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librdkafka - the Apache Kafka C/C++ client library ================================================== Copyright (c) 2012-2018, [Magnus Edenhill](http://www.edenhill.se/). [https://github.com/edenhill/librdkafka](https://github.com/edenhill/librdkafka) [](https://gitter.im/edenhill/librdkafka) [](https://doozer.io/user/edenhill/librdkafka) **librdkafka** is a C library implementation of the [Apache Kafka](http://kafka.apache.org/) protocol, containing both Producer and Consumer support. It was designed with message delivery reliability and high performance in mind, current figures exceed 1 million msgs/second for the producer and 3 million msgs/second for the consumer. **librdkafka** is licensed under the 2-clause BSD license. For an introduction to the performance and usage of librdkafka, see [INTRODUCTION.md](https://github.com/edenhill/librdkafka/blob/master/INTRODUCTION.md) See the [wiki](https://github.com/edenhill/librdkafka/wiki) for a FAQ. **NOTE**: The `master` branch is actively developed, use latest release for production use. # Overview # * High-level producer * High-level balanced KafkaConsumer (requires broker >= 0.9) * Simple (legacy) consumer * Compression: snappy, gzip, lz4 * [SSL](https://github.com/edenhill/librdkafka/wiki/Using-SSL-with-librdkafka) support * [SASL](https://github.com/edenhill/librdkafka/wiki/Using-SASL-with-librdkafka) (GSSAPI/Kerberos/SSPI, PLAIN, SCRAM) support * Broker version support: >=0.8 (see [Broker version compatibility](https://github.com/edenhill/librdkafka/wiki/Broker-version-compatibility)) * Stable C & C++ APIs (ABI safety guaranteed for C) * [Statistics](https://github.com/edenhill/librdkafka/blob/master/STATISTICS.md) metrics * Debian package: librdkafka1 and librdkafka-dev in Debian and Ubuntu * RPM package: librdkafka and librdkafka-devel * Gentoo package: dev-libs/librdkafka * Portable: runs on Linux, OSX, Win32, Solaris, FreeBSD, AIX, ... # Language bindings # * C#/.NET: [confluent-kafka-dotnet](https://github.com/confluentinc/confluent-kafka-dotnet) (based on [rdkafka-dotnet](https://github.com/ah-/rdkafka-dotnet)) * C++: [cppkafka](https://github.com/mfontanini/cppkafka) * D (C-like): [librdkafka](https://github.com/DlangApache/librdkafka/) * D (C++-like): [librdkafkad](https://github.com/tamediadigital/librdkafka-d) * Erlang: [erlkaf](https://github.com/silviucpp/erlkaf) * Go: [confluent-kafka-go](https://github.com/confluentinc/confluent-kafka-go) * Haskell (kafka, conduit, avro, schema registry): [hw-kafka](https://github.com/haskell-works/hw-kafka) * Haskell: [haskakafka](https://github.com/cosbynator/haskakafka) * Haskell: [haskell-kafka](https://github.com/yanatan16/haskell-kafka) * Lua: [luardkafka](https://github.com/mistsv/luardkafka) * Node.js: [node-rdkafka](https://github.com/Blizzard/node-rdkafka) * Node.js: [node-kafka](https://github.com/sutoiku/node-kafka) * Node.js: [kafka-native](https://github.com/jut-io/node-kafka-native) * OCaml: [ocaml-kafka](https://github.com/didier-wenzek/ocaml-kafka) * PHP: [phpkafka](https://github.com/EVODelavega/phpkafka) * PHP: [php-rdkafka](https://github.com/arnaud-lb/php-rdkafka) * Python: [confluent-kafka-python](https://github.com/confluentinc/confluent-kafka-python) * Python: [PyKafka](https://github.com/Parsely/pykafka) * Ruby: [Hermann](https://github.com/reiseburo/hermann) * Ruby: [rdkafka-ruby](https://github.com/appsignal/rdkafka-ruby) * Rust: [rust-rdkafka](https://github.com/fede1024/rust-rdkafka) * Tcl: [KafkaTcl](https://github.com/flightaware/kafkatcl) * Swift: [Perfect-Kafka](https://github.com/PerfectlySoft/Perfect-Kafka) # Users of librdkafka # * [kafkacat](https://github.com/edenhill/kafkacat) - Apache Kafka swiss army knife * [Wikimedia's varnishkafka](https://github.com/wikimedia/varnishkafka) - Varnish cache web log producer * [Wikimedia's kafkatee](https://github.com/wikimedia/analytics-kafkatee) - Kafka multi consumer with filtering and fanout * [rsyslog](http://www.rsyslog.com) * [syslog-ng](http://syslog-ng.org) * [collectd](http://collectd.org) * [logkafka](https://github.com/Qihoo360/logkafka) - Collect logs and send to Kafka * [redBorder](http://www.redborder.net) * [Headweb](http://www.headweb.com/) * [Produban's log2kafka](https://github.com/Produban/log2kafka) - Web log producer * [fuse_kafka](https://github.com/yazgoo/fuse_kafka) - FUSE file system layer * [node-kafkacat](https://github.com/Rafflecopter/node-kafkacat) * [OVH](http://ovh.com) - [AntiDDOS](http://www.slideshare.net/hugfrance/hugfr-6-oct2014ovhantiddos) * [otto.de](http://otto.de)'s [trackdrd](https://github.com/otto-de/trackrdrd) - Varnish log reader * [Microwish](https://github.com/microwish) has a range of Kafka utilites for log aggregation, HDFS integration, etc. * [aidp](https://github.com/weiboad/aidp) - kafka consumer embedded Lua scripting language in data process framework * [Yandex ClickHouse](https://github.com/yandex/ClickHouse) * [NXLog](http://nxlog.co/) - Enterprise logging system, Kafka input/output plugin. * large unnamed financial institutions * and many more.. * *Let [me](mailto:rdkafka@edenhill.se) know if you are using librdkafka* # Usage ## Requirements The GNU toolchain GNU make pthreads zlib-dev (optional, for gzip compression support) libssl-dev (optional, for SSL and SASL SCRAM support) libsasl2-dev (optional, for SASL GSSAPI support) ## Instructions ### Building ./configure make sudo make install **NOTE**: See [README.win32](README.win32) for instructions how to build on Windows with Microsoft Visual Studio. **NOTE**: See [CMake instructions](packaging/cmake/README.md) for experimental CMake build (unsupported). ### Usage in code See [examples/rdkafka_example.c](https://github.com/edenhill/librdkafka/blob/master/examples/rdkafka_example.c) for an example producer and consumer. Link your program with `-lrdkafka -lz -lpthread -lrt`. ## Documentation The public APIs are documented in their respective header files: * The **C** API is documented in [src/rdkafka.h](src/rdkafka.h) * The **C++** API is documented in [src-cpp/rdkafkacpp.h](src-cpp/rdkafkacpp.h) To generate Doxygen documents for the API, type: make docs Configuration properties are documented in [CONFIGURATION.md](https://github.com/edenhill/librdkafka/blob/master/CONFIGURATION.md) For a librdkafka introduction, see [INTRODUCTION.md](https://github.com/edenhill/librdkafka/blob/master/INTRODUCTION.md) ## Examples See the `examples/`sub-directory. ## Tests See the `tests/`sub-directory. ## Support File bug reports, feature requests and questions using [GitHub Issues](https://github.com/edenhill/librdkafka/issues) Questions and discussions are also welcome on irc.freenode.org, #apache-kafka, nickname Snaps. ### Commercial support Commercial support is available from [Edenhill services](http://www.edenhill.se)