap'd dimension, just create one
-
- rd = calloc(1, size);
- if(!rd) {
- fatal("Cannot allocate RRD_DIMENSION %s/%s.", st->id, id);
- return NULL;
- }
-
- rd->mapped = RRD_MEMORY_MODE_RAM;
- }
- rd->memsize = size;
-
- strcpy(rd->magic, RRDDIMENSION_MAGIC);
- strcpy(rd->cache_filename, fullfilename);
- strncpyz(rd->id, id, RRD_ID_LENGTH_MAX);
- rd->hash = simple_hash(rd->id);
-
- snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
- rd->name = config_get(st->id, varname, (name && *name)?name:rd->id);
-
- snprintfz(varname, CONFIG_MAX_NAME, "dim %s algorithm", rd->id);
- rd->algorithm = rrddim_algorithm_id(config_get(st->id, varname, rrddim_algorithm_name(algorithm)));
-
- snprintfz(varname, CONFIG_MAX_NAME, "dim %s multiplier", rd->id);
- rd->multiplier = config_get_number(st->id, varname, multiplier);
-
- snprintfz(varname, CONFIG_MAX_NAME, "dim %s divisor", rd->id);
- rd->divisor = config_get_number(st->id, varname, divisor);
- if(!rd->divisor) rd->divisor = 1;
-
- rd->entries = st->entries;
- rd->update_every = st->update_every;
-
- // prevent incremental calculation spikes
- rd->counter = 0;
-
- // append this dimension
- pthread_rwlock_wrlock(&st->rwlock);
- if(!st->dimensions)
- st->dimensions = rd;
- else {
- RRDDIM *td = st->dimensions;
- for(; td->next; td = td->next) ;
- td->next = rd;
- }
- pthread_rwlock_unlock(&st->rwlock);
-
- rrddim_index_add(st, rd);
-
- return(rd);
+ char filename[FILENAME_MAX + 1];
+ char fullfilename[FILENAME_MAX + 1];
+
+ char varname[CONFIG_MAX_NAME + 1];
+ RRDDIM *rd = NULL;
+ unsigned long size = sizeof(RRDDIM) + (st->entries * sizeof(storage_number));
+
+ debug(D_RRD_CALLS, "Adding dimension '%s/%s'.", st->id, id);
+
+ rrdset_strncpyz_name(filename, id, FILENAME_MAX);
+ snprintfz(fullfilename, FILENAME_MAX, "%s/%s.db", st->cache_dir, filename);
+ if(rrd_memory_mode != RRD_MEMORY_MODE_RAM) rd = (RRDDIM *)mymmap(fullfilename, size, ((rrd_memory_mode == RRD_MEMORY_MODE_MAP)?MAP_SHARED:MAP_PRIVATE), 1);
+ if(rd) {
+ struct timeval now;
+ gettimeofday(&now, NULL);
+
+ if(strcmp(rd->magic, RRDDIMENSION_MAGIC) != 0) {
+ errno = 0;
+ info("Initializing file %s.", fullfilename);
+ bzero(rd, size);
+ }
+ else if(rd->memsize != size) {
+ errno = 0;
+ error("File %s does not have the desired size. Clearing it.", fullfilename);
+ bzero(rd, size);
+ }
+ else if(rd->multiplier != multiplier) {
+ errno = 0;
+ error("File %s does not have the same multiplier. Clearing it.", fullfilename);
+ bzero(rd, size);
+ }
+ else if(rd->divisor != divisor) {
+ errno = 0;
+ error("File %s does not have the same divisor. Clearing it.", fullfilename);
+ bzero(rd, size);
+ }
+ else if(rd->algorithm != algorithm) {
+ errno = 0;
+ error("File %s does not have the same algorithm. Clearing it.", fullfilename);
+ bzero(rd, size);
+ }
+ else if(rd->update_every != st->update_every) {
+ errno = 0;
+ error("File %s does not have the same refresh frequency. Clearing it.", fullfilename);
+ bzero(rd, size);
+ }
+ else if(usec_dt(&now, &rd->last_collected_time) > (rd->entries * rd->update_every * 1000000ULL)) {
+ errno = 0;
+ error("File %s is too old. Clearing it.", fullfilename);
+ bzero(rd, size);
+ }
+ else if(strcmp(rd->id, id) != 0) {
+ errno = 0;
+ error("File %s contents are not for dimension %s. Clearing it.", fullfilename, id);
+ // munmap(rd, size);
+ // rd = NULL;
+ bzero(rd, size);
+ }
+ }
+
+ if(rd) {
+ // we have a file mapped for rd
+ rd->mapped = rrd_memory_mode;
+ rd->flags = 0x00000000;
+ rd->variables = NULL;
+ rd->next = NULL;
+ rd->name = NULL;
+ }
+ else {
+ // if we didn't manage to get a mmap'd dimension, just create one
+
+ rd = callocz(1, size);
+ rd->mapped = RRD_MEMORY_MODE_RAM;
+ }
+ rd->memsize = size;
+
+ strcpy(rd->magic, RRDDIMENSION_MAGIC);
+ strcpy(rd->cache_filename, fullfilename);
+ strncpyz(rd->id, id, RRD_ID_LENGTH_MAX);
+ rd->hash = simple_hash(rd->id);
+
+ snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
+ rd->name = config_get(st->id, varname, (name && *name)?name:rd->id);
+
+ snprintfz(varname, CONFIG_MAX_NAME, "dim %s algorithm", rd->id);
+ rd->algorithm = rrddim_algorithm_id(config_get(st->id, varname, rrddim_algorithm_name(algorithm)));
+
+ snprintfz(varname, CONFIG_MAX_NAME, "dim %s multiplier", rd->id);
+ rd->multiplier = config_get_number(st->id, varname, multiplier);
+
+ snprintfz(varname, CONFIG_MAX_NAME, "dim %s divisor", rd->id);
+ rd->divisor = config_get_number(st->id, varname, divisor);
+ if(!rd->divisor) rd->divisor = 1;
+
+ rd->entries = st->entries;
+ rd->update_every = st->update_every;
+
+ // prevent incremental calculation spikes
+ rd->counter = 0;
+ rd->updated = 0;
+ rd->calculated_value = 0;
+ rd->last_calculated_value = 0;
+ rd->collected_value = 0;
+ rd->last_collected_value = 0;
+ rd->collected_volume = 0;
+ rd->stored_volume = 0;
+ rd->last_stored_value = 0;
+ rd->values[st->current_entry] = pack_storage_number(0, SN_NOT_EXISTS);
+ rd->last_collected_time.tv_sec = 0;
+ rd->last_collected_time.tv_usec = 0;
+ rd->rrdset = st;
+
+ // append this dimension
+ pthread_rwlock_wrlock(&st->rwlock);
+ if(!st->dimensions)
+ st->dimensions = rd;
+ else {
+ RRDDIM *td = st->dimensions;
+ for(; td->next; td = td->next) ;
+ td->next = rd;
+ }
+
+ if(health_enabled) {
+ rrddimvar_create(rd, RRDVAR_TYPE_CALCULATED, NULL, NULL, &rd->last_stored_value, 0);
+ rrddimvar_create(rd, RRDVAR_TYPE_COLLECTED, NULL, "_raw", &rd->last_collected_value, 0);
+ rrddimvar_create(rd, RRDVAR_TYPE_TIME_T, NULL, "_last_collected_t", &rd->last_collected_time.tv_sec, 0);
+ }
+
+ pthread_rwlock_unlock(&st->rwlock);
+
+ rrddim_index_add(st, rd);
+
+ return(rd);
}
void rrddim_set_name(RRDSET *st, RRDDIM *rd, const char *name)
{
- debug(D_RRD_CALLS, "rrddim_set_name() %s.%s", st->name, rd->name);
+ debug(D_RRD_CALLS, "rrddim_set_name() %s.%s", st->name, rd->name);
+
+ char varname[CONFIG_MAX_NAME + 1];
+ snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
+ config_set_default(st->id, varname, name);
- char varname[CONFIG_MAX_NAME + 1];
- snprintfz(varname, CONFIG_MAX_NAME, "dim %s name", rd->id);
- config_set_default(st->id, varname, name);
+ rrddimvar_rename_all(rd);
}
void rrddim_free(RRDSET *st, RRDDIM *rd)
{
- debug(D_RRD_CALLS, "rrddim_free() %s.%s", st->name, rd->name);
-
- RRDDIM *i, *last = NULL;
- for(i = st->dimensions; i && i != rd ; i = i->next) last = i;
-
- if(!i) {
- error("Request to free dimension %s.%s but it is not linked.", st->id, rd->name);
- return;
- }
-
- if(last) last->next = rd->next;
- else st->dimensions = rd->next;
- rd->next = NULL;
-
- rrddim_index_del(st, rd);
-
- // free(rd->annotations);
- if(rd->mapped == RRD_MEMORY_MODE_SAVE) {
- debug(D_RRD_CALLS, "Saving dimension '%s' to '%s'.", rd->name, rd->cache_filename);
- savememory(rd->cache_filename, rd, rd->memsize);
-
- debug(D_RRD_CALLS, "Unmapping dimension '%s'.", rd->name);
- munmap(rd, rd->memsize);
- }
- else if(rd->mapped == RRD_MEMORY_MODE_MAP) {
- debug(D_RRD_CALLS, "Unmapping dimension '%s'.", rd->name);
- munmap(rd, rd->memsize);
- }
- else {
- debug(D_RRD_CALLS, "Removing dimension '%s'.", rd->name);
- free(rd);
- }
+ debug(D_RRD_CALLS, "rrddim_free() %s.%s", st->name, rd->name);
+
+ if(rd == st->dimensions)
+ st->dimensions = rd->next;
+ else {
+ RRDDIM *i;
+ for (i = st->dimensions; i && i->next != rd; i = i->next) ;
+
+ if (i && i->next == rd)
+ i->next = rd->next;
+ else
+ error("Request to free dimension '%s.%s' but it is not linked.", st->id, rd->name);
+ }
+ rd->next = NULL;
+
+ while(rd->variables)
+ rrddimvar_free(rd->variables);
+
+ rrddim_index_del(st, rd);
+
+ // free(rd->annotations);
+ if(rd->mapped == RRD_MEMORY_MODE_SAVE) {
+ debug(D_RRD_CALLS, "Saving dimension '%s' to '%s'.", rd->name, rd->cache_filename);
+ savememory(rd->cache_filename, rd, rd->memsize);
+
+ debug(D_RRD_CALLS, "Unmapping dimension '%s'.", rd->name);
+ munmap(rd, rd->memsize);
+ }
+ else if(rd->mapped == RRD_MEMORY_MODE_MAP) {
+ debug(D_RRD_CALLS, "Unmapping dimension '%s'.", rd->name);
+ munmap(rd, rd->memsize);
+ }
+ else {
+ debug(D_RRD_CALLS, "Removing dimension '%s'.", rd->name);
+ freez(rd);
+ }
}
void rrdset_free_all(void)
{
- info("Freeing all memory...");
+ info("Freeing all memory...");
- RRDSET *st;
- for(st = rrdset_root; st ;) {
- RRDSET *next = st->next;
+ rrdhost_rwlock(&localhost);
- while(st->dimensions)
- rrddim_free(st, st->dimensions);
+ RRDSET *st;
+ for(st = localhost.rrdset_root; st ;) {
+ RRDSET *next = st->next;
- rrdset_index_del(st);
+ pthread_rwlock_wrlock(&st->rwlock);
- if(st->mapped == RRD_MEMORY_MODE_SAVE) {
- debug(D_RRD_CALLS, "Saving stats '%s' to '%s'.", st->name, st->cache_filename);
- savememory(st->cache_filename, st, st->memsize);
+ while(st->variables)
+ rrdsetvar_free(st->variables);
- debug(D_RRD_CALLS, "Unmapping stats '%s'.", st->name);
- munmap(st, st->memsize);
- }
- else if(st->mapped == RRD_MEMORY_MODE_MAP) {
- debug(D_RRD_CALLS, "Unmapping stats '%s'.", st->name);
- munmap(st, st->memsize);
- }
- else
- free(st);
+ while(st->alarms)
+ rrdsetcalc_unlink(st->alarms);
- st = next;
- }
- rrdset_root = NULL;
+ while(st->dimensions)
+ rrddim_free(st, st->dimensions);
- info("Memory cleanup completed...");
-}
+ rrdset_index_del(&localhost, st);
-void rrdset_save_all(void)
-{
- debug(D_RRD_CALLS, "rrdset_save_all()");
+ st->rrdfamily->use_count--;
+ if(!st->rrdfamily->use_count)
+ rrdfamily_free(st->rrdfamily);
+
+ pthread_rwlock_unlock(&st->rwlock);
+
+ if(st->mapped == RRD_MEMORY_MODE_SAVE) {
+ debug(D_RRD_CALLS, "Saving stats '%s' to '%s'.", st->name, st->cache_filename);
+ savememory(st->cache_filename, st, st->memsize);
+
+ debug(D_RRD_CALLS, "Unmapping stats '%s'.", st->name);
+ munmap(st, st->memsize);
+ }
+ else if(st->mapped == RRD_MEMORY_MODE_MAP) {
+ debug(D_RRD_CALLS, "Unmapping stats '%s'.", st->name);
+ munmap(st, st->memsize);
+ }
+ else
+ freez(st);
+
+ st = next;
+ }
+ localhost.rrdset_root = NULL;
+
+ rrdhost_unlock(&localhost);
+
+ info("Memory cleanup completed...");
+}
- // let it log a few error messages
- error_log_limit_reset();
+void rrdset_save_all(void) {
+ info("Saving database...");
- RRDSET *st;
- RRDDIM *rd;
+ RRDSET *st;
+ RRDDIM *rd;
- pthread_rwlock_wrlock(&rrdset_root_rwlock);
- for(st = rrdset_root; st ; st = st->next) {
- pthread_rwlock_wrlock(&st->rwlock);
+ rrdhost_rwlock(&localhost);
+ for(st = localhost.rrdset_root; st ; st = st->next) {
+ pthread_rwlock_wrlock(&st->rwlock);
- if(st->mapped == RRD_MEMORY_MODE_SAVE) {
- debug(D_RRD_CALLS, "Saving stats '%s' to '%s'.", st->name, st->cache_filename);
- savememory(st->cache_filename, st, st->memsize);
- }
+ if(st->mapped == RRD_MEMORY_MODE_SAVE) {
+ debug(D_RRD_CALLS, "Saving stats '%s' to '%s'.", st->name, st->cache_filename);
+ savememory(st->cache_filename, st, st->memsize);
+ }
- for(rd = st->dimensions; rd ; rd = rd->next) {
- if(likely(rd->mapped == RRD_MEMORY_MODE_SAVE)) {
- debug(D_RRD_CALLS, "Saving dimension '%s' to '%s'.", rd->name, rd->cache_filename);
- savememory(rd->cache_filename, rd, rd->memsize);
- }
- }
+ for(rd = st->dimensions; rd ; rd = rd->next) {
+ if(likely(rd->mapped == RRD_MEMORY_MODE_SAVE)) {
+ debug(D_RRD_CALLS, "Saving dimension '%s' to '%s'.", rd->name, rd->cache_filename);
+ savememory(rd->cache_filename, rd, rd->memsize);
+ }
+ }
- pthread_rwlock_unlock(&st->rwlock);
- }
- pthread_rwlock_unlock(&rrdset_root_rwlock);
+ pthread_rwlock_unlock(&st->rwlock);
+ }
+ rrdhost_unlock(&localhost);
}
RRDSET *rrdset_find(const char *id)
{
- debug(D_RRD_CALLS, "rrdset_find() for chart %s", id);
+ debug(D_RRD_CALLS, "rrdset_find() for chart %s", id);
- RRDSET *st = rrdset_index_find(id, 0);
- return(st);
+ RRDSET *st = rrdset_index_find(&localhost, id, 0);
+ return(st);
}
RRDSET *rrdset_find_bytype(const char *type, const char *id)
{
- debug(D_RRD_CALLS, "rrdset_find_bytype() for chart %s.%s", type, id);
+ debug(D_RRD_CALLS, "rrdset_find_bytype() for chart %s.%s", type, id);
- char buf[RRD_ID_LENGTH_MAX + 1];
+ 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));
+ 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(buf));
+ return(rrdset_find(buf));
}
RRDSET *rrdset_find_byname(const char *name)
{
- debug(D_RRD_CALLS, "rrdset_find_byname() for chart %s", name);
+ debug(D_RRD_CALLS, "rrdset_find_byname() for chart %s", name);
- RRDSET *st = rrdset_index_find_name(name, 0);
- return(st);
+ RRDSET *st = rrdset_index_find_name(&localhost, name, 0);
+ return(st);
}
RRDDIM *rrddim_find(RRDSET *st, const char *id)
{
- debug(D_RRD_CALLS, "rrddim_find() for chart %s, dimension %s", st->name, id);
+ debug(D_RRD_CALLS, "rrddim_find() for chart %s, dimension %s", st->name, id);
- return rrddim_index_find(st, id, 0);
+ return rrddim_index_find(st, id, 0);
}
int rrddim_hide(RRDSET *st, const char *id)
{
- debug(D_RRD_CALLS, "rrddim_hide() for chart %s, dimension %s", st->name, id);
+ debug(D_RRD_CALLS, "rrddim_hide() for chart %s, dimension %s", st->name, id);
- RRDDIM *rd = rrddim_find(st, id);
- if(unlikely(!rd)) {
- error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
- return 1;
- }
+ RRDDIM *rd = rrddim_find(st, id);
+ if(unlikely(!rd)) {
+ error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
+ return 1;
+ }
- rd->flags |= RRDDIM_FLAG_HIDDEN;
- return 0;
+ rd->flags |= RRDDIM_FLAG_HIDDEN;
+ return 0;
}
int rrddim_unhide(RRDSET *st, const char *id)
{
- debug(D_RRD_CALLS, "rrddim_unhide() for chart %s, dimension %s", st->name, id);
+ debug(D_RRD_CALLS, "rrddim_unhide() for chart %s, dimension %s", st->name, id);
- RRDDIM *rd = rrddim_find(st, id);
- if(unlikely(!rd)) {
- error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
- return 1;
- }
+ RRDDIM *rd = rrddim_find(st, id);
+ if(unlikely(!rd)) {
+ error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
+ return 1;
+ }
- if(rd->flags & RRDDIM_FLAG_HIDDEN) rd->flags ^= RRDDIM_FLAG_HIDDEN;
- return 0;
+ if(rd->flags & RRDDIM_FLAG_HIDDEN) rd->flags ^= RRDDIM_FLAG_HIDDEN;
+ return 0;
}
collected_number rrddim_set_by_pointer(RRDSET *st, RRDDIM *rd, collected_number value)
{
- debug(D_RRD_CALLS, "rrddim_set_by_pointer() for chart %s, dimension %s, value " COLLECTED_NUMBER_FORMAT, st->name, rd->name, value);
+ debug(D_RRD_CALLS, "rrddim_set_by_pointer() for chart %s, dimension %s, value " COLLECTED_NUMBER_FORMAT, st->name, rd->name, value);
- gettimeofday(&rd->last_collected_time, NULL);
- rd->collected_value = value;
- rd->updated = 1;
- rd->counter++;
+ gettimeofday(&rd->last_collected_time, NULL);
+ rd->collected_value = value;
+ rd->updated = 1;
+ rd->counter++;
- return rd->last_collected_value;
+ return rd->last_collected_value;
}
collected_number rrddim_set(RRDSET *st, const char *id, collected_number value)
{
- RRDDIM *rd = rrddim_find(st, id);
- if(unlikely(!rd)) {
- error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
- return 0;
- }
+ RRDDIM *rd = rrddim_find(st, id);
+ if(unlikely(!rd)) {
+ error("Cannot find dimension with id '%s' on stats '%s' (%s).", id, st->name, st->id);
+ return 0;
+ }
- return rrddim_set_by_pointer(st, rd, value);
+ return rrddim_set_by_pointer(st, rd, value);
}
void rrdset_next_usec(RRDSET *st, unsigned long long microseconds)
{
- if(!microseconds) rrdset_next(st);
- else {
- debug(D_RRD_CALLS, "rrdset_next_usec() for chart %s with microseconds %llu", st->name, microseconds);
+ if(!microseconds) rrdset_next(st);
+ else {
+ debug(D_RRD_CALLS, "rrdset_next_usec() for chart %s with microseconds %llu", st->name, microseconds);
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: NEXT: %llu microseconds", st->name, microseconds);
- st->usec_since_last_update = microseconds;
- }
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: NEXT: %llu microseconds", st->name, microseconds);
+ st->usec_since_last_update = microseconds;
+ }
}
void rrdset_next(RRDSET *st)
{
- unsigned long long microseconds = 0;
+ unsigned long long microseconds = 0;
- if(likely(st->last_collected_time.tv_sec)) {
- struct timeval now;
- gettimeofday(&now, NULL);
- microseconds = usecdiff(&now, &st->last_collected_time);
- }
- // prevent infinite loop
- else microseconds = st->update_every * 1000000ULL;
+ if(likely(st->last_collected_time.tv_sec)) {
+ struct timeval now;
+ gettimeofday(&now, NULL);
+ microseconds = usec_dt(&now, &st->last_collected_time);
+ }
+ // prevent infinite loop
+ else microseconds = st->update_every * 1000000ULL;
- rrdset_next_usec(st, microseconds);
+ rrdset_next_usec(st, microseconds);
}
void rrdset_next_plugins(RRDSET *st)
{
- rrdset_next(st);
+ rrdset_next(st);
}
unsigned long long rrdset_done(RRDSET *st)
{
- debug(D_RRD_CALLS, "rrdset_done() for chart %s", st->name);
-
- RRDDIM *rd, *last;
- int oldstate, store_this_entry = 1, first_entry = 0;
- unsigned long long last_ut, now_ut, next_ut, stored_entries = 0;
-
- if(unlikely(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldstate) != 0))
- error("Cannot set pthread cancel state to DISABLE.");
-
- // a read lock is OK here
- pthread_rwlock_rdlock(&st->rwlock);
-
- // enable the chart, if it was disabled
- if(unlikely(rrd_delete_unupdated_dimensions) && !st->enabled)
- st->enabled = 1;
-
- // check if the chart has a long time to be updated
- if(unlikely(st->usec_since_last_update > st->entries * st->update_every * 1000000ULL)) {
- info("%s: took too long to be updated (%0.3Lf secs). Reseting it.", st->name, (long double)(st->usec_since_last_update / 1000000.0));
- rrdset_reset(st);
- st->usec_since_last_update = st->update_every * 1000000ULL;
- first_entry = 1;
- }
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: microseconds since last update: %llu", st->name, st->usec_since_last_update);
-
- // set last_collected_time
- if(unlikely(!st->last_collected_time.tv_sec)) {
- // it is the first entry
- // set the last_collected_time to now
- gettimeofday(&st->last_collected_time, NULL);
-
- // the first entry should not be stored
- store_this_entry = 0;
- first_entry = 1;
-
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: has not set last_collected_time. Setting it now. Will not store the next entry.", st->name);
- }
- else {
- // it is not the first entry
- // calculate the proper last_collected_time, using usec_since_last_update
- unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec + st->usec_since_last_update;
- st->last_collected_time.tv_sec = (time_t) (ut / 1000000ULL);
- st->last_collected_time.tv_usec = (useconds_t) (ut % 1000000ULL);
- }
-
- // 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
- unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec - st->usec_since_last_update;
- st->last_updated.tv_sec = (time_t) (ut / 1000000ULL);
- st->last_updated.tv_usec = (useconds_t) (ut % 1000000ULL);
-
- // the first entry should not be stored
- store_this_entry = 0;
- first_entry = 1;
-
- if(unlikely(st->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);
- }
-
- // check if we will re-write the entire data set
- if(unlikely(usecdiff(&st->last_collected_time, &st->last_updated) > st->update_every * st->entries * 1000000ULL)) {
- info("%s: too old data (last updated at %u.%u, last collected at %u.%u). Reseting 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);
-
- st->usec_since_last_update = st->update_every * 1000000ULL;
-
- gettimeofday(&st->last_collected_time, NULL);
-
- unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec - st->usec_since_last_update;
- st->last_updated.tv_sec = (time_t) (ut / 1000000ULL);
- st->last_updated.tv_usec = (useconds_t) (ut % 1000000ULL);
-
- // 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_ut = the last time we added a value to the storage
- // now_ut = the time the current value is taken at
- // next_ut = the time of the next interpolation point
- last_ut = st->last_updated.tv_sec * 1000000ULL + st->last_updated.tv_usec;
- now_ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec;
- next_ut = (st->last_updated.tv_sec + st->update_every) * 1000000ULL;
-
- if(unlikely(!first_entry && now_ut < next_ut)) {
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: THIS IS IN THE SAME INTERPOLATION POINT", st->name);
- }
-
- if(unlikely(st->debug)) {
- debug(D_RRD_STATS, "%s: last ut = %0.3Lf (last updated time)", st->name, (long double)last_ut/1000000.0);
- debug(D_RRD_STATS, "%s: now ut = %0.3Lf (current update time)", st->name, (long double)now_ut/1000000.0);
- debug(D_RRD_STATS, "%s: next ut = %0.3Lf (next interpolation point)", st->name, (long double)next_ut/1000000.0);
- }
-
- if(unlikely(!st->counter_done)) {
- store_this_entry = 0;
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: Will not store the next entry.", st->name);
- }
- st->counter_done++;
-
- // calculate totals and count the dimensions
- int dimensions;
- st->collected_total = 0;
- for( rd = st->dimensions, dimensions = 0 ; likely(rd) ; rd = rd->next, dimensions++ )
- 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
- for( rd = st->dimensions ; likely(rd) ; rd = rd->next ) {
-
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: START "
- " last_collected_value = " COLLECTED_NUMBER_FORMAT
- " collected_value = " COLLECTED_NUMBER_FORMAT
- " last_calculated_value = " CALCULATED_NUMBER_FORMAT
- " calculated_value = " CALCULATED_NUMBER_FORMAT
- , st->id, rd->name
- , rd->last_collected_value
- , rd->collected_value
- , rd->last_calculated_value
- , rd->calculated_value
- );
-
- switch(rd->algorithm) {
- case RRDDIM_ABSOLUTE:
- rd->calculated_value = (calculated_number)rd->collected_value
- * (calculated_number)rd->multiplier
- / (calculated_number)rd->divisor;
-
- if(unlikely(st->debug))
- debug(D_RRD_STATS, "%s/%s: CALC ABS/ABS-NO-IN "
- CALCULATED_NUMBER_FORMAT " = "
- COLLECTED_NUMBER_FORMAT
- " * " CALCULATED_NUMBER_FORMAT
- " / " CALCULATED_NUMBER_FORMAT
- , st->id, rd->name
- , rd->calculated_value
- , rd->collected_value
- , (calculated_number)rd->multiplier
- , (calculated_number)rd->divisor
- );
- break;
-
- case RRDDIM_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;
-
- if(unlikely(st->debug))
- debug(D_RRD_STATS, "%s/%s: CALC PCENT-ROW "
- CALCULATED_NUMBER_FORMAT " = 100"
- " * " COLLECTED_NUMBER_FORMAT
- " / " COLLECTED_NUMBER_FORMAT
- , st->id, rd->name
- , rd->calculated_value
- , rd->collected_value
- , st->collected_total
- );
- break;
-
- case RRDDIM_INCREMENTAL:
- if(unlikely(!rd->updated || rd->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(!(rd->flags & 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;
-
- if(unlikely(st->debug))
- debug(D_RRD_STATS, "%s/%s: CALC INC PRE "
- CALCULATED_NUMBER_FORMAT " = ("
- COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT
- ")"
- " * " CALCULATED_NUMBER_FORMAT
- " / " CALCULATED_NUMBER_FORMAT
- , st->id, rd->name
- , rd->calculated_value
- , rd->collected_value, rd->last_collected_value
- , (calculated_number)rd->multiplier
- , (calculated_number)rd->divisor
- );
- break;
-
- case RRDDIM_PCENT_OVER_DIFF_TOTAL:
- if(unlikely(!rd->updated || rd->counter <= 1)) {
- rd->calculated_value = 0;
- continue;
- }
-
- // 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 = rd->last_calculated_value;
- 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);
-
- if(unlikely(st->debug))
- debug(D_RRD_STATS, "%s/%s: CALC PCENT-DIFF "
- CALCULATED_NUMBER_FORMAT " = 100"
- " * (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")"
- " / (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")"
- , st->id, rd->name
- , rd->calculated_value
- , rd->collected_value, rd->last_collected_value
- , st->collected_total, st->last_collected_total
- );
- break;
-
- default:
- // make the default zero, to make sure
- // it gets noticed when we add new types
- rd->calculated_value = 0;
-
- if(unlikely(st->debug))
- debug(D_RRD_STATS, "%s/%s: CALC "
- CALCULATED_NUMBER_FORMAT " = 0"
- , st->id, rd->name
- , rd->calculated_value
- );
- break;
- }
-
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: PHASE2 "
- " last_collected_value = " COLLECTED_NUMBER_FORMAT
- " collected_value = " COLLECTED_NUMBER_FORMAT
- " last_calculated_value = " CALCULATED_NUMBER_FORMAT
- " calculated_value = " CALCULATED_NUMBER_FORMAT
- , st->id, rd->name
- , rd->last_collected_value
- , rd->collected_value
- , rd->last_calculated_value
- , rd->calculated_value
- );
-
- }
-
- // at this point we have all the calculated values ready
- // it is now time to interpolate values on a second boundary
-
- unsigned long long first_ut = last_ut;
- long long iterations = (now_ut - last_ut) / (st->update_every * 1000000ULL);
- if((now_ut % (st->update_every * 1000000ULL)) == 0) iterations++;
-
- for( ; likely(next_ut <= now_ut) ; next_ut += st->update_every * 1000000ULL, iterations-- ) {
+ if(unlikely(netdata_exit)) return 0;
+
+ debug(D_RRD_CALLS, "rrdset_done() for chart %s", st->name);
+
+ RRDDIM *rd, *last;
+ int oldstate, store_this_entry = 1, first_entry = 0;
+ unsigned long long last_ut, now_ut, next_ut, stored_entries = 0;
+
+ if(unlikely(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &oldstate) != 0))
+ error("Cannot set pthread cancel state to DISABLE.");
+
+ // a read lock is OK here
+ pthread_rwlock_rdlock(&st->rwlock);
+
+ // enable the chart, if it was disabled
+ if(unlikely(rrd_delete_unupdated_dimensions) && !st->enabled)
+ st->enabled = 1;
+
+ // check if the chart has a long time to be updated
+ if(unlikely(st->usec_since_last_update > st->entries * st->update_every * 1000000ULL)) {
+ info("%s: took too long to be updated (%0.3Lf secs). Reseting it.", st->name, (long double)(st->usec_since_last_update / 1000000.0));
+ rrdset_reset(st);
+ st->usec_since_last_update = st->update_every * 1000000ULL;
+ first_entry = 1;
+ }
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: microseconds since last update: %llu", st->name, st->usec_since_last_update);
+
+ // set last_collected_time
+ if(unlikely(!st->last_collected_time.tv_sec)) {
+ // it is the first entry
+ // set the last_collected_time to now
+ gettimeofday(&st->last_collected_time, NULL);
+
+ // the first entry should not be stored
+ store_this_entry = 0;
+ first_entry = 1;
+
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: has not set last_collected_time. Setting it now. Will not store the next entry.", st->name);
+ }
+ else {
+ // it is not the first entry
+ // calculate the proper last_collected_time, using usec_since_last_update
+ unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec + st->usec_since_last_update;
+ st->last_collected_time.tv_sec = (time_t) (ut / 1000000ULL);
+ st->last_collected_time.tv_usec = (suseconds_t) (ut % 1000000ULL);
+ }
+
+ // 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
+ unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec - st->usec_since_last_update;
+ st->last_updated.tv_sec = (time_t) (ut / 1000000ULL);
+ st->last_updated.tv_usec = (suseconds_t) (ut % 1000000ULL);
+
+ // the first entry should not be stored
+ store_this_entry = 0;
+ first_entry = 1;
+
+ if(unlikely(st->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);
+ }
+
+ // check if we will re-write the entire data set
+ if(unlikely(usec_dt(&st->last_collected_time, &st->last_updated) > st->update_every * st->entries * 1000000ULL)) {
+ info("%s: too old data (last updated at %ld.%ld, last collected at %ld.%ld). Reseting 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);
+
+ st->usec_since_last_update = st->update_every * 1000000ULL;
+
+ gettimeofday(&st->last_collected_time, NULL);
+
+ unsigned long long ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec - st->usec_since_last_update;
+ st->last_updated.tv_sec = (time_t) (ut / 1000000ULL);
+ st->last_updated.tv_usec = (suseconds_t) (ut % 1000000ULL);
+
+ // 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_ut = the last time we added a value to the storage
+ // now_ut = the time the current value is taken at
+ // next_ut = the time of the next interpolation point
+ last_ut = st->last_updated.tv_sec * 1000000ULL + st->last_updated.tv_usec;
+ now_ut = st->last_collected_time.tv_sec * 1000000ULL + st->last_collected_time.tv_usec;
+ next_ut = (st->last_updated.tv_sec + st->update_every) * 1000000ULL;
+
+ if(unlikely(!first_entry && now_ut < next_ut)) {
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: THIS IS IN THE SAME INTERPOLATION POINT", st->name);
+ }
+
+ if(unlikely(st->debug)) {
+ debug(D_RRD_STATS, "%s: last ut = %0.3Lf (last updated time)", st->name, (long double)last_ut/1000000.0);
+ debug(D_RRD_STATS, "%s: now ut = %0.3Lf (current update time)", st->name, (long double)now_ut/1000000.0);
+ debug(D_RRD_STATS, "%s: next ut = %0.3Lf (next interpolation point)", st->name, (long double)next_ut/1000000.0);
+ }
+
+ if(unlikely(!st->counter_done)) {
+ store_this_entry = 0;
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s: Will not store the next entry.", st->name);
+ }
+ st->counter_done++;
+
+ // calculate totals and count the dimensions
+ int dimensions;
+ st->collected_total = 0;
+ for( rd = st->dimensions, dimensions = 0 ; likely(rd) ; rd = rd->next, 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
+ for( rd = st->dimensions ; likely(rd) ; rd = rd->next ) {
+
+ if(unlikely(!rd->updated)) {
+ rd->calculated_value = 0;
+ continue;
+ }
+
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: START "
+ " last_collected_value = " COLLECTED_NUMBER_FORMAT
+ " collected_value = " COLLECTED_NUMBER_FORMAT
+ " last_calculated_value = " CALCULATED_NUMBER_FORMAT
+ " calculated_value = " CALCULATED_NUMBER_FORMAT
+ , st->id, rd->name
+ , rd->last_collected_value
+ , rd->collected_value
+ , rd->last_calculated_value
+ , rd->calculated_value
+ );
+
+ switch(rd->algorithm) {
+ case RRDDIM_ABSOLUTE:
+ rd->calculated_value = (calculated_number)rd->collected_value
+ * (calculated_number)rd->multiplier
+ / (calculated_number)rd->divisor;
+
+ if(unlikely(st->debug))
+ debug(D_RRD_STATS, "%s/%s: CALC ABS/ABS-NO-IN "
+ CALCULATED_NUMBER_FORMAT " = "
+ COLLECTED_NUMBER_FORMAT
+ " * " CALCULATED_NUMBER_FORMAT
+ " / " CALCULATED_NUMBER_FORMAT
+ , st->id, rd->name
+ , rd->calculated_value
+ , rd->collected_value
+ , (calculated_number)rd->multiplier
+ , (calculated_number)rd->divisor
+ );
+ break;
+
+ case RRDDIM_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;
+
+ if(unlikely(st->debug))
+ debug(D_RRD_STATS, "%s/%s: CALC PCENT-ROW "
+ CALCULATED_NUMBER_FORMAT " = 100"
+ " * " COLLECTED_NUMBER_FORMAT
+ " / " COLLECTED_NUMBER_FORMAT
+ , st->id, rd->name
+ , rd->calculated_value
+ , rd->collected_value
+ , st->collected_total
+ );
+ break;
+
+ case RRDDIM_INCREMENTAL:
+ if(unlikely(rd->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(!(rd->flags & 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;
+
+ if(unlikely(st->debug))
+ debug(D_RRD_STATS, "%s/%s: CALC INC PRE "
+ CALCULATED_NUMBER_FORMAT " = ("
+ COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT
+ ")"
+ " * " CALCULATED_NUMBER_FORMAT
+ " / " CALCULATED_NUMBER_FORMAT
+ , st->id, rd->name
+ , rd->calculated_value
+ , rd->collected_value, rd->last_collected_value
+ , (calculated_number)rd->multiplier
+ , (calculated_number)rd->divisor
+ );
+ break;
+
+ case RRDDIM_PCENT_OVER_DIFF_TOTAL:
+ if(unlikely(rd->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(!(rd->flags & 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);
+
+ if(unlikely(st->debug))
+ debug(D_RRD_STATS, "%s/%s: CALC PCENT-DIFF "
+ CALCULATED_NUMBER_FORMAT " = 100"
+ " * (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")"
+ " / (" COLLECTED_NUMBER_FORMAT " - " COLLECTED_NUMBER_FORMAT ")"
+ , st->id, rd->name
+ , rd->calculated_value
+ , rd->collected_value, rd->last_collected_value
+ , st->collected_total, st->last_collected_total
+ );
+ break;
+
+ default:
+ // make the default zero, to make sure
+ // it gets noticed when we add new types
+ rd->calculated_value = 0;
+
+ if(unlikely(st->debug))
+ debug(D_RRD_STATS, "%s/%s: CALC "
+ CALCULATED_NUMBER_FORMAT " = 0"
+ , st->id, rd->name
+ , rd->calculated_value
+ );
+ break;
+ }
+
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: PHASE2 "
+ " last_collected_value = " COLLECTED_NUMBER_FORMAT
+ " collected_value = " COLLECTED_NUMBER_FORMAT
+ " last_calculated_value = " CALCULATED_NUMBER_FORMAT
+ " calculated_value = " CALCULATED_NUMBER_FORMAT
+ , st->id, rd->name
+ , rd->last_collected_value
+ , rd->collected_value
+ , rd->last_calculated_value
+ , rd->calculated_value
+ );
+
+ }
+
+ // at this point we have all the calculated values ready
+ // it is now time to interpolate values on a second boundary
+
+ unsigned long long first_ut = last_ut;
+ long long iterations = (now_ut - last_ut) / (st->update_every * 1000000ULL);
+ if((now_ut % (st->update_every * 1000000ULL)) == 0) iterations++;
+
+ for( ; likely(next_ut <= now_ut) ; next_ut += st->update_every * 1000000ULL, iterations-- ) {
#ifdef NETDATA_INTERNAL_CHECKS
- if(iterations < 0) { error("%s: iterations calculation wrapped! first_ut = %llu, last_ut = %llu, next_ut = %llu, now_ut = %llu", st->name, first_ut, last_ut, next_ut, now_ut); }
+ if(iterations < 0) { error("%s: iterations calculation wrapped! first_ut = %llu, last_ut = %llu, next_ut = %llu, now_ut = %llu", st->name, first_ut, last_ut, next_ut, now_ut); }
#endif
- if(unlikely(st->debug)) {
- debug(D_RRD_STATS, "%s: last ut = %0.3Lf (last updated time)", st->name, (long double)last_ut/1000000.0);
- debug(D_RRD_STATS, "%s: next ut = %0.3Lf (next interpolation point)", st->name, (long double)next_ut/1000000.0);
- }
-
- st->last_updated.tv_sec = (time_t) (next_ut / 1000000ULL);
- st->last_updated.tv_usec = 0;
-
- for( rd = st->dimensions ; likely(rd) ; rd = rd->next ) {
- calculated_number new_value;
-
- switch(rd->algorithm) {
- case RRDDIM_INCREMENTAL:
- new_value = (calculated_number)
- ( rd->calculated_value
- * (calculated_number)(next_ut - last_ut)
- / (calculated_number)(now_ut - last_ut)
- );
-
- if(unlikely(st->debug))
- debug(D_RRD_STATS, "%s/%s: CALC2 INC "
- CALCULATED_NUMBER_FORMAT " = "
- CALCULATED_NUMBER_FORMAT
- " * %llu"
- " / %llu"
- , st->id, rd->name
- , new_value
- , rd->calculated_value
- , (next_ut - last_ut)
- , (now_ut - last_ut)
- );
-
- rd->calculated_value -= new_value;
- new_value += rd->last_calculated_value;
- rd->last_calculated_value = 0;
- new_value /= (calculated_number)st->update_every;
- break;
-
- case RRDDIM_ABSOLUTE:
- case RRDDIM_PCENT_OVER_ROW_TOTAL:
- case RRDDIM_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_ut - first_ut)
- / (calculated_number)(now_ut - first_ut)
- )
- + rd->last_calculated_value
- );
-
- if(unlikely(st->debug))
- debug(D_RRD_STATS, "%s/%s: CALC2 DEF "
- CALCULATED_NUMBER_FORMAT " = ((("
- "(" CALCULATED_NUMBER_FORMAT " - " CALCULATED_NUMBER_FORMAT ")"
- " * %llu"
- " / %llu) + " CALCULATED_NUMBER_FORMAT
- , st->id, rd->name
- , new_value
- , rd->calculated_value, rd->last_calculated_value
- , (next_ut - first_ut)
- , (now_ut - first_ut), rd->last_calculated_value
- );
-
- // this is wrong
- // it fades the value towards the target
- // while we know the calculated value is different
- // if(likely(next_ut + st->update_every * 1000000ULL > now_ut)) rd->calculated_value = new_value;
- }
- break;
- }
-
- if(unlikely(!store_this_entry)) {
- store_this_entry = 1;
- continue;
- }
-
- if(likely(rd->updated && rd->counter > 1 && iterations < st->gap_when_lost_iterations_above)) {
- rd->values[st->current_entry] = pack_storage_number(new_value, storage_flags );
-
- if(unlikely(st->debug))
- debug(D_RRD_STATS, "%s/%s: STORE[%ld] "
- CALCULATED_NUMBER_FORMAT " = " CALCULATED_NUMBER_FORMAT
- , st->id, rd->name
- , st->current_entry
- , unpack_storage_number(rd->values[st->current_entry]), new_value
- );
- }
- else {
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: STORE[%ld] = NON EXISTING "
- , st->id, rd->name
- , st->current_entry
- );
- rd->values[st->current_entry] = pack_storage_number(0, SN_NOT_EXISTS);
- }
-
- stored_entries++;
-
- if(unlikely(st->debug)) {
- calculated_number t1 = new_value * (calculated_number)rd->multiplier / (calculated_number)rd->divisor;
- calculated_number t2 = unpack_storage_number(rd->values[st->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
- , st->current_entry
- , t2
- , get_storage_number_flags(rd->values[st->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
- , st->current_entry
- , rd->stored_volume
- , rd->collected_volume
- , accuracy
- , (accuracy > ACCURACY_LOSS) ? " **TOO BIG** " : ""
- );
-
- }
- }
- // reset the storage flags for the next point, if any;
- storage_flags = SN_EXISTS;
-
- st->counter++;
- st->current_entry = ((st->current_entry + 1) >= st->entries) ? 0 : st->current_entry + 1;
- last_ut = next_ut;
- }
-
- // align next interpolation to last collection point
- if(likely(stored_entries || !store_this_entry)) {
- st->last_updated.tv_sec = st->last_collected_time.tv_sec;
- st->last_updated.tv_usec = st->last_collected_time.tv_usec;
- }
-
- for( rd = st->dimensions; likely(rd) ; rd = rd->next ) {
- if(unlikely(!rd->updated)) continue;
-
- if(likely(stored_entries || !store_this_entry)) {
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: setting last_collected_value (old: " COLLECTED_NUMBER_FORMAT ") to last_collected_value (new: " COLLECTED_NUMBER_FORMAT ")", st->id, rd->name, rd->last_collected_value, rd->collected_value);
- rd->last_collected_value = rd->collected_value;
-
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: setting last_calculated_value (old: " CALCULATED_NUMBER_FORMAT ") to last_calculated_value (new: " CALCULATED_NUMBER_FORMAT ")", st->id, rd->name, rd->last_calculated_value, rd->calculated_value);
- rd->last_calculated_value = rd->calculated_value;
- }
-
- rd->calculated_value = 0;
- rd->collected_value = 0;
- rd->updated = 0;
-
- if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: END "
- " last_collected_value = " COLLECTED_NUMBER_FORMAT
- " collected_value = " COLLECTED_NUMBER_FORMAT
- " last_calculated_value = " CALCULATED_NUMBER_FORMAT
- " calculated_value = " CALCULATED_NUMBER_FORMAT
- , st->id, rd->name
- , rd->last_collected_value
- , rd->collected_value
- , rd->last_calculated_value
- , rd->calculated_value
- );
- }
- st->last_collected_total = st->collected_total;
-
- // 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)) {
- // there is dimension to free
- // upgrade our read lock to a write lock
- pthread_rwlock_unlock(&st->rwlock);
- pthread_rwlock_wrlock(&st->rwlock);
-
- 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;
- }
- }
- }
-
- pthread_rwlock_unlock(&st->rwlock);
-
- if(unlikely(pthread_setcancelstate(oldstate, NULL) != 0))
- error("Cannot set pthread cancel state to RESTORE (%d).", oldstate);
-
- return(st->usec_since_last_update);
+ if(unlikely(st->debug)) {
+ debug(D_RRD_STATS, "%s: last ut = %0.3Lf (last updated time)", st->name, (long double)last_ut/1000000.0);
+ debug(D_RRD_STATS, "%s: next ut = %0.3Lf (next interpolation point)", st->name, (long double)next_ut/1000000.0);
+ }
+
+ st->last_updated.tv_sec = (time_t) (next_ut / 1000000ULL);
+ st->last_updated.tv_usec = 0;
+
+ for( rd = st->dimensions ; likely(rd) ; rd = rd->next ) {
+ calculated_number new_value;
+
+ switch(rd->algorithm) {
+ case RRDDIM_INCREMENTAL:
+ new_value = (calculated_number)
+ ( rd->calculated_value
+ * (calculated_number)(next_ut - last_ut)
+ / (calculated_number)(now_ut - last_ut)
+ );
+
+ if(unlikely(st->debug))
+ debug(D_RRD_STATS, "%s/%s: CALC2 INC "
+ CALCULATED_NUMBER_FORMAT " = "
+ CALCULATED_NUMBER_FORMAT
+ " * %llu"
+ " / %llu"
+ , st->id, rd->name
+ , new_value
+ , rd->calculated_value
+ , (next_ut - last_ut)
+ , (now_ut - last_ut)
+ );
+
+ rd->calculated_value -= new_value;
+ new_value += rd->last_calculated_value;
+ rd->last_calculated_value = 0;
+ new_value /= (calculated_number)st->update_every;
+ break;
+
+ case RRDDIM_ABSOLUTE:
+ case RRDDIM_PCENT_OVER_ROW_TOTAL:
+ case RRDDIM_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_ut - first_ut)
+ / (calculated_number)(now_ut - first_ut)
+ )
+ + rd->last_calculated_value
+ );
+
+ if(unlikely(st->debug))
+ debug(D_RRD_STATS, "%s/%s: CALC2 DEF "
+ CALCULATED_NUMBER_FORMAT " = ((("
+ "(" CALCULATED_NUMBER_FORMAT " - " CALCULATED_NUMBER_FORMAT ")"
+ " * %llu"
+ " / %llu) + " CALCULATED_NUMBER_FORMAT
+ , st->id, rd->name
+ , new_value
+ , rd->calculated_value, rd->last_calculated_value
+ , (next_ut - first_ut)
+ , (now_ut - first_ut), rd->last_calculated_value
+ );
+
+ // this is wrong
+ // it fades the value towards the target
+ // while we know the calculated value is different
+ // if(likely(next_ut + st->update_every * 1000000ULL > now_ut)) rd->calculated_value = new_value;
+ }
+ break;
+ }
+
+ if(unlikely(!store_this_entry)) {
+ // store_this_entry = 1;
+ continue;
+ }
+
+ if(likely(rd->updated && rd->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;
+
+ if(unlikely(st->debug))
+ debug(D_RRD_STATS, "%s/%s: STORE[%ld] "
+ CALCULATED_NUMBER_FORMAT " = " CALCULATED_NUMBER_FORMAT
+ , st->id, rd->name
+ , st->current_entry
+ , unpack_storage_number(rd->values[st->current_entry]), new_value
+ );
+ }
+ else {
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: STORE[%ld] = NON EXISTING "
+ , st->id, rd->name
+ , st->current_entry
+ );
+ rd->values[st->current_entry] = pack_storage_number(0, SN_NOT_EXISTS);
+ rd->last_stored_value = NAN;
+ }
+
+ stored_entries++;
+
+ if(unlikely(st->debug)) {
+ calculated_number t1 = new_value * (calculated_number)rd->multiplier / (calculated_number)rd->divisor;
+ calculated_number t2 = unpack_storage_number(rd->values[st->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
+ , st->current_entry
+ , t2
+ , get_storage_number_flags(rd->values[st->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
+ , st->current_entry
+ , rd->stored_volume
+ , rd->collected_volume
+ , accuracy
+ , (accuracy > ACCURACY_LOSS) ? " **TOO BIG** " : ""
+ );
+
+ }
+ }
+ // reset the storage flags for the next point, if any;
+ storage_flags = SN_EXISTS;
+
+ st->counter++;
+ st->current_entry = ((st->current_entry + 1) >= st->entries) ? 0 : st->current_entry + 1;
+ last_ut = next_ut;
+ }
+
+ // align next interpolation to last collection point
+ if(likely(stored_entries || !store_this_entry)) {
+ st->last_updated.tv_sec = st->last_collected_time.tv_sec;
+ st->last_updated.tv_usec = st->last_collected_time.tv_usec;
+ st->last_collected_total = st->collected_total;
+ }
+
+ for( rd = st->dimensions; likely(rd) ; rd = rd->next ) {
+ if(unlikely(!rd->updated)) continue;
+
+ if(likely(stored_entries || !store_this_entry)) {
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: setting last_collected_value (old: " COLLECTED_NUMBER_FORMAT ") to last_collected_value (new: " COLLECTED_NUMBER_FORMAT ")", st->id, rd->name, rd->last_collected_value, rd->collected_value);
+ rd->last_collected_value = rd->collected_value;
+
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: setting last_calculated_value (old: " CALCULATED_NUMBER_FORMAT ") to last_calculated_value (new: " CALCULATED_NUMBER_FORMAT ")", st->id, rd->name, rd->last_calculated_value, rd->calculated_value);
+ rd->last_calculated_value = rd->calculated_value;
+ }
+
+ rd->calculated_value = 0;
+ rd->collected_value = 0;
+ rd->updated = 0;
+
+ if(unlikely(st->debug)) debug(D_RRD_STATS, "%s/%s: END "
+ " last_collected_value = " COLLECTED_NUMBER_FORMAT
+ " collected_value = " COLLECTED_NUMBER_FORMAT
+ " last_calculated_value = " CALCULATED_NUMBER_FORMAT
+ " calculated_value = " CALCULATED_NUMBER_FORMAT
+ , st->id, rd->name
+ , rd->last_collected_value
+ , rd->collected_value
+ , rd->last_calculated_value
+ , rd->calculated_value
+ );
+ }
+
+ // 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)) {
+ // there is dimension to free
+ // upgrade our read lock to a write lock
+ pthread_rwlock_unlock(&st->rwlock);
+ pthread_rwlock_wrlock(&st->rwlock);
+
+ 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;
+ }
+ }
+ }
+
+ pthread_rwlock_unlock(&st->rwlock);
+
+ if(unlikely(pthread_setcancelstate(oldstate, NULL) != 0))
+ error("Cannot set pthread cancel state to RESTORE (%d).", oldstate);
+
+ return(st->usec_since_last_update);
}