AC_PLUGIN([protocols], [$plugin_protocols], [Protocol (IP, TCP, ...) statistics])
AC_PLUGIN([python], [$with_python], [Embed a Python interpreter])
AC_PLUGIN([redis], [$with_libcredis], [Redis plugin])
-AC_PLUGIN([riemann], [$have_protoc_c], [Riemann plugin])
AC_PLUGIN([routeros], [$with_librouteros], [RouterOS plugin])
AC_PLUGIN([rrdcached], [$librrd_rrdc_update], [RRDTool output plugin])
AC_PLUGIN([rrdtool], [$with_librrd], [RRDTool output plugin])
AC_PLUGIN([wireless], [$plugin_wireless], [Wireless statistics])
AC_PLUGIN([write_graphite], [yes], [Graphite / Carbon output plugin])
AC_PLUGIN([write_http], [$with_libcurl], [HTTP output plugin])
-AC_PLUGIN([write_redis], [$with_libcredis], [Redis output plugin])
AC_PLUGIN([write_mongodb], [$with_libmongoc], [MongoDB output plugin])
+AC_PLUGIN([write_redis], [$with_libcredis], [Redis output plugin])
+AC_PLUGIN([write_riemann], [$have_protoc_c], [Riemann output plugin])
AC_PLUGIN([xmms], [$with_libxmms], [XMMS statistics])
AC_PLUGIN([zfs_arc], [$plugin_zfs_arc], [ZFS ARC statistics])
protocols . . . . . . $enable_protocols
python . . . . . . . $enable_python
redis . . . . . . . . $enable_redis
- riemann . . . . . . . $enable_riemann
routeros . . . . . . $enable_routeros
rrdcached . . . . . . $enable_rrdcached
rrdtool . . . . . . . $enable_rrdtool
wireless . . . . . . $enable_wireless
write_graphite . . . $enable_write_graphite
write_http . . . . . $enable_write_http
- write_redis . . . . . $enable_write_redis
write_mongodb . . . . $enable_write_mongodb
+ write_redis . . . . . $enable_write_redis
+ write_riemann . . . . $enable_write_riemann
xmms . . . . . . . . $enable_xmms
zfs_arc . . . . . . . $enable_zfs_arc
collectd_DEPENDENCIES += redis.la
endif
-if BUILD_PLUGIN_RIEMANN
-BUILT_SOURCES += riemann.pb-c.c riemann.pb-c.h
-CLEANFILES += riemann.pb-c.c riemann.pb-c.h
-pkglib_LTLIBRARIES += riemann.la
-riemann_la_SOURCES = riemann.c riemann.pb-c.c
-riemann_la_LDFLAGS = -module -avoid-version
-riemann_la_LIBADD = -lprotobuf-c
-collectd_LDADD += "-dlopen" riemann.la
-collectd_DEPENDENCIES += riemann.la
-endif
-
if BUILD_PLUGIN_ROUTEROS
pkglib_LTLIBRARIES += routeros.la
routeros_la_SOURCES = routeros.c
collectd_DEPENDENCIES += write_redis.la
endif
+if BUILD_PLUGIN_WRITE_RIEMANN
+BUILT_SOURCES += riemann.pb-c.c riemann.pb-c.h
+CLEANFILES += riemann.pb-c.c riemann.pb-c.h
+pkglib_LTLIBRARIES += write_riemann.la
+write_riemann_la_SOURCES = write_riemann.c riemann.pb-c.c
+write_riemann_la_LDFLAGS = -module -avoid-version
+write_riemann_la_LIBADD = -lprotobuf-c
+collectd_LDADD += "-dlopen" write_riemann.la
+collectd_DEPENDENCIES += write_riemann.la
+endif
+
if BUILD_PLUGIN_XMMS
pkglib_LTLIBRARIES += xmms.la
xmms_la_SOURCES = xmms.c
+++ /dev/null
-/*
- * collectd - src/riemann.c
- *
- * Copyright (C) 2012 Pierre-Yves Ritschard <pyr@spootnik.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
- * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- */
-
-#include "collectd.h"
-#include "plugin.h"
-#include "common.h"
-#include "configfile.h"
-#include "utils_cache.h"
-#include "riemann.pb-c.h"
-
-#include <sys/socket.h>
-#include <arpa/inet.h>
-#include <errno.h>
-#include <netdb.h>
-#include <inttypes.h>
-#include <pthread.h>
-
-#define RIEMANN_DELAY 1
-#define RIEMANN_PORT "5555"
-#define RIEMANN_MAX_TAGS 37
-#define RIEMANN_EXTRA_TAGS 32
-
-struct riemann_host {
-#define F_CONNECT 0x01
- uint8_t flags;
- pthread_mutex_t lock;
- int delay;
- _Bool store_rates;
- char *node;
- char *service;
- int s;
-
- int reference_count;
-};
-
-static char **riemann_tags;
-static size_t riemann_tags_num;
-
-static int riemann_send(struct riemann_host *, Msg const *);
-static int riemann_notification(const notification_t *, user_data_t *);
-static int riemann_write(const data_set_t *, const value_list_t *, user_data_t *);
-static int riemann_connect(struct riemann_host *);
-static int riemann_disconnect (struct riemann_host *host);
-static void riemann_free(void *);
-static int riemann_config_host(oconfig_item_t *);
-static int riemann_config(oconfig_item_t *);
-void module_register(void);
-
-static void riemann_event_protobuf_free (Event *event) /* {{{ */
-{
- if (event == NULL)
- return;
-
- sfree (event->state);
- sfree (event->service);
- sfree (event->host);
- sfree (event->description);
-
- strarray_free (event->tags, event->n_tags);
- event->tags = NULL;
- event->n_tags = 0;
-
- sfree (event);
-} /* }}} void riemann_event_protobuf_free */
-
-static void riemann_msg_protobuf_free (Msg *msg) /* {{{ */
-{
- size_t i;
-
- if (msg == NULL)
- return;
-
- for (i = 0; i < msg->n_events; i++)
- {
- riemann_event_protobuf_free (msg->events[i]);
- msg->events[i] = NULL;
- }
-
- sfree (msg->events);
- msg->n_events = 0;
-
- sfree (msg);
-} /* }}} void riemann_msg_protobuf_free */
-
-static int
-riemann_send(struct riemann_host *host, Msg const *msg)
-{
- u_char *buffer;
- size_t buffer_len;
- int status;
-
- pthread_mutex_lock (&host->lock);
-
- status = riemann_connect (host);
- if (status != 0)
- {
- pthread_mutex_unlock (&host->lock);
- return status;
- }
-
- buffer_len = msg__get_packed_size(msg);
- buffer = malloc (buffer_len);
- if (buffer == NULL) {
- pthread_mutex_unlock (&host->lock);
- ERROR ("riemann plugin: malloc failed.");
- return ENOMEM;
- }
- memset (buffer, 0, buffer_len);
-
- msg__pack(msg, buffer);
-
- status = (int) swrite (host->s, buffer, buffer_len);
- if (status != 0)
- {
- char errbuf[1024];
-
- riemann_disconnect (host);
- pthread_mutex_unlock (&host->lock);
-
- ERROR ("riemann plugin: Sending to Riemann at %s:%s failed: %s",
- host->node,
- (host->service != NULL) ? host->service : RIEMANN_PORT,
- sstrerror (errno, errbuf, sizeof (errbuf)));
- sfree (buffer);
- return -1;
- }
-
- pthread_mutex_unlock (&host->lock);
- sfree (buffer);
- return 0;
-}
-
-static int riemann_event_add_tag (Event *event, /* {{{ */
- char const *format, ...)
-{
- va_list ap;
- char buffer[1024];
- size_t ret;
-
- va_start (ap, format);
- ret = vsnprintf (buffer, sizeof (buffer), format, ap);
- if (ret >= sizeof (buffer))
- ret = sizeof (buffer) - 1;
- buffer[ret] = 0;
- va_end (ap);
-
- return (strarray_add (&event->tags, &event->n_tags, buffer));
-} /* }}} int riemann_event_add_tag */
-
-static Msg *riemann_notification_to_protobuf (struct riemann_host *host, /* {{{ */
- notification_t const *n)
-{
- Msg *msg;
- Event *event;
- char service_buffer[6 * DATA_MAX_NAME_LEN];
- char const *severity;
- notification_meta_t *meta;
- int i;
-
- msg = malloc (sizeof (*msg));
- if (msg == NULL)
- {
- ERROR ("riemann plugin: malloc failed.");
- return (NULL);
- }
- memset (msg, 0, sizeof (*msg));
- msg__init (msg);
-
- msg->events = malloc (sizeof (*msg->events));
- if (msg->events == NULL)
- {
- ERROR ("riemann plugin: malloc failed.");
- sfree (msg);
- return (NULL);
- }
-
- event = malloc (sizeof (*event));
- if (event == NULL)
- {
- ERROR ("riemann plugin: malloc failed.");
- sfree (msg->events);
- sfree (msg);
- return (NULL);
- }
- memset (event, 0, sizeof (*event));
- event__init (event);
-
- msg->events[0] = event;
- msg->n_events = 1;
-
- event->host = strdup (n->host);
- event->time = CDTIME_T_TO_TIME_T (n->time);
- event->has_time = 1;
-
- switch (n->severity)
- {
- case NOTIF_OKAY: severity = "okay"; break;
- case NOTIF_WARNING: severity = "warning"; break;
- case NOTIF_FAILURE: severity = "failure"; break;
- default: severity = "unknown";
- }
- event->state = strdup (severity);
-
- riemann_event_add_tag (event, "notification");
- if (n->plugin[0] != 0)
- riemann_event_add_tag (event, "plugin:%s", n->plugin);
- if (n->plugin_instance[0] != 0)
- riemann_event_add_tag (event, "plugin_instance:%s",
- n->plugin_instance);
-
- if (n->type[0] != 0)
- riemann_event_add_tag (event, "type:%s", n->type);
- if (n->type_instance[0] != 0)
- riemann_event_add_tag (event, "type_instance:%s",
- n->type_instance);
-
- for (i = 0; i < riemann_tags_num; i++)
- riemann_event_add_tag (event, "%s", riemann_tags[i]);
-
- /* TODO: Use FORMAT_VL() here. */
- ssnprintf (service_buffer, sizeof(service_buffer),
- "%s-%s-%s-%s", n->plugin, n->plugin_instance,
- n->type, n->type_instance);
- event->service = strdup (service_buffer);
-
- /* Pull in values from threshold */
- for (meta = n->meta; meta != NULL; meta = meta->next)
- {
- if (strcasecmp ("CurrentValue", meta->name) != 0)
- continue;
-
- event->metric_d = meta->nm_value.nm_double;
- event->has_metric_d = 1;
- break;
- }
-
- DEBUG ("riemann plugin: Successfully created protobuf for notification: "
- "host = \"%s\", service = \"%s\", state = \"%s\"",
- event->host, event->service, event->state);
- return (msg);
-} /* }}} Msg *riemann_notification_to_protobuf */
-
-static Event *riemann_value_to_protobuf (struct riemann_host const *host, /* {{{ */
- data_set_t const *ds,
- value_list_t const *vl, size_t index,
- gauge_t const *rates)
-{
- Event *event;
- char service_buffer[6 * DATA_MAX_NAME_LEN];
- int i;
-
- event = malloc (sizeof (*event));
- if (event == NULL)
- {
- ERROR ("riemann plugin: malloc failed.");
- return (NULL);
- }
- memset (event, 0, sizeof (*event));
- event__init (event);
-
- event->host = strdup (vl->host);
- event->time = CDTIME_T_TO_TIME_T (vl->time);
- event->has_time = 1;
- event->ttl = CDTIME_T_TO_TIME_T (vl->interval) + host->delay;
- event->has_ttl = 1;
-
- riemann_event_add_tag (event, "plugin:%s", vl->plugin);
- if (vl->plugin_instance[0] != 0)
- riemann_event_add_tag (event, "plugin_instance:%s",
- vl->plugin_instance);
-
- riemann_event_add_tag (event, "type:%s", vl->type);
- if (vl->type_instance[0] != 0)
- riemann_event_add_tag (event, "type_instance:%s",
- vl->type_instance);
-
- if ((ds->ds[index].type != DS_TYPE_GAUGE) && (rates != NULL))
- {
- riemann_event_add_tag (event, "ds_type:%s:rate",
- DS_TYPE_TO_STRING(ds->ds[index].type));
- }
- else
- {
- riemann_event_add_tag (event, "ds_type:%s",
- DS_TYPE_TO_STRING(ds->ds[index].type));
- }
- riemann_event_add_tag (event, "ds_name:%s", ds->ds[index].name);
- riemann_event_add_tag (event, "ds_index:%zu", index);
-
- for (i = 0; i < riemann_tags_num; i++)
- riemann_event_add_tag (event, "%s", riemann_tags[i]);
-
- if (ds->ds[index].type == DS_TYPE_GAUGE)
- {
- event->has_metric_d = 1;
- event->metric_d = (double) vl->values[index].gauge;
- }
- else if (rates != NULL)
- {
- event->has_metric_d = 1;
- event->metric_d = (double) rates[index];
- }
- else
- {
- event->has_metric_sint64 = 1;
- if (ds->ds[index].type == DS_TYPE_DERIVE)
- event->metric_sint64 = (int64_t) vl->values[index].derive;
- else if (ds->ds[index].type == DS_TYPE_ABSOLUTE)
- event->metric_sint64 = (int64_t) vl->values[index].absolute;
- else
- event->metric_sint64 = (int64_t) vl->values[index].counter;
- }
-
- /* TODO: Use FORMAT_VL() here. */
- ssnprintf (service_buffer, sizeof(service_buffer),
- "%s-%s-%s-%s-%s", vl->plugin, vl->plugin_instance,
- vl->type, vl->type_instance, ds->ds[index].name);
- event->service = strdup (service_buffer);
-
- DEBUG ("riemann plugin: Successfully created protobuf for metric: "
- "host = \"%s\", service = \"%s\"",
- event->host, event->service);
- return (event);
-} /* }}} Event *riemann_value_to_protobuf */
-
-static Msg *riemann_value_list_to_protobuf (struct riemann_host const *host, /* {{{ */
- data_set_t const *ds,
- value_list_t const *vl)
-{
- Msg *msg;
- size_t i;
- gauge_t *rates = NULL;
-
- /* Initialize the Msg structure. */
- msg = malloc (sizeof (*msg));
- if (msg == NULL)
- {
- ERROR ("riemann plugin: malloc failed.");
- return (NULL);
- }
- memset (msg, 0, sizeof (*msg));
- msg__init (msg);
-
- /* Set up events. First, the list of pointers. */
- msg->n_events = (size_t) vl->values_len;
- msg->events = calloc (msg->n_events, sizeof (*msg->events));
- if (msg->events == NULL)
- {
- ERROR ("riemann plugin: calloc failed.");
- riemann_msg_protobuf_free (msg);
- return (NULL);
- }
-
- if (host->store_rates)
- {
- rates = uc_get_rate (ds, vl);
- if (rates == NULL)
- {
- ERROR ("riemann plugin: uc_get_rate failed.");
- riemann_msg_protobuf_free (msg);
- return (NULL);
- }
- }
-
- for (i = 0; i < msg->n_events; i++)
- {
- msg->events[i] = riemann_value_to_protobuf (host, ds, vl,
- (int) i, rates);
- if (msg->events[i] == NULL)
- {
- riemann_msg_protobuf_free (msg);
- sfree (rates);
- return (NULL);
- }
- }
-
- sfree (rates);
- return (msg);
-} /* }}} Msg *riemann_value_list_to_protobuf */
-
-static int
-riemann_notification(const notification_t *n, user_data_t *ud)
-{
- int status;
- struct riemann_host *host = ud->data;
- Msg *msg;
-
- msg = riemann_notification_to_protobuf (host, n);
- if (msg == NULL)
- return (-1);
-
- status = riemann_send (host, msg);
- if (status != 0)
- ERROR ("riemann plugin: riemann_send failed with status %i",
- status);
-
- riemann_msg_protobuf_free (msg);
- return (status);
-} /* }}} int riemann_notification */
-
-static int
-riemann_write(const data_set_t *ds,
- const value_list_t *vl,
- user_data_t *ud)
-{
- int status;
- struct riemann_host *host = ud->data;
- Msg *msg;
-
- msg = riemann_value_list_to_protobuf (host, ds, vl);
- if (msg == NULL)
- return (-1);
-
- status = riemann_send (host, msg);
- if (status != 0)
- ERROR ("riemann plugin: riemann_send failed with status %i",
- status);
-
- riemann_msg_protobuf_free (msg);
- return status;
-}
-
-/* host->lock must be held when calling this function. */
-static int
-riemann_connect(struct riemann_host *host)
-{
- int e;
- struct addrinfo *ai, *res, hints;
- char const *service;
-
- if (host->flags & F_CONNECT)
- return 0;
-
- memset(&hints, 0, sizeof(hints));
- memset(&service, 0, sizeof(service));
- hints.ai_family = PF_UNSPEC;
- hints.ai_socktype = SOCK_DGRAM;
-#ifdef AI_ADDRCONFIG
- hints.ai_flags |= AI_ADDRCONFIG;
-#endif
-
- assert (host->node != NULL);
- service = (host->service != NULL) ? host->service : RIEMANN_PORT;
-
- if ((e = getaddrinfo(host->node, service, &hints, &res)) != 0) {
- ERROR ("riemann plugin: Unable to resolve host \"%s\": %s",
- host->node, gai_strerror(e));
- return -1;
- }
-
- host->s = -1;
- for (ai = res; ai != NULL; ai = ai->ai_next) {
- if ((host->s = socket(ai->ai_family,
- ai->ai_socktype,
- ai->ai_protocol)) == -1) {
- continue;
- }
-
- if (connect(host->s, ai->ai_addr, ai->ai_addrlen) != 0) {
- close(host->s);
- host->s = -1;
- continue;
- }
-
- host->flags |= F_CONNECT;
- DEBUG("riemann plugin: got a succesful connection for: %s:%s",
- host->node, service);
- break;
- }
-
- freeaddrinfo(res);
-
- if (host->s < 0) {
- WARNING("riemann plugin: Unable to connect to Riemann at %s:%s",
- host->node, service);
- return -1;
- }
- return 0;
-}
-
-/* host->lock must be held when calling this function. */
-static int
-riemann_disconnect (struct riemann_host *host)
-{
- if ((host->flags & F_CONNECT) == 0)
- return (0);
-
- close (host->s);
- host->s = -1;
- host->flags &= ~F_CONNECT;
-
- return (0);
-}
-
-static void
-riemann_free(void *p)
-{
- struct riemann_host *host = p;
-
- if (host == NULL)
- return;
-
- pthread_mutex_lock (&host->lock);
-
- host->reference_count--;
- if (host->reference_count > 0)
- {
- pthread_mutex_unlock (&host->lock);
- return;
- }
-
- riemann_disconnect (host);
-
- sfree(host->service);
- pthread_mutex_destroy (&host->lock);
- sfree(host);
-}
-
-static int
-riemann_config_host(oconfig_item_t *ci)
-{
- struct riemann_host *host = NULL;
- int status = 0;
- int i;
- oconfig_item_t *child;
- char w_cb_name[DATA_MAX_NAME_LEN];
- char n_cb_name[DATA_MAX_NAME_LEN];
- user_data_t ud;
-
- if (ci->values_num != 1 ||
- ci->values[0].type != OCONFIG_TYPE_STRING) {
- WARNING("riemann hosts need one string argument");
- return -1;
- }
-
- if ((host = calloc(1, sizeof (*host))) == NULL) {
- WARNING("riemann host allocation failed");
- return ENOMEM;
- }
- pthread_mutex_init (&host->lock, NULL);
- host->reference_count = 1;
- host->node = NULL;
- host->service = NULL;
- host->delay = RIEMANN_DELAY;
-
- status = cf_util_get_string (ci, &host->node);
- if (status != 0) {
- WARNING("riemann plugin: Required host name is missing.");
- riemann_free (host);
- return -1;
- }
-
- for (i = 0; i < ci->children_num; i++) {
- /*
- * The code here could be simplified but makes room
- * for easy adding of new options later on.
- */
- child = &ci->children[i];
- status = 0;
-
- if (strcasecmp(child->key, "port") == 0) {
- status = cf_util_get_service (child, &host->service);
- if (status != 0) {
- ERROR ("riemann plugin: Invalid argument "
- "configured for the \"Port\" "
- "option.");
- break;
- }
- } else if (strcasecmp(child->key, "delay") == 0) {
- if ((status = cf_util_get_int(ci, &host->delay)) != 0)
- break;
- } else if (strcasecmp ("StoreRates", child->key) == 0) {
- status = cf_util_get_boolean (ci, &host->store_rates);
- if (status != 0)
- break;
- } else {
- WARNING("riemann plugin: ignoring unknown config "
- "option: \"%s\"", child->key);
- }
- }
- if (status != 0) {
- riemann_free (host);
- return status;
- }
-
- ssnprintf(w_cb_name, sizeof(w_cb_name), "write-riemann/%s:%s",
- host->node,
- (host->service != NULL) ? host->service : RIEMANN_PORT);
- ssnprintf(n_cb_name, sizeof(n_cb_name), "notification-riemann/%s:%s",
- host->node,
- (host->service != NULL) ? host->service : RIEMANN_PORT);
- DEBUG("riemann w_cb_name: %s", w_cb_name);
- DEBUG("riemann n_cb_name: %s", n_cb_name);
- ud.data = host;
- ud.free_func = riemann_free;
-
- pthread_mutex_lock (&host->lock);
-
- status = plugin_register_write (w_cb_name, riemann_write, &ud);
- if (status != 0)
- WARNING ("riemann plugin: plugin_register_write (\"%s\") "
- "failed with status %i.",
- w_cb_name, status);
- else /* success */
- host->reference_count++;
-
- status = plugin_register_notification (n_cb_name,
- riemann_notification, &ud);
- if (status != 0)
- WARNING ("riemann plugin: plugin_register_notification (\"%s\") "
- "failed with status %i.",
- n_cb_name, status);
- else /* success */
- host->reference_count++;
-
- if (host->reference_count <= 1)
- {
- /* Both callbacks failed => free memory.
- * We need to unlock here, because riemann_free() will lock.
- * This is not a race condition, because we're the only one
- * holding a reference. */
- pthread_mutex_unlock (&host->lock);
- riemann_free (host);
- return (-1);
- }
-
- host->reference_count--;
- pthread_mutex_unlock (&host->lock);
-
- return status;
-}
-
-static int
-riemann_config(oconfig_item_t *ci)
-{
- int i;
- oconfig_item_t *child;
- int status;
-
- for (i = 0; i < ci->children_num; i++) {
- child = &ci->children[i];
-
- if (strcasecmp(child->key, "host") == 0) {
- riemann_config_host(child);
- } else if (strcasecmp(child->key, "tag") == 0) {
- char *tmp = NULL;
- status = cf_util_get_string(child, &tmp);
- if (status != 0)
- continue;
-
- strarray_add (&riemann_tags, &riemann_tags_num, tmp);
- DEBUG("riemann plugin: Got tag: %s", tmp);
- sfree (tmp);
- } else {
- WARNING ("riemann plugin: Ignoring unknown "
- "configuration option \"%s\" at top level.",
- child->key);
- }
- }
- return (0);
-}
-
-void
-module_register(void)
-{
- DEBUG("riemann: module_register");
-
- plugin_register_complex_config ("riemann", riemann_config);
-}
-
-/* vim: set sw=8 sts=8 ts=8 noet : */
--- /dev/null
+/*
+ * collectd - src/riemann.c
+ *
+ * Copyright (C) 2012 Pierre-Yves Ritschard <pyr@spootnik.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "collectd.h"
+#include "plugin.h"
+#include "common.h"
+#include "configfile.h"
+#include "utils_cache.h"
+#include "riemann.pb-c.h"
+
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#include <netdb.h>
+#include <inttypes.h>
+#include <pthread.h>
+
+#define RIEMANN_DELAY 1
+#define RIEMANN_PORT "5555"
+#define RIEMANN_MAX_TAGS 37
+#define RIEMANN_EXTRA_TAGS 32
+
+struct riemann_host {
+#define F_CONNECT 0x01
+ uint8_t flags;
+ pthread_mutex_t lock;
+ int delay;
+ _Bool store_rates;
+ char *node;
+ char *service;
+ int s;
+
+ int reference_count;
+};
+
+static char **riemann_tags;
+static size_t riemann_tags_num;
+
+static int riemann_send(struct riemann_host *, Msg const *);
+static int riemann_notification(const notification_t *, user_data_t *);
+static int riemann_write(const data_set_t *, const value_list_t *, user_data_t *);
+static int riemann_connect(struct riemann_host *);
+static int riemann_disconnect (struct riemann_host *host);
+static void riemann_free(void *);
+static int riemann_config_host(oconfig_item_t *);
+static int riemann_config(oconfig_item_t *);
+void module_register(void);
+
+static void riemann_event_protobuf_free (Event *event) /* {{{ */
+{
+ if (event == NULL)
+ return;
+
+ sfree (event->state);
+ sfree (event->service);
+ sfree (event->host);
+ sfree (event->description);
+
+ strarray_free (event->tags, event->n_tags);
+ event->tags = NULL;
+ event->n_tags = 0;
+
+ sfree (event);
+} /* }}} void riemann_event_protobuf_free */
+
+static void riemann_msg_protobuf_free (Msg *msg) /* {{{ */
+{
+ size_t i;
+
+ if (msg == NULL)
+ return;
+
+ for (i = 0; i < msg->n_events; i++)
+ {
+ riemann_event_protobuf_free (msg->events[i]);
+ msg->events[i] = NULL;
+ }
+
+ sfree (msg->events);
+ msg->n_events = 0;
+
+ sfree (msg);
+} /* }}} void riemann_msg_protobuf_free */
+
+static int
+riemann_send(struct riemann_host *host, Msg const *msg)
+{
+ u_char *buffer;
+ size_t buffer_len;
+ int status;
+
+ pthread_mutex_lock (&host->lock);
+
+ status = riemann_connect (host);
+ if (status != 0)
+ {
+ pthread_mutex_unlock (&host->lock);
+ return status;
+ }
+
+ buffer_len = msg__get_packed_size(msg);
+ buffer = malloc (buffer_len);
+ if (buffer == NULL) {
+ pthread_mutex_unlock (&host->lock);
+ ERROR ("riemann plugin: malloc failed.");
+ return ENOMEM;
+ }
+ memset (buffer, 0, buffer_len);
+
+ msg__pack(msg, buffer);
+
+ status = (int) swrite (host->s, buffer, buffer_len);
+ if (status != 0)
+ {
+ char errbuf[1024];
+
+ riemann_disconnect (host);
+ pthread_mutex_unlock (&host->lock);
+
+ ERROR ("riemann plugin: Sending to Riemann at %s:%s failed: %s",
+ host->node,
+ (host->service != NULL) ? host->service : RIEMANN_PORT,
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ sfree (buffer);
+ return -1;
+ }
+
+ pthread_mutex_unlock (&host->lock);
+ sfree (buffer);
+ return 0;
+}
+
+static int riemann_event_add_tag (Event *event, /* {{{ */
+ char const *format, ...)
+{
+ va_list ap;
+ char buffer[1024];
+ size_t ret;
+
+ va_start (ap, format);
+ ret = vsnprintf (buffer, sizeof (buffer), format, ap);
+ if (ret >= sizeof (buffer))
+ ret = sizeof (buffer) - 1;
+ buffer[ret] = 0;
+ va_end (ap);
+
+ return (strarray_add (&event->tags, &event->n_tags, buffer));
+} /* }}} int riemann_event_add_tag */
+
+static Msg *riemann_notification_to_protobuf (struct riemann_host *host, /* {{{ */
+ notification_t const *n)
+{
+ Msg *msg;
+ Event *event;
+ char service_buffer[6 * DATA_MAX_NAME_LEN];
+ char const *severity;
+ notification_meta_t *meta;
+ int i;
+
+ msg = malloc (sizeof (*msg));
+ if (msg == NULL)
+ {
+ ERROR ("riemann plugin: malloc failed.");
+ return (NULL);
+ }
+ memset (msg, 0, sizeof (*msg));
+ msg__init (msg);
+
+ msg->events = malloc (sizeof (*msg->events));
+ if (msg->events == NULL)
+ {
+ ERROR ("riemann plugin: malloc failed.");
+ sfree (msg);
+ return (NULL);
+ }
+
+ event = malloc (sizeof (*event));
+ if (event == NULL)
+ {
+ ERROR ("riemann plugin: malloc failed.");
+ sfree (msg->events);
+ sfree (msg);
+ return (NULL);
+ }
+ memset (event, 0, sizeof (*event));
+ event__init (event);
+
+ msg->events[0] = event;
+ msg->n_events = 1;
+
+ event->host = strdup (n->host);
+ event->time = CDTIME_T_TO_TIME_T (n->time);
+ event->has_time = 1;
+
+ switch (n->severity)
+ {
+ case NOTIF_OKAY: severity = "okay"; break;
+ case NOTIF_WARNING: severity = "warning"; break;
+ case NOTIF_FAILURE: severity = "failure"; break;
+ default: severity = "unknown";
+ }
+ event->state = strdup (severity);
+
+ riemann_event_add_tag (event, "notification");
+ if (n->plugin[0] != 0)
+ riemann_event_add_tag (event, "plugin:%s", n->plugin);
+ if (n->plugin_instance[0] != 0)
+ riemann_event_add_tag (event, "plugin_instance:%s",
+ n->plugin_instance);
+
+ if (n->type[0] != 0)
+ riemann_event_add_tag (event, "type:%s", n->type);
+ if (n->type_instance[0] != 0)
+ riemann_event_add_tag (event, "type_instance:%s",
+ n->type_instance);
+
+ for (i = 0; i < riemann_tags_num; i++)
+ riemann_event_add_tag (event, "%s", riemann_tags[i]);
+
+ /* TODO: Use FORMAT_VL() here. */
+ ssnprintf (service_buffer, sizeof(service_buffer),
+ "%s-%s-%s-%s", n->plugin, n->plugin_instance,
+ n->type, n->type_instance);
+ event->service = strdup (service_buffer);
+
+ /* Pull in values from threshold */
+ for (meta = n->meta; meta != NULL; meta = meta->next)
+ {
+ if (strcasecmp ("CurrentValue", meta->name) != 0)
+ continue;
+
+ event->metric_d = meta->nm_value.nm_double;
+ event->has_metric_d = 1;
+ break;
+ }
+
+ DEBUG ("riemann plugin: Successfully created protobuf for notification: "
+ "host = \"%s\", service = \"%s\", state = \"%s\"",
+ event->host, event->service, event->state);
+ return (msg);
+} /* }}} Msg *riemann_notification_to_protobuf */
+
+static Event *riemann_value_to_protobuf (struct riemann_host const *host, /* {{{ */
+ data_set_t const *ds,
+ value_list_t const *vl, size_t index,
+ gauge_t const *rates)
+{
+ Event *event;
+ char service_buffer[6 * DATA_MAX_NAME_LEN];
+ int i;
+
+ event = malloc (sizeof (*event));
+ if (event == NULL)
+ {
+ ERROR ("riemann plugin: malloc failed.");
+ return (NULL);
+ }
+ memset (event, 0, sizeof (*event));
+ event__init (event);
+
+ event->host = strdup (vl->host);
+ event->time = CDTIME_T_TO_TIME_T (vl->time);
+ event->has_time = 1;
+ event->ttl = CDTIME_T_TO_TIME_T (vl->interval) + host->delay;
+ event->has_ttl = 1;
+
+ riemann_event_add_tag (event, "plugin:%s", vl->plugin);
+ if (vl->plugin_instance[0] != 0)
+ riemann_event_add_tag (event, "plugin_instance:%s",
+ vl->plugin_instance);
+
+ riemann_event_add_tag (event, "type:%s", vl->type);
+ if (vl->type_instance[0] != 0)
+ riemann_event_add_tag (event, "type_instance:%s",
+ vl->type_instance);
+
+ if ((ds->ds[index].type != DS_TYPE_GAUGE) && (rates != NULL))
+ {
+ riemann_event_add_tag (event, "ds_type:%s:rate",
+ DS_TYPE_TO_STRING(ds->ds[index].type));
+ }
+ else
+ {
+ riemann_event_add_tag (event, "ds_type:%s",
+ DS_TYPE_TO_STRING(ds->ds[index].type));
+ }
+ riemann_event_add_tag (event, "ds_name:%s", ds->ds[index].name);
+ riemann_event_add_tag (event, "ds_index:%zu", index);
+
+ for (i = 0; i < riemann_tags_num; i++)
+ riemann_event_add_tag (event, "%s", riemann_tags[i]);
+
+ if (ds->ds[index].type == DS_TYPE_GAUGE)
+ {
+ event->has_metric_d = 1;
+ event->metric_d = (double) vl->values[index].gauge;
+ }
+ else if (rates != NULL)
+ {
+ event->has_metric_d = 1;
+ event->metric_d = (double) rates[index];
+ }
+ else
+ {
+ event->has_metric_sint64 = 1;
+ if (ds->ds[index].type == DS_TYPE_DERIVE)
+ event->metric_sint64 = (int64_t) vl->values[index].derive;
+ else if (ds->ds[index].type == DS_TYPE_ABSOLUTE)
+ event->metric_sint64 = (int64_t) vl->values[index].absolute;
+ else
+ event->metric_sint64 = (int64_t) vl->values[index].counter;
+ }
+
+ /* TODO: Use FORMAT_VL() here. */
+ ssnprintf (service_buffer, sizeof(service_buffer),
+ "%s-%s-%s-%s-%s", vl->plugin, vl->plugin_instance,
+ vl->type, vl->type_instance, ds->ds[index].name);
+ event->service = strdup (service_buffer);
+
+ DEBUG ("riemann plugin: Successfully created protobuf for metric: "
+ "host = \"%s\", service = \"%s\"",
+ event->host, event->service);
+ return (event);
+} /* }}} Event *riemann_value_to_protobuf */
+
+static Msg *riemann_value_list_to_protobuf (struct riemann_host const *host, /* {{{ */
+ data_set_t const *ds,
+ value_list_t const *vl)
+{
+ Msg *msg;
+ size_t i;
+ gauge_t *rates = NULL;
+
+ /* Initialize the Msg structure. */
+ msg = malloc (sizeof (*msg));
+ if (msg == NULL)
+ {
+ ERROR ("riemann plugin: malloc failed.");
+ return (NULL);
+ }
+ memset (msg, 0, sizeof (*msg));
+ msg__init (msg);
+
+ /* Set up events. First, the list of pointers. */
+ msg->n_events = (size_t) vl->values_len;
+ msg->events = calloc (msg->n_events, sizeof (*msg->events));
+ if (msg->events == NULL)
+ {
+ ERROR ("riemann plugin: calloc failed.");
+ riemann_msg_protobuf_free (msg);
+ return (NULL);
+ }
+
+ if (host->store_rates)
+ {
+ rates = uc_get_rate (ds, vl);
+ if (rates == NULL)
+ {
+ ERROR ("riemann plugin: uc_get_rate failed.");
+ riemann_msg_protobuf_free (msg);
+ return (NULL);
+ }
+ }
+
+ for (i = 0; i < msg->n_events; i++)
+ {
+ msg->events[i] = riemann_value_to_protobuf (host, ds, vl,
+ (int) i, rates);
+ if (msg->events[i] == NULL)
+ {
+ riemann_msg_protobuf_free (msg);
+ sfree (rates);
+ return (NULL);
+ }
+ }
+
+ sfree (rates);
+ return (msg);
+} /* }}} Msg *riemann_value_list_to_protobuf */
+
+static int
+riemann_notification(const notification_t *n, user_data_t *ud)
+{
+ int status;
+ struct riemann_host *host = ud->data;
+ Msg *msg;
+
+ msg = riemann_notification_to_protobuf (host, n);
+ if (msg == NULL)
+ return (-1);
+
+ status = riemann_send (host, msg);
+ if (status != 0)
+ ERROR ("riemann plugin: riemann_send failed with status %i",
+ status);
+
+ riemann_msg_protobuf_free (msg);
+ return (status);
+} /* }}} int riemann_notification */
+
+static int
+riemann_write(const data_set_t *ds,
+ const value_list_t *vl,
+ user_data_t *ud)
+{
+ int status;
+ struct riemann_host *host = ud->data;
+ Msg *msg;
+
+ msg = riemann_value_list_to_protobuf (host, ds, vl);
+ if (msg == NULL)
+ return (-1);
+
+ status = riemann_send (host, msg);
+ if (status != 0)
+ ERROR ("riemann plugin: riemann_send failed with status %i",
+ status);
+
+ riemann_msg_protobuf_free (msg);
+ return status;
+}
+
+/* host->lock must be held when calling this function. */
+static int
+riemann_connect(struct riemann_host *host)
+{
+ int e;
+ struct addrinfo *ai, *res, hints;
+ char const *service;
+
+ if (host->flags & F_CONNECT)
+ return 0;
+
+ memset(&hints, 0, sizeof(hints));
+ memset(&service, 0, sizeof(service));
+ hints.ai_family = PF_UNSPEC;
+ hints.ai_socktype = SOCK_DGRAM;
+#ifdef AI_ADDRCONFIG
+ hints.ai_flags |= AI_ADDRCONFIG;
+#endif
+
+ assert (host->node != NULL);
+ service = (host->service != NULL) ? host->service : RIEMANN_PORT;
+
+ if ((e = getaddrinfo(host->node, service, &hints, &res)) != 0) {
+ ERROR ("riemann plugin: Unable to resolve host \"%s\": %s",
+ host->node, gai_strerror(e));
+ return -1;
+ }
+
+ host->s = -1;
+ for (ai = res; ai != NULL; ai = ai->ai_next) {
+ if ((host->s = socket(ai->ai_family,
+ ai->ai_socktype,
+ ai->ai_protocol)) == -1) {
+ continue;
+ }
+
+ if (connect(host->s, ai->ai_addr, ai->ai_addrlen) != 0) {
+ close(host->s);
+ host->s = -1;
+ continue;
+ }
+
+ host->flags |= F_CONNECT;
+ DEBUG("riemann plugin: got a succesful connection for: %s:%s",
+ host->node, service);
+ break;
+ }
+
+ freeaddrinfo(res);
+
+ if (host->s < 0) {
+ WARNING("riemann plugin: Unable to connect to Riemann at %s:%s",
+ host->node, service);
+ return -1;
+ }
+ return 0;
+}
+
+/* host->lock must be held when calling this function. */
+static int
+riemann_disconnect (struct riemann_host *host)
+{
+ if ((host->flags & F_CONNECT) == 0)
+ return (0);
+
+ close (host->s);
+ host->s = -1;
+ host->flags &= ~F_CONNECT;
+
+ return (0);
+}
+
+static void
+riemann_free(void *p)
+{
+ struct riemann_host *host = p;
+
+ if (host == NULL)
+ return;
+
+ pthread_mutex_lock (&host->lock);
+
+ host->reference_count--;
+ if (host->reference_count > 0)
+ {
+ pthread_mutex_unlock (&host->lock);
+ return;
+ }
+
+ riemann_disconnect (host);
+
+ sfree(host->service);
+ pthread_mutex_destroy (&host->lock);
+ sfree(host);
+}
+
+static int
+riemann_config_host(oconfig_item_t *ci)
+{
+ struct riemann_host *host = NULL;
+ int status = 0;
+ int i;
+ oconfig_item_t *child;
+ char w_cb_name[DATA_MAX_NAME_LEN];
+ char n_cb_name[DATA_MAX_NAME_LEN];
+ user_data_t ud;
+
+ if (ci->values_num != 1 ||
+ ci->values[0].type != OCONFIG_TYPE_STRING) {
+ WARNING("riemann hosts need one string argument");
+ return -1;
+ }
+
+ if ((host = calloc(1, sizeof (*host))) == NULL) {
+ WARNING("riemann host allocation failed");
+ return ENOMEM;
+ }
+ pthread_mutex_init (&host->lock, NULL);
+ host->reference_count = 1;
+ host->node = NULL;
+ host->service = NULL;
+ host->delay = RIEMANN_DELAY;
+
+ status = cf_util_get_string (ci, &host->node);
+ if (status != 0) {
+ WARNING("riemann plugin: Required host name is missing.");
+ riemann_free (host);
+ return -1;
+ }
+
+ for (i = 0; i < ci->children_num; i++) {
+ /*
+ * The code here could be simplified but makes room
+ * for easy adding of new options later on.
+ */
+ child = &ci->children[i];
+ status = 0;
+
+ if (strcasecmp(child->key, "port") == 0) {
+ status = cf_util_get_service (child, &host->service);
+ if (status != 0) {
+ ERROR ("riemann plugin: Invalid argument "
+ "configured for the \"Port\" "
+ "option.");
+ break;
+ }
+ } else if (strcasecmp(child->key, "delay") == 0) {
+ if ((status = cf_util_get_int(ci, &host->delay)) != 0)
+ break;
+ } else if (strcasecmp ("StoreRates", child->key) == 0) {
+ status = cf_util_get_boolean (ci, &host->store_rates);
+ if (status != 0)
+ break;
+ } else {
+ WARNING("riemann plugin: ignoring unknown config "
+ "option: \"%s\"", child->key);
+ }
+ }
+ if (status != 0) {
+ riemann_free (host);
+ return status;
+ }
+
+ ssnprintf(w_cb_name, sizeof(w_cb_name), "write-riemann/%s:%s",
+ host->node,
+ (host->service != NULL) ? host->service : RIEMANN_PORT);
+ ssnprintf(n_cb_name, sizeof(n_cb_name), "notification-riemann/%s:%s",
+ host->node,
+ (host->service != NULL) ? host->service : RIEMANN_PORT);
+ DEBUG("riemann w_cb_name: %s", w_cb_name);
+ DEBUG("riemann n_cb_name: %s", n_cb_name);
+ ud.data = host;
+ ud.free_func = riemann_free;
+
+ pthread_mutex_lock (&host->lock);
+
+ status = plugin_register_write (w_cb_name, riemann_write, &ud);
+ if (status != 0)
+ WARNING ("riemann plugin: plugin_register_write (\"%s\") "
+ "failed with status %i.",
+ w_cb_name, status);
+ else /* success */
+ host->reference_count++;
+
+ status = plugin_register_notification (n_cb_name,
+ riemann_notification, &ud);
+ if (status != 0)
+ WARNING ("riemann plugin: plugin_register_notification (\"%s\") "
+ "failed with status %i.",
+ n_cb_name, status);
+ else /* success */
+ host->reference_count++;
+
+ if (host->reference_count <= 1)
+ {
+ /* Both callbacks failed => free memory.
+ * We need to unlock here, because riemann_free() will lock.
+ * This is not a race condition, because we're the only one
+ * holding a reference. */
+ pthread_mutex_unlock (&host->lock);
+ riemann_free (host);
+ return (-1);
+ }
+
+ host->reference_count--;
+ pthread_mutex_unlock (&host->lock);
+
+ return status;
+}
+
+static int
+riemann_config(oconfig_item_t *ci)
+{
+ int i;
+ oconfig_item_t *child;
+ int status;
+
+ for (i = 0; i < ci->children_num; i++) {
+ child = &ci->children[i];
+
+ if (strcasecmp(child->key, "host") == 0) {
+ riemann_config_host(child);
+ } else if (strcasecmp(child->key, "tag") == 0) {
+ char *tmp = NULL;
+ status = cf_util_get_string(child, &tmp);
+ if (status != 0)
+ continue;
+
+ strarray_add (&riemann_tags, &riemann_tags_num, tmp);
+ DEBUG("riemann plugin: Got tag: %s", tmp);
+ sfree (tmp);
+ } else {
+ WARNING ("riemann plugin: Ignoring unknown "
+ "configuration option \"%s\" at top level.",
+ child->key);
+ }
+ }
+ return (0);
+}
+
+void
+module_register(void)
+{
+ DEBUG("riemann: module_register");
+
+ plugin_register_complex_config ("riemann", riemann_config);
+}
+
+/* vim: set sw=8 sts=8 ts=8 noet : */
projects / collectd.git / commitdiff