#include "utils_complain.h"
#include "utils_latency.h"
-#include <pthread.h>
-
#include <sys/types.h>
-#include <sys/socket.h>
#include <netdb.h>
#include <poll.h>
{
metric_type_t type;
double value;
+ derive_t counter;
latency_counter_t *latency;
c_avl_tree_t *set;
unsigned long updates_num;
static double *conf_timer_percentile = NULL;
static size_t conf_timer_percentile_num = 0;
+static _Bool conf_counter_sum = 0;
static _Bool conf_timer_lower = 0;
static _Bool conf_timer_upper = 0;
static _Bool conf_timer_sum = 0;
return (NULL);
}
- metric = malloc (sizeof (*metric));
+ metric = calloc (1, sizeof (*metric));
if (metric == NULL)
{
- ERROR ("statsd plugin: malloc failed.");
+ ERROR ("statsd plugin: calloc failed.");
sfree (key_copy);
return (NULL);
}
- memset (metric, 0, sizeof (*metric));
metric->type = type;
metric->latency = NULL;
if (status != 0)
return (status);
+ /* Changes to the counter are added to (statsd_metric_t*)->value. ->counter is
+ * only updated in statsd_metric_submit_unsafe(). */
return (statsd_metric_add (name, (double) (value.gauge / scale.gauge),
STATSD_COUNTER));
} /* }}} int statsd_handle_counter */
cf_util_get_boolean (child, &conf_delete_gauges);
else if (strcasecmp ("DeleteSets", child->key) == 0)
cf_util_get_boolean (child, &conf_delete_sets);
+ else if (strcasecmp ("CounterSum", child->key) == 0)
+ cf_util_get_boolean (child, &conf_counter_sum);
else if (strcasecmp ("TimerLower", child->key) == 0)
cf_util_get_boolean (child, &conf_timer_lower);
else if (strcasecmp ("TimerUpper", child->key) == 0)
} /* }}} int statsd_metric_clear_set_unsafe */
/* Must hold metrics_lock when calling this function. */
-static int statsd_metric_submit_unsafe (char const *name, /* {{{ */
- statsd_metric_t const *metric)
+static int statsd_metric_submit_unsafe (char const *name, statsd_metric_t *metric) /* {{{ */
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
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);
+ 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));
+ }
- sstrncpy(vl.type, "gauge", sizeof (vl.type));
- values[0].gauge = (gauge_t) metric->value;
+ /* 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));
void *key;
void *value;
- pthread_mutex_lock (&metrics_lock);
-
if (network_thread_running)
{
network_thread_shutdown = 1;
}
network_thread_running = 0;
+ pthread_mutex_lock (&metrics_lock);
+
while (c_avl_pick (metrics_tree, &key, &value) == 0)
{
sfree (key);