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/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2016, 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.
*/
#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 */
/**
* Issue #641: correct handling of partial messages in FetchResponse
*
* General idea:
* - Produce messages of 1000 bytes each
* - Set fetch.message.max.bytes to 1500 so that only one full message
* can be fetched per request.
* - Make sure all messages are received correctly and in order.
*/
int main_0036_partial_fetch(int argc, char **argv) {
const char *topic = test_mk_topic_name(__FUNCTION__, 1);
const int partition = 0;
const int msgcnt = 100;
const int msgsize = 1000;
uint64_t testid;
rd_kafka_conf_t *conf;
rd_kafka_t *rk;
rd_kafka_topic_t *rkt;
TEST_SAY("Producing %d messages of size %d to %s [%d]\n", msgcnt,
(int)msgsize, topic, partition);
testid = test_id_generate();
rk = test_create_producer();
rkt = test_create_producer_topic(rk, topic, NULL);
test_produce_msgs(rk, rkt, testid, partition, 0, msgcnt, NULL, msgsize);
rd_kafka_topic_destroy(rkt);
rd_kafka_destroy(rk);
TEST_SAY("Creating consumer\n");
test_conf_init(&conf, NULL, 0);
/* This should fetch 1.5 messages per fetch, thus resulting in
* partial fetches, hopefully. */
test_conf_set(conf, "fetch.message.max.bytes", "1500");
rk = test_create_consumer(NULL, NULL, conf, NULL);
rkt = rd_kafka_topic_new(rk, topic, NULL);
test_consumer_start("CONSUME", rkt, partition,
RD_KAFKA_OFFSET_BEGINNING);
test_consume_msgs("CONSUME", rkt, testid, partition, TEST_NO_SEEK, 0,
msgcnt, 1);
test_consumer_stop("CONSUME", rkt, partition);
rd_kafka_topic_destroy(rkt);
rd_kafka_destroy(rk);
return 0;
}
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