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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"
#include "rdkafka.h"
#include "../src/rdkafka_proto.h"
#include "../src/rdunittest.h"
#include <stdarg.h>
/**
* @name Misc mock-injected errors.
*
*/
/**
* @brief Test producer handling (retry) of ERR_KAFKA_STORAGE_ERROR.
*/
static void do_test_producer_storage_error(rd_bool_t too_few_retries) {
rd_kafka_conf_t *conf;
rd_kafka_t *rk;
rd_kafka_mock_cluster_t *mcluster;
rd_kafka_resp_err_t err;
SUB_TEST_QUICK("%s", too_few_retries ? "with too few retries" : "");
test_conf_init(&conf, NULL, 10);
test_conf_set(conf, "test.mock.num.brokers", "3");
test_conf_set(conf, "retries", too_few_retries ? "1" : "10");
test_conf_set(conf, "retry.backoff.ms", "500");
rd_kafka_conf_set_dr_msg_cb(conf, test_dr_msg_cb);
test_curr->ignore_dr_err = rd_false;
if (too_few_retries) {
test_curr->exp_dr_err = RD_KAFKA_RESP_ERR_KAFKA_STORAGE_ERROR;
test_curr->exp_dr_status = RD_KAFKA_MSG_STATUS_NOT_PERSISTED;
} else {
test_curr->exp_dr_err = RD_KAFKA_RESP_ERR_NO_ERROR;
test_curr->exp_dr_status = RD_KAFKA_MSG_STATUS_PERSISTED;
}
rk = test_create_handle(RD_KAFKA_PRODUCER, conf);
mcluster = rd_kafka_handle_mock_cluster(rk);
TEST_ASSERT(mcluster, "missing mock cluster");
rd_kafka_mock_push_request_errors(
mcluster, RD_KAFKAP_Produce, 3,
RD_KAFKA_RESP_ERR_KAFKA_STORAGE_ERROR,
RD_KAFKA_RESP_ERR_KAFKA_STORAGE_ERROR,
RD_KAFKA_RESP_ERR_KAFKA_STORAGE_ERROR);
err = rd_kafka_producev(rk, RD_KAFKA_V_TOPIC("mytopic"),
RD_KAFKA_V_VALUE("hi", 2), RD_KAFKA_V_END);
TEST_ASSERT(!err, "produce failed: %s", rd_kafka_err2str(err));
/* Wait for delivery report. */
test_flush(rk, 5000);
rd_kafka_destroy(rk);
SUB_TEST_PASS();
}
/**
* @brief Issue #2933. Offset commit being retried when failing due to
* RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS and then causing fetchers
* to not start.
*/
static void do_test_offset_commit_error_during_rebalance(void) {
rd_kafka_conf_t *conf;
rd_kafka_t *c1, *c2;
rd_kafka_mock_cluster_t *mcluster;
const char *bootstraps;
const char *topic = "test";
const int msgcnt = 100;
rd_kafka_resp_err_t err;
SUB_TEST();
test_conf_init(&conf, NULL, 60);
mcluster = test_mock_cluster_new(3, &bootstraps);
rd_kafka_mock_topic_create(mcluster, topic, 4, 3);
/* Seed the topic with messages */
test_produce_msgs_easy_v(topic, 0, RD_KAFKA_PARTITION_UA, 0, msgcnt, 10,
"bootstrap.servers", bootstraps,
"batch.num.messages", "1", NULL);
test_conf_set(conf, "bootstrap.servers", bootstraps);
test_conf_set(conf, "auto.offset.reset", "earliest");
test_conf_set(conf, "enable.auto.commit", "false");
/* Make sure we don't consume the entire partition in one Fetch */
test_conf_set(conf, "fetch.message.max.bytes", "100");
c1 = test_create_consumer("mygroup", test_rebalance_cb,
rd_kafka_conf_dup(conf), NULL);
c2 = test_create_consumer("mygroup", test_rebalance_cb, conf, NULL);
test_consumer_subscribe(c1, topic);
test_consumer_subscribe(c2, topic);
/* Wait for assignment and one message */
test_consumer_poll("C1.PRE", c1, 0, -1, -1, 1, NULL);
test_consumer_poll("C2.PRE", c2, 0, -1, -1, 1, NULL);
/* Trigger rebalance */
test_consumer_close(c2);
rd_kafka_destroy(c2);
rd_kafka_mock_push_request_errors(
mcluster, RD_KAFKAP_OffsetCommit, 6,
RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS,
RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS,
RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS,
RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS,
RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS,
RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS);
/* This commit should fail (async) */
TEST_SAY("Committing (should fail)\n");
err = rd_kafka_commit(c1, NULL, 0 /*sync*/);
TEST_SAY("Commit returned %s\n", rd_kafka_err2name(err));
TEST_ASSERT(err == RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS,
"Expected commit to fail with ERR_REBALANCE_IN_PROGRESS, "
"not %s",
rd_kafka_err2name(err));
/* Wait for new assignment and able to read all messages */
test_consumer_poll("C1.PRE", c1, 0, -1, -1, msgcnt, NULL);
rd_kafka_destroy(c1);
test_mock_cluster_destroy(mcluster);
SUB_TEST_PASS();
}
/**
* @brief Issue #2933. Offset commit being retried when failing due to
* RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS and then causing fetchers
* to not start.
*/
static void do_test_offset_commit_request_timed_out(rd_bool_t auto_commit) {
rd_kafka_conf_t *conf;
rd_kafka_t *c1, *c2;
rd_kafka_mock_cluster_t *mcluster;
const char *bootstraps;
const char *topic = "test";
const int msgcnt = 1;
rd_kafka_topic_partition_list_t *partitions;
SUB_TEST_QUICK("enable.auto.commit=%s", auto_commit ? "true" : "false");
test_conf_init(&conf, NULL, 60);
mcluster = test_mock_cluster_new(1, &bootstraps);
rd_kafka_mock_topic_create(mcluster, topic, 1, 1);
/* Seed the topic with messages */
test_produce_msgs_easy_v(topic, 0, RD_KAFKA_PARTITION_UA, 0, msgcnt, 10,
"bootstrap.servers", bootstraps,
"batch.num.messages", "1", NULL);
test_conf_set(conf, "bootstrap.servers", bootstraps);
test_conf_set(conf, "auto.offset.reset", "earliest");
test_conf_set(conf, "enable.auto.commit",
auto_commit ? "true" : "false");
/* Too high to be done by interval in this test */
test_conf_set(conf, "auto.commit.interval.ms", "90000");
/* Make sure we don't consume the entire partition in one Fetch */
test_conf_set(conf, "fetch.message.max.bytes", "100");
c1 = test_create_consumer("mygroup", NULL, rd_kafka_conf_dup(conf),
NULL);
test_consumer_subscribe(c1, topic);
/* Wait for assignment and one message */
test_consumer_poll("C1.PRE", c1, 0, -1, -1, 1, NULL);
rd_kafka_mock_push_request_errors(mcluster, RD_KAFKAP_OffsetCommit, 2,
RD_KAFKA_RESP_ERR_REQUEST_TIMED_OUT,
RD_KAFKA_RESP_ERR_REQUEST_TIMED_OUT);
if (!auto_commit)
TEST_CALL_ERR__(rd_kafka_commit(c1, NULL, 0 /*sync*/));
/* Rely on consumer_close() doing final commit
* when auto commit is enabled */
test_consumer_close(c1);
rd_kafka_destroy(c1);
/* Create a new consumer and retrieve the committed offsets to verify
* they were properly committed */
c2 = test_create_consumer("mygroup", NULL, conf, NULL);
partitions = rd_kafka_topic_partition_list_new(1);
rd_kafka_topic_partition_list_add(partitions, topic, 0)->offset =
RD_KAFKA_OFFSET_INVALID;
TEST_CALL_ERR__(rd_kafka_committed(c2, partitions, 10 * 1000));
TEST_ASSERT(partitions->elems[0].offset == 1,
"Expected committed offset to be 1, not %" PRId64,
partitions->elems[0].offset);
rd_kafka_topic_partition_list_destroy(partitions);
rd_kafka_destroy(c2);
test_mock_cluster_destroy(mcluster);
SUB_TEST_PASS();
}
/**
* @brief Verify that a cluster roll does not cause consumer_poll() to return
* the temporary and retriable COORDINATOR_LOAD_IN_PROGRESS error. We should
* backoff and retry in that case.
*/
static void do_test_joingroup_coordinator_load_in_progress() {
rd_kafka_conf_t *conf;
rd_kafka_t *consumer;
rd_kafka_mock_cluster_t *mcluster;
const char *bootstraps;
const char *topic = "test";
const int msgcnt = 1;
SUB_TEST();
test_conf_init(&conf, NULL, 60);
mcluster = test_mock_cluster_new(1, &bootstraps);
rd_kafka_mock_topic_create(mcluster, topic, 1, 1);
test_produce_msgs_easy_v(topic, 0, RD_KAFKA_PARTITION_UA, 0, msgcnt, 10,
"bootstrap.servers", bootstraps,
"batch.num.messages", "1", NULL);
test_conf_set(conf, "bootstrap.servers", bootstraps);
test_conf_set(conf, "auto.offset.reset", "earliest");
rd_kafka_mock_push_request_errors(
mcluster, RD_KAFKAP_FindCoordinator, 1,
RD_KAFKA_RESP_ERR_COORDINATOR_LOAD_IN_PROGRESS);
consumer = test_create_consumer("mygroup", NULL, conf, NULL);
test_consumer_subscribe(consumer, topic);
/* Wait for assignment and one message */
test_consumer_poll("consumer", consumer, 0, -1, -1, msgcnt, NULL);
test_consumer_close(consumer);
rd_kafka_destroy(consumer);
test_mock_cluster_destroy(mcluster);
SUB_TEST_PASS();
}
int main_0117_mock_errors(int argc, char **argv) {
if (test_needs_auth()) {
TEST_SKIP("Mock cluster does not support SSL/SASL\n");
return 0;
}
do_test_producer_storage_error(rd_false);
do_test_producer_storage_error(rd_true);
do_test_offset_commit_error_during_rebalance();
do_test_offset_commit_request_timed_out(rd_true);
do_test_offset_commit_request_timed_out(rd_false);
do_test_joingroup_coordinator_load_in_progress();
return 0;
}
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