*/
#include "collectd.h"
+
#include "common.h"
#include "plugin.h"
-#include "configfile.h"
-
#include "utils_cache.h"
+#include "utils_random.h"
-#include <pthread.h>
-#include <sys/socket.h>
#include <netdb.h>
#ifndef WT_DEFAULT_NODE
-# define WT_DEFAULT_NODE "localhost"
+#define WT_DEFAULT_NODE "localhost"
#endif
#ifndef WT_DEFAULT_SERVICE
-# define WT_DEFAULT_SERVICE "4242"
+#define WT_DEFAULT_SERVICE "4242"
#endif
#ifndef WT_DEFAULT_ESCAPE
-# define WT_DEFAULT_ESCAPE '.'
+#define WT_DEFAULT_ESCAPE '.'
#endif
/* Ethernet - (IPv6 + TCP) = 1500 - (40 + 32) = 1428 */
#ifndef WT_SEND_BUF_SIZE
-# define WT_SEND_BUF_SIZE 1428
+#define WT_SEND_BUF_SIZE 1428
#endif
/*
* Private variables
*/
-struct wt_callback
-{
- int sock_fd;
+struct wt_callback {
+ struct addrinfo *ai;
+ cdtime_t ai_last_update;
+ int sock_fd;
- char *node;
- char *service;
- char *host_tags;
+ char *node;
+ char *service;
+ char *host_tags;
- _Bool store_rates;
- _Bool always_append_ds;
+ _Bool store_rates;
+ _Bool always_append_ds;
- char send_buf[WT_SEND_BUF_SIZE];
- size_t send_buf_free;
- size_t send_buf_fill;
- cdtime_t send_buf_init_time;
+ char send_buf[WT_SEND_BUF_SIZE];
+ size_t send_buf_free;
+ size_t send_buf_fill;
+ cdtime_t send_buf_init_time;
- pthread_mutex_t send_lock;
+ pthread_mutex_t send_lock;
+
+ _Bool connect_failed_log_enabled;
+ int connect_dns_failed_attempts_remaining;
+ cdtime_t next_random_ttl;
};
+static cdtime_t resolve_interval = 0;
+static cdtime_t resolve_jitter = 0;
/*
* Functions
*/
-static void wt_reset_buffer(struct wt_callback *cb)
-{
- memset(cb->send_buf, 0, sizeof(cb->send_buf));
- cb->send_buf_free = sizeof(cb->send_buf);
- cb->send_buf_fill = 0;
- cb->send_buf_init_time = cdtime();
+static void wt_reset_buffer(struct wt_callback *cb) {
+ memset(cb->send_buf, 0, sizeof(cb->send_buf));
+ cb->send_buf_free = sizeof(cb->send_buf);
+ cb->send_buf_fill = 0;
+ cb->send_buf_init_time = cdtime();
}
-static int wt_send_buffer(struct wt_callback *cb)
-{
- ssize_t status = 0;
+static int wt_send_buffer(struct wt_callback *cb) {
+ ssize_t status = 0;
- status = swrite(cb->sock_fd, cb->send_buf, strlen(cb->send_buf));
- if (status < 0)
- {
- char errbuf[1024];
- ERROR("write_tsdb plugin: send failed with status %zi (%s)",
- status, sstrerror (errno, errbuf, sizeof (errbuf)));
+ status = swrite(cb->sock_fd, cb->send_buf, strlen(cb->send_buf));
+ if (status != 0) {
+ char errbuf[1024];
+ ERROR("write_tsdb plugin: send failed with status %zi (%s)", status,
+ sstrerror(errno, errbuf, sizeof(errbuf)));
- close (cb->sock_fd);
- cb->sock_fd = -1;
+ close(cb->sock_fd);
+ cb->sock_fd = -1;
- return -1;
- }
+ return -1;
+ }
- return 0;
+ return 0;
}
/* NOTE: You must hold cb->send_lock when calling this function! */
-static int wt_flush_nolock(cdtime_t timeout, struct wt_callback *cb)
-{
- int status;
-
- DEBUG("write_tsdb plugin: wt_flush_nolock: timeout = %.3f; "
- "send_buf_fill = %zu;",
- (double)timeout,
- cb->send_buf_fill);
-
- /* timeout == 0 => flush unconditionally */
- if (timeout > 0)
- {
- cdtime_t now;
-
- now = cdtime();
- if ((cb->send_buf_init_time + timeout) > now)
- return 0;
- }
+static int wt_flush_nolock(cdtime_t timeout, struct wt_callback *cb) {
+ int status;
- if (cb->send_buf_fill <= 0)
- {
- cb->send_buf_init_time = cdtime();
- return 0;
- }
+ DEBUG("write_tsdb plugin: wt_flush_nolock: timeout = %.3f; "
+ "send_buf_fill = %zu;",
+ (double)timeout, cb->send_buf_fill);
+
+ /* timeout == 0 => flush unconditionally */
+ if (timeout > 0) {
+ cdtime_t now;
+
+ now = cdtime();
+ if ((cb->send_buf_init_time + timeout) > now)
+ return 0;
+ }
+
+ if (cb->send_buf_fill == 0) {
+ cb->send_buf_init_time = cdtime();
+ return 0;
+ }
- status = wt_send_buffer(cb);
- wt_reset_buffer(cb);
+ status = wt_send_buffer(cb);
+ wt_reset_buffer(cb);
- return status;
+ return status;
}
-static int wt_callback_init(struct wt_callback *cb)
-{
- struct addrinfo ai_hints;
- struct addrinfo *ai_list;
- struct addrinfo *ai_ptr;
- int status;
+static cdtime_t new_random_ttl() {
+ if (resolve_jitter == 0)
+ return 0;
- const char *node = cb->node ? cb->node : WT_DEFAULT_NODE;
- const char *service = cb->service ? cb->service : WT_DEFAULT_SERVICE;
+ return (cdtime_t)cdrand_range(0, (long)resolve_jitter);
+}
- if (cb->sock_fd > 0)
- return 0;
+static int wt_callback_init(struct wt_callback *cb) {
+ int status;
+ cdtime_t now;
- memset(&ai_hints, 0, sizeof(ai_hints));
-#ifdef AI_ADDRCONFIG
- ai_hints.ai_flags |= AI_ADDRCONFIG;
-#endif
- ai_hints.ai_family = AF_UNSPEC;
- ai_hints.ai_socktype = SOCK_STREAM;
+ const char *node = cb->node ? cb->node : WT_DEFAULT_NODE;
+ const char *service = cb->service ? cb->service : WT_DEFAULT_SERVICE;
- ai_list = NULL;
+ if (cb->sock_fd > 0)
+ return 0;
- status = getaddrinfo(node, service, &ai_hints, &ai_list);
- if (status != 0)
- {
- ERROR("write_tsdb plugin: getaddrinfo (%s, %s) failed: %s",
- node, service, gai_strerror (status));
- return -1;
+ now = cdtime();
+ if (cb->ai) {
+ /* When we are here, we still have the IP in cache.
+ * If we have remaining attempts without calling the DNS, we update the
+ * last_update date so we keep the info until next time.
+ * If there is no more attempts, we need to flush the cache.
+ */
+
+ if ((cb->ai_last_update + resolve_interval + cb->next_random_ttl) < now) {
+ cb->next_random_ttl = new_random_ttl();
+ if (cb->connect_dns_failed_attempts_remaining > 0) {
+ /* Warning : this is run under send_lock mutex.
+ * This is why we do not use another mutex here.
+ * */
+ cb->ai_last_update = now;
+ cb->connect_dns_failed_attempts_remaining--;
+ } else {
+ freeaddrinfo(cb->ai);
+ cb->ai = NULL;
+ }
}
+ }
- assert (ai_list != NULL);
- for (ai_ptr = ai_list; ai_ptr != NULL; ai_ptr = ai_ptr->ai_next)
- {
- cb->sock_fd = socket(ai_ptr->ai_family, ai_ptr->ai_socktype,
- ai_ptr->ai_protocol);
- if (cb->sock_fd < 0)
- continue;
-
- status = connect(cb->sock_fd, ai_ptr->ai_addr, ai_ptr->ai_addrlen);
- if (status != 0)
- {
- close(cb->sock_fd);
- cb->sock_fd = -1;
- continue;
- }
-
- break;
+ if (cb->ai == NULL) {
+ if ((cb->ai_last_update + resolve_interval + cb->next_random_ttl) >= now) {
+ DEBUG("write_tsdb plugin: too many getaddrinfo(%s, %s) failures", node,
+ service);
+ return -1;
}
+ cb->ai_last_update = now;
+ cb->next_random_ttl = new_random_ttl();
+
+ struct addrinfo ai_hints = {
+ .ai_family = AF_UNSPEC,
+ .ai_flags = AI_ADDRCONFIG,
+ .ai_socktype = SOCK_STREAM,
+ };
+
+ status = getaddrinfo(node, service, &ai_hints, &cb->ai);
+ if (status != 0) {
+ if (cb->ai) {
+ freeaddrinfo(cb->ai);
+ cb->ai = NULL;
+ }
+ if (cb->connect_failed_log_enabled) {
+ ERROR("write_tsdb plugin: getaddrinfo(%s, %s) failed: %s", node,
+ service, gai_strerror(status));
+ cb->connect_failed_log_enabled = 0;
+ }
+ return -1;
+ }
+ }
- freeaddrinfo(ai_list);
-
+ assert(cb->ai != NULL);
+ for (struct addrinfo *ai = cb->ai; ai != NULL; ai = ai->ai_next) {
+ cb->sock_fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
if (cb->sock_fd < 0)
- {
- char errbuf[1024];
- ERROR("write_tsdb plugin: Connecting to %s:%s failed. "
- "The last error was: %s", node, service,
- sstrerror (errno, errbuf, sizeof(errbuf)));
- return -1;
+ continue;
+
+ set_sock_opts(cb->sock_fd);
+
+ status = connect(cb->sock_fd, ai->ai_addr, ai->ai_addrlen);
+ if (status != 0) {
+ close(cb->sock_fd);
+ cb->sock_fd = -1;
+ continue;
}
- wt_reset_buffer(cb);
+ break;
+ }
- return 0;
+ if (cb->sock_fd < 0) {
+ char errbuf[1024];
+ ERROR("write_tsdb plugin: Connecting to %s:%s failed. "
+ "The last error was: %s",
+ node, service, sstrerror(errno, errbuf, sizeof(errbuf)));
+ return -1;
+ }
+
+ if (0 == cb->connect_failed_log_enabled) {
+ WARNING("write_tsdb plugin: Connecting to %s:%s succeeded.", node, service);
+ cb->connect_failed_log_enabled = 1;
+ }
+ cb->connect_dns_failed_attempts_remaining = 1;
+
+ wt_reset_buffer(cb);
+
+ return 0;
}
-static void wt_callback_free(void *data)
-{
- struct wt_callback *cb;
+static void wt_callback_free(void *data) {
+ struct wt_callback *cb;
- if (data == NULL)
- return;
+ if (data == NULL)
+ return;
- cb = data;
+ cb = data;
- pthread_mutex_lock(&cb->send_lock);
+ pthread_mutex_lock(&cb->send_lock);
- wt_flush_nolock(0, cb);
+ wt_flush_nolock(0, cb);
- close(cb->sock_fd);
- cb->sock_fd = -1;
+ close(cb->sock_fd);
+ cb->sock_fd = -1;
- sfree(cb->node);
- sfree(cb->service);
- sfree(cb->host_tags);
+ sfree(cb->node);
+ sfree(cb->service);
+ sfree(cb->host_tags);
- pthread_mutex_destroy(&cb->send_lock);
+ pthread_mutex_unlock(&cb->send_lock);
+ pthread_mutex_destroy(&cb->send_lock);
- sfree(cb);
+ sfree(cb);
}
static int wt_flush(cdtime_t timeout,
const char *identifier __attribute__((unused)),
- user_data_t *user_data)
-{
- struct wt_callback *cb;
- int status;
+ user_data_t *user_data) {
+ struct wt_callback *cb;
+ int status;
- if (user_data == NULL)
- return -EINVAL;
+ if (user_data == NULL)
+ return -EINVAL;
- cb = user_data->data;
+ cb = user_data->data;
- pthread_mutex_lock(&cb->send_lock);
+ pthread_mutex_lock(&cb->send_lock);
- if (cb->sock_fd < 0)
- {
- status = wt_callback_init(cb);
- if (status != 0)
- {
- ERROR("write_tsdb plugin: wt_callback_init failed.");
- pthread_mutex_unlock(&cb->send_lock);
- return -1;
- }
+ if (cb->sock_fd < 0) {
+ status = wt_callback_init(cb);
+ if (status != 0) {
+ ERROR("write_tsdb plugin: wt_callback_init failed.");
+ pthread_mutex_unlock(&cb->send_lock);
+ return -1;
}
+ }
- status = wt_flush_nolock(timeout, cb);
- pthread_mutex_unlock(&cb->send_lock);
+ status = wt_flush_nolock(timeout, cb);
+ pthread_mutex_unlock(&cb->send_lock);
- return status;
+ return status;
}
-static int wt_format_values(char *ret, size_t ret_len,
- int ds_num, const data_set_t *ds,
- const value_list_t *vl,
- _Bool store_rates)
-{
- size_t offset = 0;
- int status;
- gauge_t *rates = NULL;
-
- assert(0 == strcmp (ds->type, vl->type));
-
- memset(ret, 0, ret_len);
-
-#define BUFFER_ADD(...) do { \
- status = ssnprintf (ret + offset, ret_len - offset, \
- __VA_ARGS__); \
- if (status < 1) \
- { \
- sfree(rates); \
- return -1; \
- } \
- else if (((size_t) status) >= (ret_len - offset)) \
- { \
- sfree(rates); \
- return -1; \
- } \
- else \
- offset += ((size_t) status); \
-} while (0)
-
- if (ds->ds[ds_num].type == DS_TYPE_GAUGE)
- BUFFER_ADD(GAUGE_FORMAT, vl->values[ds_num].gauge);
- else if (store_rates)
- {
- if (rates == NULL)
- rates = uc_get_rate (ds, vl);
- if (rates == NULL)
- {
- WARNING("format_values: "
- "uc_get_rate failed.");
- return -1;
- }
- BUFFER_ADD(GAUGE_FORMAT, rates[ds_num]);
- }
- else if (ds->ds[ds_num].type == DS_TYPE_COUNTER)
- BUFFER_ADD("%llu", vl->values[ds_num].counter);
- else if (ds->ds[ds_num].type == DS_TYPE_DERIVE)
- BUFFER_ADD("%" PRIi64, vl->values[ds_num].derive);
- else if (ds->ds[ds_num].type == DS_TYPE_ABSOLUTE)
- BUFFER_ADD("%" PRIu64, vl->values[ds_num].absolute);
- else
- {
- ERROR("format_values plugin: Unknown data source type: %i",
- ds->ds[ds_num].type);
- sfree(rates);
- return -1;
+static int wt_format_values(char *ret, size_t ret_len, int ds_num,
+ const data_set_t *ds, const value_list_t *vl,
+ _Bool store_rates) {
+ size_t offset = 0;
+ int status;
+ gauge_t *rates = NULL;
+
+ assert(0 == strcmp(ds->type, vl->type));
+
+ memset(ret, 0, ret_len);
+
+#define BUFFER_ADD(...) \
+ do { \
+ status = snprintf(ret + offset, ret_len - offset, __VA_ARGS__); \
+ if (status < 1) { \
+ sfree(rates); \
+ return -1; \
+ } else if (((size_t)status) >= (ret_len - offset)) { \
+ sfree(rates); \
+ return -1; \
+ } else \
+ offset += ((size_t)status); \
+ } while (0)
+
+ if (ds->ds[ds_num].type == DS_TYPE_GAUGE)
+ BUFFER_ADD(GAUGE_FORMAT, vl->values[ds_num].gauge);
+ else if (store_rates) {
+ if (rates == NULL)
+ rates = uc_get_rate(ds, vl);
+ if (rates == NULL) {
+ WARNING("format_values: "
+ "uc_get_rate failed.");
+ return -1;
}
+ BUFFER_ADD(GAUGE_FORMAT, rates[ds_num]);
+ } else if (ds->ds[ds_num].type == DS_TYPE_COUNTER)
+ BUFFER_ADD("%llu", vl->values[ds_num].counter);
+ else if (ds->ds[ds_num].type == DS_TYPE_DERIVE)
+ BUFFER_ADD("%" PRIi64, vl->values[ds_num].derive);
+ else if (ds->ds[ds_num].type == DS_TYPE_ABSOLUTE)
+ BUFFER_ADD("%" PRIu64, vl->values[ds_num].absolute);
+ else {
+ ERROR("format_values plugin: Unknown data source type: %i",
+ ds->ds[ds_num].type);
+ sfree(rates);
+ return -1;
+ }
#undef BUFFER_ADD
- sfree(rates);
- return 0;
+ sfree(rates);
+ return 0;
}
-static int wt_format_name(char *ret, int ret_len,
- const value_list_t *vl,
- const struct wt_callback *cb,
- const char *ds_name)
-{
- int status;
- char *temp = NULL;
- char *prefix = "";
- const char *meta_prefix = "tsdb_prefix";
-
- if (vl->meta) {
- status = meta_data_get_string(vl->meta, meta_prefix, &temp);
- if (status == -ENOENT) {
- /* defaults to empty string */
- } else if (status < 0) {
- sfree(temp);
- return status;
- } else {
- prefix = temp;
- }
+static int wt_format_name(char *ret, int ret_len, const value_list_t *vl,
+ const struct wt_callback *cb, const char *ds_name) {
+ int status;
+ char *temp = NULL;
+ const char *prefix = "";
+ const char *meta_prefix = "tsdb_prefix";
+
+ if (vl->meta) {
+ status = meta_data_get_string(vl->meta, meta_prefix, &temp);
+ if (status == -ENOENT) {
+ /* defaults to empty string */
+ } else if (status < 0) {
+ sfree(temp);
+ return status;
+ } else {
+ prefix = temp;
}
-
- if (ds_name != NULL) {
- if (vl->plugin_instance[0] == '\0') {
- if (vl->type_instance[0] == '\0') {
- ssnprintf(ret, ret_len, "%s%s.%s.%s", prefix, vl->plugin,
- vl->type, ds_name);
- } else {
- ssnprintf(ret, ret_len, "%s%s.%s.%s.%s", prefix, vl->plugin,
- vl->type, vl->type_instance, ds_name);
- }
- } else { /* vl->plugin_instance != "" */
- if (vl->type_instance[0] == '\0') {
- ssnprintf(ret, ret_len, "%s%s.%s.%s.%s", prefix, vl->plugin,
- vl->plugin_instance, vl->type, ds_name);
- } else {
- ssnprintf(ret, ret_len, "%s%s.%s.%s.%s.%s", prefix,
- vl->plugin, vl->plugin_instance, vl->type,
- vl->type_instance, ds_name);
- }
- }
- } else { /* ds_name == NULL */
- if (vl->plugin_instance[0] == '\0') {
- if (vl->type_instance[0] == '\0') {
- ssnprintf(ret, ret_len, "%s%s.%s", prefix, vl->plugin,
- vl->type);
- } else {
- ssnprintf(ret, ret_len, "%s%s.%s.%s", prefix, vl->plugin,
- vl->type_instance, vl->type);
- }
- } else { /* vl->plugin_instance != "" */
- if (vl->type_instance[0] == '\0') {
- ssnprintf(ret, ret_len, "%s%s.%s.%s", prefix, vl->plugin,
- vl->plugin_instance, vl->type);
- } else {
- ssnprintf(ret, ret_len, "%s%s.%s.%s.%s", prefix, vl->plugin,
- vl->plugin_instance, vl->type, vl->type_instance);
- }
- }
+ }
+
+ if (ds_name != NULL) {
+ if (vl->plugin_instance[0] == '\0') {
+ if (vl->type_instance[0] == '\0') {
+ snprintf(ret, ret_len, "%s%s.%s.%s", prefix, vl->plugin, vl->type,
+ ds_name);
+ } else {
+ snprintf(ret, ret_len, "%s%s.%s.%s.%s", prefix, vl->plugin, vl->type,
+ vl->type_instance, ds_name);
+ }
+ } else { /* vl->plugin_instance != "" */
+ if (vl->type_instance[0] == '\0') {
+ snprintf(ret, ret_len, "%s%s.%s.%s.%s", prefix, vl->plugin,
+ vl->plugin_instance, vl->type, ds_name);
+ } else {
+ snprintf(ret, ret_len, "%s%s.%s.%s.%s.%s", prefix, vl->plugin,
+ vl->plugin_instance, vl->type, vl->type_instance, ds_name);
+ }
+ }
+ } else { /* ds_name == NULL */
+ if (vl->plugin_instance[0] == '\0') {
+ if (vl->type_instance[0] == '\0') {
+ snprintf(ret, ret_len, "%s%s.%s", prefix, vl->plugin, vl->type);
+ } else {
+ snprintf(ret, ret_len, "%s%s.%s.%s", prefix, vl->plugin,
+ vl->type_instance, vl->type);
+ }
+ } else { /* vl->plugin_instance != "" */
+ if (vl->type_instance[0] == '\0') {
+ snprintf(ret, ret_len, "%s%s.%s.%s", prefix, vl->plugin,
+ vl->plugin_instance, vl->type);
+ } else {
+ snprintf(ret, ret_len, "%s%s.%s.%s.%s", prefix, vl->plugin,
+ vl->plugin_instance, vl->type, vl->type_instance);
+ }
}
+ }
- sfree(temp);
- return 0;
+ sfree(temp);
+ return 0;
}
-static int wt_send_message (const char* key, const char* value,
- cdtime_t time, struct wt_callback *cb,
- const char* host, meta_data_t *md)
-{
- int status;
- int message_len;
- char *temp = NULL;
- char *tags = "";
- char message[1024];
- char *host_tags = cb->host_tags ? cb->host_tags : "";
- const char *meta_tsdb = "tsdb_tags";
-
- /* skip if value is NaN */
- if (value[0] == 'n')
- return 0;
-
- if (md) {
- status = meta_data_get_string(md, meta_tsdb, &temp);
- if (status == -ENOENT) {
- /* defaults to empty string */
- } else if (status < 0) {
- ERROR("write_tsdb plugin: tags metadata get failure");
- sfree(temp);
- pthread_mutex_unlock(&cb->send_lock);
- return status;
- } else {
- tags = temp;
- }
- }
+static int wt_send_message(const char *key, const char *value, cdtime_t time,
+ struct wt_callback *cb, const char *host,
+ meta_data_t *md) {
+ int status;
+ size_t message_len;
+ char *temp = NULL;
+ const char *tags = "";
+ char message[1024];
+ const char *host_tags = cb->host_tags ? cb->host_tags : "";
+ const char *meta_tsdb = "tsdb_tags";
+
+ /* skip if value is NaN */
+ if (value[0] == 'n')
+ return 0;
- message_len = ssnprintf (message,
- sizeof(message),
- "put %s %.0f %s fqdn=%s %s %s\r\n",
- key,
- CDTIME_T_TO_DOUBLE(time),
- value,
- host,
- tags,
- host_tags);
-
- sfree(temp);
-
- if (message_len >= sizeof(message)) {
- ERROR("write_tsdb plugin: message buffer too small: "
- "Need %d bytes.", message_len + 1);
- return -1;
+ if (md) {
+ status = meta_data_get_string(md, meta_tsdb, &temp);
+ if (status == -ENOENT) {
+ /* defaults to empty string */
+ } else if (status < 0) {
+ ERROR("write_tsdb plugin: tags metadata get failure");
+ sfree(temp);
+ pthread_mutex_unlock(&cb->send_lock);
+ return status;
+ } else {
+ tags = temp;
}
-
- pthread_mutex_lock(&cb->send_lock);
-
- if (cb->sock_fd < 0)
- {
- status = wt_callback_init(cb);
- if (status != 0)
- {
- ERROR("write_tsdb plugin: wt_callback_init failed.");
- pthread_mutex_unlock(&cb->send_lock);
- return -1;
- }
+ }
+
+ status =
+ snprintf(message, sizeof(message), "put %s %.0f %s fqdn=%s %s %s\r\n",
+ key, CDTIME_T_TO_DOUBLE(time), value, host, tags, host_tags);
+ sfree(temp);
+ if (status < 0)
+ return -1;
+ message_len = (size_t)status;
+
+ if (message_len >= sizeof(message)) {
+ ERROR("write_tsdb plugin: message buffer too small: "
+ "Need %zu bytes.",
+ message_len + 1);
+ return -1;
+ }
+
+ pthread_mutex_lock(&cb->send_lock);
+
+ if (cb->sock_fd < 0) {
+ status = wt_callback_init(cb);
+ if (status != 0) {
+ ERROR("write_tsdb plugin: wt_callback_init failed.");
+ pthread_mutex_unlock(&cb->send_lock);
+ return -1;
}
+ }
- if (message_len >= cb->send_buf_free)
- {
- status = wt_flush_nolock(0, cb);
- if (status != 0)
- {
- pthread_mutex_unlock(&cb->send_lock);
- return status;
- }
+ if (message_len >= cb->send_buf_free) {
+ status = wt_flush_nolock(0, cb);
+ if (status != 0) {
+ pthread_mutex_unlock(&cb->send_lock);
+ return status;
}
+ }
- /* Assert that we have enough space for this message. */
- assert(message_len < cb->send_buf_free);
+ /* Assert that we have enough space for this message. */
+ assert(message_len < cb->send_buf_free);
- /* `message_len + 1' because `message_len' does not include the
- * trailing null byte. Neither does `send_buffer_fill'. */
- memcpy(cb->send_buf + cb->send_buf_fill,
- message, message_len + 1);
- cb->send_buf_fill += message_len;
- cb->send_buf_free -= message_len;
+ /* `message_len + 1' because `message_len' does not include the
+ * trailing null byte. Neither does `send_buffer_fill'. */
+ memcpy(cb->send_buf + cb->send_buf_fill, message, message_len + 1);
+ cb->send_buf_fill += message_len;
+ cb->send_buf_free -= message_len;
- DEBUG("write_tsdb plugin: [%s]:%s buf %zu/%zu (%.1f %%) \"%s\"",
- cb->node,
- cb->service,
- cb->send_buf_fill, sizeof(cb->send_buf),
- 100.0 * ((double) cb->send_buf_fill) /
- ((double) sizeof(cb->send_buf)),
- message);
+ DEBUG("write_tsdb plugin: [%s]:%s buf %zu/%zu (%.1f %%) \"%s\"", cb->node,
+ cb->service, cb->send_buf_fill, sizeof(cb->send_buf),
+ 100.0 * ((double)cb->send_buf_fill) / ((double)sizeof(cb->send_buf)),
+ message);
- pthread_mutex_unlock(&cb->send_lock);
+ pthread_mutex_unlock(&cb->send_lock);
- return 0;
+ return 0;
}
static int wt_write_messages(const data_set_t *ds, const value_list_t *vl,
- struct wt_callback *cb)
-{
- char key[10*DATA_MAX_NAME_LEN];
- char values[512];
-
- int status, i;
-
- if (0 != strcmp(ds->type, vl->type))
- {
- ERROR("write_tsdb plugin: DS type does not match "
- "value list type");
- return -1;
+ struct wt_callback *cb) {
+ char key[10 * DATA_MAX_NAME_LEN];
+ char values[512];
+
+ int status;
+
+ if (0 != strcmp(ds->type, vl->type)) {
+ ERROR("write_tsdb plugin: DS type does not match "
+ "value list type");
+ return -1;
+ }
+
+ for (size_t i = 0; i < ds->ds_num; i++) {
+ const char *ds_name = NULL;
+
+ if (cb->always_append_ds || (ds->ds_num > 1))
+ ds_name = ds->ds[i].name;
+
+ /* Copy the identifier to 'key' and escape it. */
+ status = wt_format_name(key, sizeof(key), vl, cb, ds_name);
+ if (status != 0) {
+ ERROR("write_tsdb plugin: error with format_name");
+ return status;
}
- for (i = 0; i < ds->ds_num; i++)
- {
- const char *ds_name = NULL;
-
- if (cb->always_append_ds || (ds->ds_num > 1))
- ds_name = ds->ds[i].name;
-
- /* Copy the identifier to 'key' and escape it. */
- status = wt_format_name(key, sizeof(key), vl, cb, ds_name);
- if (status != 0)
- {
- ERROR("write_tsdb plugin: error with format_name");
- return status;
- }
-
- escape_string(key, sizeof(key));
- /* Convert the values to an ASCII representation and put that into
- * 'values'. */
- status = wt_format_values(values, sizeof(values), i, ds, vl,
- cb->store_rates);
- if (status != 0)
- {
- ERROR("write_tsdb plugin: error with "
- "wt_format_values");
- return status;
- }
-
- /* Send the message to tsdb */
- status = wt_send_message(key, values, vl->time, cb, vl->host, vl->meta);
- if (status != 0)
- {
- ERROR("write_tsdb plugin: error with "
- "wt_send_message");
- return status;
- }
+ escape_string(key, sizeof(key));
+ /* Convert the values to an ASCII representation and put that into
+ * 'values'. */
+ status =
+ wt_format_values(values, sizeof(values), i, ds, vl, cb->store_rates);
+ if (status != 0) {
+ ERROR("write_tsdb plugin: error with "
+ "wt_format_values");
+ return status;
}
- return 0;
+ /* Send the message to tsdb */
+ status = wt_send_message(key, values, vl->time, cb, vl->host, vl->meta);
+ if (status != 0) {
+ ERROR("write_tsdb plugin: error with "
+ "wt_send_message");
+ return status;
+ }
+ }
+
+ return 0;
}
static int wt_write(const data_set_t *ds, const value_list_t *vl,
- user_data_t *user_data)
-{
- struct wt_callback *cb;
- int status;
+ user_data_t *user_data) {
+ struct wt_callback *cb;
+ int status;
- if (user_data == NULL)
- return EINVAL;
+ if (user_data == NULL)
+ return EINVAL;
- cb = user_data->data;
+ cb = user_data->data;
- status = wt_write_messages(ds, vl, cb);
+ status = wt_write_messages(ds, vl, cb);
- return status;
+ return status;
}
-static int wt_config_tsd(oconfig_item_t *ci)
-{
- struct wt_callback *cb;
- user_data_t user_data;
- char callback_name[DATA_MAX_NAME_LEN];
- int i;
-
- cb = malloc(sizeof(*cb));
- if (cb == NULL)
- {
- ERROR("write_tsdb plugin: malloc failed.");
- return -1;
- }
- memset(cb, 0, sizeof(*cb));
- cb->sock_fd = -1;
- cb->node = NULL;
- cb->service = NULL;
- cb->host_tags = NULL;
- cb->store_rates = 0;
-
- pthread_mutex_init (&cb->send_lock, NULL);
-
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if (strcasecmp("Host", child->key) == 0)
- cf_util_get_string(child, &cb->node);
- else if (strcasecmp("Port", child->key) == 0)
- cf_util_get_service(child, &cb->service);
- else if (strcasecmp("HostTags", child->key) == 0)
- cf_util_get_string(child, &cb->host_tags);
- else if (strcasecmp("StoreRates", child->key) == 0)
- cf_util_get_boolean(child, &cb->store_rates);
- else if (strcasecmp("AlwaysAppendDS", child->key) == 0)
- cf_util_get_boolean(child, &cb->always_append_ds);
- else
- {
- ERROR("write_tsdb plugin: Invalid configuration "
- "option: %s.", child->key);
- }
+static int wt_config_tsd(oconfig_item_t *ci) {
+ struct wt_callback *cb;
+ char callback_name[DATA_MAX_NAME_LEN];
+
+ cb = calloc(1, sizeof(*cb));
+ if (cb == NULL) {
+ ERROR("write_tsdb plugin: calloc failed.");
+ return -1;
+ }
+ cb->sock_fd = -1;
+ cb->connect_failed_log_enabled = 1;
+ cb->next_random_ttl = new_random_ttl();
+
+ pthread_mutex_init(&cb->send_lock, NULL);
+
+ for (int i = 0; i < ci->children_num; i++) {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp("Host", child->key) == 0)
+ cf_util_get_string(child, &cb->node);
+ else if (strcasecmp("Port", child->key) == 0)
+ cf_util_get_service(child, &cb->service);
+ else if (strcasecmp("HostTags", child->key) == 0)
+ cf_util_get_string(child, &cb->host_tags);
+ else if (strcasecmp("StoreRates", child->key) == 0)
+ cf_util_get_boolean(child, &cb->store_rates);
+ else if (strcasecmp("AlwaysAppendDS", child->key) == 0)
+ cf_util_get_boolean(child, &cb->always_append_ds);
+ else {
+ ERROR("write_tsdb plugin: Invalid configuration "
+ "option: %s.",
+ child->key);
}
+ }
- ssnprintf(callback_name, sizeof(callback_name), "write_tsdb/%s/%s",
- cb->node != NULL ? cb->node : WT_DEFAULT_NODE,
- cb->service != NULL ? cb->service : WT_DEFAULT_SERVICE);
+ snprintf(callback_name, sizeof(callback_name), "write_tsdb/%s/%s",
+ cb->node != NULL ? cb->node : WT_DEFAULT_NODE,
+ cb->service != NULL ? cb->service : WT_DEFAULT_SERVICE);
- memset(&user_data, 0, sizeof(user_data));
- user_data.data = cb;
- user_data.free_func = wt_callback_free;
- plugin_register_write(callback_name, wt_write, &user_data);
+ user_data_t user_data = {.data = cb, .free_func = wt_callback_free};
- user_data.free_func = NULL;
- plugin_register_flush(callback_name, wt_flush, &user_data);
+ plugin_register_write(callback_name, wt_write, &user_data);
- return 0;
+ user_data.free_func = NULL;
+ plugin_register_flush(callback_name, wt_flush, &user_data);
+
+ return 0;
}
-static int wt_config(oconfig_item_t *ci)
-{
- int i;
-
- for (i = 0; i < ci->children_num; i++)
- {
- oconfig_item_t *child = ci->children + i;
-
- if (strcasecmp("Node", child->key) == 0)
- wt_config_tsd(child);
- else
- {
- ERROR("write_tsdb plugin: Invalid configuration "
- "option: %s.", child->key);
- }
+static int wt_config(oconfig_item_t *ci) {
+ if ((resolve_interval == 0) && (resolve_jitter == 0))
+ resolve_interval = resolve_jitter = plugin_get_interval();
+
+ for (int i = 0; i < ci->children_num; i++) {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp("Node", child->key) == 0)
+ wt_config_tsd(child);
+ else if (strcasecmp("ResolveInterval", child->key) == 0)
+ cf_util_get_cdtime(child, &resolve_interval);
+ else if (strcasecmp("ResolveJitter", child->key) == 0)
+ cf_util_get_cdtime(child, &resolve_jitter);
+ else {
+ ERROR("write_tsdb plugin: Invalid configuration "
+ "option: %s.",
+ child->key);
}
+ }
- return 0;
+ return 0;
}
-void module_register(void)
-{
- plugin_register_complex_config("write_tsdb", wt_config);
+void module_register(void) {
+ plugin_register_complex_config("write_tsdb", wt_config);
}
-
-/* vim: set sw=4 ts=4 sts=4 tw=78 et : */
projects / collectd.git / blobdiff