size_t uc_get_size (void) {
size_t size_arrays = 0;
pthread_mutex_lock (&cache_lock);
size_arrays = (size_t) c_avl_size (cache_tree);
pthread_mutex_unlock (&cache_lock);
return (size_arrays);
}
/* Must hold metrics_lock when calling this function. */
static int statsd_metric_submit_unsafe (statsd_config_t *conf, char const *name, /* {{{ */
statsd_metric_t const *metric)
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
char *global_prefix = NULL;
char *type_prefix = NULL;
char *global_postfix = NULL;
char full_name[DATA_MAX_NAME_LEN] = {0};
DEBUG("statsd plugin: submit metric");
vl.values = values;
vl.values_len = 1;
sstrncpy (vl.host, hostname_g, sizeof (vl.host));
sstrncpy (vl.plugin, "statsd", sizeof (vl.plugin));
sstrncpy (vl.plugin_instance, conf->node_name, sizeof (vl.plugin_instance));
global_prefix = (NULL == conf->global_prefix) ? "" : conf->global_prefix;
global_postfix = (NULL == conf->global_postfix) ? "" : conf->global_postfix;
switch (metric->type) {
case STATSD_GAUGE:
sstrncpy (vl.type, "gauge", sizeof (vl.type));
type_prefix = (NULL == conf->gauge_prefix) ? "" : conf->gauge_prefix;
break;
case STATSD_TIMER:
sstrncpy (vl.type, "latency", sizeof (vl.type));
type_prefix = (NULL == conf->timer_prefix) ? "" : conf->timer_prefix;
break;
case STATSD_SET:
sstrncpy (vl.type, "objects", sizeof (vl.type));
type_prefix = (NULL == conf->set_prefix) ? "" : conf->set_prefix;
break;
case STATSD_COUNTER:
sstrncpy (vl.type, "derive", sizeof (vl.type));
type_prefix = (NULL == conf->counter_prefix) ? "" : conf->counter_prefix;
break;
default:
ERROR("statsd plugin: unknow metrics type %d", metric->type);
}
ssnprintf(full_name, sizeof(full_name), "%s%s%s%s", global_prefix, type_prefix, name, global_postfix);
DEBUG("statsd plugin: metric name %s", full_name);
sstrncpy (vl.type_instance, full_name, sizeof (vl.type_instance));
if (metric->type == STATSD_GAUGE)
values[0].gauge = (gauge_t) metric->value;
else if (metric->type == STATSD_TIMER)
{
size_t i;
_Bool have_events = (metric->updates_num > 0);
/* Make sure all timer metrics share the *same* timestamp. */
vl.time = cdtime ();
if (!conf->leave_metrics_name_asis)
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-average", full_name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_average (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
if (conf->timer_lower) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-lower", full_name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_min (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
if (conf->timer_upper) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-upper", full_name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_max (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
if (conf->timer_sum) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-sum", full_name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_sum (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
for (i = 0; i < conf->timer_percentile_num; i++)
{
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-percentile-%.0f", full_name, conf->timer_percentile[i]);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_percentile (metric->latency, conf->timer_percentile[i]))
: NAN;
plugin_dispatch_values (&vl);
}
/* Keep this at the end, since vl.type is set to "gauge" here. The
* vl.type's above are implicitly set to "latency". */
if (conf->timer_count) {
sstrncpy (vl.type, "gauge", sizeof (vl.type));
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-count", full_name);
values[0].gauge = latency_counter_get_num (metric->latency);
plugin_dispatch_values (&vl);
}
latency_counter_reset (metric->latency);
return (0);
}
else if (metric->type == STATSD_SET)
{
if (metric->set == NULL)
values[0].gauge = 0.0;
else
values[0].gauge = (gauge_t) c_avl_size (metric->set);
}
else { /* STATSD_COUNTER */
/*
* Expand a single value to two metrics:
*
* - The absolute counter, as a gauge
* - A derived rate for this counter
*/
values[0].derive = (derive_t) metric->value;
plugin_dispatch_values(&vl);
sstrncpy(vl.type, "gauge", sizeof (vl.type));
values[0].gauge = (gauge_t) metric->value;
}
return (plugin_dispatch_values (&vl));
} /* }}} int statsd_metric_submit_unsafe */
/* Must hold metrics_lock when calling this function. */
static int statsd_metric_submit_unsafe (char const *name, /* {{{ */
statsd_metric_t const *metric)
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
vl.values = values;
vl.values_len = 1;
sstrncpy (vl.host, hostname_g, sizeof (vl.host));
sstrncpy (vl.plugin, "statsd", sizeof (vl.plugin));
if (metric->type == STATSD_GAUGE)
sstrncpy (vl.type, "gauge", sizeof (vl.type));
else if (metric->type == STATSD_TIMER)
sstrncpy (vl.type, "latency", sizeof (vl.type));
else if (metric->type == STATSD_SET)
sstrncpy (vl.type, "objects", sizeof (vl.type));
else /* if (metric->type == STATSD_COUNTER) */
sstrncpy (vl.type, "derive", sizeof (vl.type));
sstrncpy (vl.type_instance, name, sizeof (vl.type_instance));
if (metric->type == STATSD_GAUGE)
values[0].gauge = (gauge_t) metric->value;
else if (metric->type == STATSD_TIMER)
{
size_t i;
_Bool have_events = (metric->updates_num > 0);
/* Make sure all timer metrics share the *same* timestamp. */
vl.time = cdtime ();
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-average", name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_average (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
if (conf_timer_lower) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-lower", name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_min (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
if (conf_timer_upper) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-upper", name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_max (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
if (conf_timer_sum) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-sum", name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_sum (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
for (i = 0; i < conf_timer_percentile_num; i++)
{
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-percentile-%.0f", name, conf_timer_percentile[i]);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_percentile (metric->latency, conf_timer_percentile[i]))
: NAN;
plugin_dispatch_values (&vl);
}
/* Keep this at the end, since vl.type is set to "gauge" here. The
* vl.type's above are implicitly set to "latency". */
if (conf_timer_count) {
sstrncpy (vl.type, "gauge", sizeof (vl.type));
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-count", name);
values[0].gauge = latency_counter_get_num (metric->latency);
plugin_dispatch_values (&vl);
}
latency_counter_reset (metric->latency);
return (0);
}
else if (metric->type == STATSD_SET)
{
if (metric->set == NULL)
values[0].gauge = 0.0;
else
values[0].gauge = (gauge_t) c_avl_size (metric->set);
}
else
values[0].derive = (derive_t) metric->value;
return (plugin_dispatch_values (&vl));
} /* }}} int statsd_metric_submit_unsafe */
int uc_get_names (char ***ret_names, cdtime_t **ret_times, size_t *ret_number)
{
c_avl_iterator_t *iter;
char *key;
cache_entry_t *value;
char **names = NULL;
cdtime_t *times = NULL;
size_t number = 0;
size_t size_arrays = 0;
int status = 0;
if ((ret_names == NULL) || (ret_number == NULL))
return (-1);
pthread_mutex_lock (&cache_lock);
size_arrays = (size_t) c_avl_size (cache_tree);
if (size_arrays < 1)
{
/* Handle the "no values" case here, to avoid the error message when
* calloc() returns NULL. */
pthread_mutex_unlock (&cache_lock);
return (0);
}
names = calloc (size_arrays, sizeof (*names));
times = calloc (size_arrays, sizeof (*times));
if ((names == NULL) || (times == NULL))
{
ERROR ("uc_get_names: calloc failed.");
sfree (names);
sfree (times);
pthread_mutex_unlock (&cache_lock);
return (ENOMEM);
}
iter = c_avl_get_iterator (cache_tree);
while (c_avl_iterator_next (iter, (void *) &key, (void *) &value) == 0)
{
/* remove missing values when list values */
if (value->state == STATE_MISSING)
continue;
/* c_avl_size does not return a number smaller than the number of elements
* returned by c_avl_iterator_next. */
assert (number < size_arrays);
if (ret_times != NULL)
times[number] = value->last_time;
names[number] = strdup (key);
if (names[number] == NULL)
{
status = -1;
break;
}
number++;
} /* while (c_avl_iterator_next) */
c_avl_iterator_destroy (iter);
pthread_mutex_unlock (&cache_lock);
if (status != 0)
{
size_t i;
for (i = 0; i < number; i++)
{
sfree (names[i]);
}
sfree (names);
sfree (times);
return (-1);
}
*ret_names = names;
if (ret_times != NULL)
*ret_times = times;
else
sfree (times);
*ret_number = number;
return (0);
} /* int uc_get_names */
/* Must hold metrics_lock when calling this function. */
static int statsd_metric_submit_unsafe (char const *name, statsd_metric_t *metric) /* {{{ */
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
vl.values = values;
vl.values_len = 1;
sstrncpy (vl.host, hostname_g, sizeof (vl.host));
sstrncpy (vl.plugin, "statsd", sizeof (vl.plugin));
if (metric->type == STATSD_GAUGE)
sstrncpy (vl.type, "gauge", sizeof (vl.type));
else if (metric->type == STATSD_TIMER)
sstrncpy (vl.type, "latency", sizeof (vl.type));
else if (metric->type == STATSD_SET)
sstrncpy (vl.type, "objects", sizeof (vl.type));
else /* if (metric->type == STATSD_COUNTER) */
sstrncpy (vl.type, "derive", sizeof (vl.type));
sstrncpy (vl.type_instance, name, sizeof (vl.type_instance));
if (metric->type == STATSD_GAUGE)
values[0].gauge = (gauge_t) metric->value;
else if (metric->type == STATSD_TIMER)
{
size_t i;
_Bool have_events = (metric->updates_num > 0);
/* Make sure all timer metrics share the *same* timestamp. */
vl.time = cdtime ();
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-average", name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_average (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
if (conf_timer_lower) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-lower", name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_min (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
if (conf_timer_upper) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-upper", name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_max (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
if (conf_timer_sum) {
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-sum", name);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_sum (metric->latency))
: NAN;
plugin_dispatch_values (&vl);
}
for (i = 0; i < conf_timer_percentile_num; i++)
{
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-percentile-%.0f", name, conf_timer_percentile[i]);
values[0].gauge = have_events
? CDTIME_T_TO_DOUBLE (latency_counter_get_percentile (metric->latency, conf_timer_percentile[i]))
: NAN;
plugin_dispatch_values (&vl);
}
/* Keep this at the end, since vl.type is set to "gauge" here. The
* vl.type's above are implicitly set to "latency". */
if (conf_timer_count) {
sstrncpy (vl.type, "gauge", sizeof (vl.type));
ssnprintf (vl.type_instance, sizeof (vl.type_instance),
"%s-count", name);
values[0].gauge = latency_counter_get_num (metric->latency);
plugin_dispatch_values (&vl);
}
latency_counter_reset (metric->latency);
return (0);
}
else if (metric->type == STATSD_SET)
{
if (metric->set == NULL)
values[0].gauge = 0.0;
else
values[0].gauge = (gauge_t) c_avl_size (metric->set);
}
else { /* STATSD_COUNTER */
gauge_t delta = nearbyint (metric->value);
/* Etsy's statsd writes counters as two metrics: a rate and the change since
* the last write. Since collectd does not reset its DERIVE metrics to zero,
* this makes little sense, but we're dispatching a "count" metric here
* anyway - if requested by the user - for compatibility reasons. */
if (conf_counter_sum)
{
sstrncpy (vl.type, "count", sizeof (vl.type));
values[0].gauge = delta;
plugin_dispatch_values (&vl);
/* restore vl.type */
sstrncpy (vl.type, "derive", sizeof (vl.type));
}
/* Rather than resetting value to zero, subtract delta so we correctly keep
* track of residuals. */
metric->value -= delta;
metric->counter += (derive_t) delta;
values[0].derive = metric->counter;
}
return (plugin_dispatch_values (&vl));
} /* }}} int statsd_metric_submit_unsafe */
