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/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2020, 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"
/**
* Issue #2933: Offset commit on revoke would cause hang.
*/
static rd_kafka_t *c1, *c2;
static void rebalance_cb(rd_kafka_t *rk,
rd_kafka_resp_err_t err,
rd_kafka_topic_partition_list_t *parts,
void *opaque) {
TEST_SAY("Rebalance for %s: %s: %d partition(s)\n", rd_kafka_name(rk),
rd_kafka_err2name(err), parts->cnt);
if (err == RD_KAFKA_RESP_ERR__ASSIGN_PARTITIONS) {
TEST_CALL_ERR__(rd_kafka_assign(rk, parts));
} else if (err == RD_KAFKA_RESP_ERR__REVOKE_PARTITIONS) {
rd_kafka_resp_err_t commit_err;
TEST_CALL_ERR__(rd_kafka_position(rk, parts));
TEST_CALL_ERR__(rd_kafka_assign(rk, NULL));
if (rk == c1)
return;
/* Give the closing consumer some time to handle the
* unassignment and leave so that the coming commit fails. */
rd_sleep(5);
/* Committing after unassign will trigger an
* Illegal generation error from the broker, which would
* previously cause the cgrp to not properly transition
* the next assigned state to fetching.
* The closing consumer's commit is denied by the consumer
* since it will have started to shut down after the assign
* call. */
TEST_SAY("%s: Committing\n", rd_kafka_name(rk));
commit_err = rd_kafka_commit(rk, parts, 0 /*sync*/);
TEST_SAY("%s: Commit result: %s\n", rd_kafka_name(rk),
rd_kafka_err2name(commit_err));
TEST_ASSERT(commit_err,
"Expected closing consumer %s's commit to "
"fail, but got %s",
rd_kafka_name(rk), rd_kafka_err2name(commit_err));
} else {
TEST_FAIL("Unhandled event: %s", rd_kafka_err2name(err));
}
}
int main_0118_commit_rebalance(int argc, char **argv) {
const char *topic = test_mk_topic_name(__FUNCTION__, 1);
rd_kafka_conf_t *conf;
const int msgcnt = 1000;
test_conf_init(&conf, NULL, 60);
test_conf_set(conf, "enable.auto.commit", "false");
test_conf_set(conf, "auto.offset.reset", "earliest");
rd_kafka_conf_set_rebalance_cb(conf, rebalance_cb);
test_produce_msgs_easy_v(topic, 0, RD_KAFKA_PARTITION_UA, 0, msgcnt, 10,
NULL);
c1 = test_create_consumer(topic, rebalance_cb, rd_kafka_conf_dup(conf),
NULL);
c2 = test_create_consumer(topic, rebalance_cb, conf, NULL);
test_consumer_subscribe(c1, topic);
test_consumer_subscribe(c2, topic);
test_consumer_poll("C1.PRE", c1, 0, -1, -1, 10, NULL);
test_consumer_poll("C2.PRE", c2, 0, -1, -1, 10, NULL);
/* Trigger rebalance */
test_consumer_close(c2);
rd_kafka_destroy(c2);
/* Since no offsets were successfully committed the remaining consumer
* should be able to receive all messages. */
test_consumer_poll("C1.POST", c1, 0, -1, -1, msgcnt, NULL);
rd_kafka_destroy(c1);
return 0;
}
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