/******************************************************************************
* *
* Function: hk_history_prepare *
* *
* Purpose: prepares history housekeeping rule *
* *
* Parameters: rule - [IN/OUT] the history housekeeping rule *
* now - [IN] the current timestmap *
* *
* Author: Andris Zeila *
* *
* Comments: This function is called to initialize history rule data either *
* at start or when housekeeping is enabled for this rule. *
* It caches item history data and also prepares delete queue to be *
* processed during the first run. *
* *
******************************************************************************/
static void hk_history_prepare(zbx_hk_history_rule_t *rule, int now)
{
DB_RESULT result;
DB_ROW row;
zbx_hashset_create(&rule->item_cache, 1024, zbx_default_uint64_hash_func, zbx_default_uint64_compare_func);
zbx_vector_ptr_create(&rule->delete_queue);
zbx_vector_ptr_reserve(&rule->delete_queue, HK_INITIAL_DELETE_QUEUE_SIZE);
result = DBselect("select itemid,min(clock) from %s group by itemid", rule->table);
while (NULL != (row = DBfetch(result)))
{
zbx_uint64_t itemid;
int min_clock;
zbx_hk_item_cache_t item_record;
ZBX_STR2UINT64(itemid, row[0]);
min_clock = atoi(row[1]);
item_record.itemid = itemid;
item_record.min_clock = min_clock;
zbx_hashset_insert(&rule->item_cache, &item_record, sizeof(zbx_hk_item_cache_t));
}
DBfree_result(result);
}
/******************************************************************************
* *
* Function: DCflush_nextchecks *
* *
* Purpose: update triggers to UNKNOWN and generate events *
* *
******************************************************************************/
void DCflush_nextchecks(zbx_vector_ptr_t *trigger_diff)
{
const char *__function_name = "DCflush_nextchecks";
int i;
zbx_uint64_t *itemids = NULL;
zbx_timespec_t *timespecs = NULL;
char **errors = NULL;
zbx_hashset_t trigger_info;
zbx_vector_ptr_t trigger_order;
DC_TRIGGER *trigger;
zabbix_log(LOG_LEVEL_DEBUG, "In %s() nextcheck_num:%d", __function_name, nextcheck_num);
if (0 == nextcheck_num)
goto exit;
itemids = zbx_malloc(itemids, nextcheck_num * sizeof(zbx_uint64_t));
timespecs = zbx_malloc(timespecs, nextcheck_num * sizeof(zbx_timespec_t));
errors = zbx_malloc(errors, nextcheck_num * sizeof(char *));
for (i = 0; i < nextcheck_num; i++)
{
itemids[i] = nextchecks[i].itemid;
timespecs[i] = nextchecks[i].ts;
errors[i] = nextchecks[i].error_msg;
}
zbx_hashset_create(&trigger_info, MAX(100, 2 * nextcheck_num),
ZBX_DEFAULT_UINT64_HASH_FUNC, ZBX_DEFAULT_UINT64_COMPARE_FUNC);
zbx_vector_ptr_create(&trigger_order);
zbx_vector_ptr_reserve(&trigger_order, nextcheck_num);
DCconfig_get_triggers_by_itemids(&trigger_info, &trigger_order, itemids, timespecs, errors, nextcheck_num, 0);
zbx_free(errors);
zbx_free(timespecs);
zbx_free(itemids);
for (i = 0; i < trigger_order.values_num; i++)
{
trigger = (DC_TRIGGER *)trigger_order.values[i];
trigger->new_value = TRIGGER_VALUE_UNKNOWN;
}
zbx_process_triggers(&trigger_order, trigger_diff);
DCfree_triggers(&trigger_order);
zbx_hashset_destroy(&trigger_info);
zbx_vector_ptr_destroy(&trigger_order);
DCclean_nextchecks();
exit:
zabbix_log(LOG_LEVEL_DEBUG, "End of %s()", __function_name);
}
/******************************************************************************
* *
* Function: recv_getqueue *
* *
* Purpose: process queue request *
* *
* Parameters: sock - [IN] the request socket *
* jp - [IN] the request data *
* *
* Return value: SUCCEED - processed successfully *
* FAIL - an error occurred *
* *
******************************************************************************/
static int recv_getqueue(zbx_socket_t *sock, struct zbx_json_parse *jp)
{
const char *__function_name = "recv_getqueue";
int ret = FAIL, request_type = -1, now, i;
char type[MAX_STRING_LEN], sessionid[MAX_STRING_LEN];
zbx_vector_ptr_t queue;
struct zbx_json json;
zbx_hashset_t queue_stats;
zbx_queue_stats_t *stats;
zabbix_log(LOG_LEVEL_DEBUG, "In %s()", __function_name);
if (FAIL == zbx_json_value_by_name(jp, ZBX_PROTO_TAG_SID, sessionid, sizeof(sessionid)) ||
FAIL == zbx_session_validate(sessionid, USER_TYPE_SUPER_ADMIN))
{
zbx_send_response_raw(sock, ret, "Permission denied.", CONFIG_TIMEOUT);
goto out;
}
if (FAIL != zbx_json_value_by_name(jp, ZBX_PROTO_TAG_TYPE, type, sizeof(type)))
{
if (0 == strcmp(type, ZBX_PROTO_VALUE_GET_QUEUE_OVERVIEW))
request_type = ZBX_GET_QUEUE_OVERVIEW;
else if (0 == strcmp(type, ZBX_PROTO_VALUE_GET_QUEUE_PROXY))
request_type = ZBX_GET_QUEUE_PROXY;
else if (0 == strcmp(type, ZBX_PROTO_VALUE_GET_QUEUE_DETAILS))
request_type = ZBX_GET_QUEUE_DETAILS;
}
if (-1 == request_type)
{
zbx_send_response_raw(sock, ret, "Unsupported request type.", CONFIG_TIMEOUT);
goto out;
}
now = time(NULL);
zbx_vector_ptr_create(&queue);
DCget_item_queue(&queue, 6, -1);
zbx_json_init(&json, ZBX_JSON_STAT_BUF_LEN);
switch (request_type)
{
case ZBX_GET_QUEUE_OVERVIEW:
zbx_hashset_create(&queue_stats, 32, ZBX_DEFAULT_UINT64_HASH_FUNC,
ZBX_DEFAULT_UINT64_COMPARE_FUNC);
/* gather queue stats by item type */
for (i = 0; i < queue.values_num; i++)
{
zbx_queue_item_t *item = queue.values[i];
zbx_uint64_t id = item->type;
if (NULL == (stats = zbx_hashset_search(&queue_stats, &id)))
{
zbx_queue_stats_t data = {id};
stats = zbx_hashset_insert(&queue_stats, &data, sizeof(data));
}
queue_stats_update(stats, now - item->nextcheck);
}
zbx_json_addstring(&json, ZBX_PROTO_TAG_RESPONSE, ZBX_PROTO_VALUE_SUCCESS,
ZBX_JSON_TYPE_STRING);
queue_stats_export(&queue_stats, "itemtype", &json);
zbx_hashset_destroy(&queue_stats);
break;
case ZBX_GET_QUEUE_PROXY:
zbx_hashset_create(&queue_stats, 32, ZBX_DEFAULT_UINT64_HASH_FUNC,
ZBX_DEFAULT_UINT64_COMPARE_FUNC);
/* gather queue stats by proxy hostid */
for (i = 0; i < queue.values_num; i++)
{
zbx_queue_item_t *item = queue.values[i];
zbx_uint64_t id = item->proxy_hostid;
if (NULL == (stats = zbx_hashset_search(&queue_stats, &id)))
{
zbx_queue_stats_t data = {id};
stats = zbx_hashset_insert(&queue_stats, &data, sizeof(data));
}
queue_stats_update(stats, now - item->nextcheck);
}
zbx_json_addstring(&json, ZBX_PROTO_TAG_RESPONSE, ZBX_PROTO_VALUE_SUCCESS,
ZBX_JSON_TYPE_STRING);
queue_stats_export(&queue_stats, "proxyid", &json);
zbx_hashset_destroy(&queue_stats);
break;
case ZBX_GET_QUEUE_DETAILS:
zbx_vector_ptr_sort(&queue, (zbx_compare_func_t)queue_compare_by_nextcheck_asc);
zbx_json_addstring(&json, ZBX_PROTO_TAG_RESPONSE, ZBX_PROTO_VALUE_SUCCESS,
ZBX_JSON_TYPE_STRING);
zbx_json_addarray(&json, ZBX_PROTO_TAG_DATA);
for (i = 0; i < queue.values_num && i <= 500; i++)
{
zbx_queue_item_t *item = queue.values[i];
zbx_json_addobject(&json, NULL);
zbx_json_adduint64(&json, "itemid", item->itemid);
zbx_json_adduint64(&json, "nextcheck", item->nextcheck);
zbx_json_close(&json);
}
zbx_json_close(&json);
break;
}
zabbix_log(LOG_LEVEL_DEBUG, "%s() json.buffer:'%s'", __function_name, json.buffer);
zbx_tcp_send_raw(sock, json.buffer);
DCfree_item_queue(&queue);
zbx_vector_ptr_destroy(&queue);
zbx_json_free(&json);
ret = SUCCEED;
out:
zabbix_log(LOG_LEVEL_DEBUG, "End of %s()", __function_name);
return ret;
}
/******************************************************************************
* *
* Function: db_get_query_functions *
* *
* Purpose: get event query functionids from database *
* *
******************************************************************************/
static void db_get_query_functions(zbx_vector_ptr_t *event_queries)
{
DB_ROW row;
DB_RESULT result;
int i;
zbx_vector_uint64_t triggerids;
zbx_hashset_t triggers;
zbx_hashset_iter_t iter;
char *sql = NULL;
size_t sql_alloc = 0, sql_offset = 0;
zbx_trigger_functions_t *trigger = NULL, trigger_local;
zbx_uint64_t triggerid, functionid;
zbx_event_suppress_query_t *query;
/* cache functionids by triggerids */
zbx_hashset_create(&triggers, 100, ZBX_DEFAULT_UINT64_HASH_FUNC, ZBX_DEFAULT_UINT64_COMPARE_FUNC);
zbx_vector_uint64_create(&triggerids);
for (i = 0; i < event_queries->values_num; i++)
{
query = (zbx_event_suppress_query_t *)event_queries->values[i];
zbx_vector_uint64_append(&triggerids, query->triggerid);
}
zbx_vector_uint64_sort(&triggerids, ZBX_DEFAULT_UINT64_COMPARE_FUNC);
zbx_vector_uint64_uniq(&triggerids, ZBX_DEFAULT_UINT64_COMPARE_FUNC);
zbx_strcpy_alloc(&sql, &sql_alloc, &sql_offset, "select functionid,triggerid from functions where");
DBadd_condition_alloc(&sql, &sql_alloc, &sql_offset, "triggerid", triggerids.values,
triggerids.values_num);
zbx_strcpy_alloc(&sql, &sql_alloc, &sql_offset, " order by triggerid");
result = DBselect("%s", sql);
zbx_free(sql);
while (NULL != (row = DBfetch(result)))
{
ZBX_STR2UINT64(functionid, row[0]);
ZBX_STR2UINT64(triggerid, row[1]);
if (NULL == trigger || trigger->triggerid != triggerid)
{
trigger_local.triggerid = triggerid;
trigger = (zbx_trigger_functions_t *)zbx_hashset_insert(&triggers, &trigger_local,
sizeof(trigger_local));
zbx_vector_uint64_create(&trigger->functionids);
}
zbx_vector_uint64_append(&trigger->functionids, functionid);
}
DBfree_result(result);
/* copy functionids to event queries */
for (i = 0; i < event_queries->values_num; i++)
{
query = (zbx_event_suppress_query_t *)event_queries->values[i];
if (NULL == (trigger = (zbx_trigger_functions_t *)zbx_hashset_search(&triggers, &query->triggerid)))
continue;
zbx_vector_uint64_append_array(&query->functionids, trigger->functionids.values,
trigger->functionids.values_num);
}
zbx_hashset_iter_reset(&triggers, &iter);
while (NULL != (trigger = (zbx_trigger_functions_t *)zbx_hashset_iter_next(&iter)))
zbx_vector_uint64_destroy(&trigger->functionids);
zbx_hashset_destroy(&triggers);
zbx_vector_uint64_destroy(&triggerids);
}