/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2012-2015, 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"
#if WITH_SOCKEM
#include "rdkafka.h"
#include <stdarg.h>
/**
* Verify that consumtion continues after broker connectivity failure.
*/
static int simulate_network_down = 0;
/**
* @brief Sockem connect, called from **internal librdkafka thread** through
* librdkafka's connect_cb
*/
static int connect_cb (struct test *test, sockem_t *skm, const char *id) {
int r;
TEST_LOCK();
r = simulate_network_down;
TEST_UNLOCK();
if (r) {
sockem_close(skm);
return ECONNREFUSED;
} else {
/* Let it go real slow so we dont consume all
* the messages right away. */
sockem_set(skm, "rx.thruput", 100000, NULL);
}
return 0;
}
static int is_fatal_cb (rd_kafka_t *rk, rd_kafka_resp_err_t err,
const char *reason) {
/* Ignore connectivity errors since we'll be bringing down
* .. connectivity.
* SASL auther will think a connection-down even in the auth
* state means the broker doesn't support SASL PLAIN. */
if (err == RD_KAFKA_RESP_ERR__TRANSPORT ||
err == RD_KAFKA_RESP_ERR__ALL_BROKERS_DOWN ||
err == RD_KAFKA_RESP_ERR__AUTHENTICATION)
return 0;
return 1;
}
int main_0049_consume_conn_close (int argc, char **argv) {
rd_kafka_t *rk;
const char *topic = test_mk_topic_name("0049_consume_conn_close", 1);
uint64_t testid;
int msgcnt = 10000;
test_msgver_t mv;
rd_kafka_conf_t *conf;
rd_kafka_topic_conf_t *tconf;
rd_kafka_topic_partition_list_t *assignment;
rd_kafka_resp_err_t err;
if (!test_conf_match(NULL, "sasl.mechanisms", "GSSAPI")) {
TEST_SKIP("KNOWN ISSUE: ApiVersionRequest+SaslHandshake "
"will not play well with sudden disconnects\n");
return 0;
}
test_conf_init(&conf, &tconf, 60);
/* Want an even number so it is divisable by two without surprises */
msgcnt = (msgcnt / (int)test_timeout_multiplier) & ~1;
testid = test_id_generate();
test_produce_msgs_easy(topic, testid, RD_KAFKA_PARTITION_UA, msgcnt);
test_socket_enable(conf);
test_curr->connect_cb = connect_cb;
test_curr->is_fatal_cb = is_fatal_cb;
test_topic_conf_set(tconf, "auto.offset.reset", "smallest");
rk = test_create_consumer(topic, NULL, conf, tconf);
test_consumer_subscribe(rk, topic);
test_msgver_init(&mv, testid);
test_consumer_poll("consume.up", rk, testid, -1, 0, msgcnt/2, &mv);
err = rd_kafka_assignment(rk, &assignment);
TEST_ASSERT(!err, "assignment() failed: %s", rd_kafka_err2str(err));
TEST_ASSERT(assignment->cnt > 0, "empty assignment");
TEST_SAY("Bringing down the network\n");
TEST_LOCK();
simulate_network_down = 1;
TEST_UNLOCK();
test_socket_close_all(test_curr, 1/*reinit*/);
TEST_SAY("Waiting for session timeout to expire (6s), and then some\n");
/* Commit an offset, which should fail, to trigger the offset commit
* callback fallback (CONSUMER_ERR) */
assignment->elems[0].offset = 123456789;
TEST_SAY("Committing offsets while down, should fail eventually\n");
err = rd_kafka_commit(rk, assignment, 1/*async*/);
TEST_ASSERT(!err, "async commit failed: %s", rd_kafka_err2str(err));
rd_kafka_topic_partition_list_destroy(assignment);
rd_sleep(10);
TEST_SAY("Bringing network back up\n");
TEST_LOCK();
simulate_network_down = 0;
TEST_UNLOCK();
TEST_SAY("Continuing to consume..\n");
test_consumer_poll("consume.up2", rk, testid, -1, msgcnt/2, msgcnt/2,
&mv);
test_msgver_verify("consume", &mv, TEST_MSGVER_ORDER|TEST_MSGVER_DUP,
0, msgcnt);
test_msgver_clear(&mv);
test_consumer_close(rk);
rd_kafka_destroy(rk);
return 0;
}
#endif