1 #ifndef NETDATA_HEALTH_H
2 #define NETDATA_HEALTH_H
4 extern int health_enabled;
6 extern int rrdvar_compare(void *a, void *b);
8 #define RRDVAR_TYPE_CALCULATED 1
9 #define RRDVAR_TYPE_TIME_T 2
10 #define RRDVAR_TYPE_COLLECTED 3
11 #define RRDVAR_TYPE_TOTAL 4
12 #define RRDVAR_TYPE_INT 5
14 // the variables as stored in the variables indexes
15 // there are 3 indexes:
16 // 1. at each chart (RRDSET.variables_root_index)
17 // 2. at each context (RRDFAMILY.variables_root_index)
18 // 3. at each host (RRDHOST.variables_root_index)
19 typedef struct rrdvar {
31 // variables linked to charts
32 // We link variables to point to the values that are already
33 // calculated / processed by the normal data collection process
34 // This means, there will be no speed penalty for using
36 typedef struct rrdsetvar {
37 char *fullid; // chart type.chart id.variable
38 char *fullname; // chart type.chart name.variable
39 char *variable; // variable
52 struct rrdset *rrdset;
54 struct rrdsetvar *next;
58 // variables linked to individual dimensions
59 // We link variables to point the values that are already
60 // calculated / processed by the normal data collection process
61 // This means, there will be no speed penalty for using
63 typedef struct rrddimvar {
67 char *id; // dimension id
68 char *name; // dimension name
69 char *fullidid; // chart type.chart id.dimension id
70 char *fullidname; // chart type.chart id.dimension name
71 char *fullnameid; // chart type.chart name.dimension id
72 char *fullnamename; // chart type.chart name.dimension name
85 RRDVAR *host_fullidid;
86 RRDVAR *host_fullidname;
87 RRDVAR *host_fullnameid;
88 RRDVAR *host_fullnamename;
90 struct rrddim *rrddim;
92 struct rrddimvar *next;
95 // calculated variables (defined in health configuration)
96 // These aggregate time-series data at fixed intervals
97 // (defined in their update_every member below)
98 // These increase the overhead of netdata.
100 // These calculations are allocated and linked (->next)
102 // Then are also linked to RRDSET (of course only when the
103 // chart is found, via ->rrdset_next and ->rrdset_prev).
104 // This double-linked list is maintained sorted at all times
105 // having as RRDSET.calculations the RRDCALC to be processed
108 #define RRDCALC_STATUS_UNINITIALIZED 0
109 #define RRDCALC_STATUS_UNDEFINED -1
110 #define RRDCALC_STATUS_CLEAR 1
111 #define RRDCALC_STATUS_RAISED 2
112 #define RRDCALC_STATUS_WARNING 3
113 #define RRDCALC_STATUS_CRITICAL 4
115 #define RRDCALC_OPTION_DB_ERROR 0x00000001
116 #define RRDCALC_OPTION_DB_NAN 0x00000002
117 #define RRDCALC_OPTION_DB_STALE 0x00000004
118 #define RRDCALC_OPTION_CALC_ERROR 0x00000008
119 #define RRDCALC_OPTION_WARN_ERROR 0x00000010
120 #define RRDCALC_OPTION_CRIT_ERROR 0x00000020
122 typedef struct rrdcalc {
128 char *chart; // the chart id this should be linked to
131 char *source; // the source of this calculation
133 char *dimensions; // the chart dimensions
135 int group; // grouping method: average, max, etc.
136 int before; // ending point in time-series
137 int after; // starting point in time-series
138 uint32_t options; // calculation options
139 int update_every; // update frequency for the calculation
144 EVAL_EXPRESSION *calculation;
145 EVAL_EXPRESSION *warning;
146 EVAL_EXPRESSION *critical;
148 uint32_t rrdcalc_options;
154 time_t last_status_change;
156 calculated_number value;
157 calculated_number old_value;
159 calculated_number green;
160 calculated_number red;
167 struct rrdset *rrdset;
168 struct rrdcalc *rrdset_next;
169 struct rrdcalc *rrdset_prev;
171 struct rrdcalc *next;
174 #define RRDCALC_HAS_DB_LOOKUP(rc) ((rc)->after)
177 // these are to be applied to charts found dynamically
178 // based on their context.
179 typedef struct rrdcalctemplate {
186 uint32_t hash_context;
188 char *source; // the source of this template
192 int group; // grouping method: average, max, etc.
193 int before; // ending point in time-series
194 int after; // starting point in time-series
195 uint32_t options; // calculation options
196 int update_every; // update frequency for the calculation
198 EVAL_EXPRESSION *calculation;
199 EVAL_EXPRESSION *warning;
200 EVAL_EXPRESSION *critical;
202 calculated_number green;
203 calculated_number red;
205 struct rrdcalctemplate *next;
208 #define RRDCALCTEMPLATE_HAS_CALCULATION(rt) ((rt)->after)
210 #define HEALTH_ENTRY_NOTIFICATIONS_PROCESSED 0x00000001
211 #define HEALTH_ENTRY_NOTIFICATIONS_UPDATED 0x00000002
213 typedef struct alarm_entry {
218 time_t non_clear_duration;
228 calculated_number old_value;
229 calculated_number new_value;
233 uint32_t notifications;
235 struct alarm_entry *updated_by;
236 struct alarm_entry *next;
239 typedef struct alarm_log {
248 extern void rrdsetvar_rename_all(RRDSET *st);
249 extern RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, int type, void *value, uint32_t options);
250 extern void rrdsetvar_free(RRDSETVAR *rs);
252 extern void rrddimvar_rename_all(RRDDIM *rd);
253 extern RRDDIMVAR *rrddimvar_create(RRDDIM *rd, int type, const char *prefix, const char *suffix, void *value, uint32_t options);
254 extern void rrddimvar_free(RRDDIMVAR *rs);
256 extern void rrdsetcalc_link_matching(RRDSET *st);
257 extern void rrdsetcalc_unlink(RRDCALC *rc);
258 extern void rrdcalctemplate_link_matching(RRDSET *st);
260 extern void health_init(void);
261 extern void *health_main(void *ptr);
263 extern void health_reload(void);
265 extern int health_variable_lookup(const char *variable, uint32_t hash, RRDCALC *rc, calculated_number *result);
267 #endif //NETDATA_HEALTH_H