src/web_client.h
src/web_server.c
src/web_server.h
- src/rrdhost.c src/rrdfamily.c src/rrdset.c src/rrddim.c src/health_log.c src/health_config.c src/health_json.c)
+ src/rrdhost.c src/rrdfamily.c src/rrdset.c src/rrddim.c src/health_log.c src/health_config.c src/health_json.c src/rrdcalc.c src/rrdcalctemplate.c src/rrdvar.c src/rrddimvar.c src/rrdsetvar.c)
set(APPS_PLUGIN_SOURCE_FILES
src/appconfig.c
rrdfamily.c \
rrdhost.c \
rrdset.c \
+ rrdcalc.c \
+ rrdcalctemplate.c \
+ rrdvar.c \
+ rrddimvar.c \
+ rrdsetvar.c \
rrd2json.c rrd2json.h \
storage_number.c storage_number.h \
unit_test.c unit_test.h \
#define NETDATA_HEALTH_INTERNALS
#include "common.h"
-#define RRDVAR_MAX_LENGTH 1024
-
int default_localhost_health_enabled = 1;
-// ----------------------------------------------------------------------------
-// RRDVAR management
-
-inline int rrdvar_fix_name(char *variable) {
- int fixed = 0;
- while(*variable) {
- if (!isalnum(*variable) && *variable != '.' && *variable != '_') {
- *variable++ = '_';
- fixed++;
- }
- else
- variable++;
- }
-
- return fixed;
-}
-
-int rrdvar_compare(void* a, void* b) {
- if(((RRDVAR *)a)->hash < ((RRDVAR *)b)->hash) return -1;
- else if(((RRDVAR *)a)->hash > ((RRDVAR *)b)->hash) return 1;
- else return strcmp(((RRDVAR *)a)->name, ((RRDVAR *)b)->name);
-}
-
-static inline RRDVAR *rrdvar_index_add(avl_tree_lock *tree, RRDVAR *rv) {
- RRDVAR *ret = (RRDVAR *)avl_insert_lock(tree, (avl *)(rv));
- if(ret != rv)
- debug(D_VARIABLES, "Request to insert RRDVAR '%s' into index failed. Already exists.", rv->name);
-
- return ret;
-}
-
-static inline RRDVAR *rrdvar_index_del(avl_tree_lock *tree, RRDVAR *rv) {
- RRDVAR *ret = (RRDVAR *)avl_remove_lock(tree, (avl *)(rv));
- if(!ret)
- error("Request to remove RRDVAR '%s' from index failed. Not Found.", rv->name);
-
- return ret;
-}
-
-static inline RRDVAR *rrdvar_index_find(avl_tree_lock *tree, const char *name, uint32_t hash) {
- RRDVAR tmp;
- tmp.name = (char *)name;
- tmp.hash = (hash)?hash:simple_hash(tmp.name);
-
- return (RRDVAR *)avl_search_lock(tree, (avl *)&tmp);
-}
-
-static inline void rrdvar_free(RRDHOST *host, avl_tree_lock *tree, RRDVAR *rv) {
- (void)host;
-
- if(!rv) return;
-
- if(tree) {
- debug(D_VARIABLES, "Deleting variable '%s'", rv->name);
- if(unlikely(!rrdvar_index_del(tree, rv)))
- error("Attempted to delete variable '%s' from host '%s', but it is not found.", rv->name, host->hostname);
- }
-
- freez(rv->name);
- freez(rv);
-}
-
-static inline RRDVAR *rrdvar_create_and_index(const char *scope, avl_tree_lock *tree, const char *name, int type, void *value) {
- char *variable = strdupz(name);
- rrdvar_fix_name(variable);
- uint32_t hash = simple_hash(variable);
-
- RRDVAR *rv = rrdvar_index_find(tree, variable, hash);
- if(unlikely(!rv)) {
- debug(D_VARIABLES, "Variable '%s' not found in scope '%s'. Creating a new one.", variable, scope);
-
- rv = callocz(1, sizeof(RRDVAR));
- rv->name = variable;
- rv->hash = hash;
- rv->type = type;
- rv->value = value;
-
- RRDVAR *ret = rrdvar_index_add(tree, rv);
- if(unlikely(ret != rv)) {
- debug(D_VARIABLES, "Variable '%s' in scope '%s' already exists", variable, scope);
- rrdvar_free(NULL, NULL, rv);
- rv = NULL;
- }
- else
- debug(D_VARIABLES, "Variable '%s' created in scope '%s'", variable, scope);
- }
- else {
- debug(D_VARIABLES, "Variable '%s' is already found in scope '%s'.", variable, scope);
-
- // already exists
- freez(variable);
-
- // this is important
- // it must return NULL - not the existing variable - or double-free will happen
- rv = NULL;
- }
-
- return rv;
-}
-
-// ----------------------------------------------------------------------------
-// CUSTOM VARIABLES
-
-RRDVAR *rrdvar_custom_host_variable_create(RRDHOST *host, const char *name) {
- calculated_number *v = callocz(1, sizeof(calculated_number));
- *v = NAN;
- RRDVAR *rv = rrdvar_create_and_index("host", &host->variables_root_index, name, RRDVAR_TYPE_CALCULATED_ALLOCATED, v);
- if(unlikely(!rv)) {
- free(v);
- error("Requested variable '%s' already exists - possibly 2 plugins will be updating it at the same time", name);
-
- char *variable = strdupz(name);
- rrdvar_fix_name(variable);
- uint32_t hash = simple_hash(variable);
-
- rv = rrdvar_index_find(&host->variables_root_index, variable, hash);
- }
-
- return rv;
-}
-
-void rrdvar_custom_host_variable_destroy(RRDHOST *host, const char *name) {
- char *variable = strdupz(name);
- rrdvar_fix_name(variable);
- uint32_t hash = simple_hash(variable);
-
- RRDVAR *rv = rrdvar_index_find(&host->variables_root_index, variable, hash);
- freez(variable);
-
- if(!rv) {
- error("Attempted to remove variable '%s' from host '%s', but it does not exist.", name, host->hostname);
- return;
- }
-
- if(rv->type != RRDVAR_TYPE_CALCULATED_ALLOCATED) {
- error("Attempted to remove variable '%s' from host '%s', but it does not a custom allocated variable.", name, host->hostname);
- return;
- }
-
- if(!rrdvar_index_del(&host->variables_root_index, rv)) {
- error("Attempted to remove variable '%s' from host '%s', but it cannot be found.", name, host->hostname);
- return;
- }
-
- freez(rv->name);
- freez(rv->value);
- freez(rv);
-}
-
-void rrdvar_custom_host_variable_set(RRDVAR *rv, calculated_number value) {
- if(rv->type != RRDVAR_TYPE_CALCULATED_ALLOCATED)
- error("requested to set variable '%s' to value " CALCULATED_NUMBER_FORMAT " but the variable is not a custom one.", rv->name, value);
- else {
- calculated_number *v = rv->value;
- *v = value;
- }
-}
-
-// ----------------------------------------------------------------------------
-// RRDVAR lookup
-
-static calculated_number rrdvar2number(RRDVAR *rv) {
- switch(rv->type) {
- case RRDVAR_TYPE_CALCULATED_ALLOCATED:
- case RRDVAR_TYPE_CALCULATED: {
- calculated_number *n = (calculated_number *)rv->value;
- return *n;
- }
-
- case RRDVAR_TYPE_TIME_T: {
- time_t *n = (time_t *)rv->value;
- return *n;
- }
-
- case RRDVAR_TYPE_COLLECTED: {
- collected_number *n = (collected_number *)rv->value;
- return *n;
- }
-
- case RRDVAR_TYPE_TOTAL: {
- total_number *n = (total_number *)rv->value;
- return *n;
- }
-
- case RRDVAR_TYPE_INT: {
- int *n = (int *)rv->value;
- return *n;
- }
-
- default:
- error("I don't know how to convert RRDVAR type %d to calculated_number", rv->type);
- return NAN;
- }
-}
-
-int health_variable_lookup(const char *variable, uint32_t hash, RRDCALC *rc, calculated_number *result) {
- RRDSET *st = rc->rrdset;
- RRDVAR *rv;
-
- if(!st) return 0;
-
- rv = rrdvar_index_find(&st->variables_root_index, variable, hash);
- if(rv) {
- *result = rrdvar2number(rv);
- return 1;
- }
-
- rv = rrdvar_index_find(&st->rrdfamily->variables_root_index, variable, hash);
- if(rv) {
- *result = rrdvar2number(rv);
- return 1;
- }
-
- rv = rrdvar_index_find(&st->rrdhost->variables_root_index, variable, hash);
- if(rv) {
- *result = rrdvar2number(rv);
- return 1;
- }
-
- return 0;
-}
-
-// ----------------------------------------------------------------------------
-// RRDVAR to JSON
-
-struct variable2json_helper {
- BUFFER *buf;
- size_t counter;
-};
-
-static int single_variable2json(void *entry, void *data) {
- struct variable2json_helper *helper = (struct variable2json_helper *)data;
- RRDVAR *rv = (RRDVAR *)entry;
- calculated_number value = rrdvar2number(rv);
-
- if(unlikely(isnan(value) || isinf(value)))
- buffer_sprintf(helper->buf, "%s\n\t\t\"%s\": null", helper->counter?",":"", rv->name);
- else
- buffer_sprintf(helper->buf, "%s\n\t\t\"%s\": %0.5Lf", helper->counter?",":"", rv->name, (long double)value);
-
- helper->counter++;
-
- return 0;
-}
-
-void health_api_v1_chart_variables2json(RRDSET *st, BUFFER *buf) {
- struct variable2json_helper helper = {
- .buf = buf,
- .counter = 0
- };
-
- buffer_sprintf(buf, "{\n\t\"chart\": \"%s\",\n\t\"chart_name\": \"%s\",\n\t\"chart_context\": \"%s\",\n\t\"chart_variables\": {", st->id, st->name, st->context);
- avl_traverse_lock(&st->variables_root_index, single_variable2json, (void *)&helper);
- buffer_sprintf(buf, "\n\t},\n\t\"family\": \"%s\",\n\t\"family_variables\": {", st->family);
- helper.counter = 0;
- avl_traverse_lock(&st->rrdfamily->variables_root_index, single_variable2json, (void *)&helper);
- buffer_sprintf(buf, "\n\t},\n\t\"host\": \"%s\",\n\t\"host_variables\": {", st->rrdhost->hostname);
- helper.counter = 0;
- avl_traverse_lock(&st->rrdhost->variables_root_index, single_variable2json, (void *)&helper);
- buffer_strcat(buf, "\n\t}\n}\n");
-}
-
-
-// ----------------------------------------------------------------------------
-// RRDDIMVAR management
-// DIMENSION VARIABLES
-
-#define RRDDIMVAR_ID_MAX 1024
-
-static inline void rrddimvar_free_variables(RRDDIMVAR *rs) {
- RRDDIM *rd = rs->rrddim;
- RRDSET *st = rd->rrdset;
-
- // CHART VARIABLES FOR THIS DIMENSION
-
- rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local_id);
- rs->var_local_id = NULL;
-
- rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local_name);
- rs->var_local_name = NULL;
-
- // FAMILY VARIABLES FOR THIS DIMENSION
-
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_id);
- rs->var_family_id = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_name);
- rs->var_family_name = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_contextid);
- rs->var_family_contextid = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_contextname);
- rs->var_family_contextname = NULL;
-
- // HOST VARIABLES FOR THIS DIMENSION
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartidid);
- rs->var_host_chartidid = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartidname);
- rs->var_host_chartidname = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartnameid);
- rs->var_host_chartnameid = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartnamename);
- rs->var_host_chartnamename = NULL;
-
- // KEYS
-
- freez(rs->key_id);
- rs->key_id = NULL;
-
- freez(rs->key_name);
- rs->key_name = NULL;
-
- freez(rs->key_fullidid);
- rs->key_fullidid = NULL;
-
- freez(rs->key_fullidname);
- rs->key_fullidname = NULL;
-
- freez(rs->key_contextid);
- rs->key_contextid = NULL;
-
- freez(rs->key_contextname);
- rs->key_contextname = NULL;
-
- freez(rs->key_fullnameid);
- rs->key_fullnameid = NULL;
-
- freez(rs->key_fullnamename);
- rs->key_fullnamename = NULL;
-}
-
-static inline void rrddimvar_create_variables(RRDDIMVAR *rs) {
- rrddimvar_free_variables(rs);
-
- RRDDIM *rd = rs->rrddim;
- RRDSET *st = rd->rrdset;
-
- char buffer[RRDDIMVAR_ID_MAX + 1];
-
- // KEYS
-
- snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s%s%s", rs->prefix, rd->id, rs->suffix);
- rs->key_id = strdupz(buffer);
-
- snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s%s%s", rs->prefix, rd->name, rs->suffix);
- rs->key_name = strdupz(buffer);
-
- snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->id, rs->key_id);
- rs->key_fullidid = strdupz(buffer);
-
- snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->id, rs->key_name);
- rs->key_fullidname = strdupz(buffer);
-
- snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->context, rs->key_id);
- rs->key_contextid = strdupz(buffer);
-
- snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->context, rs->key_name);
- rs->key_contextname = strdupz(buffer);
-
- snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->name, rs->key_id);
- rs->key_fullnameid = strdupz(buffer);
-
- snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->name, rs->key_name);
- rs->key_fullnamename = strdupz(buffer);
-
- // CHART VARIABLES FOR THIS DIMENSION
- // -----------------------------------
- //
- // dimensions are available as:
- // - $id
- // - $name
-
- rs->var_local_id = rrdvar_create_and_index("local", &st->variables_root_index, rs->key_id, rs->type, rs->value);
- rs->var_local_name = rrdvar_create_and_index("local", &st->variables_root_index, rs->key_name, rs->type, rs->value);
-
- // FAMILY VARIABLES FOR THIS DIMENSION
- // -----------------------------------
- //
- // dimensions are available as:
- // - $id (only the first, when multiple overlap)
- // - $name (only the first, when multiple overlap)
- // - $chart-context.id
- // - $chart-context.name
-
- rs->var_family_id = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_id, rs->type, rs->value);
- rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_name, rs->type, rs->value);
- rs->var_family_contextid = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_contextid, rs->type, rs->value);
- rs->var_family_contextname = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_contextname, rs->type, rs->value);
-
- // HOST VARIABLES FOR THIS DIMENSION
- // -----------------------------------
- //
- // dimensions are available as:
- // - $chart-id.id
- // - $chart-id.name
- // - $chart-name.id
- // - $chart-name.name
-
- rs->var_host_chartidid = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullidid, rs->type, rs->value);
- rs->var_host_chartidname = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullidname, rs->type, rs->value);
- rs->var_host_chartnameid = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullnameid, rs->type, rs->value);
- rs->var_host_chartnamename = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullnamename, rs->type, rs->value);
-}
-
-RRDDIMVAR *rrddimvar_create(RRDDIM *rd, int type, const char *prefix, const char *suffix, void *value, uint32_t options) {
- RRDSET *st = rd->rrdset;
-
- debug(D_VARIABLES, "RRDDIMSET create for chart id '%s' name '%s', dimension id '%s', name '%s%s%s'", st->id, st->name, rd->id, (prefix)?prefix:"", rd->name, (suffix)?suffix:"");
-
- if(!prefix) prefix = "";
- if(!suffix) suffix = "";
-
- RRDDIMVAR *rs = (RRDDIMVAR *)callocz(1, sizeof(RRDDIMVAR));
-
- rs->prefix = strdupz(prefix);
- rs->suffix = strdupz(suffix);
-
- rs->type = type;
- rs->value = value;
- rs->options = options;
- rs->rrddim = rd;
-
- rs->next = rd->variables;
- rd->variables = rs;
-
- rrddimvar_create_variables(rs);
-
- return rs;
-}
-
-void rrddimvar_rename_all(RRDDIM *rd) {
- RRDSET *st = rd->rrdset;
- debug(D_VARIABLES, "RRDDIMSET rename for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name);
-
- RRDDIMVAR *rs, *next = rd->variables;
- while((rs = next)) {
- next = rs->next;
- rrddimvar_create_variables(rs);
- }
-}
-
-void rrddimvar_free(RRDDIMVAR *rs) {
- RRDDIM *rd = rs->rrddim;
- RRDSET *st = rd->rrdset;
- debug(D_VARIABLES, "RRDDIMSET free for chart id '%s' name '%s', dimension id '%s', name '%s', prefix='%s', suffix='%s'", st->id, st->name, rd->id, rd->name, rs->prefix, rs->suffix);
-
- rrddimvar_free_variables(rs);
-
- if(rd->variables == rs) {
- debug(D_VARIABLES, "RRDDIMSET removing first entry for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name);
- rd->variables = rs->next;
- }
- else {
- debug(D_VARIABLES, "RRDDIMSET removing non-first entry for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name);
- RRDDIMVAR *t;
- for (t = rd->variables; t && t->next != rs; t = t->next) ;
- if(!t) error("RRDDIMVAR '%s' not found in dimension '%s/%s' variables linked list", rs->key_name, st->id, rd->id);
- else t->next = rs->next;
- }
-
- freez(rs->prefix);
- freez(rs->suffix);
- freez(rs);
-}
-
-// ----------------------------------------------------------------------------
-// RRDSETVAR management
-// CHART VARIABLES
-
-static inline void rrdsetvar_free_variables(RRDSETVAR *rs) {
- RRDSET *st = rs->rrdset;
-
- // CHART
-
- rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local);
- rs->var_local = NULL;
-
- // FAMILY
-
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family);
- rs->var_family = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host);
- rs->var_host = NULL;
-
- // HOST
-
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_name);
- rs->var_family_name = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_name);
- rs->var_host_name = NULL;
-
- // KEYS
-
- freez(rs->key_fullid);
- rs->key_fullid = NULL;
-
- freez(rs->key_fullname);
- rs->key_fullname = NULL;
-}
-
-static inline void rrdsetvar_create_variables(RRDSETVAR *rs) {
- rrdsetvar_free_variables(rs);
-
- RRDSET *st = rs->rrdset;
-
- // KEYS
-
- char buffer[RRDVAR_MAX_LENGTH + 1];
- snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->id, rs->variable);
- rs->key_fullid = strdupz(buffer);
-
- snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rs->variable);
- rs->key_fullname = strdupz(buffer);
-
- // CHART
-
- rs->var_local = rrdvar_create_and_index("local", &st->variables_root_index, rs->variable, rs->type, rs->value);
-
- // FAMILY
-
- rs->var_family = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_fullid, rs->type, rs->value);
- rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_fullname, rs->type, rs->value);
-
- // HOST
-
- rs->var_host = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullid, rs->type, rs->value);
- rs->var_host_name = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullname, rs->type, rs->value);
-
-}
-
-RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, int type, void *value, uint32_t options) {
- debug(D_VARIABLES, "RRDVARSET create for chart id '%s' name '%s' with variable name '%s'", st->id, st->name, variable);
- RRDSETVAR *rs = (RRDSETVAR *)callocz(1, sizeof(RRDSETVAR));
-
- rs->variable = strdupz(variable);
- rs->type = type;
- rs->value = value;
- rs->options = options;
- rs->rrdset = st;
-
- rs->next = st->variables;
- st->variables = rs;
-
- rrdsetvar_create_variables(rs);
-
- return rs;
-}
-
-void rrdsetvar_rename_all(RRDSET *st) {
- debug(D_VARIABLES, "RRDSETVAR rename for chart id '%s' name '%s'", st->id, st->name);
-
- RRDSETVAR *rs, *next = st->variables;
- while((rs = next)) {
- next = rs->next;
- rrdsetvar_create_variables(rs);
- }
-
- rrdsetcalc_link_matching(st);
-}
-
-void rrdsetvar_free(RRDSETVAR *rs) {
- RRDSET *st = rs->rrdset;
- debug(D_VARIABLES, "RRDSETVAR free for chart id '%s' name '%s', variable '%s'", st->id, st->name, rs->variable);
-
- if(st->variables == rs) {
- st->variables = rs->next;
- }
- else {
- RRDSETVAR *t;
- for (t = st->variables; t && t->next != rs; t = t->next);
- if(!t) error("RRDSETVAR '%s' not found in chart '%s' variables linked list", rs->key_fullname, st->id);
- else t->next = rs->next;
- }
-
- rrdsetvar_free_variables(rs);
-
- freez(rs->variable);
- freez(rs);
-}
-
-// ----------------------------------------------------------------------------
-// RRDCALC management
-
-inline const char *rrdcalc_status2string(int status) {
- switch(status) {
- case RRDCALC_STATUS_REMOVED:
- return "REMOVED";
-
- case RRDCALC_STATUS_UNDEFINED:
- return "UNDEFINED";
-
- case RRDCALC_STATUS_UNINITIALIZED:
- return "UNINITIALIZED";
-
- case RRDCALC_STATUS_CLEAR:
- return "CLEAR";
-
- case RRDCALC_STATUS_RAISED:
- return "RAISED";
-
- case RRDCALC_STATUS_WARNING:
- return "WARNING";
-
- case RRDCALC_STATUS_CRITICAL:
- return "CRITICAL";
-
- default:
- error("Unknown alarm status %d", status);
- return "UNKNOWN";
- }
-}
-
-static void rrdsetcalc_link(RRDSET *st, RRDCALC *rc) {
- debug(D_HEALTH, "Health linking alarm '%s.%s' to chart '%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, st->id, st->rrdhost->hostname);
-
- rc->last_status_change = now_realtime_sec();
- rc->rrdset = st;
-
- rc->rrdset_next = st->alarms;
- rc->rrdset_prev = NULL;
-
- if(rc->rrdset_next)
- rc->rrdset_next->rrdset_prev = rc;
-
- st->alarms = rc;
-
- if(rc->update_every < rc->rrdset->update_every) {
- error("Health alarm '%s.%s' has update every %d, less than chart update every %d. Setting alarm update frequency to %d.", rc->rrdset->id, rc->name, rc->update_every, rc->rrdset->update_every, rc->rrdset->update_every);
- rc->update_every = rc->rrdset->update_every;
- }
-
- if(!isnan(rc->green) && isnan(st->green)) {
- debug(D_HEALTH, "Health alarm '%s.%s' green threshold set from %Lf to %Lf.", rc->rrdset->id, rc->name, rc->rrdset->green, rc->green);
- st->green = rc->green;
- }
-
- if(!isnan(rc->red) && isnan(st->red)) {
- debug(D_HEALTH, "Health alarm '%s.%s' red threshold set from %Lf to %Lf.", rc->rrdset->id, rc->name, rc->rrdset->red, rc->red);
- st->red = rc->red;
- }
-
- rc->local = rrdvar_create_and_index("local", &st->variables_root_index, rc->name, RRDVAR_TYPE_CALCULATED, &rc->value);
- rc->family = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rc->name, RRDVAR_TYPE_CALCULATED, &rc->value);
-
- char fullname[RRDVAR_MAX_LENGTH + 1];
- snprintfz(fullname, RRDVAR_MAX_LENGTH, "%s.%s", st->id, rc->name);
- rc->hostid = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, fullname, RRDVAR_TYPE_CALCULATED, &rc->value);
-
- snprintfz(fullname, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rc->name);
- rc->hostname = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, fullname, RRDVAR_TYPE_CALCULATED, &rc->value);
-
- if(!rc->units) rc->units = strdupz(st->units);
-
- {
- time_t now = now_realtime_sec();
- health_alarm_log(
- st->rrdhost,
- rc->id,
- rc->next_event_id++,
- now,
- rc->name,
- rc->rrdset->id,
- rc->rrdset->family,
- rc->exec,
- rc->recipient,
- now - rc->last_status_change,
- rc->old_value,
- rc->value,
- rc->status,
- RRDCALC_STATUS_UNINITIALIZED,
- rc->source,
- rc->units,
- rc->info,
- 0,
- 0
- );
- }
-}
-
-static inline int rrdcalc_is_matching_this_rrdset(RRDCALC *rc, RRDSET *st) {
- if( (rc->hash_chart == st->hash && !strcmp(rc->chart, st->id)) ||
- (rc->hash_chart == st->hash_name && !strcmp(rc->chart, st->name)))
- return 1;
-
- return 0;
-}
-
-// this has to be called while the RRDHOST is locked
-inline void rrdsetcalc_link_matching(RRDSET *st) {
- // debug(D_HEALTH, "find matching alarms for chart '%s'", st->id);
-
- RRDCALC *rc;
- for(rc = st->rrdhost->alarms; rc ; rc = rc->next) {
- if(unlikely(rc->rrdset))
- continue;
-
- if(unlikely(rrdcalc_is_matching_this_rrdset(rc, st)))
- rrdsetcalc_link(st, rc);
- }
-}
-
-// this has to be called while the RRDHOST is locked
-inline void rrdsetcalc_unlink(RRDCALC *rc) {
- RRDSET *st = rc->rrdset;
-
- if(!st) {
- debug(D_HEALTH, "Requested to unlink RRDCALC '%s.%s' which is not linked to any RRDSET", rc->chart?rc->chart:"NOCHART", rc->name);
- error("Requested to unlink RRDCALC '%s.%s' which is not linked to any RRDSET", rc->chart?rc->chart:"NOCHART", rc->name);
- return;
- }
-
- {
- time_t now = now_realtime_sec();
- health_alarm_log(
- st->rrdhost,
- rc->id,
- rc->next_event_id++,
- now,
- rc->name,
- rc->rrdset->id,
- rc->rrdset->family,
- rc->exec,
- rc->recipient,
- now - rc->last_status_change,
- rc->old_value,
- rc->value,
- rc->status,
- RRDCALC_STATUS_REMOVED,
- rc->source,
- rc->units,
- rc->info,
- 0,
- 0
- );
- }
-
- RRDHOST *host = st->rrdhost;
-
- debug(D_HEALTH, "Health unlinking alarm '%s.%s' from chart '%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, st->id, host->hostname);
-
- // unlink it
- if(rc->rrdset_prev)
- rc->rrdset_prev->rrdset_next = rc->rrdset_next;
-
- if(rc->rrdset_next)
- rc->rrdset_next->rrdset_prev = rc->rrdset_prev;
-
- if(st->alarms == rc)
- st->alarms = rc->rrdset_next;
-
- rc->rrdset_prev = rc->rrdset_next = NULL;
-
- rrdvar_free(st->rrdhost, &st->variables_root_index, rc->local);
- rc->local = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rc->family);
- rc->family = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rc->hostid);
- rc->hostid = NULL;
-
- rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rc->hostname);
- rc->hostname = NULL;
-
- rc->rrdset = NULL;
-
- // RRDCALC will remain in RRDHOST
- // so that if the matching chart is found in the future
- // it will be applied automatically
-}
-
-RRDCALC *rrdcalc_find(RRDSET *st, const char *name) {
- RRDCALC *rc;
- uint32_t hash = simple_hash(name);
-
- for( rc = st->alarms; rc ; rc = rc->rrdset_next ) {
- if(unlikely(rc->hash == hash && !strcmp(rc->name, name)))
- return rc;
- }
-
- return NULL;
-}
-
-inline int rrdcalc_exists(RRDHOST *host, const char *chart, const char *name, uint32_t hash_chart, uint32_t hash_name) {
- RRDCALC *rc;
-
- if(unlikely(!chart)) {
- error("attempt to find RRDCALC '%s' without giving a chart name", name);
- return 1;
- }
-
- if(unlikely(!hash_chart)) hash_chart = simple_hash(chart);
- if(unlikely(!hash_name)) hash_name = simple_hash(name);
-
- // make sure it does not already exist
- for(rc = host->alarms; rc ; rc = rc->next) {
- if (unlikely(rc->chart && rc->hash == hash_name && rc->hash_chart == hash_chart && !strcmp(name, rc->name) && !strcmp(chart, rc->chart))) {
- debug(D_HEALTH, "Health alarm '%s.%s' already exists in host '%s'.", chart, name, host->hostname);
- error("Health alarm '%s.%s' already exists in host '%s'.", chart, name, host->hostname);
- return 1;
- }
- }
-
- return 0;
-}
-
-inline uint32_t rrdcalc_get_unique_id(RRDHOST *host, const char *chart, const char *name, uint32_t *next_event_id) {
- if(chart && name) {
- uint32_t hash_chart = simple_hash(chart);
- uint32_t hash_name = simple_hash(name);
-
- // re-use old IDs, by looking them up in the alarm log
- ALARM_ENTRY *ae;
- for(ae = host->health_log.alarms; ae ;ae = ae->next) {
- if(unlikely(ae->hash_name == hash_name && ae->hash_chart == hash_chart && !strcmp(name, ae->name) && !strcmp(chart, ae->chart))) {
- if(next_event_id) *next_event_id = ae->alarm_event_id + 1;
- return ae->alarm_id;
- }
- }
- }
-
- return host->health_log.next_alarm_id++;
-}
-
-inline void rrdcalc_create_part2(RRDHOST *host, RRDCALC *rc) {
- rrdhost_check_rdlock(host);
-
- if(rc->calculation) {
- rc->calculation->status = &rc->status;
- rc->calculation->this = &rc->value;
- rc->calculation->after = &rc->db_after;
- rc->calculation->before = &rc->db_before;
- rc->calculation->rrdcalc = rc;
- }
-
- if(rc->warning) {
- rc->warning->status = &rc->status;
- rc->warning->this = &rc->value;
- rc->warning->after = &rc->db_after;
- rc->warning->before = &rc->db_before;
- rc->warning->rrdcalc = rc;
- }
-
- if(rc->critical) {
- rc->critical->status = &rc->status;
- rc->critical->this = &rc->value;
- rc->critical->after = &rc->db_after;
- rc->critical->before = &rc->db_before;
- rc->critical->rrdcalc = rc;
- }
-
- // link it to the host
- if(likely(host->alarms)) {
- // append it
- RRDCALC *t;
- for(t = host->alarms; t && t->next ; t = t->next) ;
- t->next = rc;
- }
- else {
- host->alarms = rc;
- }
-
- // link it to its chart
- RRDSET *st;
- for(st = host->rrdset_root; st ; st = st->next) {
- if(rrdcalc_is_matching_this_rrdset(rc, st)) {
- rrdsetcalc_link(st, rc);
- break;
- }
- }
-}
-
-static inline RRDCALC *rrdcalc_create(RRDHOST *host, RRDCALCTEMPLATE *rt, const char *chart) {
-
- debug(D_HEALTH, "Health creating dynamic alarm (from template) '%s.%s'", chart, rt->name);
-
- if(rrdcalc_exists(host, chart, rt->name, 0, 0))
- return NULL;
-
- RRDCALC *rc = callocz(1, sizeof(RRDCALC));
- rc->next_event_id = 1;
- rc->id = rrdcalc_get_unique_id(host, chart, rt->name, &rc->next_event_id);
- rc->name = strdupz(rt->name);
- rc->hash = simple_hash(rc->name);
- rc->chart = strdupz(chart);
- rc->hash_chart = simple_hash(rc->chart);
-
- if(rt->dimensions) rc->dimensions = strdupz(rt->dimensions);
-
- rc->green = rt->green;
- rc->red = rt->red;
- rc->value = NAN;
- rc->old_value = NAN;
-
- rc->delay_up_duration = rt->delay_up_duration;
- rc->delay_down_duration = rt->delay_down_duration;
- rc->delay_max_duration = rt->delay_max_duration;
- rc->delay_multiplier = rt->delay_multiplier;
-
- rc->group = rt->group;
- rc->after = rt->after;
- rc->before = rt->before;
- rc->update_every = rt->update_every;
- rc->options = rt->options;
-
- if(rt->exec) rc->exec = strdupz(rt->exec);
- if(rt->recipient) rc->recipient = strdupz(rt->recipient);
- if(rt->source) rc->source = strdupz(rt->source);
- if(rt->units) rc->units = strdupz(rt->units);
- if(rt->info) rc->info = strdupz(rt->info);
-
- if(rt->calculation) {
- rc->calculation = expression_parse(rt->calculation->source, NULL, NULL);
- if(!rc->calculation)
- error("Health alarm '%s.%s': failed to parse calculation expression '%s'", chart, rt->name, rt->calculation->source);
- }
- if(rt->warning) {
- rc->warning = expression_parse(rt->warning->source, NULL, NULL);
- if(!rc->warning)
- error("Health alarm '%s.%s': failed to re-parse warning expression '%s'", chart, rt->name, rt->warning->source);
- }
- if(rt->critical) {
- rc->critical = expression_parse(rt->critical->source, NULL, NULL);
- if(!rc->critical)
- error("Health alarm '%s.%s': failed to re-parse critical expression '%s'", chart, rt->name, rt->critical->source);
- }
-
- debug(D_HEALTH, "Health runtime added alarm '%s.%s': exec '%s', recipient '%s', green %Lf, red %Lf, lookup: group %d, after %d, before %d, options %u, dimensions '%s', update every %d, calculation '%s', warning '%s', critical '%s', source '%s', delay up %d, delay down %d, delay max %d, delay_multiplier %f",
- (rc->chart)?rc->chart:"NOCHART",
- rc->name,
- (rc->exec)?rc->exec:"DEFAULT",
- (rc->recipient)?rc->recipient:"DEFAULT",
- rc->green,
- rc->red,
- rc->group,
- rc->after,
- rc->before,
- rc->options,
- (rc->dimensions)?rc->dimensions:"NONE",
- rc->update_every,
- (rc->calculation)?rc->calculation->parsed_as:"NONE",
- (rc->warning)?rc->warning->parsed_as:"NONE",
- (rc->critical)?rc->critical->parsed_as:"NONE",
- rc->source,
- rc->delay_up_duration,
- rc->delay_down_duration,
- rc->delay_max_duration,
- rc->delay_multiplier
- );
-
- rrdcalc_create_part2(host, rc);
- return rc;
-}
-
-void rrdcalc_free(RRDHOST *host, RRDCALC *rc) {
- if(!rc) return;
-
- debug(D_HEALTH, "Health removing alarm '%s.%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname);
-
- // unlink it from RRDSET
- if(rc->rrdset) rrdsetcalc_unlink(rc);
-
- // unlink it from RRDHOST
- if(unlikely(rc == host->alarms))
- host->alarms = rc->next;
-
- else if(likely(host->alarms)) {
- RRDCALC *t, *last = host->alarms;
- for(t = last->next; t && t != rc; last = t, t = t->next) ;
- if(last->next == rc)
- last->next = rc->next;
- else
- error("Cannot unlink alarm '%s.%s' from host '%s': not found", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname);
- }
- else
- error("Cannot unlink unlink '%s.%s' from host '%s': This host does not have any calculations", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname);
-
- expression_free(rc->calculation);
- expression_free(rc->warning);
- expression_free(rc->critical);
-
- freez(rc->name);
- freez(rc->chart);
- freez(rc->family);
- freez(rc->dimensions);
- freez(rc->exec);
- freez(rc->recipient);
- freez(rc->source);
- freez(rc->units);
- freez(rc->info);
- freez(rc);
-}
-
-// ----------------------------------------------------------------------------
-// RRDCALCTEMPLATE management
-
-void rrdcalctemplate_link_matching(RRDSET *st) {
- RRDCALCTEMPLATE *rt;
-
- for(rt = st->rrdhost->templates; rt ; rt = rt->next) {
- if(rt->hash_context == st->hash_context && !strcmp(rt->context, st->context)
- && (!rt->family_pattern || simple_pattern_matches(rt->family_pattern, st->family))) {
- RRDCALC *rc = rrdcalc_create(st->rrdhost, rt, st->id);
- if(unlikely(!rc))
- error("Health tried to create alarm from template '%s', but it failed", rt->name);
-
-#ifdef NETDATA_INTERNAL_CHECKS
- else if(rc->rrdset != st)
- error("Health alarm '%s.%s' should be linked to chart '%s', but it is not", rc->chart?rc->chart:"NOCHART", rc->name, st->id);
-#endif
- }
- }
-}
-
-inline void rrdcalctemplate_free(RRDHOST *host, RRDCALCTEMPLATE *rt) {
- debug(D_HEALTH, "Health removing template '%s' of host '%s'", rt->name, host->hostname);
-
- if(host->templates) {
- if(host->templates == rt) {
- host->templates = rt->next;
- }
- else {
- RRDCALCTEMPLATE *t, *last = host->templates;
- for (t = last->next; t && t != rt; last = t, t = t->next ) ;
- if(last && last->next == rt) {
- last->next = rt->next;
- rt->next = NULL;
- }
- else
- error("Cannot find RRDCALCTEMPLATE '%s' linked in host '%s'", rt->name, host->hostname);
- }
- }
-
- expression_free(rt->calculation);
- expression_free(rt->warning);
- expression_free(rt->critical);
-
- freez(rt->family_match);
- simple_pattern_free(rt->family_pattern);
-
- freez(rt->name);
- freez(rt->exec);
- freez(rt->recipient);
- freez(rt->context);
- freez(rt->source);
- freez(rt->units);
- freez(rt->info);
- freez(rt->dimensions);
- freez(rt);
-}
-
// ----------------------------------------------------------------------------
// health initialization
// ----------------------------------------------------------------------------
// re-load health configuration
-inline void health_free_host_nolock(RRDHOST *host) {
+void health_reload_host(RRDHOST *host) {
+ char *path = health_config_dir();
+
+ // free all running alarms
+ rrdhost_wrlock(host);
+
while(host->templates)
rrdcalctemplate_free(host, host->templates);
while(host->alarms)
rrdcalc_free(host, host->alarms);
-}
-void health_reload_host(RRDHOST *host) {
- char *path = health_config_dir();
-
- // free all running alarms
- rrdhost_wrlock(host);
- health_free_host_nolock(host);
rrdhost_unlock(host);
// invalidate all previous entries in the alarm log
ALARM_ENTRY *t = ae->next;
- freez(ae->name);
- freez(ae->chart);
- freez(ae->family);
- freez(ae->exec);
- freez(ae->recipient);
- freez(ae->source);
- freez(ae->units);
- freez(ae->info);
- freez(ae->old_value_string);
- freez(ae->new_value_string);
- freez(ae);
+ health_alarm_log_free_one_nochecks_nounlink(ae);
ae = t;
host->health_log.count--;
extern void health_readdir(RRDHOST *host, const char *path);
extern char *health_config_dir(void);
-extern void health_free_host_nolock(RRDHOST *host);
extern void health_reload_host(RRDHOST *host);
+extern void health_alarm_log_free(RRDHOST *host);
+
+extern void rrdcalc_free(RRDHOST *host, RRDCALC *rc);
+extern void rrdcalctemplate_free(RRDHOST *host, RRDCALCTEMPLATE *rt);
#ifdef NETDATA_HEALTH_INTERNALS
+#define RRDVAR_MAX_LENGTH 1024
+
extern int rrdcalc_exists(RRDHOST *host, const char *chart, const char *name, uint32_t hash_chart, uint32_t hash_name);
extern uint32_t rrdcalc_get_unique_id(RRDHOST *host, const char *chart, const char *name, uint32_t *next_event_id);
-extern void rrdcalc_create_part2(RRDHOST *host, RRDCALC *rc);
-extern void rrdcalc_free(RRDHOST *host, RRDCALC *rc);
-extern void rrdcalctemplate_free(RRDHOST *host, RRDCALCTEMPLATE *rt);
extern int rrdvar_fix_name(char *variable);
-#endif
+
+extern RRDCALC *rrdcalc_create(RRDHOST *host, RRDCALCTEMPLATE *rt, const char *chart);
+extern void rrdcalc_create_part2(RRDHOST *host, RRDCALC *rc);
+
+extern RRDVAR *rrdvar_create_and_index(const char *scope, avl_tree_lock *tree, const char *name, int type, void *value);
+extern void rrdvar_free(RRDHOST *host, avl_tree_lock *tree, RRDVAR *rv);
+
+extern void health_alarm_log_free_one_nochecks_nounlink(ALARM_ENTRY *ae);
+
+#endif // NETDATA_HEALTH_INTERNALS
#endif //NETDATA_HEALTH_H
health_alarm_log_save(host, ae);
}
+inline void health_alarm_log_free_one_nochecks_nounlink(ALARM_ENTRY *ae) {
+ freez(ae->name);
+ freez(ae->chart);
+ freez(ae->family);
+ freez(ae->exec);
+ freez(ae->recipient);
+ freez(ae->source);
+ freez(ae->units);
+ freez(ae->info);
+ freez(ae->old_value_string);
+ freez(ae->new_value_string);
+ freez(ae);
+}
+
+inline void health_alarm_log_free(RRDHOST *host) {
+ rrdhost_check_wrlock(host);
+
+ pthread_rwlock_wrlock(&host->health_log.alarm_log_rwlock);
+
+ ALARM_ENTRY *ae;
+ while((ae = host->health_log.alarms)) {
+ host->health_log.alarms = ae->next;
+ health_alarm_log_free_one_nochecks_nounlink(ae);
+ }
+
+ pthread_rwlock_unlock(&host->health_log.alarm_log_rwlock);
+}
for(counter = 0; 1 ;counter++) {
usec_t usec = 0, susec = 0;
+ if(netdata_exit) break;
+
while(susec < (localhost->rrd_update_every * USEC_PER_SEC)) {
now_monotonic_timeval(&before);
#ifdef NETDATA_INTERNAL_CHECKS
#define rrdhost_check_rdlock(host) rrdhost_check_rdlock_int(host, __FILE__, __FUNCTION__, __LINE__)
#define rrdhost_check_wrlock(host) rrdhost_check_wrlock_int(host, __FILE__, __FUNCTION__, __LINE__)
+#define rrd_check_rdlock() rrd_check_rdlock_int(__FILE__, __FUNCTION__, __LINE__)
+#define rrd_check_wrlock() rrd_check_wrlock_int(__FILE__, __FUNCTION__, __LINE__)
#else
#define rrdhost_check_rdlock(host) (void)0
#define rrdhost_check_wrlock(host) (void)0
+#define rrd_check_rdlock() (void)0
+#define rrd_check_wrlock() (void)0
#endif
extern void rrdhost_check_wrlock_int(RRDHOST *host, const char *file, const char *function, const unsigned long line);
extern void rrdhost_check_rdlock_int(RRDHOST *host, const char *file, const char *function, const unsigned long line);
+// ----------------------------------------------------------------------------
+// global lock for all RRDHOSTs
+
+extern pthread_rwlock_t rrd_rwlock;
+#define rrd_rdlock() pthread_rwlock_rdlock(&rrd_rwlock)
+#define rrd_wrlock() pthread_rwlock_wrlock(&rrd_rwlock)
+#define rrd_unlock() pthread_rwlock_unlock(&rrd_rwlock)
+
+
// ----------------------------------------------------------------------------
// RRDSET functions
--- /dev/null
+#define NETDATA_HEALTH_INTERNALS
+#include "common.h"
+
+// ----------------------------------------------------------------------------
+// RRDCALC management
+
+inline const char *rrdcalc_status2string(int status) {
+ switch(status) {
+ case RRDCALC_STATUS_REMOVED:
+ return "REMOVED";
+
+ case RRDCALC_STATUS_UNDEFINED:
+ return "UNDEFINED";
+
+ case RRDCALC_STATUS_UNINITIALIZED:
+ return "UNINITIALIZED";
+
+ case RRDCALC_STATUS_CLEAR:
+ return "CLEAR";
+
+ case RRDCALC_STATUS_RAISED:
+ return "RAISED";
+
+ case RRDCALC_STATUS_WARNING:
+ return "WARNING";
+
+ case RRDCALC_STATUS_CRITICAL:
+ return "CRITICAL";
+
+ default:
+ error("Unknown alarm status %d", status);
+ return "UNKNOWN";
+ }
+}
+
+static void rrdsetcalc_link(RRDSET *st, RRDCALC *rc) {
+ debug(D_HEALTH, "Health linking alarm '%s.%s' to chart '%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, st->id, st->rrdhost->hostname);
+
+ rc->last_status_change = now_realtime_sec();
+ rc->rrdset = st;
+
+ rc->rrdset_next = st->alarms;
+ rc->rrdset_prev = NULL;
+
+ if(rc->rrdset_next)
+ rc->rrdset_next->rrdset_prev = rc;
+
+ st->alarms = rc;
+
+ if(rc->update_every < rc->rrdset->update_every) {
+ error("Health alarm '%s.%s' has update every %d, less than chart update every %d. Setting alarm update frequency to %d.", rc->rrdset->id, rc->name, rc->update_every, rc->rrdset->update_every, rc->rrdset->update_every);
+ rc->update_every = rc->rrdset->update_every;
+ }
+
+ if(!isnan(rc->green) && isnan(st->green)) {
+ debug(D_HEALTH, "Health alarm '%s.%s' green threshold set from %Lf to %Lf.", rc->rrdset->id, rc->name, rc->rrdset->green, rc->green);
+ st->green = rc->green;
+ }
+
+ if(!isnan(rc->red) && isnan(st->red)) {
+ debug(D_HEALTH, "Health alarm '%s.%s' red threshold set from %Lf to %Lf.", rc->rrdset->id, rc->name, rc->rrdset->red, rc->red);
+ st->red = rc->red;
+ }
+
+ rc->local = rrdvar_create_and_index("local", &st->variables_root_index, rc->name, RRDVAR_TYPE_CALCULATED, &rc->value);
+ rc->family = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rc->name, RRDVAR_TYPE_CALCULATED, &rc->value);
+
+ char fullname[RRDVAR_MAX_LENGTH + 1];
+ snprintfz(fullname, RRDVAR_MAX_LENGTH, "%s.%s", st->id, rc->name);
+ rc->hostid = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, fullname, RRDVAR_TYPE_CALCULATED, &rc->value);
+
+ snprintfz(fullname, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rc->name);
+ rc->hostname = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, fullname, RRDVAR_TYPE_CALCULATED, &rc->value);
+
+ if(!rc->units) rc->units = strdupz(st->units);
+
+ {
+ time_t now = now_realtime_sec();
+ health_alarm_log(
+ st->rrdhost,
+ rc->id,
+ rc->next_event_id++,
+ now,
+ rc->name,
+ rc->rrdset->id,
+ rc->rrdset->family,
+ rc->exec,
+ rc->recipient,
+ now - rc->last_status_change,
+ rc->old_value,
+ rc->value,
+ rc->status,
+ RRDCALC_STATUS_UNINITIALIZED,
+ rc->source,
+ rc->units,
+ rc->info,
+ 0,
+ 0
+ );
+ }
+}
+
+static inline int rrdcalc_is_matching_this_rrdset(RRDCALC *rc, RRDSET *st) {
+ if( (rc->hash_chart == st->hash && !strcmp(rc->chart, st->id)) ||
+ (rc->hash_chart == st->hash_name && !strcmp(rc->chart, st->name)))
+ return 1;
+
+ return 0;
+}
+
+// this has to be called while the RRDHOST is locked
+inline void rrdsetcalc_link_matching(RRDSET *st) {
+ // debug(D_HEALTH, "find matching alarms for chart '%s'", st->id);
+
+ RRDCALC *rc;
+ for(rc = st->rrdhost->alarms; rc ; rc = rc->next) {
+ if(unlikely(rc->rrdset))
+ continue;
+
+ if(unlikely(rrdcalc_is_matching_this_rrdset(rc, st)))
+ rrdsetcalc_link(st, rc);
+ }
+}
+
+// this has to be called while the RRDHOST is locked
+inline void rrdsetcalc_unlink(RRDCALC *rc) {
+ RRDSET *st = rc->rrdset;
+
+ if(!st) {
+ debug(D_HEALTH, "Requested to unlink RRDCALC '%s.%s' which is not linked to any RRDSET", rc->chart?rc->chart:"NOCHART", rc->name);
+ error("Requested to unlink RRDCALC '%s.%s' which is not linked to any RRDSET", rc->chart?rc->chart:"NOCHART", rc->name);
+ return;
+ }
+
+ {
+ time_t now = now_realtime_sec();
+ health_alarm_log(
+ st->rrdhost,
+ rc->id,
+ rc->next_event_id++,
+ now,
+ rc->name,
+ rc->rrdset->id,
+ rc->rrdset->family,
+ rc->exec,
+ rc->recipient,
+ now - rc->last_status_change,
+ rc->old_value,
+ rc->value,
+ rc->status,
+ RRDCALC_STATUS_REMOVED,
+ rc->source,
+ rc->units,
+ rc->info,
+ 0,
+ 0
+ );
+ }
+
+ RRDHOST *host = st->rrdhost;
+
+ debug(D_HEALTH, "Health unlinking alarm '%s.%s' from chart '%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, st->id, host->hostname);
+
+ // unlink it
+ if(rc->rrdset_prev)
+ rc->rrdset_prev->rrdset_next = rc->rrdset_next;
+
+ if(rc->rrdset_next)
+ rc->rrdset_next->rrdset_prev = rc->rrdset_prev;
+
+ if(st->alarms == rc)
+ st->alarms = rc->rrdset_next;
+
+ rc->rrdset_prev = rc->rrdset_next = NULL;
+
+ rrdvar_free(st->rrdhost, &st->variables_root_index, rc->local);
+ rc->local = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rc->family);
+ rc->family = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rc->hostid);
+ rc->hostid = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rc->hostname);
+ rc->hostname = NULL;
+
+ rc->rrdset = NULL;
+
+ // RRDCALC will remain in RRDHOST
+ // so that if the matching chart is found in the future
+ // it will be applied automatically
+}
+
+RRDCALC *rrdcalc_find(RRDSET *st, const char *name) {
+ RRDCALC *rc;
+ uint32_t hash = simple_hash(name);
+
+ for( rc = st->alarms; rc ; rc = rc->rrdset_next ) {
+ if(unlikely(rc->hash == hash && !strcmp(rc->name, name)))
+ return rc;
+ }
+
+ return NULL;
+}
+
+inline int rrdcalc_exists(RRDHOST *host, const char *chart, const char *name, uint32_t hash_chart, uint32_t hash_name) {
+ RRDCALC *rc;
+
+ if(unlikely(!chart)) {
+ error("attempt to find RRDCALC '%s' without giving a chart name", name);
+ return 1;
+ }
+
+ if(unlikely(!hash_chart)) hash_chart = simple_hash(chart);
+ if(unlikely(!hash_name)) hash_name = simple_hash(name);
+
+ // make sure it does not already exist
+ for(rc = host->alarms; rc ; rc = rc->next) {
+ if (unlikely(rc->chart && rc->hash == hash_name && rc->hash_chart == hash_chart && !strcmp(name, rc->name) && !strcmp(chart, rc->chart))) {
+ debug(D_HEALTH, "Health alarm '%s.%s' already exists in host '%s'.", chart, name, host->hostname);
+ error("Health alarm '%s.%s' already exists in host '%s'.", chart, name, host->hostname);
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+inline uint32_t rrdcalc_get_unique_id(RRDHOST *host, const char *chart, const char *name, uint32_t *next_event_id) {
+ if(chart && name) {
+ uint32_t hash_chart = simple_hash(chart);
+ uint32_t hash_name = simple_hash(name);
+
+ // re-use old IDs, by looking them up in the alarm log
+ ALARM_ENTRY *ae;
+ for(ae = host->health_log.alarms; ae ;ae = ae->next) {
+ if(unlikely(ae->hash_name == hash_name && ae->hash_chart == hash_chart && !strcmp(name, ae->name) && !strcmp(chart, ae->chart))) {
+ if(next_event_id) *next_event_id = ae->alarm_event_id + 1;
+ return ae->alarm_id;
+ }
+ }
+ }
+
+ return host->health_log.next_alarm_id++;
+}
+
+inline void rrdcalc_create_part2(RRDHOST *host, RRDCALC *rc) {
+ rrdhost_check_rdlock(host);
+
+ if(rc->calculation) {
+ rc->calculation->status = &rc->status;
+ rc->calculation->this = &rc->value;
+ rc->calculation->after = &rc->db_after;
+ rc->calculation->before = &rc->db_before;
+ rc->calculation->rrdcalc = rc;
+ }
+
+ if(rc->warning) {
+ rc->warning->status = &rc->status;
+ rc->warning->this = &rc->value;
+ rc->warning->after = &rc->db_after;
+ rc->warning->before = &rc->db_before;
+ rc->warning->rrdcalc = rc;
+ }
+
+ if(rc->critical) {
+ rc->critical->status = &rc->status;
+ rc->critical->this = &rc->value;
+ rc->critical->after = &rc->db_after;
+ rc->critical->before = &rc->db_before;
+ rc->critical->rrdcalc = rc;
+ }
+
+ // link it to the host
+ if(likely(host->alarms)) {
+ // append it
+ RRDCALC *t;
+ for(t = host->alarms; t && t->next ; t = t->next) ;
+ t->next = rc;
+ }
+ else {
+ host->alarms = rc;
+ }
+
+ // link it to its chart
+ RRDSET *st;
+ for(st = host->rrdset_root; st ; st = st->next) {
+ if(rrdcalc_is_matching_this_rrdset(rc, st)) {
+ rrdsetcalc_link(st, rc);
+ break;
+ }
+ }
+}
+
+inline RRDCALC *rrdcalc_create(RRDHOST *host, RRDCALCTEMPLATE *rt, const char *chart) {
+
+ debug(D_HEALTH, "Health creating dynamic alarm (from template) '%s.%s'", chart, rt->name);
+
+ if(rrdcalc_exists(host, chart, rt->name, 0, 0))
+ return NULL;
+
+ RRDCALC *rc = callocz(1, sizeof(RRDCALC));
+ rc->next_event_id = 1;
+ rc->id = rrdcalc_get_unique_id(host, chart, rt->name, &rc->next_event_id);
+ rc->name = strdupz(rt->name);
+ rc->hash = simple_hash(rc->name);
+ rc->chart = strdupz(chart);
+ rc->hash_chart = simple_hash(rc->chart);
+
+ if(rt->dimensions) rc->dimensions = strdupz(rt->dimensions);
+
+ rc->green = rt->green;
+ rc->red = rt->red;
+ rc->value = NAN;
+ rc->old_value = NAN;
+
+ rc->delay_up_duration = rt->delay_up_duration;
+ rc->delay_down_duration = rt->delay_down_duration;
+ rc->delay_max_duration = rt->delay_max_duration;
+ rc->delay_multiplier = rt->delay_multiplier;
+
+ rc->group = rt->group;
+ rc->after = rt->after;
+ rc->before = rt->before;
+ rc->update_every = rt->update_every;
+ rc->options = rt->options;
+
+ if(rt->exec) rc->exec = strdupz(rt->exec);
+ if(rt->recipient) rc->recipient = strdupz(rt->recipient);
+ if(rt->source) rc->source = strdupz(rt->source);
+ if(rt->units) rc->units = strdupz(rt->units);
+ if(rt->info) rc->info = strdupz(rt->info);
+
+ if(rt->calculation) {
+ rc->calculation = expression_parse(rt->calculation->source, NULL, NULL);
+ if(!rc->calculation)
+ error("Health alarm '%s.%s': failed to parse calculation expression '%s'", chart, rt->name, rt->calculation->source);
+ }
+ if(rt->warning) {
+ rc->warning = expression_parse(rt->warning->source, NULL, NULL);
+ if(!rc->warning)
+ error("Health alarm '%s.%s': failed to re-parse warning expression '%s'", chart, rt->name, rt->warning->source);
+ }
+ if(rt->critical) {
+ rc->critical = expression_parse(rt->critical->source, NULL, NULL);
+ if(!rc->critical)
+ error("Health alarm '%s.%s': failed to re-parse critical expression '%s'", chart, rt->name, rt->critical->source);
+ }
+
+ debug(D_HEALTH, "Health runtime added alarm '%s.%s': exec '%s', recipient '%s', green %Lf, red %Lf, lookup: group %d, after %d, before %d, options %u, dimensions '%s', update every %d, calculation '%s', warning '%s', critical '%s', source '%s', delay up %d, delay down %d, delay max %d, delay_multiplier %f",
+ (rc->chart)?rc->chart:"NOCHART",
+ rc->name,
+ (rc->exec)?rc->exec:"DEFAULT",
+ (rc->recipient)?rc->recipient:"DEFAULT",
+ rc->green,
+ rc->red,
+ rc->group,
+ rc->after,
+ rc->before,
+ rc->options,
+ (rc->dimensions)?rc->dimensions:"NONE",
+ rc->update_every,
+ (rc->calculation)?rc->calculation->parsed_as:"NONE",
+ (rc->warning)?rc->warning->parsed_as:"NONE",
+ (rc->critical)?rc->critical->parsed_as:"NONE",
+ rc->source,
+ rc->delay_up_duration,
+ rc->delay_down_duration,
+ rc->delay_max_duration,
+ rc->delay_multiplier
+ );
+
+ rrdcalc_create_part2(host, rc);
+ return rc;
+}
+
+void rrdcalc_free(RRDHOST *host, RRDCALC *rc) {
+ if(!rc) return;
+
+ debug(D_HEALTH, "Health removing alarm '%s.%s' of host '%s'", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname);
+
+ // unlink it from RRDSET
+ if(rc->rrdset) rrdsetcalc_unlink(rc);
+
+ // unlink it from RRDHOST
+ if(unlikely(rc == host->alarms))
+ host->alarms = rc->next;
+
+ else {
+ RRDCALC *t;
+ for(t = host->alarms; t && t->next != rc; t = t->next) ;
+ if(t) {
+ t->next = rc->next;
+ rc->next = NULL;
+ }
+ else
+ error("Cannot unlink alarm '%s.%s' from host '%s': not found", rc->chart?rc->chart:"NOCHART", rc->name, host->hostname);
+ }
+
+ expression_free(rc->calculation);
+ expression_free(rc->warning);
+ expression_free(rc->critical);
+
+ freez(rc->name);
+ freez(rc->chart);
+ freez(rc->family);
+ freez(rc->dimensions);
+ freez(rc->exec);
+ freez(rc->recipient);
+ freez(rc->source);
+ freez(rc->units);
+ freez(rc->info);
+ freez(rc);
+}
--- /dev/null
+#define NETDATA_HEALTH_INTERNALS
+#include "common.h"
+
+// ----------------------------------------------------------------------------
+// RRDCALCTEMPLATE management
+
+void rrdcalctemplate_link_matching(RRDSET *st) {
+ RRDCALCTEMPLATE *rt;
+
+ for(rt = st->rrdhost->templates; rt ; rt = rt->next) {
+ if(rt->hash_context == st->hash_context && !strcmp(rt->context, st->context)
+ && (!rt->family_pattern || simple_pattern_matches(rt->family_pattern, st->family))) {
+ RRDCALC *rc = rrdcalc_create(st->rrdhost, rt, st->id);
+ if(unlikely(!rc))
+ error("Health tried to create alarm from template '%s', but it failed", rt->name);
+
+#ifdef NETDATA_INTERNAL_CHECKS
+ else if(rc->rrdset != st)
+ error("Health alarm '%s.%s' should be linked to chart '%s', but it is not", rc->chart?rc->chart:"NOCHART", rc->name, st->id);
+#endif
+ }
+ }
+}
+
+inline void rrdcalctemplate_free(RRDHOST *host, RRDCALCTEMPLATE *rt) {
+ debug(D_HEALTH, "Health removing template '%s' of host '%s'", rt->name, host->hostname);
+
+ if(host->templates == rt) {
+ host->templates = rt->next;
+ }
+ else {
+ RRDCALCTEMPLATE *t;
+ for (t = host->templates; t && t->next != rt; t = t->next ) ;
+ if(t) {
+ t->next = rt->next;
+ rt->next = NULL;
+ }
+ else
+ error("Cannot find RRDCALCTEMPLATE '%s' linked in host '%s'", rt->name, host->hostname);
+ }
+
+ expression_free(rt->calculation);
+ expression_free(rt->warning);
+ expression_free(rt->critical);
+
+ freez(rt->family_match);
+ simple_pattern_free(rt->family_pattern);
+
+ freez(rt->name);
+ freez(rt->exec);
+ freez(rt->recipient);
+ freez(rt->context);
+ freez(rt->source);
+ freez(rt->units);
+ freez(rt->info);
+ freez(rt->dimensions);
+ freez(rt);
+}
+
+
--- /dev/null
+#define NETDATA_HEALTH_INTERNALS
+#include "common.h"
+
+// ----------------------------------------------------------------------------
+// RRDDIMVAR management
+// DIMENSION VARIABLES
+
+#define RRDDIMVAR_ID_MAX 1024
+
+static inline void rrddimvar_free_variables(RRDDIMVAR *rs) {
+ RRDDIM *rd = rs->rrddim;
+ RRDSET *st = rd->rrdset;
+
+ // CHART VARIABLES FOR THIS DIMENSION
+
+ rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local_id);
+ rs->var_local_id = NULL;
+
+ rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local_name);
+ rs->var_local_name = NULL;
+
+ // FAMILY VARIABLES FOR THIS DIMENSION
+
+ rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_id);
+ rs->var_family_id = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_name);
+ rs->var_family_name = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_contextid);
+ rs->var_family_contextid = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_contextname);
+ rs->var_family_contextname = NULL;
+
+ // HOST VARIABLES FOR THIS DIMENSION
+
+ rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartidid);
+ rs->var_host_chartidid = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartidname);
+ rs->var_host_chartidname = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartnameid);
+ rs->var_host_chartnameid = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_chartnamename);
+ rs->var_host_chartnamename = NULL;
+
+ // KEYS
+
+ freez(rs->key_id);
+ rs->key_id = NULL;
+
+ freez(rs->key_name);
+ rs->key_name = NULL;
+
+ freez(rs->key_fullidid);
+ rs->key_fullidid = NULL;
+
+ freez(rs->key_fullidname);
+ rs->key_fullidname = NULL;
+
+ freez(rs->key_contextid);
+ rs->key_contextid = NULL;
+
+ freez(rs->key_contextname);
+ rs->key_contextname = NULL;
+
+ freez(rs->key_fullnameid);
+ rs->key_fullnameid = NULL;
+
+ freez(rs->key_fullnamename);
+ rs->key_fullnamename = NULL;
+}
+
+static inline void rrddimvar_create_variables(RRDDIMVAR *rs) {
+ rrddimvar_free_variables(rs);
+
+ RRDDIM *rd = rs->rrddim;
+ RRDSET *st = rd->rrdset;
+
+ char buffer[RRDDIMVAR_ID_MAX + 1];
+
+ // KEYS
+
+ snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s%s%s", rs->prefix, rd->id, rs->suffix);
+ rs->key_id = strdupz(buffer);
+
+ snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s%s%s", rs->prefix, rd->name, rs->suffix);
+ rs->key_name = strdupz(buffer);
+
+ snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->id, rs->key_id);
+ rs->key_fullidid = strdupz(buffer);
+
+ snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->id, rs->key_name);
+ rs->key_fullidname = strdupz(buffer);
+
+ snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->context, rs->key_id);
+ rs->key_contextid = strdupz(buffer);
+
+ snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->context, rs->key_name);
+ rs->key_contextname = strdupz(buffer);
+
+ snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->name, rs->key_id);
+ rs->key_fullnameid = strdupz(buffer);
+
+ snprintfz(buffer, RRDDIMVAR_ID_MAX, "%s.%s", st->name, rs->key_name);
+ rs->key_fullnamename = strdupz(buffer);
+
+ // CHART VARIABLES FOR THIS DIMENSION
+ // -----------------------------------
+ //
+ // dimensions are available as:
+ // - $id
+ // - $name
+
+ rs->var_local_id = rrdvar_create_and_index("local", &st->variables_root_index, rs->key_id, rs->type, rs->value);
+ rs->var_local_name = rrdvar_create_and_index("local", &st->variables_root_index, rs->key_name, rs->type, rs->value);
+
+ // FAMILY VARIABLES FOR THIS DIMENSION
+ // -----------------------------------
+ //
+ // dimensions are available as:
+ // - $id (only the first, when multiple overlap)
+ // - $name (only the first, when multiple overlap)
+ // - $chart-context.id
+ // - $chart-context.name
+
+ rs->var_family_id = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_id, rs->type, rs->value);
+ rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_name, rs->type, rs->value);
+ rs->var_family_contextid = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_contextid, rs->type, rs->value);
+ rs->var_family_contextname = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_contextname, rs->type, rs->value);
+
+ // HOST VARIABLES FOR THIS DIMENSION
+ // -----------------------------------
+ //
+ // dimensions are available as:
+ // - $chart-id.id
+ // - $chart-id.name
+ // - $chart-name.id
+ // - $chart-name.name
+
+ rs->var_host_chartidid = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullidid, rs->type, rs->value);
+ rs->var_host_chartidname = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullidname, rs->type, rs->value);
+ rs->var_host_chartnameid = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullnameid, rs->type, rs->value);
+ rs->var_host_chartnamename = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullnamename, rs->type, rs->value);
+}
+
+RRDDIMVAR *rrddimvar_create(RRDDIM *rd, int type, const char *prefix, const char *suffix, void *value, uint32_t options) {
+ RRDSET *st = rd->rrdset;
+
+ debug(D_VARIABLES, "RRDDIMSET create for chart id '%s' name '%s', dimension id '%s', name '%s%s%s'", st->id, st->name, rd->id, (prefix)?prefix:"", rd->name, (suffix)?suffix:"");
+
+ if(!prefix) prefix = "";
+ if(!suffix) suffix = "";
+
+ RRDDIMVAR *rs = (RRDDIMVAR *)callocz(1, sizeof(RRDDIMVAR));
+
+ rs->prefix = strdupz(prefix);
+ rs->suffix = strdupz(suffix);
+
+ rs->type = type;
+ rs->value = value;
+ rs->options = options;
+ rs->rrddim = rd;
+
+ rs->next = rd->variables;
+ rd->variables = rs;
+
+ rrddimvar_create_variables(rs);
+
+ return rs;
+}
+
+void rrddimvar_rename_all(RRDDIM *rd) {
+ RRDSET *st = rd->rrdset;
+ debug(D_VARIABLES, "RRDDIMSET rename for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name);
+
+ RRDDIMVAR *rs, *next = rd->variables;
+ while((rs = next)) {
+ next = rs->next;
+ rrddimvar_create_variables(rs);
+ }
+}
+
+void rrddimvar_free(RRDDIMVAR *rs) {
+ RRDDIM *rd = rs->rrddim;
+ RRDSET *st = rd->rrdset;
+ debug(D_VARIABLES, "RRDDIMSET free for chart id '%s' name '%s', dimension id '%s', name '%s', prefix='%s', suffix='%s'", st->id, st->name, rd->id, rd->name, rs->prefix, rs->suffix);
+
+ rrddimvar_free_variables(rs);
+
+ if(rd->variables == rs) {
+ debug(D_VARIABLES, "RRDDIMSET removing first entry for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name);
+ rd->variables = rs->next;
+ }
+ else {
+ debug(D_VARIABLES, "RRDDIMSET removing non-first entry for chart id '%s' name '%s', dimension id '%s', name '%s'", st->id, st->name, rd->id, rd->name);
+ RRDDIMVAR *t;
+ for (t = rd->variables; t && t->next != rs; t = t->next) ;
+ if(!t) error("RRDDIMVAR '%s' not found in dimension '%s/%s' variables linked list", rs->key_name, st->id, rd->id);
+ else t->next = rs->next;
+ }
+
+ freez(rs->prefix);
+ freez(rs->suffix);
+ freez(rs);
+}
+
RRDHOST *localhost = NULL;
+pthread_rwlock_t rrd_rwlock = PTHREAD_RWLOCK_INITIALIZER;
+
+
// ----------------------------------------------------------------------------
// RRDHOST index
host->hash_machine_guid = simple_hash(host->machine_guid);
}
+
// ----------------------------------------------------------------------------
// RRDHOST - add a host
avl_init_lock(&(host->rrdfamily_root_index), rrdfamily_compare);
avl_init_lock(&(host->variables_root_index), rrdvar_compare);
-
// ------------------------------------------------------------------------
// initialize health variables
// ------------------------------------------------------------------------
- // add it to the index
+ // link it and add it to the index
+
+ rrd_wrlock();
+
+ if(localhost) {
+ host->next = localhost->next;
+ localhost->next = host;
+ }
if(rrdhost_index_add(host) != host)
fatal("Cannot add host '%s' to index. It already exists.", hostname);
+ rrd_unlock();
+
debug(D_RRDHOST, "Added host '%s' with guid '%s'", host->hostname, host->machine_guid);
return host;
}
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);
}
+void rrd_check_rdlock_int(const char *file, const char *function, const unsigned long line) {
+ debug(D_RRDHOST, "Checking read lock on all RRDs");
+
+ int ret = pthread_rwlock_trywrlock(&rrd_rwlock);
+ if(ret == 0)
+ fatal("RRDs should be read-locked, but it are not, at function %s() at line %lu of file '%s'", function, line, file);
+}
+
+void rrd_check_wrlock_int(const char *file, const char *function, const unsigned long line) {
+ debug(D_RRDHOST, "Checking write lock on all RRDs");
+
+ int ret = pthread_rwlock_tryrdlock(&rrd_rwlock);
+ if(ret == 0)
+ fatal("RRDs should be write-locked, but it are not, at function %s() at line %lu of file '%s'", function, line, file);
+}
+
// ----------------------------------------------------------------------------
// RRDHOST - free
info("Freeing all memory for host '%s'...", host->hostname);
- rrdhost_wrlock(host);
+ rrd_check_wrlock(); // make sure the RRDs are write locked
+ rrdhost_wrlock(host); // lock this RRDHOST
- RRDSET *st;
- for(st = host->rrdset_root; st ;) {
- RRDSET *next = st->next;
+ // ------------------------------------------------------------------------
+ // release its children resources
- rrdset_free(st);
+ while(host->rrdset_root) rrdset_free(host->rrdset_root);
- st = next;
- }
- host->rrdset_root = NULL;
+ while(host->alarms) rrdcalc_free(host, host->alarms);
+ while(host->templates) rrdcalctemplate_free(host, host->templates);
+ health_alarm_log_free(host);
+
+
+ // ------------------------------------------------------------------------
+ // remove it from the indexes
if(rrdhost_index_del(host) != host)
error("RRDHOST '%s' removed from index, deleted the wrong entry.", host->hostname);
+
+ // ------------------------------------------------------------------------
+ // unlink it from the host
+
+ if(host == localhost) {
+ localhost = host->next;
+ }
+ else {
+ // find the previous one
+ RRDHOST *h;
+ for(h = localhost; h && h->next != host ; h = h->next) ;
+
+ // bypass it
+ if(h) h->next = host->next;
+ else error("Request to free RRDHOST '%s': cannot find it", host->hostname);
+ }
+
+ // ------------------------------------------------------------------------
+ // free it
+
freez(host->cache_dir);
freez(host->varlib_dir);
freez(host->health_default_exec);
}
void rrdhost_free_all(void) {
- RRDHOST *host = localhost;
-
- // FIXME: lock all hosts
-
- while(host) {
- RRDHOST *next = host = host->next;
- rrdhost_free(host);
- host = next;
- }
-
- localhost = NULL;
-
- // FIXME: unlock all hosts
+ rrd_wrlock();
+ while(localhost) rrdhost_free(localhost);
+ rrd_unlock();
}
// ----------------------------------------------------------------------------
void rrdhost_save_all(void) {
info("Saving database...");
+ rrd_rdlock();
+
RRDHOST *host;
for(host = localhost; host ; host = host->next)
rrdhost_save(host);
+
+ rrd_unlock();
}
// RRDSET - free a chart
void rrdset_free(RRDSET *st) {
- rrdset_wrlock(st);
+ if(unlikely(!st)) return;
+
+ rrdhost_check_wrlock(st->rrdhost); // make sure we have a write lock on the host
+ rrdset_wrlock(st); // lock this RRDSET
+
+ // ------------------------------------------------------------------------
+ // 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(st->rrdhost, st->rrdfamily);
+
+ // ------------------------------------------------------------------------
+ // remove it from the indexes
+
if(unlikely(rrdset_index_del(st->rrdhost, st) != st))
error("RRDSET: INTERNAL ERROR: attempt to remove from index chart '%s', removed a different chart.", st->id);
rrdset_index_del_name(st->rrdhost, st);
- st->rrdfamily->use_count--;
- if(!st->rrdfamily->use_count)
- rrdfamily_free(st->rrdhost, st->rrdfamily);
+ // ------------------------------------------------------------------------
+ // unlink it from the host
+
+ if(st == st->rrdhost->rrdset_root) {
+ st->rrdhost->rrdset_root = st->next;
+ }
+ else {
+ // find the previous one
+ RRDSET *s;
+ for(s = st->rrdhost->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, st->rrdhost->hostname);
+ }
rrdset_unlock(st);
- // free directly allocated memory
+ // ------------------------------------------------------------------------
+ // free it
+
+ // free directly allocated members
freez(st->config_section);
if(st->rrd_memory_mode == RRD_MEMORY_MODE_SAVE || st->rrd_memory_mode == RRD_MEMORY_MODE_MAP) {
--- /dev/null
+#define NETDATA_HEALTH_INTERNALS
+#include "common.h"
+
+// ----------------------------------------------------------------------------
+// RRDSETVAR management
+// CHART VARIABLES
+
+static inline void rrdsetvar_free_variables(RRDSETVAR *rs) {
+ RRDSET *st = rs->rrdset;
+
+ // CHART
+
+ rrdvar_free(st->rrdhost, &st->variables_root_index, rs->var_local);
+ rs->var_local = NULL;
+
+ // FAMILY
+
+ rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family);
+ rs->var_family = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host);
+ rs->var_host = NULL;
+
+ // HOST
+
+ rrdvar_free(st->rrdhost, &st->rrdfamily->variables_root_index, rs->var_family_name);
+ rs->var_family_name = NULL;
+
+ rrdvar_free(st->rrdhost, &st->rrdhost->variables_root_index, rs->var_host_name);
+ rs->var_host_name = NULL;
+
+ // KEYS
+
+ freez(rs->key_fullid);
+ rs->key_fullid = NULL;
+
+ freez(rs->key_fullname);
+ rs->key_fullname = NULL;
+}
+
+static inline void rrdsetvar_create_variables(RRDSETVAR *rs) {
+ rrdsetvar_free_variables(rs);
+
+ RRDSET *st = rs->rrdset;
+
+ // KEYS
+
+ char buffer[RRDVAR_MAX_LENGTH + 1];
+ snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->id, rs->variable);
+ rs->key_fullid = strdupz(buffer);
+
+ snprintfz(buffer, RRDVAR_MAX_LENGTH, "%s.%s", st->name, rs->variable);
+ rs->key_fullname = strdupz(buffer);
+
+ // CHART
+
+ rs->var_local = rrdvar_create_and_index("local", &st->variables_root_index, rs->variable, rs->type, rs->value);
+
+ // FAMILY
+
+ rs->var_family = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_fullid, rs->type, rs->value);
+ rs->var_family_name = rrdvar_create_and_index("family", &st->rrdfamily->variables_root_index, rs->key_fullname, rs->type, rs->value);
+
+ // HOST
+
+ rs->var_host = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullid, rs->type, rs->value);
+ rs->var_host_name = rrdvar_create_and_index("host", &st->rrdhost->variables_root_index, rs->key_fullname, rs->type, rs->value);
+
+}
+
+RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, int type, void *value, uint32_t options) {
+ debug(D_VARIABLES, "RRDVARSET create for chart id '%s' name '%s' with variable name '%s'", st->id, st->name, variable);
+ RRDSETVAR *rs = (RRDSETVAR *)callocz(1, sizeof(RRDSETVAR));
+
+ rs->variable = strdupz(variable);
+ rs->type = type;
+ rs->value = value;
+ rs->options = options;
+ rs->rrdset = st;
+
+ rs->next = st->variables;
+ st->variables = rs;
+
+ rrdsetvar_create_variables(rs);
+
+ return rs;
+}
+
+void rrdsetvar_rename_all(RRDSET *st) {
+ debug(D_VARIABLES, "RRDSETVAR rename for chart id '%s' name '%s'", st->id, st->name);
+
+ RRDSETVAR *rs, *next = st->variables;
+ while((rs = next)) {
+ next = rs->next;
+ rrdsetvar_create_variables(rs);
+ }
+
+ rrdsetcalc_link_matching(st);
+}
+
+void rrdsetvar_free(RRDSETVAR *rs) {
+ RRDSET *st = rs->rrdset;
+ debug(D_VARIABLES, "RRDSETVAR free for chart id '%s' name '%s', variable '%s'", st->id, st->name, rs->variable);
+
+ if(st->variables == rs) {
+ st->variables = rs->next;
+ }
+ else {
+ RRDSETVAR *t;
+ for (t = st->variables; t && t->next != rs; t = t->next);
+ if(!t) error("RRDSETVAR '%s' not found in chart '%s' variables linked list", rs->key_fullname, st->id);
+ else t->next = rs->next;
+ }
+
+ rrdsetvar_free_variables(rs);
+
+ freez(rs->variable);
+ freez(rs);
+}
+
--- /dev/null
+#define NETDATA_HEALTH_INTERNALS
+#include "common.h"
+
+// ----------------------------------------------------------------------------
+// RRDVAR management
+
+inline int rrdvar_fix_name(char *variable) {
+ int fixed = 0;
+ while(*variable) {
+ if (!isalnum(*variable) && *variable != '.' && *variable != '_') {
+ *variable++ = '_';
+ fixed++;
+ }
+ else
+ variable++;
+ }
+
+ return fixed;
+}
+
+int rrdvar_compare(void* a, void* b) {
+ if(((RRDVAR *)a)->hash < ((RRDVAR *)b)->hash) return -1;
+ else if(((RRDVAR *)a)->hash > ((RRDVAR *)b)->hash) return 1;
+ else return strcmp(((RRDVAR *)a)->name, ((RRDVAR *)b)->name);
+}
+
+static inline RRDVAR *rrdvar_index_add(avl_tree_lock *tree, RRDVAR *rv) {
+ RRDVAR *ret = (RRDVAR *)avl_insert_lock(tree, (avl *)(rv));
+ if(ret != rv)
+ debug(D_VARIABLES, "Request to insert RRDVAR '%s' into index failed. Already exists.", rv->name);
+
+ return ret;
+}
+
+static inline RRDVAR *rrdvar_index_del(avl_tree_lock *tree, RRDVAR *rv) {
+ RRDVAR *ret = (RRDVAR *)avl_remove_lock(tree, (avl *)(rv));
+ if(!ret)
+ error("Request to remove RRDVAR '%s' from index failed. Not Found.", rv->name);
+
+ return ret;
+}
+
+static inline RRDVAR *rrdvar_index_find(avl_tree_lock *tree, const char *name, uint32_t hash) {
+ RRDVAR tmp;
+ tmp.name = (char *)name;
+ tmp.hash = (hash)?hash:simple_hash(tmp.name);
+
+ return (RRDVAR *)avl_search_lock(tree, (avl *)&tmp);
+}
+
+inline void rrdvar_free(RRDHOST *host, avl_tree_lock *tree, RRDVAR *rv) {
+ (void)host;
+
+ if(!rv) return;
+
+ if(tree) {
+ debug(D_VARIABLES, "Deleting variable '%s'", rv->name);
+ if(unlikely(!rrdvar_index_del(tree, rv)))
+ error("Attempted to delete variable '%s' from host '%s', but it is not found.", rv->name, host->hostname);
+ }
+
+ freez(rv->name);
+ freez(rv);
+}
+
+inline RRDVAR *rrdvar_create_and_index(const char *scope, avl_tree_lock *tree, const char *name, int type, void *value) {
+ char *variable = strdupz(name);
+ rrdvar_fix_name(variable);
+ uint32_t hash = simple_hash(variable);
+
+ RRDVAR *rv = rrdvar_index_find(tree, variable, hash);
+ if(unlikely(!rv)) {
+ debug(D_VARIABLES, "Variable '%s' not found in scope '%s'. Creating a new one.", variable, scope);
+
+ rv = callocz(1, sizeof(RRDVAR));
+ rv->name = variable;
+ rv->hash = hash;
+ rv->type = type;
+ rv->value = value;
+
+ RRDVAR *ret = rrdvar_index_add(tree, rv);
+ if(unlikely(ret != rv)) {
+ debug(D_VARIABLES, "Variable '%s' in scope '%s' already exists", variable, scope);
+ rrdvar_free(NULL, NULL, rv);
+ rv = NULL;
+ }
+ else
+ debug(D_VARIABLES, "Variable '%s' created in scope '%s'", variable, scope);
+ }
+ else {
+ debug(D_VARIABLES, "Variable '%s' is already found in scope '%s'.", variable, scope);
+
+ // already exists
+ freez(variable);
+
+ // this is important
+ // it must return NULL - not the existing variable - or double-free will happen
+ rv = NULL;
+ }
+
+ return rv;
+}
+
+// ----------------------------------------------------------------------------
+// CUSTOM VARIABLES
+
+RRDVAR *rrdvar_custom_host_variable_create(RRDHOST *host, const char *name) {
+ calculated_number *v = callocz(1, sizeof(calculated_number));
+ *v = NAN;
+ RRDVAR *rv = rrdvar_create_and_index("host", &host->variables_root_index, name, RRDVAR_TYPE_CALCULATED_ALLOCATED, v);
+ if(unlikely(!rv)) {
+ free(v);
+ error("Requested variable '%s' already exists - possibly 2 plugins will be updating it at the same time", name);
+
+ char *variable = strdupz(name);
+ rrdvar_fix_name(variable);
+ uint32_t hash = simple_hash(variable);
+
+ rv = rrdvar_index_find(&host->variables_root_index, variable, hash);
+ }
+
+ return rv;
+}
+
+void rrdvar_custom_host_variable_destroy(RRDHOST *host, const char *name) {
+ char *variable = strdupz(name);
+ rrdvar_fix_name(variable);
+ uint32_t hash = simple_hash(variable);
+
+ RRDVAR *rv = rrdvar_index_find(&host->variables_root_index, variable, hash);
+ freez(variable);
+
+ if(!rv) {
+ error("Attempted to remove variable '%s' from host '%s', but it does not exist.", name, host->hostname);
+ return;
+ }
+
+ if(rv->type != RRDVAR_TYPE_CALCULATED_ALLOCATED) {
+ error("Attempted to remove variable '%s' from host '%s', but it does not a custom allocated variable.", name, host->hostname);
+ return;
+ }
+
+ if(!rrdvar_index_del(&host->variables_root_index, rv)) {
+ error("Attempted to remove variable '%s' from host '%s', but it cannot be found.", name, host->hostname);
+ return;
+ }
+
+ freez(rv->name);
+ freez(rv->value);
+ freez(rv);
+}
+
+void rrdvar_custom_host_variable_set(RRDVAR *rv, calculated_number value) {
+ if(rv->type != RRDVAR_TYPE_CALCULATED_ALLOCATED)
+ error("requested to set variable '%s' to value " CALCULATED_NUMBER_FORMAT " but the variable is not a custom one.", rv->name, value);
+ else {
+ calculated_number *v = rv->value;
+ *v = value;
+ }
+}
+
+// ----------------------------------------------------------------------------
+// RRDVAR lookup
+
+static calculated_number rrdvar2number(RRDVAR *rv) {
+ switch(rv->type) {
+ case RRDVAR_TYPE_CALCULATED_ALLOCATED:
+ case RRDVAR_TYPE_CALCULATED: {
+ calculated_number *n = (calculated_number *)rv->value;
+ return *n;
+ }
+
+ case RRDVAR_TYPE_TIME_T: {
+ time_t *n = (time_t *)rv->value;
+ return *n;
+ }
+
+ case RRDVAR_TYPE_COLLECTED: {
+ collected_number *n = (collected_number *)rv->value;
+ return *n;
+ }
+
+ case RRDVAR_TYPE_TOTAL: {
+ total_number *n = (total_number *)rv->value;
+ return *n;
+ }
+
+ case RRDVAR_TYPE_INT: {
+ int *n = (int *)rv->value;
+ return *n;
+ }
+
+ default:
+ error("I don't know how to convert RRDVAR type %d to calculated_number", rv->type);
+ return NAN;
+ }
+}
+
+int health_variable_lookup(const char *variable, uint32_t hash, RRDCALC *rc, calculated_number *result) {
+ RRDSET *st = rc->rrdset;
+ RRDVAR *rv;
+
+ if(!st) return 0;
+
+ rv = rrdvar_index_find(&st->variables_root_index, variable, hash);
+ if(rv) {
+ *result = rrdvar2number(rv);
+ return 1;
+ }
+
+ rv = rrdvar_index_find(&st->rrdfamily->variables_root_index, variable, hash);
+ if(rv) {
+ *result = rrdvar2number(rv);
+ return 1;
+ }
+
+ rv = rrdvar_index_find(&st->rrdhost->variables_root_index, variable, hash);
+ if(rv) {
+ *result = rrdvar2number(rv);
+ return 1;
+ }
+
+ return 0;
+}
+
+// ----------------------------------------------------------------------------
+// RRDVAR to JSON
+
+struct variable2json_helper {
+ BUFFER *buf;
+ size_t counter;
+};
+
+static int single_variable2json(void *entry, void *data) {
+ struct variable2json_helper *helper = (struct variable2json_helper *)data;
+ RRDVAR *rv = (RRDVAR *)entry;
+ calculated_number value = rrdvar2number(rv);
+
+ if(unlikely(isnan(value) || isinf(value)))
+ buffer_sprintf(helper->buf, "%s\n\t\t\"%s\": null", helper->counter?",":"", rv->name);
+ else
+ buffer_sprintf(helper->buf, "%s\n\t\t\"%s\": %0.5Lf", helper->counter?",":"", rv->name, (long double)value);
+
+ helper->counter++;
+
+ return 0;
+}
+
+void health_api_v1_chart_variables2json(RRDSET *st, BUFFER *buf) {
+ struct variable2json_helper helper = {
+ .buf = buf,
+ .counter = 0
+ };
+
+ buffer_sprintf(buf, "{\n\t\"chart\": \"%s\",\n\t\"chart_name\": \"%s\",\n\t\"chart_context\": \"%s\",\n\t\"chart_variables\": {", st->id, st->name, st->context);
+ avl_traverse_lock(&st->variables_root_index, single_variable2json, (void *)&helper);
+ buffer_sprintf(buf, "\n\t},\n\t\"family\": \"%s\",\n\t\"family_variables\": {", st->family);
+ helper.counter = 0;
+ avl_traverse_lock(&st->rrdfamily->variables_root_index, single_variable2json, (void *)&helper);
+ buffer_sprintf(buf, "\n\t},\n\t\"host\": \"%s\",\n\t\"host_variables\": {", st->rrdhost->hostname);
+ helper.counter = 0;
+ avl_traverse_lock(&st->rrdhost->variables_root_index, single_variable2json, (void *)&helper);
+ buffer_strcat(buf, "\n\t}\n}\n");
+}
+
static inline void free_pattern(struct simple_pattern *m) {
if(!m) return;
- if(m->next) free_pattern(m->next);
- if(m->child) free_pattern(m->child);
+ free_pattern(m->child);
+ free_pattern(m->next);
freez((void *)m->match);
freez(m);
}
void simple_pattern_free(SIMPLE_PATTERN *list) {
if(!list) return;
- free_pattern(((struct simple_pattern *)list)->next);
+ free_pattern(((struct simple_pattern *)list));
}
projects / netdata.git / commitdiff