Adding upstream version 1.45.3+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 535 insertions, 0 deletions

diff --git a/src/fluent-bit/lib/librdkafka-2.1.0/tests/0053-stats_cb.cpp b/src/fluent-bit/lib/librdkafka-2.1.0/tests/0053-stats_cb.cpp
new file mode 100644
index 000000000..a61755c30
--- /dev/null
+++ b/src/fluent-bit/lib/librdkafka-2.1.0/tests/0053-stats_cb.cpp
@@ -0,0 +1,535 @@
+/*
+ * librdkafka - Apache Kafka C library
+ *
+ * Copyright (c) 2012-2018, 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 <iostream>
+#include <fstream>
+#include <iterator>
+#include <string>
+#include "testcpp.h"
+
+#if WITH_RAPIDJSON
+#include <rapidjson/document.h>
+#include <rapidjson/schema.h>
+#include <rapidjson/filereadstream.h>
+#include <rapidjson/stringbuffer.h>
+#include <rapidjson/error/en.h>
+#include <rapidjson/prettywriter.h>
+#endif
+
+static const char *stats_schema_path = "../src/statistics_schema.json";
+
+#if WITH_RAPIDJSON
+/**
+ * @brief Statistics schema validator
+ */
+class TestSchemaValidator {
+ public:
+  TestSchemaValidator() {
+  }
+  TestSchemaValidator(const std::string schema_path) {
+    /* Read schema from file */
+    schema_path_ = schema_path;
+
+    std::ifstream f(schema_path.c_str());
+    if (!f.is_open())
+      Test::Fail(tostr() << "Failed to open schema " << schema_path << ": "
+                         << strerror(errno));
+    std::string schema_str((std::istreambuf_iterator<char>(f)),
+                           (std::istreambuf_iterator<char>()));
+
+    /* Parse schema */
+    sd_ = new rapidjson::Document();
+    if (sd_->Parse(schema_str.c_str()).HasParseError())
+      Test::Fail(tostr() << "Failed to parse statistics schema: "
+                         << rapidjson::GetParseError_En(sd_->GetParseError())
+                         << " at " << sd_->GetErrorOffset());
+
+    schema_    = new rapidjson::SchemaDocument(*sd_);
+    validator_ = new rapidjson::SchemaValidator(*schema_);
+  }
+
+  ~TestSchemaValidator() {
+    if (sd_)
+      delete sd_;
+    if (schema_)
+      delete schema_;
+    if (validator_)
+      delete validator_;
+  }
+
+  void validate(const std::string &json_doc) {
+    /* Parse JSON to validate */
+    rapidjson::Document d;
+    if (d.Parse(json_doc.c_str()).HasParseError())
+      Test::Fail(tostr() << "Failed to parse stats JSON: "
+                         << rapidjson::GetParseError_En(d.GetParseError())
+                         << " at " << d.GetErrorOffset());
+
+    /* Validate using schema */
+    if (!d.Accept(*validator_)) {
+      rapidjson::StringBuffer sb;
+
+      validator_->GetInvalidSchemaPointer().StringifyUriFragment(sb);
+      Test::Say(tostr() << "Schema: " << sb.GetString() << "\n");
+      Test::Say(tostr() << "Invalid keyword: "
+                        << validator_->GetInvalidSchemaKeyword() << "\n");
+      sb.Clear();
+
+      validator_->GetInvalidDocumentPointer().StringifyUriFragment(sb);
+      Test::Say(tostr() << "Invalid document: " << sb.GetString() << "\n");
+      sb.Clear();
+
+      Test::Fail(tostr() << "JSON validation using schema " << schema_path_
+                         << " failed");
+    }
+
+    Test::Say(3, "JSON document validated using schema " + schema_path_ + "\n");
+  }
+
+ private:
+  std::string schema_path_;
+  rapidjson::Document *sd_;
+  rapidjson::SchemaDocument *schema_;
+  rapidjson::SchemaValidator *validator_;
+};
+
+
+#else
+
+/* Dummy validator doing nothing when RapidJSON is unavailable */
+class TestSchemaValidator {
+ public:
+  TestSchemaValidator() {
+  }
+  TestSchemaValidator(const std::string schema_path) {
+  }
+
+  ~TestSchemaValidator() {
+  }
+
+  void validate(const std::string &json_doc) {
+  }
+};
+
+#endif
+
+class myEventCb : public RdKafka::EventCb {
+ public:
+  myEventCb(const std::string schema_path) :
+      validator_(TestSchemaValidator(schema_path)) {
+    stats_cnt = 0;
+  }
+
+  int stats_cnt;
+  std::string last; /**< Last stats document */
+
+  void event_cb(RdKafka::Event &event) {
+    switch (event.type()) {
+    case RdKafka::Event::EVENT_STATS:
+      if (!(stats_cnt % 10))
+        Test::Say(tostr() << "Stats (#" << stats_cnt << "): " << event.str()
+                          << "\n");
+      if (event.str().length() > 20)
+        stats_cnt += 1;
+      validator_.validate(event.str());
+      last = event.str();
+      break;
+    default:
+      break;
+    }
+  }
+
+ private:
+  TestSchemaValidator validator_;
+};
+
+
+/**
+ * @brief Verify that stats are emitted according to statistics.interval.ms
+ */
+void test_stats_timing() {
+  RdKafka::Conf *conf = RdKafka::Conf::create(RdKafka::Conf::CONF_GLOBAL);
+  myEventCb my_event  = myEventCb(stats_schema_path);
+  std::string errstr;
+
+  if (conf->set("statistics.interval.ms", "100", errstr) !=
+      RdKafka::Conf::CONF_OK)
+    Test::Fail(errstr);
+
+  if (conf->set("event_cb", &my_event, errstr) != RdKafka::Conf::CONF_OK)
+    Test::Fail(errstr);
+
+  RdKafka::Producer *p = RdKafka::Producer::create(conf, errstr);
+  if (!p)
+    Test::Fail("Failed to create Producer: " + errstr);
+  delete conf;
+
+  int64_t t_start = test_clock();
+
+  while (my_event.stats_cnt < 12)
+    p->poll(1000);
+
+  int elapsed             = (int)((test_clock() - t_start) / 1000);
+  const int expected_time = 1200;
+
+  Test::Say(tostr() << my_event.stats_cnt
+                    << " (expected 12) stats callbacks received in " << elapsed
+                    << "ms (expected " << expected_time << "ms +-25%)\n");
+
+  if (elapsed < expected_time * 0.75 || elapsed > expected_time * 1.25) {
+    /* We can't rely on CIs giving our test job enough CPU to finish
+     * in time, so don't error out even if the time is outside the window */
+    if (test_on_ci)
+      Test::Say(tostr() << "WARNING: Elapsed time " << elapsed
+                        << "ms outside +-25% window (" << expected_time
+                        << "ms), cnt " << my_event.stats_cnt);
+    else
+      Test::Fail(tostr() << "Elapsed time " << elapsed
+                         << "ms outside +-25% window (" << expected_time
+                         << "ms), cnt " << my_event.stats_cnt);
+  }
+  delete p;
+}
+
+
+
+#if WITH_RAPIDJSON
+
+/**
+ * @brief Expected partition stats
+ */
+struct exp_part_stats {
+  std::string topic; /**< Topic */
+  int32_t part;      /**< Partition id */
+  int msgcnt;        /**< Expected message count */
+  int msgsize;       /**< Expected per message size.
+                      *   This includes both key and value lengths */
+
+  /* Calculated */
+  int64_t totsize; /**< Message size sum */
+};
+
+/**
+ * @brief Verify end-to-end producer and consumer stats.
+ */
+static void verify_e2e_stats(const std::string &prod_stats,
+                             const std::string &cons_stats,
+                             struct exp_part_stats *exp_parts,
+                             int partcnt) {
+  /**
+   * Parse JSON stats
+   * These documents are already validated in the Event callback.
+   */
+  rapidjson::Document p;
+  if (p.Parse<rapidjson::kParseValidateEncodingFlag>(prod_stats.c_str())
+          .HasParseError())
+    Test::Fail(tostr() << "Failed to parse producer stats JSON: "
+                       << rapidjson::GetParseError_En(p.GetParseError())
+                       << " at " << p.GetErrorOffset());
+
+  rapidjson::Document c;
+  if (c.Parse<rapidjson::kParseValidateEncodingFlag>(cons_stats.c_str())
+          .HasParseError())
+    Test::Fail(tostr() << "Failed to parse consumer stats JSON: "
+                       << rapidjson::GetParseError_En(c.GetParseError())
+                       << " at " << c.GetErrorOffset());
+
+  assert(p.HasMember("name"));
+  assert(c.HasMember("name"));
+  assert(p.HasMember("type"));
+  assert(c.HasMember("type"));
+
+  Test::Say(tostr() << "Verifying stats from Producer " << p["name"].GetString()
+                    << " and Consumer " << c["name"].GetString() << "\n");
+
+  assert(!strcmp(p["type"].GetString(), "producer"));
+  assert(!strcmp(c["type"].GetString(), "consumer"));
+
+  int64_t exp_tot_txmsgs      = 0;
+  int64_t exp_tot_txmsg_bytes = 0;
+  int64_t exp_tot_rxmsgs      = 0;
+  int64_t exp_tot_rxmsg_bytes = 0;
+
+  for (int part = 0; part < partcnt; part++) {
+    /*
+     * Find partition stats.
+     */
+
+    /* Construct the partition path. */
+    char path[256];
+    rd_snprintf(path, sizeof(path), "/topics/%s/partitions/%d",
+                exp_parts[part].topic.c_str(), exp_parts[part].part);
+    Test::Say(tostr() << "Looking up partition " << exp_parts[part].part
+                      << " with path " << path << "\n");
+
+    /* Even though GetValueByPointer() takes a "char[]" it can only be used
+     * with perfectly sized char buffers or string literals since it
+     * does not respect NUL terminators.
+     * So instead convert the path to a Pointer.*/
+    rapidjson::Pointer jpath((const char *)path);
+
+    rapidjson::Value *pp = rapidjson::GetValueByPointer(p, jpath);
+    if (!pp)
+      Test::Fail(tostr() << "Producer: could not find " << path << " in "
+                         << prod_stats << "\n");
+
+    rapidjson::Value *cp = rapidjson::GetValueByPointer(c, jpath);
+    if (!pp)
+      Test::Fail(tostr() << "Consumer: could not find " << path << " in "
+                         << cons_stats << "\n");
+
+    assert(pp->HasMember("partition"));
+    assert(pp->HasMember("txmsgs"));
+    assert(pp->HasMember("txbytes"));
+
+    assert(cp->HasMember("partition"));
+    assert(cp->HasMember("rxmsgs"));
+    assert(cp->HasMember("rxbytes"));
+
+    Test::Say(tostr() << "partition: " << (*pp)["partition"].GetInt() << "\n");
+
+    int64_t txmsgs  = (*pp)["txmsgs"].GetInt();
+    int64_t txbytes = (*pp)["txbytes"].GetInt();
+    int64_t rxmsgs  = (*cp)["rxmsgs"].GetInt();
+    int64_t rxbytes = (*cp)["rxbytes"].GetInt();
+
+    exp_tot_txmsgs += txmsgs;
+    exp_tot_txmsg_bytes += txbytes;
+    exp_tot_rxmsgs += rxmsgs;
+    exp_tot_rxmsg_bytes += rxbytes;
+
+    Test::Say(tostr() << "Producer partition: " << (*pp)["partition"].GetInt()
+                      << ": "
+                      << "txmsgs: " << txmsgs << " vs "
+                      << exp_parts[part].msgcnt << ", "
+                      << "txbytes: " << txbytes << " vs "
+                      << exp_parts[part].totsize << "\n");
+    Test::Say(tostr() << "Consumer partition: " << (*cp)["partition"].GetInt()
+                      << ": "
+                      << "rxmsgs: " << rxmsgs << " vs "
+                      << exp_parts[part].msgcnt << ", "
+                      << "rxbytes: " << rxbytes << " vs "
+                      << exp_parts[part].totsize << "\n");
+  }
+
+  /* Check top-level total stats */
+
+  assert(p.HasMember("txmsgs"));
+  assert(p.HasMember("txmsg_bytes"));
+  assert(p.HasMember("rxmsgs"));
+  assert(p.HasMember("rxmsg_bytes"));
+
+  int64_t tot_txmsgs      = p["txmsgs"].GetInt();
+  int64_t tot_txmsg_bytes = p["txmsg_bytes"].GetInt();
+  int64_t tot_rxmsgs      = c["rxmsgs"].GetInt();
+  int64_t tot_rxmsg_bytes = c["rxmsg_bytes"].GetInt();
+
+  Test::Say(tostr() << "Producer total: "
+                    << "txmsgs: " << tot_txmsgs << " vs " << exp_tot_txmsgs
+                    << ", "
+                    << "txbytes: " << tot_txmsg_bytes << " vs "
+                    << exp_tot_txmsg_bytes << "\n");
+  Test::Say(tostr() << "Consumer total: "
+                    << "rxmsgs: " << tot_rxmsgs << " vs " << exp_tot_rxmsgs
+                    << ", "
+                    << "rxbytes: " << tot_rxmsg_bytes << " vs "
+                    << exp_tot_rxmsg_bytes << "\n");
+}
+
+/**
+ * @brief Verify stats JSON structure and individual metric fields.
+ *
+ * To capture as much verifiable data as possible we run a full
+ * producer - consumer end to end test and verify that counters
+ * and states are emitted accordingly.
+ *
+ * Requires RapidJSON (for parsing the stats).
+ */
+static void test_stats() {
+  std::string errstr;
+  RdKafka::Conf *conf;
+  myEventCb producer_event(stats_schema_path);
+  myEventCb consumer_event(stats_schema_path);
+
+  std::string topic = Test::mk_topic_name("0053_stats", 1);
+
+  const int partcnt = 2;
+  int msgcnt        = (test_quick ? 10 : 100) * partcnt;
+  const int msgsize = 6 * 1024;
+
+  /*
+   * Common config for producer and consumer
+   */
+  Test::conf_init(&conf, NULL, 60);
+  if (conf->set("statistics.interval.ms", "1000", errstr) !=
+      RdKafka::Conf::CONF_OK)
+    Test::Fail(errstr);
+
+
+  /*
+   * Create Producer
+   */
+  if (conf->set("event_cb", &producer_event, errstr) != RdKafka::Conf::CONF_OK)
+    Test::Fail(errstr);
+
+  RdKafka::Producer *p = RdKafka::Producer::create(conf, errstr);
+  if (!p)
+    Test::Fail("Failed to create Producer: " + errstr);
+
+
+  /*
+   * Create Consumer
+   */
+  conf->set("group.id", topic, errstr);
+  conf->set("auto.offset.reset", "earliest", errstr);
+  conf->set("enable.partition.eof", "false", errstr);
+  if (conf->set("event_cb", &consumer_event, errstr) != RdKafka::Conf::CONF_OK)
+    Test::Fail(errstr);
+
+  RdKafka::KafkaConsumer *c = RdKafka::KafkaConsumer::create(conf, errstr);
+  if (!c)
+    Test::Fail("Failed to create KafkaConsumer: " + errstr);
+  delete conf;
+
+  /*
+   * Set up consumer assignment (but assign after producing
+   * since there will be no topics now) and expected partitions
+   * for later verification.
+   */
+  std::vector<RdKafka::TopicPartition *> toppars;
+  struct exp_part_stats exp_parts[partcnt] = {};
+
+  for (int32_t part = 0; part < (int32_t)partcnt; part++) {
+    toppars.push_back(RdKafka::TopicPartition::create(
+        topic, part, RdKafka::Topic::OFFSET_BEGINNING));
+    exp_parts[part].topic   = topic;
+    exp_parts[part].part    = part;
+    exp_parts[part].msgcnt  = msgcnt / partcnt;
+    exp_parts[part].msgsize = msgsize;
+    exp_parts[part].totsize = 0;
+  }
+
+  /*
+   * Produce messages
+   */
+  uint64_t testid = test_id_generate();
+
+  char key[256];
+  char *buf = (char *)malloc(msgsize);
+
+  for (int32_t part = 0; part < (int32_t)partcnt; part++) {
+    for (int i = 0; i < msgcnt / partcnt; i++) {
+      test_prepare_msg(testid, part, i, buf, msgsize, key, sizeof(key));
+      RdKafka::ErrorCode err =
+          p->produce(topic, part, RdKafka::Producer::RK_MSG_COPY, buf, msgsize,
+                     key, sizeof(key), -1, NULL);
+      if (err)
+        Test::Fail("Produce failed: " + RdKafka::err2str(err));
+      exp_parts[part].totsize += msgsize + sizeof(key);
+      p->poll(0);
+    }
+  }
+
+  free(buf);
+
+  Test::Say("Waiting for final message delivery\n");
+  /* Wait for delivery */
+  p->flush(15 * 1000);
+
+  /*
+   * Start consuming partitions
+   */
+  c->assign(toppars);
+  RdKafka::TopicPartition::destroy(toppars);
+
+  /*
+   * Consume the messages
+   */
+  int recvcnt = 0;
+  Test::Say(tostr() << "Consuming " << msgcnt << " messages\n");
+  while (recvcnt < msgcnt) {
+    RdKafka::Message *msg = c->consume(-1);
+    if (msg->err())
+      Test::Fail("Consume failed: " + msg->errstr());
+
+    int msgid;
+    TestMessageVerify(testid, -1, &msgid, msg);
+    recvcnt++;
+    delete msg;
+  }
+
+  /*
+   * Producer:
+   * Wait for one last stats emit when all messages have been delivered.
+   */
+  int prev_cnt = producer_event.stats_cnt;
+  while (prev_cnt == producer_event.stats_cnt) {
+    Test::Say("Waiting for final producer stats event\n");
+    p->poll(100);
+  }
+
+  /*
+   * Consumer:
+   * Wait for a one last stats emit when all messages have been received,
+   * since previous stats may have been enqueued but not served we
+   * skip the first 2.
+   */
+  prev_cnt = consumer_event.stats_cnt;
+  while (prev_cnt + 2 >= consumer_event.stats_cnt) {
+    Test::Say(tostr() << "Waiting for final consumer stats event: "
+                      << consumer_event.stats_cnt << "\n");
+    c->poll(100);
+  }
+
+
+  verify_e2e_stats(producer_event.last, consumer_event.last, exp_parts,
+                   partcnt);
+
+
+  c->close();
+
+  delete p;
+  delete c;
+}
+#endif
+
+extern "C" {
+int main_0053_stats_timing(int argc, char **argv) {
+  test_stats_timing();
+  return 0;
+}
+
+int main_0053_stats(int argc, char **argv) {
+#if WITH_RAPIDJSON
+  test_stats();
+#else
+  Test::Skip("RapidJSON >=1.1.0 not available\n");
+#endif
+  return 0;
+}
+}