/**
* Abstract method Implementation - See MsgBusInterface.hpp for details
*
* TODO: Consolidate this to single produce method
*/
void msgBus_kafka::send_bmp_raw(u_char *r_hash, obj_bgp_peer &peer, u_char *data, size_t data_len) {
string r_hash_str;
string p_hash_str;
RdKafka::Topic *topic = NULL;
hash_toStr(peer.hash_id, p_hash_str);
hash_toStr(r_hash, r_hash_str);
if (data_len == 0)
return;
while (isConnected == false) {
LOG_WARN("rtr=%s: Not connected to Kafka, attempting to reconnect", router_ip.c_str());
connect();
sleep(2);
}
char headers[256];
size_t hdr_len = snprintf(headers, sizeof(headers), "V: %s\nC_HASH_ID: %s\nR_HASH: %s\nR_IP: %s\nL: %lu\n\n",
MSGBUS_API_VERSION, collector_hash.c_str(), r_hash_str.c_str(), router_ip.c_str(), data_len);
memcpy(producer_buf, headers, hdr_len);
memcpy(producer_buf+hdr_len, data, data_len);
topic = topicSel->getTopic(MSGBUS_TOPIC_VAR_BMP_RAW, &router_group_name, &peer_list[p_hash_str], peer.peer_as);
if (topic != NULL) {
SELF_DEBUG("rtr=%s: Producing bmp raw message: topic=%s key=%s, msg size = %lu", router_ip.c_str(),
topic->name().c_str(), r_hash_str.c_str(), data_len);
RdKafka::ErrorCode resp = producer->produce(topic, RdKafka::Topic::PARTITION_UA,
RdKafka::Producer::RK_MSG_COPY /* Copy payload */,
producer_buf, data_len + hdr_len,
(const std::string *)&r_hash_str, NULL);
if (resp != RdKafka::ERR_NO_ERROR)
LOG_ERR("rtr=%s: Failed to produce bmp raw message: %s", router_ip.c_str(), RdKafka::err2str(resp).c_str());
}
else {
SELF_DEBUG("rtr=%s: failed to produce bmp raw message because topic couldn't be found: topic=%s key=%s, msg size = %lu",
router_ip.c_str(), MSGBUS_TOPIC_VAR_BMP_RAW, r_hash_str.c_str(), data_len);
}
producer->poll(0);
}
/**
* produce message to Kafka
*
* \param [in] topic_var Topic var to use in KafkaTopicSelector::getTopic() MSGBUS_TOPIC_VAR_*
* \param [in] msg message to produce
* \param [in] msg_size Length in bytes of the message
* \param [in] rows Number of rows
* \param [in] key Hash key
* \param [in] peer_group Peer group name - empty/NULL if not set or used
* \param [in] peer_asn Peer ASN
*/
void msgBus_kafka::produce(const char *topic_var, char *msg, size_t msg_size, int rows, string key,
const string *peer_group, uint32_t peer_asn) {
size_t len;
RdKafka::Topic *topic = NULL;
while (isConnected == false or topicSel == NULL) {
// Do not attempt to reconnect if this is the main process (router ip is null)
// Changed on 10/29/15 to support docker startup delay with kafka
/*
if (router_ip.size() <= 0) {
return;
}*/
LOG_WARN("rtr=%s: Not connected to Kafka, attempting to reconnect", router_ip.c_str());
connect();
sleep(1);
}
char headers[256];
len = snprintf(headers, sizeof(headers), "V: %s\nC_HASH_ID: %s\nL: %lu\nR: %d\n\n",
MSGBUS_API_VERSION, collector_hash.c_str(), msg_size, rows);
memcpy(producer_buf, headers, len);
memcpy(producer_buf+len, msg, msg_size);
topic = topicSel->getTopic(topic_var, &router_group_name, peer_group, peer_asn);
if (topic != NULL) {
SELF_DEBUG("rtr=%s: Producing message: topic=%s key=%s, msg size = %lu", router_ip.c_str(),
topic->name().c_str(), key.c_str(), msg_size);
RdKafka::ErrorCode resp = producer->produce(topic, RdKafka::Topic::PARTITION_UA,
RdKafka::Producer::RK_MSG_COPY,
producer_buf, msg_size + len,
(const std::string *) &key, NULL);
if (resp != RdKafka::ERR_NO_ERROR)
LOG_ERR("rtr=%s: Failed to produce message: %s", router_ip.c_str(), RdKafka::err2str(resp).c_str());
} else {
LOG_NOTICE("rtr=%s: failed to produce message because topic couldn't be found: topic=%s key=%s, msg size = %lu", router_ip.c_str(),
topic_var, key.c_str(), msg_size);
}
producer->poll(0);
}
int main (int argc, char **argv) {
std::string brokers = "localhost";
std::string errstr;
std::vector<std::string> topics;
std::string conf_file;
std::string mode = "P";
int throughput = 0;
int32_t partition = RdKafka::Topic::PARTITION_UA;
bool do_conf_dump = false;
MyHashPartitionerCb hash_partitioner;
/*
* Create configuration objects
*/
RdKafka::Conf *conf = RdKafka::Conf::create(RdKafka::Conf::CONF_GLOBAL);
RdKafka::Conf *tconf = RdKafka::Conf::create(RdKafka::Conf::CONF_TOPIC);
{
char hostname[128];
gethostname(hostname, sizeof(hostname)-1);
conf->set("client.id", std::string("rdkafka@") + hostname, errstr);
}
conf->set("debug", "cgrp,topic", errstr);
for (int i = 1 ; i < argc ; i++) {
const char *name = argv[i];
const char *val = i+1 < argc ? argv[i+1] : NULL;
if (val && !strncmp(val, "--", 2))
val = NULL;
std::cout << now() << ": argument: " << name << " " <<
(val?val:"") << std::endl;
if (val) {
if (!strcmp(name, "--topic"))
topics.push_back(val);
else if (!strcmp(name, "--broker-list"))
brokers = val;
else if (!strcmp(name, "--max-messages"))
state.maxMessages = atoi(val);
else if (!strcmp(name, "--throughput"))
throughput = atoi(val);
else if (!strcmp(name, "--producer.config") ||
!strcmp(name, "--consumer.config"))
read_conf_file(val);
else if (!strcmp(name, "--group-id"))
conf->set("group.id", val, errstr);
else if (!strcmp(name, "--session-timeout"))
conf->set("session.timeout.ms", val, errstr);
else if (!strcmp(name, "--reset-policy")) {
if (tconf->set("auto.offset.reset", val, errstr)) {
std::cerr << now() << ": " << errstr << std::endl;
exit(1);
}
} else if (!strcmp(name, "--debug")) {
conf->set("debug", val, errstr);
} else {
std::cerr << now() << ": Unknown option " << name << std::endl;
exit(1);
}
i++;
} else {
if (!strcmp(name, "--consumer"))
mode = "C";
else if (!strcmp(name, "--producer"))
mode = "P";
else if (!strcmp(name, "--enable-autocommit")) {
state.consumer.useAutoCommit = true;
conf->set("enable.auto.commit", "true", errstr);
} else {
std::cerr << now() << ": Unknown option or missing argument to " << name << std::endl;
exit(1);
}
}
}
if (topics.empty() || brokers.empty()) {
std::cerr << now() << ": Missing --topic and --broker-list" << std::endl;
exit(1);
}
/*
* Set configuration properties
*/
conf->set("metadata.broker.list", brokers, errstr);
ExampleEventCb ex_event_cb;
conf->set("event_cb", &ex_event_cb, errstr);
if (do_conf_dump) {
int pass;
for (pass = 0 ; pass < 2 ; pass++) {
std::list<std::string> *dump;
if (pass == 0) {
dump = conf->dump();
std::cerr << now() << ": # Global config" << std::endl;
} else {
dump = tconf->dump();
std::cerr << now() << ": # Topic config" << std::endl;
}
for (std::list<std::string>::iterator it = dump->begin();
it != dump->end(); ) {
std::cerr << *it << " = ";
it++;
std::cerr << *it << std::endl;
it++;
}
std::cerr << std::endl;
}
exit(0);
}
signal(SIGINT, sigterm);
signal(SIGTERM, sigterm);
signal(SIGALRM, sigwatchdog);
if (mode == "P") {
/*
* Producer mode
*/
ExampleDeliveryReportCb ex_dr_cb;
/* Set delivery report callback */
conf->set("dr_cb", &ex_dr_cb, errstr);
/*
* Create producer using accumulated global configuration.
*/
RdKafka::Producer *producer = RdKafka::Producer::create(conf, errstr);
if (!producer) {
std::cerr << now() << ": Failed to create producer: " << errstr << std::endl;
exit(1);
}
std::cerr << now() << ": % Created producer " << producer->name() << std::endl;
/*
* Create topic handle.
*/
RdKafka::Topic *topic = RdKafka::Topic::create(producer, topics[0],
tconf, errstr);
if (!topic) {
std::cerr << now() << ": Failed to create topic: " << errstr << std::endl;
exit(1);
}
static const int delay_us = throughput ? 1000000/throughput : 0;
if (state.maxMessages == -1)
state.maxMessages = 1000000; /* Avoid infinite produce */
for (int i = 0 ; run && i < state.maxMessages ; i++) {
/*
* Produce message
*/
std::ostringstream msg;
msg << i;
RdKafka::ErrorCode resp =
producer->produce(topic, partition,
RdKafka::Producer::RK_MSG_COPY /* Copy payload */,
const_cast<char *>(msg.str().c_str()),
msg.str().size(), NULL, NULL);
if (resp != RdKafka::ERR_NO_ERROR) {
errorString("producer_send_error",
RdKafka::err2str(resp), topic->name(), NULL, msg.str());
state.producer.numErr++;
} else {
std::cerr << now() << ": % Produced message (" <<
msg.str().size() << " bytes)" << std::endl;
state.producer.numSent++;
}
producer->poll(delay_us / 1000);
watchdog_kick();
}
run = true;
while (run && producer->outq_len() > 0) {
std::cerr << now() << ": Waiting for " << producer->outq_len() << std::endl;
producer->poll(50);
watchdog_kick();
}
std::cerr << now() << ": " << state.producer.numAcked << "/" <<
state.producer.numSent << "/" << state.maxMessages <<
" msgs acked/sent/max, " << state.producer.numErr <<
" errored" << std::endl;
delete topic;
delete producer;
} else if (mode == "C") {
/*
* Consumer mode
*/
tconf->set("auto.offset.reset", "smallest", errstr);
/* Set default topic config */
conf->set("default_topic_conf", tconf, errstr);
ExampleRebalanceCb ex_rebalance_cb;
conf->set("rebalance_cb", &ex_rebalance_cb, errstr);
ExampleOffsetCommitCb ex_offset_commit_cb;
conf->set("offset_commit_cb", &ex_offset_commit_cb, errstr);
/*
* Create consumer using accumulated global configuration.
*/
consumer = RdKafka::KafkaConsumer::create(conf, errstr);
if (!consumer) {
std::cerr << now() << ": Failed to create consumer: " <<
errstr << std::endl;
exit(1);
}
std::cerr << now() << ": % Created consumer " << consumer->name() <<
std::endl;
/*
* Subscribe to topic(s)
*/
RdKafka::ErrorCode resp = consumer->subscribe(topics);
if (resp != RdKafka::ERR_NO_ERROR) {
std::cerr << now() << ": Failed to subscribe to " << topics.size() << " topics: "
<< RdKafka::err2str(resp) << std::endl;
exit(1);
}
/*
* Consume messages
*/
while (run) {
RdKafka::Message *msg = consumer->consume(500);
msg_consume(consumer, msg, NULL);
delete msg;
watchdog_kick();
}
/* Final commit */
do_commit(consumer, 1);
/*
* Stop consumer
*/
consumer->close();
delete consumer;
}
/*
* Wait for RdKafka to decommission.
* This is not strictly needed (when check outq_len() above), but
* allows RdKafka to clean up all its resources before the application
* exits so that memory profilers such as valgrind wont complain about
* memory leaks.
*/
RdKafka::wait_destroyed(5000);
std::cerr << now() << ": EXITING WITH RETURN VALUE 0" << std::endl;
return 0;
}