/* * 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" /* Typical include path would be , but this program * is built from within the librdkafka source tree and thus differs. */ #include "rdkafka.h" /* for Kafka driver */ /** * Consumer: various offset commit constellations, matrix: * enable.auto.commit, enable.auto.offset.store, async */ static const char *topic; static const int msgcnt = 100; static const int partition = 0; static uint64_t testid; static int64_t expected_offset = 0; static int64_t committed_offset = -1; static void offset_commit_cb (rd_kafka_t *rk, rd_kafka_resp_err_t err, rd_kafka_topic_partition_list_t *offsets, void *opaque) { rd_kafka_topic_partition_t *rktpar; TEST_SAYL(3, "Offset committed: %s:\n", rd_kafka_err2str(err)); if (err == RD_KAFKA_RESP_ERR__NO_OFFSET) return; test_print_partition_list(offsets); if (err) TEST_FAIL("Offset commit failed: %s", rd_kafka_err2str(err)); if (offsets->cnt == 0) TEST_FAIL("Expected at least one partition in offset_commit_cb"); /* Find correct partition */ if (!(rktpar = rd_kafka_topic_partition_list_find(offsets, topic, partition))) return; if (rktpar->err) TEST_FAIL("Offset commit failed for partitioń : %s", rd_kafka_err2str(rktpar->err)); if (rktpar->offset > expected_offset) TEST_FAIL("Offset committed %"PRId64 " > expected offset %"PRId64, rktpar->offset, expected_offset); if (rktpar->offset <= committed_offset) TEST_FAIL("Old offset %"PRId64" (re)committed: " "should be above committed_offset %"PRId64, rktpar->offset, committed_offset); committed_offset = rktpar->offset; if (rktpar->offset < expected_offset) { TEST_SAYL(3, "Offset committed %"PRId64 " < expected offset %"PRId64"\n", rktpar->offset, expected_offset); return; } TEST_SAYL(3, "Expected offset committed: %"PRId64"\n", rktpar->offset); } static void do_offset_test (const char *what, int auto_commit, int auto_store, int async) { test_timing_t t_all; char groupid[64]; rd_kafka_t *rk; rd_kafka_conf_t *conf; rd_kafka_topic_conf_t *tconf; int cnt = 0; const int extra_cnt = 5; rd_kafka_resp_err_t err; char errstr[512]; rd_kafka_topic_partition_list_t *parts; rd_kafka_topic_partition_t *rktpar; int64_t next_offset = -1; test_conf_init(&conf, &tconf, 20); test_conf_set(conf, "enable.auto.commit", auto_commit ? "true":"false"); test_conf_set(conf, "enable.auto.offset.store", auto_store ?"true":"false"); test_conf_set(conf, "auto.commit.interval.ms", "500"); rd_kafka_conf_set_offset_commit_cb(conf, offset_commit_cb); test_topic_conf_set(tconf, "auto.offset.reset", "smallest"); test_str_id_generate(groupid, sizeof(groupid)); test_conf_set(conf, "group.id", groupid); rd_kafka_conf_set_default_topic_conf(conf, tconf); TEST_SAY(_C_MAG "[ do_offset_test: %s with group.id %s ]\n", what, groupid); TIMING_START(&t_all, what); expected_offset = 0; committed_offset = -1; /* MO: * - Create consumer. * - Start consuming from beginning * - Perform store & commits according to settings * - Stop storing&committing when half of the messages are consumed, * - but consume 5 more to check against. * - Query position. * - Destroy consumer. * - Create new consumer with same group.id using stored offsets * - Should consume the expected message. */ /* Create kafka instance */ rk = rd_kafka_new(RD_KAFKA_CONSUMER, rd_kafka_conf_dup(conf), errstr, sizeof(errstr)); if (!rk) TEST_FAIL("%s: Failed to create rdkafka instance: %s\n", what, errstr); rd_kafka_poll_set_consumer(rk); test_consumer_subscribe(rk, topic); while (cnt - extra_cnt < msgcnt / 2) { rd_kafka_message_t *rkm; rkm = rd_kafka_consumer_poll(rk, 10*1000); if (!rkm) continue; if (rkm->err == RD_KAFKA_RESP_ERR__TIMED_OUT) TEST_FAIL("%s: Timed out waiting for message %d", what,cnt); else if (rkm->err == RD_KAFKA_RESP_ERR__PARTITION_EOF) { rd_kafka_message_destroy(rkm); continue; } else if (rkm->err) TEST_FAIL("%s: Consumer error: %s", what, rd_kafka_message_errstr(rkm)); /* Offset of next message. */ next_offset = rkm->offset + 1; if (cnt < msgcnt / 2) { if (!auto_store) { err = rd_kafka_offset_store(rkm->rkt,rkm->partition, rkm->offset); if (err) TEST_FAIL("%s: offset_store failed: %s\n", what, rd_kafka_err2str(err)); } if (!auto_commit) { test_timing_t t_commit; TIMING_START(&t_commit, async?"commit.async":"commit.sync"); err = rd_kafka_commit_message(rk, rkm, async); TIMING_STOP(&t_commit); if (err) TEST_FAIL("%s: commit failed: %s\n", what, rd_kafka_err2str(err)); } expected_offset = rkm->offset+1; } else if (auto_store && auto_commit) expected_offset = rkm->offset+1; rd_kafka_message_destroy(rkm); cnt++; } TEST_SAY("%s: done consuming after %d messages, at offset %"PRId64"\n", what, cnt, expected_offset); if ((err = rd_kafka_assignment(rk, &parts))) TEST_FAIL("%s: failed to get assignment(): %s\n", what, rd_kafka_err2str(err)); /* Verify position */ if ((err = rd_kafka_position(rk, parts))) TEST_FAIL("%s: failed to get position(): %s\n", what, rd_kafka_err2str(err)); if (!(rktpar = rd_kafka_topic_partition_list_find(parts, topic, partition))) TEST_FAIL("%s: position(): topic lost\n", what); if (rktpar->offset != next_offset) TEST_FAIL("%s: Expected position() offset %"PRId64", got %"PRId64, what, next_offset, rktpar->offset); TEST_SAY("%s: Position is at %"PRId64", good!\n", what, rktpar->offset); /* Pause messages while waiting so we can serve callbacks * without having more messages received. */ if ((err = rd_kafka_pause_partitions(rk, parts))) TEST_FAIL("%s: failed to pause partitions: %s\n", what, rd_kafka_err2str(err)); rd_kafka_topic_partition_list_destroy(parts); /* Fire off any enqueued offset_commit_cb */ test_consumer_poll_no_msgs(what, rk, testid, 0); TEST_SAY("%s: committed_offset %"PRId64", expected_offset %"PRId64"\n", what, committed_offset, expected_offset); if (!auto_commit && !async) { /* Sync commits should be up to date at this point. */ if (committed_offset != expected_offset) TEST_FAIL("%s: Sync commit: committed offset %"PRId64 " should be same as expected offset " "%"PRId64, what, committed_offset, expected_offset); } else { /* Wait for offset commits to catch up */ while (committed_offset < expected_offset) { TEST_SAYL(3, "%s: Wait for committed offset %"PRId64 " to reach expected offset %"PRId64"\n", what, committed_offset, expected_offset); test_consumer_poll_no_msgs(what, rk, testid, 1000); } } TEST_SAY("%s: phase 1 complete, %d messages consumed, " "next expected offset is %"PRId64"\n", what, cnt, expected_offset); /* Query position */ parts = rd_kafka_topic_partition_list_new(1); rd_kafka_topic_partition_list_add(parts, topic, partition); err = rd_kafka_committed(rk, parts, tmout_multip(5*1000)); if (err) TEST_FAIL("%s: committed() failed: %s", what, rd_kafka_err2str(err)); if (!(rktpar = rd_kafka_topic_partition_list_find(parts, topic, partition))) TEST_FAIL("%s: committed(): topic lost\n", what); if (rktpar->offset != expected_offset) TEST_FAIL("%s: Expected committed() offset %"PRId64", got %"PRId64, what, expected_offset, rktpar->offset); TEST_SAY("%s: Committed offset is at %"PRId64", good!\n", what, rktpar->offset); rd_kafka_topic_partition_list_destroy(parts); test_consumer_close(rk); rd_kafka_destroy(rk); /* Fire up a new consumer and continue from where we left off. */ TEST_SAY("%s: phase 2: starting new consumer to resume consumption\n",what); rk = rd_kafka_new(RD_KAFKA_CONSUMER, conf, errstr, sizeof(errstr)); if (!rk) TEST_FAIL("%s: Failed to create rdkafka instance: %s\n", what, errstr); rd_kafka_poll_set_consumer(rk); test_consumer_subscribe(rk, topic); while (cnt < msgcnt) { rd_kafka_message_t *rkm; rkm = rd_kafka_consumer_poll(rk, 10*1000); if (!rkm) continue; if (rkm->err == RD_KAFKA_RESP_ERR__TIMED_OUT) TEST_FAIL("%s: Timed out waiting for message %d", what,cnt); else if (rkm->err == RD_KAFKA_RESP_ERR__PARTITION_EOF) { rd_kafka_message_destroy(rkm); continue; } else if (rkm->err) TEST_FAIL("%s: Consumer error: %s", what, rd_kafka_message_errstr(rkm)); if (rkm->offset != expected_offset) TEST_FAIL("%s: Received message offset %"PRId64 ", expected %"PRId64" at msgcnt %d/%d\n", what, rkm->offset, expected_offset, cnt, msgcnt); rd_kafka_message_destroy(rkm); expected_offset++; cnt++; } TEST_SAY("%s: phase 2: complete\n", what); test_consumer_close(rk); rd_kafka_destroy(rk); TIMING_STOP(&t_all); } int main_0030_offset_commit (int argc, char **argv) { topic = test_mk_topic_name(__FUNCTION__, 1); testid = test_produce_msgs_easy(topic, 0, partition, msgcnt); do_offset_test("AUTO.COMMIT & AUTO.STORE", 1 /* enable.auto.commit */, 1 /* enable.auto.offset.store */, 0 /* not used. */); do_offset_test("AUTO.COMMIT & MANUAL.STORE", 1 /* enable.auto.commit */, 0 /* enable.auto.offset.store */, 0 /* not used */); do_offset_test("MANUAL.COMMIT.ASYNC & AUTO.STORE", 0 /* enable.auto.commit */, 1 /* enable.auto.offset.store */, 1 /* async */); do_offset_test("MANUAL.COMMIT.SYNC & AUTO.STORE", 0 /* enable.auto.commit */, 1 /* enable.auto.offset.store */, 0 /* async */); do_offset_test("MANUAL.COMMIT.ASYNC & MANUAL.STORE", 0 /* enable.auto.commit */, 0 /* enable.auto.offset.store */, 1 /* sync */); do_offset_test("MANUAL.COMMIT.SYNC & MANUAL.STORE", 0 /* enable.auto.commit */, 0 /* enable.auto.offset.store */, 0 /* sync */); return 0; }