Merge tag 'upstream/1.3.0+dfsg'

Upstream version 1.3.0+dfsg

1 files changed, 283 insertions, 0 deletions

diff --git a/src/health.h b/src/health.h
new file mode 100644
index 000000000..ef1158a29
--- /dev/null
+++ b/src/health.h
@@ -0,0 +1,283 @@
+#ifndef NETDATA_HEALTH_H
+#define NETDATA_HEALTH_H
+
+extern int health_enabled;
+
+extern int rrdvar_compare(void *a, void *b);
+
+#define RRDVAR_TYPE_CALCULATED 1
+#define RRDVAR_TYPE_TIME_T     2
+#define RRDVAR_TYPE_COLLECTED  3
+#define RRDVAR_TYPE_TOTAL      4
+#define RRDVAR_TYPE_INT        5
+
+// the variables as stored in the variables indexes
+// there are 3 indexes:
+// 1. at each chart   (RRDSET.variables_root_index)
+// 2. at each context (RRDFAMILY.variables_root_index)
+// 3. at each host    (RRDHOST.variables_root_index)
+typedef struct rrdvar {
+    avl avl;
+
+    char *name;
+    uint32_t hash;
+
+    int type;
+    void *value;
+
+    time_t last_updated;
+} RRDVAR;
+
+// variables linked to charts
+// We link variables to point to the values that are already
+// calculated / processed by the normal data collection process
+// This means, there will be no speed penalty for using
+// these variables
+typedef struct rrdsetvar {
+    char *fullid;               // chart type.chart id.variable
+    char *fullname;             // chart type.chart name.variable
+    char *variable;             // variable
+
+    int type;
+    void *value;
+
+    uint32_t options;
+
+    RRDVAR *local;
+    RRDVAR *family;
+    RRDVAR *host;
+    RRDVAR *family_name;
+    RRDVAR *host_name;
+
+    struct rrdset *rrdset;
+
+    struct rrdsetvar *next;
+} RRDSETVAR;
+
+
+// variables linked to individual dimensions
+// We link variables to point the values that are already
+// calculated / processed by the normal data collection process
+// This means, there will be no speed penalty for using
+// these variables
+typedef struct rrddimvar {
+    char *prefix;
+    char *suffix;
+
+    char *id;                   // dimension id
+    char *name;                 // dimension name
+    char *fullidid;             // chart type.chart id.dimension id
+    char *fullidname;           // chart type.chart id.dimension name
+    char *fullnameid;           // chart type.chart name.dimension id
+    char *fullnamename;         // chart type.chart name.dimension name
+
+    int type;
+    void *value;
+
+    uint32_t options;
+
+    RRDVAR *local_id;
+    RRDVAR *local_name;
+
+    RRDVAR *family_id;
+    RRDVAR *family_name;
+
+    RRDVAR *host_fullidid;
+    RRDVAR *host_fullidname;
+    RRDVAR *host_fullnameid;
+    RRDVAR *host_fullnamename;
+
+    struct rrddim *rrddim;
+
+    struct rrddimvar *next;
+} RRDDIMVAR;
+
+// calculated variables (defined in health configuration)
+// These aggregate time-series data at fixed intervals
+// (defined in their update_every member below)
+// These increase the overhead of netdata.
+//
+// These calculations are allocated and linked (->next)
+// under RRDHOST.
+// Then are also linked to RRDSET (of course only when the
+// chart is found, via ->rrdset_next and ->rrdset_prev).
+// This double-linked list is maintained sorted at all times
+// having as RRDSET.calculations the RRDCALC to be processed
+// next.
+
+#define RRDCALC_STATUS_UNINITIALIZED  0
+#define RRDCALC_STATUS_UNDEFINED     -1
+#define RRDCALC_STATUS_CLEAR          1
+#define RRDCALC_STATUS_RAISED         2
+#define RRDCALC_STATUS_WARNING        3
+#define RRDCALC_STATUS_CRITICAL       4
+
+#define RRDCALC_FLAG_DB_ERROR      0x00000001
+#define RRDCALC_FLAG_DB_NAN        0x00000002
+#define RRDCALC_FLAG_DB_STALE      0x00000004
+#define RRDCALC_FLAG_CALC_ERROR    0x00000008
+#define RRDCALC_FLAG_WARN_ERROR    0x00000010
+#define RRDCALC_FLAG_CRIT_ERROR    0x00000020
+
+typedef struct rrdcalc {
+    char *name;
+    uint32_t hash;
+
+    char *exec;
+
+    char *chart;        // the chart id this should be linked to
+    uint32_t hash_chart;
+
+    char *source;       // the source of this calculation
+    char *units;
+    char *info;
+
+    char *dimensions;   // the chart dimensions
+
+    int group;          // grouping method: average, max, etc.
+    int before;         // ending point in time-series
+    int after;          // starting point in time-series
+    uint32_t options;   // calculation options
+    int update_every;   // update frequency for the calculation
+
+    time_t last_updated;
+    time_t next_update;
+
+    EVAL_EXPRESSION *calculation;
+    EVAL_EXPRESSION *warning;
+    EVAL_EXPRESSION *critical;
+
+    uint32_t rrdcalc_flags;
+    int status;
+
+    time_t db_after;
+    time_t db_before;
+    time_t last_status_change;
+
+    calculated_number value;
+    calculated_number old_value;
+
+    calculated_number green;
+    calculated_number red;
+
+    RRDVAR *local;
+    RRDVAR *family;
+    RRDVAR *hostid;
+    RRDVAR *hostname;
+
+    struct rrdset *rrdset;
+    struct rrdcalc *rrdset_next;
+    struct rrdcalc *rrdset_prev;
+
+    struct rrdcalc *next;
+} RRDCALC;
+
+#define RRDCALC_HAS_DB_LOOKUP(rc) ((rc)->after)
+
+// RRDCALCTEMPLATE
+// these are to be applied to charts found dynamically
+// based on their context.
+typedef struct rrdcalctemplate {
+    char *name;
+    uint32_t hash_name;
+
+    char *exec;
+
+    char *context;
+    uint32_t hash_context;
+
+    char *source;       // the source of this template
+    char *units;
+    char *info;
+
+    char *dimensions;
+
+    int group;          // grouping method: average, max, etc.
+    int before;         // ending point in time-series
+    int after;          // starting point in time-series
+    uint32_t options;   // calculation options
+    int update_every;   // update frequency for the calculation
+
+    EVAL_EXPRESSION *calculation;
+    EVAL_EXPRESSION *warning;
+    EVAL_EXPRESSION *critical;
+
+    calculated_number green;
+    calculated_number red;
+
+    struct rrdcalctemplate *next;
+} RRDCALCTEMPLATE;
+
+#define RRDCALCTEMPLATE_HAS_CALCULATION(rt) ((rt)->after)
+
+#define HEALTH_ENTRY_NOTIFICATIONS_PROCESSED    0x00000001
+#define HEALTH_ENTRY_NOTIFICATIONS_UPDATED      0x00000002
+#define HEALTH_ENTRY_NOTIFICATIONS_EXEC_RUN     0x00000004
+#define HEALTH_ENTRY_NOTIFICATIONS_EXEC_FAILED  0x00000008
+
+typedef struct alarm_entry {
+    uint32_t id;
+
+    time_t when;
+    time_t duration;
+    time_t non_clear_duration;
+
+    char *name;
+    uint32_t hash_name;
+
+    char *chart;
+    uint32_t hash_chart;
+
+    char *family;
+
+    char *exec;
+    int exec_code;
+
+    char *source;
+    char *units;
+    char *info;
+
+    calculated_number old_value;
+    calculated_number new_value;
+    int old_status;
+    int new_status;
+
+    uint32_t notifications;
+
+    struct alarm_entry *updated_by;
+    struct alarm_entry *next;
+} ALARM_ENTRY;
+
+typedef struct alarm_log {
+    uint32_t nextid;
+    unsigned int count;
+    unsigned int max;
+    ALARM_ENTRY *alarms;
+    pthread_rwlock_t alarm_log_rwlock;
+} ALARM_LOG;
+
+#include "rrd.h"
+
+extern void rrdsetvar_rename_all(RRDSET *st);
+extern RRDSETVAR *rrdsetvar_create(RRDSET *st, const char *variable, int type, void *value, uint32_t options);
+extern void rrdsetvar_free(RRDSETVAR *rs);
+
+extern void rrddimvar_rename_all(RRDDIM *rd);
+extern RRDDIMVAR *rrddimvar_create(RRDDIM *rd, int type, const char *prefix, const char *suffix, void *value, uint32_t options);
+extern void rrddimvar_free(RRDDIMVAR *rs);
+
+extern void rrdsetcalc_link_matching(RRDSET *st);
+extern void rrdsetcalc_unlink(RRDCALC *rc);
+extern void rrdcalctemplate_link_matching(RRDSET *st);
+extern RRDCALC *rrdcalc_find(RRDSET *st, const char *name);
+
+extern void health_init(void);
+extern void *health_main(void *ptr);
+
+extern void health_reload(void);
+
+extern int health_variable_lookup(const char *variable, uint32_t hash, RRDCALC *rc, calculated_number *result);
+extern void health_alarms2json(RRDHOST *host, BUFFER *wb, int all);
+extern void health_alarm_log2json(RRDHOST *host, BUFFER *wb);
+
+#endif //NETDATA_HEALTH_H