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rdkafka.c
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/*
* librdkafka - Apache Kafka C library
*
* Copyright (c) 2012-2013, 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.
*/
#define _GNU_SOURCE
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/stat.h>
#include "rdkafka_int.h"
#include "rdkafka_msg.h"
#include "rdkafka_broker.h"
#include "rdkafka_topic.h"
#include "rdkafka_partition.h"
#include "rdkafka_offset.h"
#include "rdkafka_transport.h"
#include "rdkafka_cgrp.h"
#include "rdkafka_assignor.h"
#include "rdkafka_request.h"
#include "rdkafka_event.h"
#include "rdkafka_sasl.h"
#include "rdkafka_interceptor.h"
#include "rdkafka_idempotence.h"
#include "rdkafka_sasl_oauthbearer.h"
#include "rdtime.h"
#include "crc32c.h"
#include "rdunittest.h"
#ifdef _MSC_VER
#include <sys/types.h>
#include <sys/timeb.h>
#endif
static once_flag rd_kafka_global_init_once = ONCE_FLAG_INIT;
/**
* @brief Global counter+lock for all active librdkafka instances
*/
mtx_t rd_kafka_global_lock;
int rd_kafka_global_cnt;
/**
* Last API error code, per thread.
* Shared among all rd_kafka_t instances.
*/
rd_kafka_resp_err_t RD_TLS rd_kafka_last_error_code;
/**
* Current number of threads created by rdkafka.
* This is used in regression tests.
*/
rd_atomic32_t rd_kafka_thread_cnt_curr;
int rd_kafka_thread_cnt (void) {
#if ENABLE_SHAREDPTR_DEBUG
rd_shared_ptrs_dump();
#endif
return rd_atomic32_get(&rd_kafka_thread_cnt_curr);
}
/**
* Current thread's log name (TLS)
*/
static char RD_TLS rd_kafka_thread_name[64] = "app";
void rd_kafka_set_thread_name (const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
rd_vsnprintf(rd_kafka_thread_name, sizeof(rd_kafka_thread_name),
fmt, ap);
va_end(ap);
}
/**
* @brief Current thread's system name (TLS)
*
* Note the name must be 15 characters or less, because it is passed to
* pthread_setname_np on Linux which imposes this limit.
*/
static char RD_TLS rd_kafka_thread_sysname[16] = "app";
void rd_kafka_set_thread_sysname (const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
rd_vsnprintf(rd_kafka_thread_sysname, sizeof(rd_kafka_thread_sysname),
fmt, ap);
va_end(ap);
thrd_setname(rd_kafka_thread_sysname);
}
static void rd_kafka_global_init (void) {
#if ENABLE_SHAREDPTR_DEBUG
LIST_INIT(&rd_shared_ptr_debug_list);
mtx_init(&rd_shared_ptr_debug_mtx, mtx_plain);
atexit(rd_shared_ptrs_dump);
#endif
mtx_init(&rd_kafka_global_lock, mtx_plain);
#if ENABLE_DEVEL
rd_atomic32_init(&rd_kafka_op_cnt, 0);
#endif
crc32c_global_init();
}
/**
* @returns the current number of active librdkafka instances
*/
static int rd_kafka_global_cnt_get (void) {
int r;
mtx_lock(&rd_kafka_global_lock);
r = rd_kafka_global_cnt;
mtx_unlock(&rd_kafka_global_lock);
return r;
}
/**
* @brief Increase counter for active librdkafka instances.
* If this is the first instance the global constructors will be called, if any.
*/
static void rd_kafka_global_cnt_incr (void) {
mtx_lock(&rd_kafka_global_lock);
rd_kafka_global_cnt++;
if (rd_kafka_global_cnt == 1) {
rd_kafka_transport_init();
#if WITH_SSL
rd_kafka_transport_ssl_init();
#endif
rd_kafka_sasl_global_init();
}
mtx_unlock(&rd_kafka_global_lock);
}
/**
* @brief Decrease counter for active librdkafka instances.
* If this counter reaches 0 the global destructors will be called, if any.
*/
static void rd_kafka_global_cnt_decr (void) {
mtx_lock(&rd_kafka_global_lock);
rd_kafka_assert(NULL, rd_kafka_global_cnt > 0);
rd_kafka_global_cnt--;
if (rd_kafka_global_cnt == 0) {
rd_kafka_sasl_global_term();
#if WITH_SSL
rd_kafka_transport_ssl_term();
#endif
}
mtx_unlock(&rd_kafka_global_lock);
}
/**
* Wait for all rd_kafka_t objects to be destroyed.
* Returns 0 if all kafka objects are now destroyed, or -1 if the
* timeout was reached.
*/
int rd_kafka_wait_destroyed (int timeout_ms) {
rd_ts_t timeout = rd_clock() + (timeout_ms * 1000);
while (rd_kafka_thread_cnt() > 0 ||
rd_kafka_global_cnt_get() > 0) {
if (rd_clock() >= timeout) {
rd_kafka_set_last_error(RD_KAFKA_RESP_ERR__TIMED_OUT,
ETIMEDOUT);
#if ENABLE_SHAREDPTR_DEBUG
rd_shared_ptrs_dump();
#endif
return -1;
}
rd_usleep(25000, NULL); /* 25ms */
}
return 0;
}
static void rd_kafka_log_buf (const rd_kafka_conf_t *conf,
const rd_kafka_t *rk, int level, const char *fac,
const char *buf) {
if (level > conf->log_level)
return;
else if (rk && conf->log_queue) {
rd_kafka_op_t *rko;
if (!rk->rk_logq)
return; /* Terminating */
rko = rd_kafka_op_new(RD_KAFKA_OP_LOG);
rd_kafka_op_set_prio(rko, RD_KAFKA_PRIO_MEDIUM);
rko->rko_u.log.level = level;
strncpy(rko->rko_u.log.fac, fac,
sizeof(rko->rko_u.log.fac) - 1);
rko->rko_u.log.str = rd_strdup(buf);
rd_kafka_q_enq(rk->rk_logq, rko);
} else if (conf->log_cb) {
conf->log_cb(rk, level, fac, buf);
}
}
/**
* @brief Logger
*
* @remark conf must be set, but rk may be NULL
*/
void rd_kafka_log0 (const rd_kafka_conf_t *conf,
const rd_kafka_t *rk,
const char *extra, int level,
const char *fac, const char *fmt, ...) {
char buf[2048];
va_list ap;
unsigned int elen = 0;
unsigned int of = 0;
if (level > conf->log_level)
return;
if (conf->log_thread_name) {
elen = rd_snprintf(buf, sizeof(buf), "[thrd:%s]: ",
rd_kafka_thread_name);
if (unlikely(elen >= sizeof(buf)))
elen = sizeof(buf);
of = elen;
}
if (extra) {
elen = rd_snprintf(buf+of, sizeof(buf)-of, "%s: ", extra);
if (unlikely(elen >= sizeof(buf)-of))
elen = sizeof(buf)-of;
of += elen;
}
va_start(ap, fmt);
rd_vsnprintf(buf+of, sizeof(buf)-of, fmt, ap);
va_end(ap);
rd_kafka_log_buf(conf, rk, level, fac, buf);
}
rd_kafka_resp_err_t
rd_kafka_oauthbearer_set_token (rd_kafka_t *rk,
const char *token_value,
int64_t md_lifetime_ms,
const char *md_principal_name,
const char **extensions, size_t extension_size,
char *errstr, size_t errstr_size) {
#if WITH_SASL_OAUTHBEARER
return rd_kafka_oauthbearer_set_token0(
rk, token_value,
md_lifetime_ms, md_principal_name, extensions, extension_size,
errstr, errstr_size);
#else
rd_snprintf(errstr, errstr_size,
"librdkafka not built with SASL OAUTHBEARER support");
return RD_KAFKA_RESP_ERR__NOT_IMPLEMENTED;
#endif
}
rd_kafka_resp_err_t
rd_kafka_oauthbearer_set_token_failure (rd_kafka_t *rk, const char *errstr) {
#if WITH_SASL_OAUTHBEARER
return rd_kafka_oauthbearer_set_token_failure0(rk, errstr);
#else
return RD_KAFKA_RESP_ERR__NOT_IMPLEMENTED;
#endif
}
void rd_kafka_log_print(const rd_kafka_t *rk, int level,
const char *fac, const char *buf) {
int secs, msecs;
struct timeval tv;
rd_gettimeofday(&tv, NULL);
secs = (int)tv.tv_sec;
msecs = (int)(tv.tv_usec / 1000);
fprintf(stderr, "%%%i|%u.%03u|%s|%s| %s\n",
level, secs, msecs,
fac, rk ? rk->rk_name : "", buf);
}
#ifndef _MSC_VER
void rd_kafka_log_syslog (const rd_kafka_t *rk, int level,
const char *fac, const char *buf) {
static int initialized = 0;
if (!initialized)
openlog("rdkafka", LOG_PID|LOG_CONS, LOG_USER);
syslog(level, "%s: %s: %s", fac, rk ? rk->rk_name : "", buf);
}
#endif
void rd_kafka_set_logger (rd_kafka_t *rk,
void (*func) (const rd_kafka_t *rk, int level,
const char *fac, const char *buf)) {
rk->rk_conf.log_cb = func;
}
void rd_kafka_set_log_level (rd_kafka_t *rk, int level) {
rk->rk_conf.log_level = level;
}
static const char *rd_kafka_type2str (rd_kafka_type_t type) {
static const char *types[] = {
[RD_KAFKA_PRODUCER] = "producer",
[RD_KAFKA_CONSUMER] = "consumer",
};
return types[type];
}
#define _ERR_DESC(ENUM,DESC) \
[ENUM - RD_KAFKA_RESP_ERR__BEGIN] = { ENUM, # ENUM + 18/*pfx*/, DESC }
static const struct rd_kafka_err_desc rd_kafka_err_descs[] = {
_ERR_DESC(RD_KAFKA_RESP_ERR__BEGIN, NULL),
_ERR_DESC(RD_KAFKA_RESP_ERR__BAD_MSG,
"Local: Bad message format"),
_ERR_DESC(RD_KAFKA_RESP_ERR__BAD_COMPRESSION,
"Local: Invalid compressed data"),
_ERR_DESC(RD_KAFKA_RESP_ERR__DESTROY,
"Local: Broker handle destroyed"),
_ERR_DESC(RD_KAFKA_RESP_ERR__FAIL,
"Local: Communication failure with broker"), //FIXME: too specific
_ERR_DESC(RD_KAFKA_RESP_ERR__TRANSPORT,
"Local: Broker transport failure"),
_ERR_DESC(RD_KAFKA_RESP_ERR__CRIT_SYS_RESOURCE,
"Local: Critical system resource failure"),
_ERR_DESC(RD_KAFKA_RESP_ERR__RESOLVE,
"Local: Host resolution failure"),
_ERR_DESC(RD_KAFKA_RESP_ERR__MSG_TIMED_OUT,
"Local: Message timed out"),
_ERR_DESC(RD_KAFKA_RESP_ERR__PARTITION_EOF,
"Broker: No more messages"),
_ERR_DESC(RD_KAFKA_RESP_ERR__UNKNOWN_PARTITION,
"Local: Unknown partition"),
_ERR_DESC(RD_KAFKA_RESP_ERR__FS,
"Local: File or filesystem error"),
_ERR_DESC(RD_KAFKA_RESP_ERR__UNKNOWN_TOPIC,
"Local: Unknown topic"),
_ERR_DESC(RD_KAFKA_RESP_ERR__ALL_BROKERS_DOWN,
"Local: All broker connections are down"),
_ERR_DESC(RD_KAFKA_RESP_ERR__INVALID_ARG,
"Local: Invalid argument or configuration"),
_ERR_DESC(RD_KAFKA_RESP_ERR__TIMED_OUT,
"Local: Timed out"),
_ERR_DESC(RD_KAFKA_RESP_ERR__QUEUE_FULL,
"Local: Queue full"),
_ERR_DESC(RD_KAFKA_RESP_ERR__ISR_INSUFF,
"Local: ISR count insufficient"),
_ERR_DESC(RD_KAFKA_RESP_ERR__NODE_UPDATE,
"Local: Broker node update"),
_ERR_DESC(RD_KAFKA_RESP_ERR__SSL,
"Local: SSL error"),
_ERR_DESC(RD_KAFKA_RESP_ERR__WAIT_COORD,
"Local: Waiting for coordinator"),
_ERR_DESC(RD_KAFKA_RESP_ERR__UNKNOWN_GROUP,
"Local: Unknown group"),
_ERR_DESC(RD_KAFKA_RESP_ERR__IN_PROGRESS,
"Local: Operation in progress"),
_ERR_DESC(RD_KAFKA_RESP_ERR__PREV_IN_PROGRESS,
"Local: Previous operation in progress"),
_ERR_DESC(RD_KAFKA_RESP_ERR__EXISTING_SUBSCRIPTION,
"Local: Existing subscription"),
_ERR_DESC(RD_KAFKA_RESP_ERR__ASSIGN_PARTITIONS,
"Local: Assign partitions"),
_ERR_DESC(RD_KAFKA_RESP_ERR__REVOKE_PARTITIONS,
"Local: Revoke partitions"),
_ERR_DESC(RD_KAFKA_RESP_ERR__CONFLICT,
"Local: Conflicting use"),
_ERR_DESC(RD_KAFKA_RESP_ERR__STATE,
"Local: Erroneous state"),
_ERR_DESC(RD_KAFKA_RESP_ERR__UNKNOWN_PROTOCOL,
"Local: Unknown protocol"),
_ERR_DESC(RD_KAFKA_RESP_ERR__NOT_IMPLEMENTED,
"Local: Not implemented"),
_ERR_DESC(RD_KAFKA_RESP_ERR__AUTHENTICATION,
"Local: Authentication failure"),
_ERR_DESC(RD_KAFKA_RESP_ERR__NO_OFFSET,
"Local: No offset stored"),
_ERR_DESC(RD_KAFKA_RESP_ERR__OUTDATED,
"Local: Outdated"),
_ERR_DESC(RD_KAFKA_RESP_ERR__TIMED_OUT_QUEUE,
"Local: Timed out in queue"),
_ERR_DESC(RD_KAFKA_RESP_ERR__UNSUPPORTED_FEATURE,
"Local: Required feature not supported by broker"),
_ERR_DESC(RD_KAFKA_RESP_ERR__WAIT_CACHE,
"Local: Awaiting cache update"),
_ERR_DESC(RD_KAFKA_RESP_ERR__INTR,
"Local: Operation interrupted"),
_ERR_DESC(RD_KAFKA_RESP_ERR__KEY_SERIALIZATION,
"Local: Key serialization error"),
_ERR_DESC(RD_KAFKA_RESP_ERR__VALUE_SERIALIZATION,
"Local: Value serialization error"),
_ERR_DESC(RD_KAFKA_RESP_ERR__KEY_DESERIALIZATION,
"Local: Key deserialization error"),
_ERR_DESC(RD_KAFKA_RESP_ERR__VALUE_DESERIALIZATION,
"Local: Value deserialization error"),
_ERR_DESC(RD_KAFKA_RESP_ERR__PARTIAL,
"Local: Partial response"),
_ERR_DESC(RD_KAFKA_RESP_ERR__READ_ONLY,
"Local: Read-only object"),
_ERR_DESC(RD_KAFKA_RESP_ERR__NOENT,
"Local: No such entry"),
_ERR_DESC(RD_KAFKA_RESP_ERR__UNDERFLOW,
"Local: Read underflow"),
_ERR_DESC(RD_KAFKA_RESP_ERR__INVALID_TYPE,
"Local: Invalid type"),
_ERR_DESC(RD_KAFKA_RESP_ERR__RETRY,
"Local: Retry operation"),
_ERR_DESC(RD_KAFKA_RESP_ERR__PURGE_QUEUE,
"Local: Purged in queue"),
_ERR_DESC(RD_KAFKA_RESP_ERR__PURGE_INFLIGHT,
"Local: Purged in flight"),
_ERR_DESC(RD_KAFKA_RESP_ERR__FATAL,
"Local: Fatal error"),
_ERR_DESC(RD_KAFKA_RESP_ERR__INCONSISTENT,
"Local: Inconsistent state"),
_ERR_DESC(RD_KAFKA_RESP_ERR__GAPLESS_GUARANTEE,
"Local: Gap-less ordering would not be guaranteed "
"if proceeding"),
_ERR_DESC(RD_KAFKA_RESP_ERR__MAX_POLL_EXCEEDED,
"Local: Maximum application poll interval "
"(max.poll.interval.ms) exceeded"),
_ERR_DESC(RD_KAFKA_RESP_ERR_UNKNOWN,
"Unknown broker error"),
_ERR_DESC(RD_KAFKA_RESP_ERR_NO_ERROR,
"Success"),
_ERR_DESC(RD_KAFKA_RESP_ERR_OFFSET_OUT_OF_RANGE,
"Broker: Offset out of range"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_MSG,
"Broker: Invalid message"),
_ERR_DESC(RD_KAFKA_RESP_ERR_UNKNOWN_TOPIC_OR_PART,
"Broker: Unknown topic or partition"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_MSG_SIZE,
"Broker: Invalid message size"),
_ERR_DESC(RD_KAFKA_RESP_ERR_LEADER_NOT_AVAILABLE,
"Broker: Leader not available"),
_ERR_DESC(RD_KAFKA_RESP_ERR_NOT_LEADER_FOR_PARTITION,
"Broker: Not leader for partition"),
_ERR_DESC(RD_KAFKA_RESP_ERR_REQUEST_TIMED_OUT,
"Broker: Request timed out"),
_ERR_DESC(RD_KAFKA_RESP_ERR_BROKER_NOT_AVAILABLE,
"Broker: Broker not available"),
_ERR_DESC(RD_KAFKA_RESP_ERR_REPLICA_NOT_AVAILABLE,
"Broker: Replica not available"),
_ERR_DESC(RD_KAFKA_RESP_ERR_MSG_SIZE_TOO_LARGE,
"Broker: Message size too large"),
_ERR_DESC(RD_KAFKA_RESP_ERR_STALE_CTRL_EPOCH,
"Broker: StaleControllerEpochCode"),
_ERR_DESC(RD_KAFKA_RESP_ERR_OFFSET_METADATA_TOO_LARGE,
"Broker: Offset metadata string too large"),
_ERR_DESC(RD_KAFKA_RESP_ERR_NETWORK_EXCEPTION,
"Broker: Broker disconnected before response received"),
_ERR_DESC(RD_KAFKA_RESP_ERR_GROUP_LOAD_IN_PROGRESS,
"Broker: Group coordinator load in progress"),
_ERR_DESC(RD_KAFKA_RESP_ERR_GROUP_COORDINATOR_NOT_AVAILABLE,
"Broker: Group coordinator not available"),
_ERR_DESC(RD_KAFKA_RESP_ERR_NOT_COORDINATOR_FOR_GROUP,
"Broker: Not coordinator for group"),
_ERR_DESC(RD_KAFKA_RESP_ERR_TOPIC_EXCEPTION,
"Broker: Invalid topic"),
_ERR_DESC(RD_KAFKA_RESP_ERR_RECORD_LIST_TOO_LARGE,
"Broker: Message batch larger than configured server "
"segment size"),
_ERR_DESC(RD_KAFKA_RESP_ERR_NOT_ENOUGH_REPLICAS,
"Broker: Not enough in-sync replicas"),
_ERR_DESC(RD_KAFKA_RESP_ERR_NOT_ENOUGH_REPLICAS_AFTER_APPEND,
"Broker: Message(s) written to insufficient number of "
"in-sync replicas"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_REQUIRED_ACKS,
"Broker: Invalid required acks value"),
_ERR_DESC(RD_KAFKA_RESP_ERR_ILLEGAL_GENERATION,
"Broker: Specified group generation id is not valid"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INCONSISTENT_GROUP_PROTOCOL,
"Broker: Inconsistent group protocol"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_GROUP_ID,
"Broker: Invalid group.id"),
_ERR_DESC(RD_KAFKA_RESP_ERR_UNKNOWN_MEMBER_ID,
"Broker: Unknown member"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_SESSION_TIMEOUT,
"Broker: Invalid session timeout"),
_ERR_DESC(RD_KAFKA_RESP_ERR_REBALANCE_IN_PROGRESS,
"Broker: Group rebalance in progress"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_COMMIT_OFFSET_SIZE,
"Broker: Commit offset data size is not valid"),
_ERR_DESC(RD_KAFKA_RESP_ERR_TOPIC_AUTHORIZATION_FAILED,
"Broker: Topic authorization failed"),
_ERR_DESC(RD_KAFKA_RESP_ERR_GROUP_AUTHORIZATION_FAILED,
"Broker: Group authorization failed"),
_ERR_DESC(RD_KAFKA_RESP_ERR_CLUSTER_AUTHORIZATION_FAILED,
"Broker: Cluster authorization failed"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_TIMESTAMP,
"Broker: Invalid timestamp"),
_ERR_DESC(RD_KAFKA_RESP_ERR_UNSUPPORTED_SASL_MECHANISM,
"Broker: Unsupported SASL mechanism"),
_ERR_DESC(RD_KAFKA_RESP_ERR_ILLEGAL_SASL_STATE,
"Broker: Request not valid in current SASL state"),
_ERR_DESC(RD_KAFKA_RESP_ERR_UNSUPPORTED_VERSION,
"Broker: API version not supported"),
_ERR_DESC(RD_KAFKA_RESP_ERR_TOPIC_ALREADY_EXISTS,
"Broker: Topic already exists"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_PARTITIONS,
"Broker: Invalid number of partitions"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_REPLICATION_FACTOR,
"Broker: Invalid replication factor"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_REPLICA_ASSIGNMENT,
"Broker: Invalid replica assignment"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_CONFIG,
"Broker: Configuration is invalid"),
_ERR_DESC(RD_KAFKA_RESP_ERR_NOT_CONTROLLER,
"Broker: Not controller for cluster"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_REQUEST,
"Broker: Invalid request"),
_ERR_DESC(RD_KAFKA_RESP_ERR_UNSUPPORTED_FOR_MESSAGE_FORMAT,
"Broker: Message format on broker does not support request"),
_ERR_DESC(RD_KAFKA_RESP_ERR_POLICY_VIOLATION,
"Broker: Policy violation"),
_ERR_DESC(RD_KAFKA_RESP_ERR_OUT_OF_ORDER_SEQUENCE_NUMBER,
"Broker: Broker received an out of order sequence number"),
_ERR_DESC(RD_KAFKA_RESP_ERR_DUPLICATE_SEQUENCE_NUMBER,
"Broker: Broker received a duplicate sequence number"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_PRODUCER_EPOCH,
"Broker: Producer attempted an operation with an old epoch"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_TXN_STATE,
"Broker: Producer attempted a transactional operation in "
"an invalid state"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_PRODUCER_ID_MAPPING,
"Broker: Producer attempted to use a producer id which is "
"not currently assigned to its transactional id"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_TRANSACTION_TIMEOUT,
"Broker: Transaction timeout is larger than the maximum "
"value allowed by the broker's max.transaction.timeout.ms"),
_ERR_DESC(RD_KAFKA_RESP_ERR_CONCURRENT_TRANSACTIONS,
"Broker: Producer attempted to update a transaction while "
"another concurrent operation on the same transaction was "
"ongoing"),
_ERR_DESC(RD_KAFKA_RESP_ERR_TRANSACTION_COORDINATOR_FENCED,
"Broker: Indicates that the transaction coordinator sending "
"a WriteTxnMarker is no longer the current coordinator for "
"a given producer"),
_ERR_DESC(RD_KAFKA_RESP_ERR_TRANSACTIONAL_ID_AUTHORIZATION_FAILED,
"Broker: Transactional Id authorization failed"),
_ERR_DESC(RD_KAFKA_RESP_ERR_SECURITY_DISABLED,
"Broker: Security features are disabled"),
_ERR_DESC(RD_KAFKA_RESP_ERR_OPERATION_NOT_ATTEMPTED,
"Broker: Operation not attempted"),
_ERR_DESC(RD_KAFKA_RESP_ERR_KAFKA_STORAGE_ERROR,
"Disk error when trying to access log file on the disk"),
_ERR_DESC(RD_KAFKA_RESP_ERR_LOG_DIR_NOT_FOUND,
"The user-specified log directory is not found "
"in the broker config"),
_ERR_DESC(RD_KAFKA_RESP_ERR_SASL_AUTHENTICATION_FAILED,
"SASL Authentication failed"),
_ERR_DESC(RD_KAFKA_RESP_ERR_UNKNOWN_PRODUCER_ID,
"Unknown Producer Id"),
_ERR_DESC(RD_KAFKA_RESP_ERR_REASSIGNMENT_IN_PROGRESS,
"Partition reassignment is in progress"),
_ERR_DESC(RD_KAFKA_RESP_ERR_DELEGATION_TOKEN_AUTH_DISABLED,
"Delegation Token feature is not enabled"),
_ERR_DESC(RD_KAFKA_RESP_ERR_DELEGATION_TOKEN_NOT_FOUND,
"Delegation Token is not found on server"),
_ERR_DESC(RD_KAFKA_RESP_ERR_DELEGATION_TOKEN_OWNER_MISMATCH,
"Specified Principal is not valid Owner/Renewer"),
_ERR_DESC(RD_KAFKA_RESP_ERR_DELEGATION_TOKEN_REQUEST_NOT_ALLOWED,
"Delegation Token requests are not allowed on "
"this connection"),
_ERR_DESC(RD_KAFKA_RESP_ERR_DELEGATION_TOKEN_AUTHORIZATION_FAILED,
"Delegation Token authorization failed"),
_ERR_DESC(RD_KAFKA_RESP_ERR_DELEGATION_TOKEN_EXPIRED,
"Delegation Token is expired"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_PRINCIPAL_TYPE,
"Supplied principalType is not supported"),
_ERR_DESC(RD_KAFKA_RESP_ERR_NON_EMPTY_GROUP,
"The group is not empty"),
_ERR_DESC(RD_KAFKA_RESP_ERR_GROUP_ID_NOT_FOUND,
"The group id does not exist"),
_ERR_DESC(RD_KAFKA_RESP_ERR_FETCH_SESSION_ID_NOT_FOUND,
"The fetch session ID was not found"),
_ERR_DESC(RD_KAFKA_RESP_ERR_INVALID_FETCH_SESSION_EPOCH,
"The fetch session epoch is invalid"),
_ERR_DESC(RD_KAFKA_RESP_ERR_LISTENER_NOT_FOUND,
"No matching listener"),
_ERR_DESC(RD_KAFKA_RESP_ERR_TOPIC_DELETION_DISABLED,
"Topic deletion is disabled"),
_ERR_DESC(RD_KAFKA_RESP_ERR_UNSUPPORTED_COMPRESSION_TYPE,
"Unsupported compression type"),
_ERR_DESC(RD_KAFKA_RESP_ERR__END, NULL)
};
void rd_kafka_get_err_descs (const struct rd_kafka_err_desc **errdescs,
size_t *cntp) {
*errdescs = rd_kafka_err_descs;
*cntp = RD_ARRAYSIZE(rd_kafka_err_descs);
}
const char *rd_kafka_err2str (rd_kafka_resp_err_t err) {
static RD_TLS char ret[32];
int idx = err - RD_KAFKA_RESP_ERR__BEGIN;
if (unlikely(err <= RD_KAFKA_RESP_ERR__BEGIN ||
err >= RD_KAFKA_RESP_ERR_END_ALL ||
!rd_kafka_err_descs[idx].desc)) {
rd_snprintf(ret, sizeof(ret), "Err-%i?", err);
return ret;
}
return rd_kafka_err_descs[idx].desc;
}
const char *rd_kafka_err2name (rd_kafka_resp_err_t err) {
static RD_TLS char ret[32];
int idx = err - RD_KAFKA_RESP_ERR__BEGIN;
if (unlikely(err <= RD_KAFKA_RESP_ERR__BEGIN ||
err >= RD_KAFKA_RESP_ERR_END_ALL ||
!rd_kafka_err_descs[idx].desc)) {
rd_snprintf(ret, sizeof(ret), "ERR_%i?", err);
return ret;
}
return rd_kafka_err_descs[idx].name;
}
rd_kafka_resp_err_t rd_kafka_last_error (void) {
return rd_kafka_last_error_code;
}
rd_kafka_resp_err_t rd_kafka_errno2err (int errnox) {
switch (errnox)
{
case EINVAL:
return RD_KAFKA_RESP_ERR__INVALID_ARG;
case EBUSY:
return RD_KAFKA_RESP_ERR__CONFLICT;
case ENOENT:
return RD_KAFKA_RESP_ERR__UNKNOWN_TOPIC;
case ESRCH:
return RD_KAFKA_RESP_ERR__UNKNOWN_PARTITION;
case ETIMEDOUT:
return RD_KAFKA_RESP_ERR__TIMED_OUT;
case EMSGSIZE:
return RD_KAFKA_RESP_ERR_MSG_SIZE_TOO_LARGE;
case ENOBUFS:
return RD_KAFKA_RESP_ERR__QUEUE_FULL;
case ECANCELED:
return RD_KAFKA_RESP_ERR__FATAL;
default:
return RD_KAFKA_RESP_ERR__FAIL;
}
}
rd_kafka_resp_err_t rd_kafka_fatal_error (rd_kafka_t *rk,
char *errstr, size_t errstr_size) {
rd_kafka_resp_err_t err;
if (unlikely((err = rd_atomic32_get(&rk->rk_fatal.err)))) {
rd_kafka_rdlock(rk);
rd_snprintf(errstr, errstr_size, "%s", rk->rk_fatal.errstr);
rd_kafka_rdunlock(rk);
}
return err;
}
/**
* @brief Set's the fatal error for this instance.
*
* @returns 1 if the error was set, or 0 if a previous fatal error
* has already been set on this instance.
*
* @locality any
* @locks none
*/
int rd_kafka_set_fatal_error (rd_kafka_t *rk, rd_kafka_resp_err_t err,
const char *fmt, ...) {
va_list ap;
char buf[512];
rd_kafka_wrlock(rk);
rk->rk_fatal.cnt++;
if (rd_atomic32_get(&rk->rk_fatal.err)) {
rd_kafka_wrunlock(rk);
rd_kafka_dbg(rk, GENERIC, "FATAL",
"Suppressing subsequent fatal error: %s",
rd_kafka_err2name(err));
return 0;
}
rd_atomic32_set(&rk->rk_fatal.err, err);
va_start(ap, fmt);
rd_vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
rk->rk_fatal.errstr = rd_strdup(buf);
rd_kafka_wrunlock(rk);
/* If there is an error callback or event handler we
* also log the fatal error as it happens.
* If there is no error callback the error event
* will be automatically logged, and this check here
* prevents us from duplicate logs. */
if (rk->rk_conf.enabled_events & RD_KAFKA_EVENT_ERROR)
rd_kafka_log(rk, LOG_EMERG, "FATAL",
"Fatal error: %s: %s",
rd_kafka_err2str(err), rk->rk_fatal.errstr);
else
rd_kafka_dbg(rk, ALL, "FATAL",
"Fatal error: %s: %s",
rd_kafka_err2str(err), rk->rk_fatal.errstr);
/* Indicate to the application that a fatal error was raised,
* the app should use rd_kafka_fatal_error() to extract the
* fatal error code itself. */
rd_kafka_op_err(rk, RD_KAFKA_RESP_ERR__FATAL,
"Fatal error: %s: %s",
rd_kafka_err2str(err), rk->rk_fatal.errstr);
/* Purge producer queues, but not in-flight since we'll
* want proper delivery status for transmitted requests.
* Need NON_BLOCKING to avoid dead-lock if user is
* calling purge() at the same time, which could be
* waiting for this broker thread to handle its
* OP_PURGE request. */
if (rk->rk_type == RD_KAFKA_PRODUCER)
rd_kafka_purge(rk, RD_KAFKA_PURGE_F_QUEUE|
RD_KAFKA_PURGE_F_NON_BLOCKING);
return 1;
}
rd_kafka_resp_err_t
rd_kafka_test_fatal_error (rd_kafka_t *rk, rd_kafka_resp_err_t err,
const char *reason) {
if (rd_kafka_set_fatal_error(rk, err, "test_fatal_error: %s", reason))
return RD_KAFKA_RESP_ERR__PREV_IN_PROGRESS;
else
return RD_KAFKA_RESP_ERR_NO_ERROR;
}
/**
* @brief Final destructor for rd_kafka_t, must only be called with refcnt 0.
*
* @locality application thread
*/
void rd_kafka_destroy_final (rd_kafka_t *rk) {
rd_kafka_assert(rk, rd_kafka_terminating(rk));
/* Synchronize state */
rd_kafka_wrlock(rk);
rd_kafka_wrunlock(rk);
rd_kafka_assignors_term(rk);
rd_kafka_metadata_cache_destroy(rk);
rd_kafka_timers_destroy(&rk->rk_timers);
rd_kafka_dbg(rk, GENERIC, "TERMINATE", "Destroying op queues");
/* Destroy cgrp */
if (rk->rk_cgrp) {
rd_kafka_dbg(rk, GENERIC, "TERMINATE",
"Destroying cgrp");
/* Reset queue forwarding (rep -> cgrp) */
rd_kafka_q_fwd_set(rk->rk_rep, NULL);
rd_kafka_cgrp_destroy_final(rk->rk_cgrp);
}
/* Purge op-queues */
rd_kafka_q_destroy_owner(rk->rk_rep);
rd_kafka_q_destroy_owner(rk->rk_ops);
#if WITH_SSL
if (rk->rk_conf.ssl.ctx) {
rd_kafka_dbg(rk, GENERIC, "TERMINATE", "Destroying SSL CTX");
rd_kafka_transport_ssl_ctx_term(rk);
}
#endif
/* It is not safe to log after this point. */
rd_kafka_dbg(rk, GENERIC, "TERMINATE",
"Termination done: freeing resources");
if (rk->rk_logq) {
rd_kafka_q_destroy_owner(rk->rk_logq);
rk->rk_logq = NULL;
}
if (rk->rk_type == RD_KAFKA_PRODUCER) {
cnd_destroy(&rk->rk_curr_msgs.cnd);
mtx_destroy(&rk->rk_curr_msgs.lock);
}
if (rk->rk_fatal.errstr) {
rd_free(rk->rk_fatal.errstr);
rk->rk_fatal.errstr = NULL;
}
cnd_destroy(&rk->rk_broker_state_change_cnd);
mtx_destroy(&rk->rk_broker_state_change_lock);
mtx_destroy(&rk->rk_suppress.sparse_connect_lock);
cnd_destroy(&rk->rk_init_cnd);
mtx_destroy(&rk->rk_init_lock);
if (rk->rk_full_metadata)
rd_kafka_metadata_destroy(rk->rk_full_metadata);
rd_kafkap_str_destroy(rk->rk_client_id);
rd_kafkap_str_destroy(rk->rk_group_id);
rd_kafkap_str_destroy(rk->rk_eos.transactional_id);
rd_kafka_anyconf_destroy(_RK_GLOBAL, &rk->rk_conf);
rd_list_destroy(&rk->rk_broker_by_id);
if (rk->rk_oauthbearer) {
RD_IF_FREE(rk->rk_oauthbearer->md_principal_name, rd_free);
RD_IF_FREE(rk->rk_oauthbearer->token_value, rd_free);
rd_list_destroy(&rk->rk_oauthbearer->extensions);
RD_IF_FREE(rk->rk_oauthbearer->errstr, rd_free);
rd_free(rk->rk_oauthbearer);
}
rd_kafkap_bytes_destroy((rd_kafkap_bytes_t *)rk->rk_null_bytes);
rwlock_destroy(&rk->rk_lock);
rd_free(rk);
rd_kafka_global_cnt_decr();
}
static void rd_kafka_destroy_app (rd_kafka_t *rk, int flags) {
thrd_t thrd;
#ifndef _MSC_VER
int term_sig = rk->rk_conf.term_sig;
#endif
int res;
char flags_str[256];
static const char *rd_kafka_destroy_flags_names[] = {
"Terminate",
"DestroyCalled",
"Immediate",
"NoConsumerClose",
NULL
};
/* _F_IMMEDIATE also sets .._NO_CONSUMER_CLOSE */
if (flags & RD_KAFKA_DESTROY_F_IMMEDIATE)
flags |= RD_KAFKA_DESTROY_F_NO_CONSUMER_CLOSE;
rd_flags2str(flags_str, sizeof(flags_str),
rd_kafka_destroy_flags_names, flags);
rd_kafka_dbg(rk, ALL, "DESTROY", "Terminating instance "
"(destroy flags %s (0x%x))",
flags ? flags_str : "none", flags);
/* Make sure destroy is not called from a librdkafka thread
* since this will most likely cause a deadlock.
* FIXME: include broker threads (for log_cb) */
if (thrd_is_current(rk->rk_thread) ||
thrd_is_current(rk->rk_background.thread)) {
rd_kafka_log(rk, LOG_EMERG, "BGQUEUE",
"Application bug: "
"rd_kafka_destroy() called from "
"librdkafka owned thread");
rd_kafka_assert(NULL,
!*"Application bug: "
"calling rd_kafka_destroy() from "
"librdkafka owned thread is prohibited");
}
/* Before signaling for general termination, set the destroy
* flags to hint cgrp how to shut down. */
rd_atomic32_set(&rk->rk_terminate,
flags|RD_KAFKA_DESTROY_F_DESTROY_CALLED);
/* The legacy/simple consumer lacks an API to close down the consumer*/
if (rk->rk_cgrp) {
rd_kafka_dbg(rk, GENERIC, "TERMINATE",
"Terminating consumer group handler");
rd_kafka_consumer_close(rk);
}
/* With the consumer closed, terminate the rest of librdkafka. */
rd_atomic32_set(&rk->rk_terminate, flags|RD_KAFKA_DESTROY_F_TERMINATE);
rd_kafka_dbg(rk, GENERIC, "TERMINATE", "Interrupting timers");
rd_kafka_wrlock(rk);
thrd = rk->rk_thread;
rd_kafka_timers_interrupt(&rk->rk_timers);
rd_kafka_wrunlock(rk);
rd_kafka_dbg(rk, GENERIC, "TERMINATE",
"Sending TERMINATE to internal main thread");
/* Send op to trigger queue/io wake-up.
* The op itself is (likely) ignored by the receiver. */
rd_kafka_q_enq(rk->rk_ops, rd_kafka_op_new(RD_KAFKA_OP_TERMINATE));
#ifndef _MSC_VER
/* Interrupt main kafka thread to speed up termination. */
if (term_sig) {
rd_kafka_dbg(rk, GENERIC, "TERMINATE",
"Sending thread kill signal %d", term_sig);
pthread_kill(thrd, term_sig);
}
#endif
if (rd_kafka_destroy_flags_check(rk, RD_KAFKA_DESTROY_F_IMMEDIATE))
return; /* FIXME: thread resource leak */
rd_kafka_dbg(rk, GENERIC, "TERMINATE",
"Joining internal main thread");
if (thrd_join(thrd, &res) != thrd_success)
rd_kafka_log(rk, LOG_ERR, "DESTROY",
"Failed to join internal main thread: %s "
"(was process forked?)",
rd_strerror(errno));
rd_kafka_destroy_final(rk);
}
/* NOTE: Must only be called by application.
* librdkafka itself must use rd_kafka_destroy0(). */
void rd_kafka_destroy (rd_kafka_t *rk) {
rd_kafka_destroy_app(rk, 0);
}
void rd_kafka_destroy_flags (rd_kafka_t *rk, int flags) {
rd_kafka_destroy_app(rk, flags);
}
/**
* Main destructor for rd_kafka_t
*
* Locality: rdkafka main thread or application thread during rd_kafka_new()
*/
static void rd_kafka_destroy_internal (rd_kafka_t *rk) {