/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2012-2013, Magnus Edenhill
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Produce NULL payload messages, then consume them.
*/
#include "test.h"
/* Typical include path would be <librdkafka/rdkafka.h>, but this program
* is built from within the librdkafka source tree and thus differs. */
#include "rdkafka.h" /* for Kafka driver */
static int prod_msg_remains = 0;
static int fails = 0;
/**
* Delivery reported callback.
* Called for each message once to signal its delivery status.
*/
static void dr_cb (rd_kafka_t *rk, void *payload, size_t len,
rd_kafka_resp_err_t err, void *opaque, void *msg_opaque) {
if (err != RD_KAFKA_RESP_ERR_NO_ERROR)
TEST_FAIL("Message delivery failed: %s\n",
rd_kafka_err2str(err));
if (prod_msg_remains == 0)
TEST_FAIL("Too many messages delivered (prod_msg_remains %i)",
prod_msg_remains);
prod_msg_remains--;
}
/**
* Produces 'msgcnt' messages split over 'partition_cnt' partitions.
*/
static void produce_null_messages (uint64_t testid, const char *topic,
int partition_cnt, int msgcnt) {
int r;
rd_kafka_t *rk;
rd_kafka_topic_t *rkt;
rd_kafka_conf_t *conf;
rd_kafka_topic_conf_t *topic_conf;
char errstr[512];
int i;
int32_t partition;
int msgid = 0;
test_conf_init(&conf, &topic_conf, 20);
rd_kafka_conf_set_dr_cb(conf, dr_cb);
/* Make sure all replicas are in-sync after producing
* so that consume test wont fail. */
rd_kafka_topic_conf_set(topic_conf, "request.required.acks", "-1",
errstr, sizeof(errstr));
/* Create kafka instance */
rk = test_create_handle(RD_KAFKA_PRODUCER, conf);
rkt = rd_kafka_topic_new(rk, topic, topic_conf);
if (!rkt)
TEST_FAIL("Failed to create topic: %s\n",
rd_kafka_err2str(rd_kafka_last_error()));
/* Produce messages */
prod_msg_remains = msgcnt;
for (partition = 0 ; partition < partition_cnt ; partition++) {
int batch_cnt = msgcnt / partition_cnt;
for (i = 0 ; i < batch_cnt ; i++) {
char key[128];
rd_snprintf(key, sizeof(key),
"testid=%"PRIu64", partition=%i, msg=%i",
testid, (int)partition, msgid);
r = rd_kafka_produce(rkt, partition, 0,
NULL, 0,
key, strlen(key),
NULL);
if (r == -1)
TEST_FAIL("Failed to produce message %i "
"to partition %i: %s",
msgid, (int)partition,
rd_kafka_err2str(rd_kafka_last_error()));
msgid++;
}
}
TEST_SAY("Produced %d messages to %d partition(s), "
"waiting for deliveries\n", msgcnt, partition_cnt);
/* Wait for messages to be delivered */
while (rd_kafka_outq_len(rk) > 0)
rd_kafka_poll(rk, 100);
if (fails)
TEST_FAIL("%i failures, see previous errors", fails);
if (prod_msg_remains != 0)
TEST_FAIL("Still waiting for %i messages to be produced",
prod_msg_remains);
else
TEST_SAY("All messages delivered\n");
/* Destroy topic */
rd_kafka_topic_destroy(rkt);
/* Destroy rdkafka instance */
TEST_SAY("Destroying kafka instance %s\n", rd_kafka_name(rk));
rd_kafka_destroy(rk);
}
static int *cons_msgs;
static int cons_msgs_size;
static int cons_msgs_cnt;
static void verify_consumed_msg_reset (int msgcnt) {
if (cons_msgs) {
free(cons_msgs);
cons_msgs = NULL;
}
if (msgcnt) {
int i;
cons_msgs = malloc(sizeof(*cons_msgs) * msgcnt);
for (i = 0 ; i < msgcnt ; i++)
cons_msgs[i] = -1;
}
cons_msgs_size = msgcnt;
cons_msgs_cnt = 0;
}
static int int_cmp (const void *_a, const void *_b) {
int a = *(int *)_a;
int b = *(int *)_b;
return a - b;
}
static void verify_consumed_msg_check0 (const char *func, int line) {
int i;
int fails = 0;
if (cons_msgs_cnt < cons_msgs_size) {
TEST_SAY("Missing %i messages in consumer\n",
cons_msgs_size - cons_msgs_cnt);
fails++;
}
qsort(cons_msgs, cons_msgs_size, sizeof(*cons_msgs), int_cmp);
for (i = 0 ; i < cons_msgs_size ; i++) {
if (cons_msgs[i] != i) {
TEST_SAY("Consumed message #%i is wrong, "
"expected #%i\n",
cons_msgs[i], i);
fails++;
}
}
if (fails)
TEST_FAIL("See above error(s)");
verify_consumed_msg_reset(0);
}
#define verify_consumed_msg_check() \
verify_consumed_msg_check0(__FUNCTION__,__LINE__)
static void verify_consumed_msg0 (const char *func, int line,
uint64_t testid, int32_t partition,
int msgnum,
rd_kafka_message_t *rkmessage) {
uint64_t in_testid;
int in_part;
int in_msgnum;
char buf[128];
if (rkmessage->len != 0)
TEST_FAIL("Incoming message not NULL: %i bytes",
(int)rkmessage->len);
if (rkmessage->key_len +1 >= sizeof(buf))
TEST_FAIL("Incoming message key too large (%i): "
"not sourced by this test",
(int)rkmessage->key_len);
rd_snprintf(buf, sizeof(buf), "%.*s",
(int)rkmessage->key_len, (char *)rkmessage->key);
if (sscanf(buf, "testid=%"SCNu64", partition=%i, msg=%i",
&in_testid, &in_part, &in_msgnum) != 3)
TEST_FAIL("Incorrect key format: %s", buf);
if (testid != in_testid ||
(partition != -1 && partition != in_part) ||
(msgnum != -1 && msgnum != in_msgnum) ||
(in_msgnum < 0 || in_msgnum > cons_msgs_size))
goto fail_match;
if (test_level > 2) {
TEST_SAY("%s:%i: Our testid %"PRIu64", part %i (%i), "
"msg %i/%i did "
", key's: \"%s\"\n",
func, line,
testid, (int)partition, (int)rkmessage->partition,
msgnum, cons_msgs_size, buf);
}
if (cons_msgs_cnt == cons_msgs_size) {
TEST_SAY("Too many messages in cons_msgs (%i) while reading "
"message key \"%s\"\n",
cons_msgs_cnt, buf);
verify_consumed_msg_check();
TEST_FAIL("See above error(s)");
}
cons_msgs[cons_msgs_cnt++] = in_msgnum;
return;
fail_match:
TEST_FAIL("%s:%i: Our testid %"PRIu64", part %i, msg %i/%i did "
"not match message's key: \"%s\"\n",
func, line,
testid, (int)partition, msgnum, cons_msgs_size, buf);
}
#define verify_consumed_msg(testid,part,msgnum,rkmessage) \
verify_consumed_msg0(__FUNCTION__,__LINE__,testid,part,msgnum,rkmessage)
static void consume_messages (uint64_t testid, const char *topic,
int32_t partition, int msg_base, int batch_cnt,
int msgcnt) {
rd_kafka_t *rk;
rd_kafka_topic_t *rkt;
rd_kafka_conf_t *conf;
rd_kafka_topic_conf_t *topic_conf;
int i;
test_conf_init(&conf, &topic_conf, 20);
/* Create kafka instance */
rk = test_create_handle(RD_KAFKA_CONSUMER, conf);
rkt = rd_kafka_topic_new(rk, topic, topic_conf);
if (!rkt)
TEST_FAIL("Failed to create topic: %s\n",
rd_kafka_err2str(rd_kafka_last_error()));
TEST_SAY("Consuming %i messages from partition %i\n",
batch_cnt, partition);
/* Consume messages */
if (rd_kafka_consume_start(rkt, partition,
RD_KAFKA_OFFSET_TAIL(batch_cnt)) == -1)
TEST_FAIL("consume_start(%i, -%i) failed: %s",
(int)partition, batch_cnt,
rd_kafka_err2str(rd_kafka_last_error()));
for (i = 0 ; i < batch_cnt ; i++) {
rd_kafka_message_t *rkmessage;
rkmessage = rd_kafka_consume(rkt, partition, tmout_multip(5000));
if (!rkmessage)
TEST_FAIL("Failed to consume message %i/%i from "
"partition %i: %s",
i, batch_cnt, (int)partition,
rd_kafka_err2str(rd_kafka_last_error()));
if (rkmessage->err)
TEST_FAIL("Consume message %i/%i from partition %i "
"has error: %s",
i, batch_cnt, (int)partition,
rd_kafka_err2str(rkmessage->err));
verify_consumed_msg(testid, partition, msg_base+i, rkmessage);
rd_kafka_message_destroy(rkmessage);
}
rd_kafka_consume_stop(rkt, partition);
/* Destroy topic */
rd_kafka_topic_destroy(rkt);
/* Destroy rdkafka instance */
TEST_SAY("Destroying kafka instance %s\n", rd_kafka_name(rk));
rd_kafka_destroy(rk);
}
static void consume_messages_with_queues (uint64_t testid, const char *topic,
int partition_cnt, int msgcnt) {
rd_kafka_t *rk;
rd_kafka_topic_t *rkt;
rd_kafka_conf_t *conf;
rd_kafka_topic_conf_t *topic_conf;
rd_kafka_queue_t *rkqu;
int i;
int32_t partition;
int batch_cnt = msgcnt / partition_cnt;
test_conf_init(&conf, &topic_conf, 20);
/* Create kafka instance */
rk = test_create_handle(RD_KAFKA_CONSUMER, conf);
/* Create queue */
rkqu = rd_kafka_queue_new(rk);
rkt = rd_kafka_topic_new(rk, topic, topic_conf);
if (!rkt)
TEST_FAIL("Failed to create topic: %s\n",
rd_kafka_err2str(rd_kafka_last_error()));
TEST_SAY("Consuming %i messages from one queue serving %i partitions\n",
msgcnt, partition_cnt);
/* Start consuming each partition */
for (partition = 0 ; partition < partition_cnt ; partition++) {
/* Consume messages */
TEST_SAY("Start consuming partition %i at tail offset -%i\n",
partition, batch_cnt);
if (rd_kafka_consume_start_queue(rkt, partition,
RD_KAFKA_OFFSET_TAIL(batch_cnt),
rkqu) == -1)
TEST_FAIL("consume_start_queue(%i) failed: %s",
(int)partition,
rd_kafka_err2str(rd_kafka_last_error()));
}
/* Consume messages from queue */
for (i = 0 ; i < msgcnt ; i++) {
rd_kafka_message_t *rkmessage;
rkmessage = rd_kafka_consume_queue(rkqu, tmout_multip(5000));
if (!rkmessage)
TEST_FAIL("Failed to consume message %i/%i from "
"queue: %s",
i, msgcnt,
rd_kafka_err2str(rd_kafka_last_error()));
if (rkmessage->err)
TEST_FAIL("Consume message %i/%i from queue "
"has error (partition %"PRId32"): %s",
i, msgcnt,
rkmessage->partition,
rd_kafka_err2str(rkmessage->err));
verify_consumed_msg(testid, -1, -1, rkmessage);
rd_kafka_message_destroy(rkmessage);
}
/* Stop consuming each partition */
for (partition = 0 ; partition < partition_cnt ; partition++)
rd_kafka_consume_stop(rkt, partition);
/* Destroy queue */
rd_kafka_queue_destroy(rkqu);
/* Destroy topic */
rd_kafka_topic_destroy(rkt);
/* Destroy rdkafka instance */
TEST_SAY("Destroying kafka instance %s\n", rd_kafka_name(rk));
rd_kafka_destroy(rk);
}
static void test_produce_consume (void) {
int msgcnt = 1000;
int partition_cnt = 1;
int i;
uint64_t testid;
int msg_base = 0;
const char *topic;
/* Generate a testid so we can differentiate messages
* from other tests */
testid = test_id_generate();
/* Read test.conf to configure topic name */
test_conf_init(NULL, NULL, 20);
topic = test_mk_topic_name("0013", 0);
TEST_SAY("Topic %s, testid %"PRIu64"\n", topic, testid);
/* Produce messages */
produce_null_messages(testid, topic, partition_cnt, msgcnt);
/* Consume messages with standard interface */
verify_consumed_msg_reset(msgcnt);
for (i = 0 ; i < partition_cnt ; i++) {
consume_messages(testid, topic, i,
msg_base, msgcnt / partition_cnt, msgcnt);
msg_base += msgcnt / partition_cnt;
}
verify_consumed_msg_check();
/* Consume messages with queue interface */
verify_consumed_msg_reset(msgcnt);
consume_messages_with_queues(testid, topic, partition_cnt, msgcnt);
verify_consumed_msg_check();
return;
}
int main_0013_null_msgs (int argc, char **argv) {
test_produce_consume();
return 0;
}