#include "collectd.h"
-#include "plugin.h"
#include "common.h"
+#include "plugin.h"
#include "utils_cmd_putval.h"
#include "utils_format_graphite.h"
#include "utils_format_json.h"
+#include "utils_random.h"
-#include <stdint.h>
-#include <librdkafka/rdkafka.h>
#include <errno.h>
+#include <librdkafka/rdkafka.h>
+#include <stdint.h>
struct kafka_topic_context {
-#define KAFKA_FORMAT_JSON 0
-#define KAFKA_FORMAT_COMMAND 1
-#define KAFKA_FORMAT_GRAPHITE 2
- uint8_t format;
- unsigned int graphite_flags;
- _Bool store_rates;
- rd_kafka_topic_conf_t *conf;
- rd_kafka_topic_t *topic;
- rd_kafka_conf_t *kafka_conf;
- rd_kafka_t *kafka;
- char *key;
- char *prefix;
- char *postfix;
- char escape_char;
- char *topic_name;
- pthread_mutex_t lock;
+#define KAFKA_FORMAT_JSON 0
+#define KAFKA_FORMAT_COMMAND 1
+#define KAFKA_FORMAT_GRAPHITE 2
+ uint8_t format;
+ unsigned int graphite_flags;
+ _Bool store_rates;
+ rd_kafka_topic_conf_t *conf;
+ rd_kafka_topic_t *topic;
+ rd_kafka_conf_t *kafka_conf;
+ rd_kafka_t *kafka;
+ char *key;
+ char *prefix;
+ char *postfix;
+ char escape_char;
+ char *topic_name;
+ pthread_mutex_t lock;
};
static int kafka_handle(struct kafka_topic_context *);
static int32_t kafka_partition(const rd_kafka_topic_t *, const void *, size_t,
int32_t, void *, void *);
-#if defined HAVE_LIBRDKAFKA_LOGGER || defined HAVE_LIBRDKAFKA_LOG_CB
+/* Version 0.9.0 of librdkafka deprecates rd_kafka_set_logger() in favor of
+ * rd_kafka_conf_set_log_cb(). This is to make sure we're not using the
+ * deprecated function. */
+#ifdef HAVE_LIBRDKAFKA_LOG_CB
+#undef HAVE_LIBRDKAFKA_LOGGER
+#endif
+
+#if defined(HAVE_LIBRDKAFKA_LOGGER) || defined(HAVE_LIBRDKAFKA_LOG_CB)
static void kafka_log(const rd_kafka_t *, int, const char *, const char *);
-static void kafka_log(const rd_kafka_t *rkt, int level,
- const char *fac, const char *msg)
-{
- plugin_log(level, "%s", msg);
+static void kafka_log(const rd_kafka_t *rkt, int level, const char *fac,
+ const char *msg) {
+ plugin_log(level, "%s", msg);
}
#endif
-static uint32_t kafka_hash(const char *keydata, size_t keylen)
-{
- uint32_t hash = 5381;
- for (; keylen > 0; keylen--)
- hash = ((hash << 5) + hash) + keydata[keylen - 1];
- return hash;
+static rd_kafka_resp_err_t kafka_error() {
+#if RD_KAFKA_VERSION >= 0x000b00ff
+ return rd_kafka_last_error();
+#else
+ return rd_kafka_errno2err(errno);
+#endif
+}
+
+static uint32_t kafka_hash(const char *keydata, size_t keylen) {
+ uint32_t hash = 5381;
+ for (; keylen > 0; keylen--)
+ hash = ((hash << 5) + hash) + keydata[keylen - 1];
+ return hash;
}
/* 31 bit -> 4 byte -> 8 byte hex string + null byte */
#define KAFKA_RANDOM_KEY_SIZE 9
-#define KAFKA_RANDOM_KEY_BUFFER (char[KAFKA_RANDOM_KEY_SIZE]) {""}
-static char *kafka_random_key(char buffer[static KAFKA_RANDOM_KEY_SIZE])
-{
- ssnprintf(buffer, KAFKA_RANDOM_KEY_SIZE, "%08lX", (unsigned long) mrand48());
- return buffer;
+#define KAFKA_RANDOM_KEY_BUFFER \
+ (char[KAFKA_RANDOM_KEY_SIZE]) { "" }
+static char *kafka_random_key(char buffer[static KAFKA_RANDOM_KEY_SIZE]) {
+ snprintf(buffer, KAFKA_RANDOM_KEY_SIZE, "%08" PRIX32, cdrand_u());
+ return buffer;
}
-static int32_t kafka_partition(const rd_kafka_topic_t *rkt,
- const void *keydata, size_t keylen,
- int32_t partition_cnt, void *p, void *m)
-{
- uint32_t key = kafka_hash(keydata, keylen);
- uint32_t target = key % partition_cnt;
- int32_t i = partition_cnt;
-
- while (--i > 0 && !rd_kafka_topic_partition_available(rkt, target)) {
- target = (target + 1) % partition_cnt;
- }
- return target;
+static int32_t kafka_partition(const rd_kafka_topic_t *rkt, const void *keydata,
+ size_t keylen, int32_t partition_cnt, void *p,
+ void *m) {
+ uint32_t key = kafka_hash(keydata, keylen);
+ uint32_t target = key % partition_cnt;
+ int32_t i = partition_cnt;
+
+ while (--i > 0 && !rd_kafka_topic_partition_available(rkt, target)) {
+ target = (target + 1) % partition_cnt;
+ }
+ return target;
}
static int kafka_handle(struct kafka_topic_context *ctx) /* {{{ */
{
- char errbuf[1024];
- rd_kafka_conf_t *conf;
- rd_kafka_topic_conf_t *topic_conf;
+ char errbuf[1024];
+ rd_kafka_conf_t *conf;
+ rd_kafka_topic_conf_t *topic_conf;
- if (ctx->kafka != NULL && ctx->topic != NULL)
- return(0);
+ if (ctx->kafka != NULL && ctx->topic != NULL)
+ return 0;
- if (ctx->kafka == NULL) {
- if ((conf = rd_kafka_conf_dup(ctx->kafka_conf)) == NULL) {
- ERROR("write_kafka plugin: cannot duplicate kafka config");
- return(1);
- }
+ if (ctx->kafka == NULL) {
+ if ((conf = rd_kafka_conf_dup(ctx->kafka_conf)) == NULL) {
+ ERROR("write_kafka plugin: cannot duplicate kafka config");
+ return 1;
+ }
- if ((ctx->kafka = rd_kafka_new(RD_KAFKA_PRODUCER, conf,
- errbuf, sizeof(errbuf))) == NULL) {
- ERROR("write_kafka plugin: cannot create kafka handle.");
- return 1;
- }
+ if ((ctx->kafka = rd_kafka_new(RD_KAFKA_PRODUCER, conf, errbuf,
+ sizeof(errbuf))) == NULL) {
+ ERROR("write_kafka plugin: cannot create kafka handle.");
+ return 1;
+ }
- rd_kafka_conf_destroy(ctx->kafka_conf);
- ctx->kafka_conf = NULL;
+ rd_kafka_conf_destroy(ctx->kafka_conf);
+ ctx->kafka_conf = NULL;
- INFO ("write_kafka plugin: created KAFKA handle : %s", rd_kafka_name(ctx->kafka));
+ INFO("write_kafka plugin: created KAFKA handle : %s",
+ rd_kafka_name(ctx->kafka));
#if defined(HAVE_LIBRDKAFKA_LOGGER) && !defined(HAVE_LIBRDKAFKA_LOG_CB)
- rd_kafka_set_logger(ctx->kafka, kafka_log);
+ rd_kafka_set_logger(ctx->kafka, kafka_log);
#endif
+ }
+
+ if (ctx->topic == NULL) {
+ if ((topic_conf = rd_kafka_topic_conf_dup(ctx->conf)) == NULL) {
+ ERROR("write_kafka plugin: cannot duplicate kafka topic config");
+ return 1;
}
- if (ctx->topic == NULL ) {
- if ((topic_conf = rd_kafka_topic_conf_dup(ctx->conf)) == NULL) {
- ERROR("write_kafka plugin: cannot duplicate kafka topic config");
- return 1;
- }
+ if ((ctx->topic = rd_kafka_topic_new(ctx->kafka, ctx->topic_name,
+ topic_conf)) == NULL) {
+ ERROR("write_kafka plugin: cannot create topic : %s\n",
+ rd_kafka_err2str(kafka_error()));
+ return errno;
+ }
- if ((ctx->topic = rd_kafka_topic_new(ctx->kafka, ctx->topic_name,
- topic_conf)) == NULL) {
- ERROR("write_kafka plugin: cannot create topic : %s\n",
- rd_kafka_err2str(rd_kafka_errno2err(errno)));
- return errno;
- }
+ rd_kafka_topic_conf_destroy(ctx->conf);
+ ctx->conf = NULL;
- rd_kafka_topic_conf_destroy(ctx->conf);
- ctx->conf = NULL;
+ INFO("write_kafka plugin: handle created for topic : %s",
+ rd_kafka_topic_name(ctx->topic));
+ }
- INFO ("write_kafka plugin: handle created for topic : %s", rd_kafka_topic_name(ctx->topic));
- }
-
- return(0);
+ return 0;
} /* }}} int kafka_handle */
static int kafka_write(const data_set_t *ds, /* {{{ */
- const value_list_t *vl,
- user_data_t *ud)
-{
- int status = 0;
- void *key;
- size_t keylen = 0;
- char buffer[8192];
- size_t bfree = sizeof(buffer);
- size_t bfill = 0;
- size_t blen = 0;
- struct kafka_topic_context *ctx = ud->data;
-
- if ((ds == NULL) || (vl == NULL) || (ctx == NULL))
- return EINVAL;
-
- pthread_mutex_lock (&ctx->lock);
- status = kafka_handle(ctx);
- pthread_mutex_unlock (&ctx->lock);
- if( status != 0 )
- return status;
-
- bzero(buffer, sizeof(buffer));
-
- switch (ctx->format) {
- case KAFKA_FORMAT_COMMAND:
- status = create_putval(buffer, sizeof(buffer), ds, vl);
- if (status != 0) {
- ERROR("write_kafka plugin: create_putval failed with status %i.",
- status);
- return status;
- }
- blen = strlen(buffer);
- break;
- case KAFKA_FORMAT_JSON:
- format_json_initialize(buffer, &bfill, &bfree);
- format_json_value_list(buffer, &bfill, &bfree, ds, vl,
- ctx->store_rates);
- format_json_finalize(buffer, &bfill, &bfree);
- blen = strlen(buffer);
- break;
- case KAFKA_FORMAT_GRAPHITE:
- status = format_graphite(buffer, sizeof(buffer), ds, vl,
- ctx->prefix, ctx->postfix, ctx->escape_char,
- ctx->graphite_flags);
- if (status != 0) {
- ERROR("write_kafka plugin: format_graphite failed with status %i.",
- status);
- return status;
- }
- blen = strlen(buffer);
- break;
- default:
- ERROR("write_kafka plugin: invalid format %i.", ctx->format);
- return -1;
+ const value_list_t *vl, user_data_t *ud) {
+ int status = 0;
+ void *key;
+ size_t keylen = 0;
+ char buffer[8192];
+ size_t bfree = sizeof(buffer);
+ size_t bfill = 0;
+ size_t blen = 0;
+ struct kafka_topic_context *ctx = ud->data;
+
+ if ((ds == NULL) || (vl == NULL) || (ctx == NULL))
+ return EINVAL;
+
+ pthread_mutex_lock(&ctx->lock);
+ status = kafka_handle(ctx);
+ pthread_mutex_unlock(&ctx->lock);
+ if (status != 0)
+ return status;
+
+ bzero(buffer, sizeof(buffer));
+
+ switch (ctx->format) {
+ case KAFKA_FORMAT_COMMAND:
+ status = cmd_create_putval(buffer, sizeof(buffer), ds, vl);
+ if (status != 0) {
+ ERROR("write_kafka plugin: cmd_create_putval failed with status %i.",
+ status);
+ return status;
}
+ blen = strlen(buffer);
+ break;
+ case KAFKA_FORMAT_JSON:
+ format_json_initialize(buffer, &bfill, &bfree);
+ format_json_value_list(buffer, &bfill, &bfree, ds, vl, ctx->store_rates);
+ format_json_finalize(buffer, &bfill, &bfree);
+ blen = strlen(buffer);
+ break;
+ case KAFKA_FORMAT_GRAPHITE:
+ status =
+ format_graphite(buffer, sizeof(buffer), ds, vl, ctx->prefix,
+ ctx->postfix, ctx->escape_char, ctx->graphite_flags);
+ if (status != 0) {
+ ERROR("write_kafka plugin: format_graphite failed with status %i.",
+ status);
+ return status;
+ }
+ blen = strlen(buffer);
+ break;
+ default:
+ ERROR("write_kafka plugin: invalid format %i.", ctx->format);
+ return -1;
+ }
- key = (ctx->key != NULL)
- ? ctx->key
- : kafka_random_key(KAFKA_RANDOM_KEY_BUFFER);
- keylen = strlen (key);
+ key =
+ (ctx->key != NULL) ? ctx->key : kafka_random_key(KAFKA_RANDOM_KEY_BUFFER);
+ keylen = strlen(key);
- rd_kafka_produce(ctx->topic, RD_KAFKA_PARTITION_UA,
- RD_KAFKA_MSG_F_COPY, buffer, blen,
- key, keylen, NULL);
+ rd_kafka_produce(ctx->topic, RD_KAFKA_PARTITION_UA, RD_KAFKA_MSG_F_COPY,
+ buffer, blen, key, keylen, NULL);
- return status;
+ return status;
} /* }}} int kafka_write */
static void kafka_topic_context_free(void *p) /* {{{ */
{
- struct kafka_topic_context *ctx = p;
-
- if (ctx == NULL)
- return;
-
- if (ctx->topic_name != NULL)
- sfree(ctx->topic_name);
- if (ctx->topic != NULL)
- rd_kafka_topic_destroy(ctx->topic);
- if (ctx->conf != NULL)
- rd_kafka_topic_conf_destroy(ctx->conf);
- if (ctx->kafka_conf != NULL)
- rd_kafka_conf_destroy(ctx->kafka_conf);
- if (ctx->kafka != NULL)
- rd_kafka_destroy(ctx->kafka);
-
- sfree(ctx);
+ struct kafka_topic_context *ctx = p;
+
+ if (ctx == NULL)
+ return;
+
+ if (ctx->topic_name != NULL)
+ sfree(ctx->topic_name);
+ if (ctx->topic != NULL)
+ rd_kafka_topic_destroy(ctx->topic);
+ if (ctx->conf != NULL)
+ rd_kafka_topic_conf_destroy(ctx->conf);
+ if (ctx->kafka_conf != NULL)
+ rd_kafka_conf_destroy(ctx->kafka_conf);
+ if (ctx->kafka != NULL)
+ rd_kafka_destroy(ctx->kafka);
+
+ sfree(ctx);
} /* }}} void kafka_topic_context_free */
-static void kafka_config_topic(rd_kafka_conf_t *conf, oconfig_item_t *ci) /* {{{ */
+static void kafka_config_topic(rd_kafka_conf_t *conf,
+ oconfig_item_t *ci) /* {{{ */
{
- int status;
- struct kafka_topic_context *tctx;
- char *key = NULL;
- char *val;
- char callback_name[DATA_MAX_NAME_LEN];
- char errbuf[1024];
- oconfig_item_t *child;
- rd_kafka_conf_res_t ret;
-
- if ((tctx = calloc(1, sizeof (*tctx))) == NULL) {
- ERROR ("write_kafka plugin: calloc failed.");
- return;
- }
+ int status;
+ struct kafka_topic_context *tctx;
+ char *key = NULL;
+ char *val;
+ char callback_name[DATA_MAX_NAME_LEN];
+ char errbuf[1024];
+ oconfig_item_t *child;
+ rd_kafka_conf_res_t ret;
+
+ if ((tctx = calloc(1, sizeof(*tctx))) == NULL) {
+ ERROR("write_kafka plugin: calloc failed.");
+ return;
+ }
- tctx->escape_char = '.';
- tctx->store_rates = 1;
- tctx->format = KAFKA_FORMAT_JSON;
- tctx->key = NULL;
+ tctx->escape_char = '.';
+ tctx->store_rates = 1;
+ tctx->format = KAFKA_FORMAT_JSON;
+ tctx->key = NULL;
- if ((tctx->kafka_conf = rd_kafka_conf_dup(conf)) == NULL) {
- sfree(tctx);
- ERROR("write_kafka plugin: cannot allocate memory for kafka config");
- return;
- }
+ if ((tctx->kafka_conf = rd_kafka_conf_dup(conf)) == NULL) {
+ sfree(tctx);
+ ERROR("write_kafka plugin: cannot allocate memory for kafka config");
+ return;
+ }
#ifdef HAVE_LIBRDKAFKA_LOG_CB
- rd_kafka_conf_set_log_cb(tctx->kafka_conf, kafka_log);
+ rd_kafka_conf_set_log_cb(tctx->kafka_conf, kafka_log);
#endif
- if ((tctx->conf = rd_kafka_topic_conf_new()) == NULL) {
- rd_kafka_conf_destroy(tctx->kafka_conf);
- sfree(tctx);
- ERROR ("write_kafka plugin: cannot create topic configuration.");
- return;
- }
-
- if (ci->values_num != 1) {
- WARNING("kafka topic name needed.");
+ if ((tctx->conf = rd_kafka_topic_conf_new()) == NULL) {
+ rd_kafka_conf_destroy(tctx->kafka_conf);
+ sfree(tctx);
+ ERROR("write_kafka plugin: cannot create topic configuration.");
+ return;
+ }
+
+ if (ci->values_num != 1) {
+ WARNING("kafka topic name needed.");
+ goto errout;
+ }
+
+ if (ci->values[0].type != OCONFIG_TYPE_STRING) {
+ WARNING("kafka topic needs a string argument.");
+ goto errout;
+ }
+
+ if ((tctx->topic_name = strdup(ci->values[0].value.string)) == NULL) {
+ ERROR("write_kafka plugin: cannot copy topic name.");
+ goto errout;
+ }
+
+ for (int 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("Property", child->key) == 0) {
+ if (child->values_num != 2) {
+ WARNING("kafka properties need both a key and a value.");
goto errout;
- }
-
- if (ci->values[0].type != OCONFIG_TYPE_STRING) {
- WARNING("kafka topic needs a string argument.");
+ }
+ if (child->values[0].type != OCONFIG_TYPE_STRING ||
+ child->values[1].type != OCONFIG_TYPE_STRING) {
+ WARNING("kafka properties needs string arguments.");
goto errout;
- }
-
- if ((tctx->topic_name = strdup(ci->values[0].value.string)) == NULL) {
- ERROR("write_kafka plugin: cannot copy topic name.");
+ }
+ key = child->values[0].value.string;
+ val = child->values[1].value.string;
+ ret =
+ rd_kafka_topic_conf_set(tctx->conf, key, val, errbuf, sizeof(errbuf));
+ if (ret != RD_KAFKA_CONF_OK) {
+ WARNING("cannot set kafka topic property %s to %s: %s.", key, val,
+ errbuf);
goto errout;
- }
-
- for (int 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 ("Property", child->key) == 0) {
- if (child->values_num != 2) {
- WARNING("kafka properties need both a key and a value.");
- goto errout;
- }
- if (child->values[0].type != OCONFIG_TYPE_STRING ||
- child->values[1].type != OCONFIG_TYPE_STRING) {
- WARNING("kafka properties needs string arguments.");
- goto errout;
- }
- key = child->values[0].value.string;
- val = child->values[1].value.string;
- ret = rd_kafka_topic_conf_set(tctx->conf,key, val,
- errbuf, sizeof(errbuf));
- if (ret != RD_KAFKA_CONF_OK) {
- WARNING("cannot set kafka topic property %s to %s: %s.",
- key, val, errbuf);
- goto errout;
- }
-
- } else if (strcasecmp ("Key", child->key) == 0) {
- if (cf_util_get_string (child, &tctx->key) != 0)
- continue;
- if (strcasecmp ("Random", tctx->key) == 0) {
- sfree(tctx->key);
- tctx->key = strdup (kafka_random_key (KAFKA_RANDOM_KEY_BUFFER));
- }
- } else if (strcasecmp ("Format", child->key) == 0) {
- status = cf_util_get_string(child, &key);
- if (status != 0)
- goto errout;
-
- assert(key != NULL);
-
- if (strcasecmp(key, "Command") == 0) {
- tctx->format = KAFKA_FORMAT_COMMAND;
-
- } else if (strcasecmp(key, "Graphite") == 0) {
- tctx->format = KAFKA_FORMAT_GRAPHITE;
-
- } else if (strcasecmp(key, "Json") == 0) {
- tctx->format = KAFKA_FORMAT_JSON;
-
- } else {
- WARNING ("write_kafka plugin: Invalid format string: %s",
- key);
- }
-
- sfree(key);
-
- } else if (strcasecmp ("StoreRates", child->key) == 0) {
- status = cf_util_get_boolean (child, &tctx->store_rates);
- (void) cf_util_get_flag (child, &tctx->graphite_flags,
- GRAPHITE_STORE_RATES);
-
- } else if (strcasecmp ("GraphiteSeparateInstances", child->key) == 0) {
- status = cf_util_get_flag (child, &tctx->graphite_flags,
- GRAPHITE_SEPARATE_INSTANCES);
-
- } else if (strcasecmp ("GraphiteAlwaysAppendDS", child->key) == 0) {
- status = cf_util_get_flag (child, &tctx->graphite_flags,
- GRAPHITE_ALWAYS_APPEND_DS);
-
- } else if (strcasecmp ("GraphitePrefix", child->key) == 0) {
- status = cf_util_get_string (child, &tctx->prefix);
- } else if (strcasecmp ("GraphitePostfix", child->key) == 0) {
- status = cf_util_get_string (child, &tctx->postfix);
- } else if (strcasecmp ("GraphiteEscapeChar", child->key) == 0) {
- char *tmp_buff = NULL;
- status = cf_util_get_string (child, &tmp_buff);
- if (strlen (tmp_buff) > 1)
- WARNING ("write_kafka plugin: The option \"GraphiteEscapeChar\" handles "
- "only one character. Others will be ignored.");
- tctx->escape_char = tmp_buff[0];
- sfree (tmp_buff);
- } else {
- WARNING ("write_kafka plugin: Invalid directive: %s.", child->key);
- }
-
- if (status != 0)
- break;
- }
-
- rd_kafka_topic_conf_set_partitioner_cb(tctx->conf, kafka_partition);
- rd_kafka_topic_conf_set_opaque(tctx->conf, tctx);
-
- ssnprintf(callback_name, sizeof(callback_name),
- "write_kafka/%s", tctx->topic_name);
-
- user_data_t ud = {
- .data = tctx,
- .free_func = kafka_topic_context_free
- };
-
- status = plugin_register_write (callback_name, kafka_write, &ud);
- if (status != 0) {
- WARNING ("write_kafka plugin: plugin_register_write (\"%s\") "
- "failed with status %i.",
- callback_name, status);
+ }
+
+ } else if (strcasecmp("Key", child->key) == 0) {
+ if (cf_util_get_string(child, &tctx->key) != 0)
+ continue;
+ if (strcasecmp("Random", tctx->key) == 0) {
+ sfree(tctx->key);
+ tctx->key = strdup(kafka_random_key(KAFKA_RANDOM_KEY_BUFFER));
+ }
+ } else if (strcasecmp("Format", child->key) == 0) {
+ status = cf_util_get_string(child, &key);
+ if (status != 0)
goto errout;
- }
- pthread_mutex_init (&tctx->lock, /* attr = */ NULL);
+ assert(key != NULL);
+
+ if (strcasecmp(key, "Command") == 0) {
+ tctx->format = KAFKA_FORMAT_COMMAND;
+
+ } else if (strcasecmp(key, "Graphite") == 0) {
+ tctx->format = KAFKA_FORMAT_GRAPHITE;
+
+ } else if (strcasecmp(key, "Json") == 0) {
+ tctx->format = KAFKA_FORMAT_JSON;
+
+ } else {
+ WARNING("write_kafka plugin: Invalid format string: %s", key);
+ }
+
+ sfree(key);
+
+ } else if (strcasecmp("StoreRates", child->key) == 0) {
+ status = cf_util_get_boolean(child, &tctx->store_rates);
+ (void)cf_util_get_flag(child, &tctx->graphite_flags,
+ GRAPHITE_STORE_RATES);
+
+ } else if (strcasecmp("GraphiteSeparateInstances", child->key) == 0) {
+ status = cf_util_get_flag(child, &tctx->graphite_flags,
+ GRAPHITE_SEPARATE_INSTANCES);
+
+ } else if (strcasecmp("GraphiteAlwaysAppendDS", child->key) == 0) {
+ status = cf_util_get_flag(child, &tctx->graphite_flags,
+ GRAPHITE_ALWAYS_APPEND_DS);
+
+ } else if (strcasecmp("GraphitePreserveSeparator", child->key) == 0) {
+ status = cf_util_get_flag(child, &tctx->graphite_flags,
+ GRAPHITE_PRESERVE_SEPARATOR);
+
+ } else if (strcasecmp("GraphitePrefix", child->key) == 0) {
+ status = cf_util_get_string(child, &tctx->prefix);
+ } else if (strcasecmp("GraphitePostfix", child->key) == 0) {
+ status = cf_util_get_string(child, &tctx->postfix);
+ } else if (strcasecmp("GraphiteEscapeChar", child->key) == 0) {
+ char *tmp_buff = NULL;
+ status = cf_util_get_string(child, &tmp_buff);
+ if (strlen(tmp_buff) > 1)
+ WARNING("write_kafka plugin: The option \"GraphiteEscapeChar\" handles "
+ "only one character. Others will be ignored.");
+ tctx->escape_char = tmp_buff[0];
+ sfree(tmp_buff);
+ } else {
+ WARNING("write_kafka plugin: Invalid directive: %s.", child->key);
+ }
- return;
- errout:
- if (tctx->topic_name != NULL)
- free(tctx->topic_name);
- if (tctx->conf != NULL)
- rd_kafka_topic_conf_destroy(tctx->conf);
- if (tctx->kafka_conf != NULL)
- rd_kafka_conf_destroy(tctx->kafka_conf);
- sfree(tctx);
+ if (status != 0)
+ break;
+ }
+
+ rd_kafka_topic_conf_set_partitioner_cb(tctx->conf, kafka_partition);
+ rd_kafka_topic_conf_set_opaque(tctx->conf, tctx);
+
+ snprintf(callback_name, sizeof(callback_name), "write_kafka/%s",
+ tctx->topic_name);
+
+ status = plugin_register_write(
+ callback_name, kafka_write,
+ &(user_data_t){
+ .data = tctx, .free_func = kafka_topic_context_free,
+ });
+ if (status != 0) {
+ WARNING("write_kafka plugin: plugin_register_write (\"%s\") "
+ "failed with status %i.",
+ callback_name, status);
+ goto errout;
+ }
+
+ pthread_mutex_init(&tctx->lock, /* attr = */ NULL);
+
+ return;
+errout:
+ if (tctx->topic_name != NULL)
+ free(tctx->topic_name);
+ if (tctx->conf != NULL)
+ rd_kafka_topic_conf_destroy(tctx->conf);
+ if (tctx->kafka_conf != NULL)
+ rd_kafka_conf_destroy(tctx->kafka_conf);
+ sfree(tctx);
} /* }}} int kafka_config_topic */
static int kafka_config(oconfig_item_t *ci) /* {{{ */
{
- oconfig_item_t *child;
- rd_kafka_conf_t *conf;
- rd_kafka_conf_res_t ret;
- char errbuf[1024];
-
- if ((conf = rd_kafka_conf_new()) == NULL) {
- WARNING("cannot allocate kafka configuration.");
- return -1;
- }
- for (int i = 0; i < ci->children_num; i++) {
- child = &ci->children[i];
-
- if (strcasecmp("Topic", child->key) == 0) {
- kafka_config_topic (conf, child);
- } else if (strcasecmp(child->key, "Property") == 0) {
- char *key = NULL;
- char *val = NULL;
-
- if (child->values_num != 2) {
- WARNING("kafka properties need both a key and a value.");
- goto errout;
- }
- if (child->values[0].type != OCONFIG_TYPE_STRING ||
- child->values[1].type != OCONFIG_TYPE_STRING) {
- WARNING("kafka properties needs string arguments.");
- goto errout;
- }
- if ((key = strdup(child->values[0].value.string)) == NULL) {
- WARNING("cannot allocate memory for attribute key.");
- goto errout;
- }
- if ((val = strdup(child->values[1].value.string)) == NULL) {
- WARNING("cannot allocate memory for attribute value.");
- sfree(key);
- goto errout;
- }
- ret = rd_kafka_conf_set(conf, key, val, errbuf, sizeof(errbuf));
- if (ret != RD_KAFKA_CONF_OK) {
- WARNING("cannot set kafka property %s to %s: %s",
- key, val, errbuf);
- sfree(key);
- sfree(val);
- goto errout;
- }
- sfree(key);
- sfree(val);
- } else {
- WARNING ("write_kafka plugin: Ignoring unknown "
- "configuration option \"%s\" at top level.",
- child->key);
- }
- }
- if (conf != NULL)
- rd_kafka_conf_destroy(conf);
- return (0);
- errout:
- if (conf != NULL)
- rd_kafka_conf_destroy(conf);
+ oconfig_item_t *child;
+ rd_kafka_conf_t *conf;
+ rd_kafka_conf_res_t ret;
+ char errbuf[1024];
+
+ if ((conf = rd_kafka_conf_new()) == NULL) {
+ WARNING("cannot allocate kafka configuration.");
return -1;
+ }
+ for (int i = 0; i < ci->children_num; i++) {
+ child = &ci->children[i];
+
+ if (strcasecmp("Topic", child->key) == 0) {
+ kafka_config_topic(conf, child);
+ } else if (strcasecmp(child->key, "Property") == 0) {
+ char *key = NULL;
+ char *val = NULL;
+
+ if (child->values_num != 2) {
+ WARNING("kafka properties need both a key and a value.");
+ goto errout;
+ }
+ if (child->values[0].type != OCONFIG_TYPE_STRING ||
+ child->values[1].type != OCONFIG_TYPE_STRING) {
+ WARNING("kafka properties needs string arguments.");
+ goto errout;
+ }
+ if ((key = strdup(child->values[0].value.string)) == NULL) {
+ WARNING("cannot allocate memory for attribute key.");
+ goto errout;
+ }
+ if ((val = strdup(child->values[1].value.string)) == NULL) {
+ WARNING("cannot allocate memory for attribute value.");
+ sfree(key);
+ goto errout;
+ }
+ ret = rd_kafka_conf_set(conf, key, val, errbuf, sizeof(errbuf));
+ if (ret != RD_KAFKA_CONF_OK) {
+ WARNING("cannot set kafka property %s to %s: %s", key, val, errbuf);
+ sfree(key);
+ sfree(val);
+ goto errout;
+ }
+ sfree(key);
+ sfree(val);
+ } else {
+ WARNING("write_kafka plugin: Ignoring unknown "
+ "configuration option \"%s\" at top level.",
+ child->key);
+ }
+ }
+ if (conf != NULL)
+ rd_kafka_conf_destroy(conf);
+ return 0;
+errout:
+ if (conf != NULL)
+ rd_kafka_conf_destroy(conf);
+ return -1;
} /* }}} int kafka_config */
-void module_register(void)
-{
- plugin_register_complex_config ("write_kafka", kafka_config);
+void module_register(void) {
+ plugin_register_complex_config("write_kafka", kafka_config);
}
projects / collectd.git / blobdiff