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
13 // the variables as stored in the variables indexes
14 // there are 3 indexes:
15 // 1. at each chart (RRDSET.variables_root_index)
16 // 2. at each context (RRDCONTEXT.variables_root_index)
17 // 3. at each host (RRDHOST.variables_root_index)
18 typedef struct rrdvar {
30 // variables linked to charts
31 // We link variables to point to the values that are already
32 // calculated / processed by the normal data collection process
33 // This means, there will be no speed penalty for using
35 typedef struct rrdsetvar {
36 char *fullid; // chart type.chart id.variable
37 char *fullname; // chart type.chart name.variable
38 char *variable; // variable
51 struct rrdset *rrdset;
53 struct rrdsetvar *next;
57 // variables linked to individual dimensions
58 // We link variables to point the values that are already
59 // calculated / processed by the normal data collection process
60 // This means, there will be no speed penalty for using
62 typedef struct rrddimvar {
66 char *id; // dimension id
67 char *name; // dimension name
68 char *fullidid; // chart type.chart id.dimension id
69 char *fullidname; // chart type.chart id.dimension name
70 char *fullnameid; // chart type.chart name.dimension id
71 char *fullnamename; // chart type.chart name.dimension name
84 RRDVAR *host_fullidid;
85 RRDVAR *host_fullidname;
86 RRDVAR *host_fullnameid;
87 RRDVAR *host_fullnamename;
89 struct rrddim *rrddim;
91 struct rrddimvar *next;
94 // calculated variables (defined in health configuration)
95 // These aggregate time-series data at fixed intervals
96 // (defined in their update_every member below)
97 // These increase the overhead of netdata.
99 // These calculations are allocated and linked (->next)
101 // Then are also linked to RRDSET (of course only when the
102 // chart is found, via ->rrdset_next and ->rrdset_prev).
103 // This double-linked list is maintained sorted at all times
104 // having as RRDSET.calculations the RRDCALC to be processed
107 #define RRDCALC_STATUS_UNINITIALIZED 0
108 #define RRDCALC_STATUS_UNDEFINED -1
109 #define RRDCALC_STATUS_OFF 1
110 #define RRDCALC_STATUS_RAISED 2
112 #define RRDCALC_OPTION_DB_ERROR 0x00000001
113 #define RRDCALC_OPTION_DB_NAN 0x00000002
114 #define RRDCALC_OPTION_DB_STALE 0x00000004
115 #define RRDCALC_OPTION_CALC_ERROR 0x00000008
116 #define RRDCALC_OPTION_WARN_ERROR 0x00000010
117 #define RRDCALC_OPTION_CRIT_ERROR 0x00000020
119 typedef struct rrdcalc {
125 char *chart; // the chart id this should be linked to
128 char *source; // the source of this calculation
130 char *dimensions; // the chart dimensions
132 int group; // grouping method: average, max, etc.
133 int before; // ending point in time-series
134 int after; // starting point in time-series
135 uint32_t options; // calculation options
136 int update_every; // update frequency for the calculation
141 EVAL_EXPRESSION *calculation;
142 EVAL_EXPRESSION *warning;
143 EVAL_EXPRESSION *critical;
145 uint32_t rrdcalc_options;
151 calculated_number value;
153 calculated_number green;
154 calculated_number red;
161 struct rrdset *rrdset;
162 struct rrdcalc *rrdset_next;
163 struct rrdcalc *rrdset_prev;
165 struct rrdcalc *next;
168 #define RRDCALC_HAS_DB_LOOKUP(rc) ((rc)->after)
171 // these are to be applied to charts found dynamically
172 // based on their context.
173 typedef struct rrdcalctemplate {
180 uint32_t hash_context;
182 char *source; // the source of this template
186 int group; // grouping method: average, max, etc.
187 int before; // ending point in time-series
188 int after; // starting point in time-series
189 uint32_t options; // calculation options
190 int update_every; // update frequency for the calculation
192 EVAL_EXPRESSION *calculation;
193 EVAL_EXPRESSION *warning;
194 EVAL_EXPRESSION *critical;
196 calculated_number green;
197 calculated_number red;
199 struct rrdcalctemplate *next;
202 #define RRDCALCTEMPLATE_HAS_CALCULATION(rt) ((rt)->after)
207 extern void rrdsetvar_rename_all(RRDSET *st);
208 extern RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, int type, void *value, uint32_t options);
209 extern void rrdsetvar_free(RRDSETVAR *rs);
211 extern void rrddimvar_rename_all(RRDDIM *rd);
212 extern RRDDIMVAR *rrddimvar_create(RRDDIM *rd, int type, const char *prefix, const char *suffix, void *value, uint32_t options);
213 extern void rrddimvar_free(RRDDIMVAR *rs);
215 extern void rrdsetcalc_link_matching(RRDSET *st);
216 extern void rrdsetcalc_unlink(RRDCALC *rc);
217 extern void rrdcalctemplate_link_matching(RRDSET *st);
219 extern void health_init(void);
220 extern void *health_main(void *ptr);
222 extern int health_variable_lookup(const char *variable, uint32_t hash, RRDCALC *rc, calculated_number *result);
224 #endif //NETDATA_HEALTH_H