char *prefix;
int database;
int max_set_size;
+ int max_set_duration;
_Bool store_rates;
redisContext *conn;
if (status != 0)
return status;
snprintf(key, sizeof(key), "%s%s",
- (node->prefix != NULL) ? node->prefix : REDIS_DEFAULT_PREFIX,
- ident);
+ (node->prefix != NULL) ? node->prefix : REDIS_DEFAULT_PREFIX, ident);
snprintf(time, sizeof(time), "%.9f", CDTIME_T_TO_DOUBLE(vl->time));
value_size = sizeof(value);
freeReplyObject(rr);
}
+ if (node->max_set_duration > 0) {
+ /*
+ * remove element, scored less than 'current-max_set_duration'
+ * '(%d' indicates 'less than' in redis CLI.
+ */
+ rr = redisCommand(node->conn, "ZREMRANGEBYSCORE %s -1 (%d", key,
+ (time - node->max_set_duration) + 1);
+ if (rr == NULL)
+ WARNING("ZREMRANGEBYSCORE command error. key:%s message:%s", key,
+ node->conn->errstr);
+ else
+ freeReplyObject(rr);
+ }
+
/* TODO(octo): This is more overhead than necessary. Use the cache and
* metadata to determine if it is a new metric and call SADD only once for
* each metric. */
node->prefix = NULL;
node->database = 0;
node->max_set_size = -1;
+ node->max_set_duration = -1;
node->store_rates = 1;
pthread_mutex_init(&node->lock, /* attr = */ NULL);
status = cf_util_get_int(child, &node->database);
} else if (strcasecmp("MaxSetSize", child->key) == 0) {
status = cf_util_get_int(child, &node->max_set_size);
+ } else if (strcasecmp("MaxSetDuration", child->key) == 0) {
+ status = cf_util_get_int(child, &node->max_set_duration);
} else if (strcasecmp("StoreRates", child->key) == 0) {
status = cf_util_get_boolean(child, &node->store_rates);
} else
} /* for (i = 0; i < ci->children_num; i++) */
if (status == 0) {
- char cb_name[DATA_MAX_NAME_LEN];
+ char cb_name[sizeof("write_redis/") + DATA_MAX_NAME_LEN];
snprintf(cb_name, sizeof(cb_name), "write_redis/%s", node->name);
- status = plugin_register_write(
- cb_name, wr_write, &(user_data_t){
- .data = node, .free_func = wr_config_free,
- });
+ status =
+ plugin_register_write(cb_name, wr_write,
+ &(user_data_t){
+ .data = node, .free_func = wr_config_free,
+ });
}
if (status != 0)