Great news! Thanks for running the release
On Mon, Jul 30, 2018 at 12:20 PM, Manikumar <manikumar.re...@gmail.com> wrote: > Thanks for driving the release! > > > > On Mon, Jul 30, 2018 at 3:55 PM Rajini Sivaram <rsiva...@apache.org> wrote: > >> The Apache Kafka community is pleased to announce the release for >> >> Apache Kafka 2.0.0. >> >> >> >> >> >> This is a major release and includes significant new features from >> >> 40 KIPs. It contains fixes and improvements from 246 JIRAs, including >> >> a few critical bugs. Here is a summary of some notable changes: >> >> ** KIP-290 adds support for prefixed ACLs, simplifying access control >> management in large secure deployments. Bulk access to topics, >> consumer groups or transactional ids with a prefix can now be granted >> using a single rule. Access control for topic creation has also been >> improved to enable access to be granted to create specific topics or >> topics with a prefix. >> >> ** KIP-255 adds a framework for authenticating to Kafka brokers using >> OAuth2 bearer tokens. The SASL/OAUTHBEARER implementation is >> customizable using callbacks for token retrieval and validation. >> >> **Host name verification is now enabled by default for SSL connections >> to ensure that the default SSL configuration is not susceptible to >> man-in-the middle attacks. You can disable this verification for >> deployments where validation is performed using other mechanisms. >> >> ** You can now dynamically update SSL trust stores without broker restart. >> You can also configure security for broker listeners in ZooKeeper before >> starting brokers, including SSL key store and trust store passwords and >> JAAS configuration for SASL. With this new feature, you can store sensitive >> password configs in encrypted form in ZooKeeper rather than in cleartext >> in the broker properties file. >> >> ** The replication protocol has been improved to avoid log divergence >> between leader and follower during fast leader failover. We have also >> improved resilience of brokers by reducing the memory footprint of >> message down-conversions. By using message chunking, both memory >> usage and memory reference time have been reduced to avoid >> OutOfMemory errors in brokers. >> >> ** Kafka clients are now notified of throttling before any throttling is >> applied >> when quotas are enabled. This enables clients to distinguish between >> network errors and large throttle times when quotas are exceeded. >> >> ** We have added a configuration option for Kafka consumer to avoid >> indefinite blocking in the consumer. >> >> ** We have dropped support for Java 7 and removed the previously >> deprecated Scala producer and consumer. >> >> ** Kafka Connect includes a number of improvements and features. >> KIP-298 enables you to control how errors in connectors, transformations >> and converters are handled by enabling automatic retries and controlling >> the >> number of errors that are tolerated before the connector is stopped. More >> contextual information can be included in the logs to help diagnose >> problems >> and problematic messages consumed by sink connectors can be sent to a >> dead letter queue rather than forcing the connector to stop. >> >> ** KIP-297 adds a new extension point to move secrets out of connector >> configurations and integrate with any external key management system. >> The placeholders in connector configurations are only resolved before >> sending the configuration to the connector, ensuring that secrets are >> stored >> and managed securely in your preferred key management system and >> not exposed over the REST APIs or in log files. >> >> ** We have added a thin Scala wrapper API for our Kafka Streams DSL, >> which provides better type inference and better type safety during compile >> time. Scala users can have less boilerplate in their code, notably >> regarding >> Serdes with new implicit Serdes. >> >> ** Message headers are now supported in the Kafka Streams Processor API, >> allowing users to add and manipulate headers read from the source topics >> and propagate them to the sink topics. >> >> ** Windowed aggregations performance in Kafka Streams has been largely >> improved (sometimes by an order of magnitude) thanks to the new >> single-key-fetch API. >> >> ** We have further improved unit testibility of Kafka Streams with the >> kafka-streams-testutil artifact. >> >> >> >> >> >> All of the changes in this release can be found in the release notes: >> >> https://www.apache.org/dist/kafka/2.0.0/RELEASE_NOTES.html >> >> >> >> >> >> You can download the source and binary release (Scala 2.11 and Scala 2.12) >> from: >> >> https://kafka.apache.org/downloads#2.0.0 >> <https://kafka.apache.org/downloads#2.0.0> >> >> >> >> >> --------------------------------------------------------------------------------------------------- >> >> >> >> >> >> Apache Kafka is a distributed streaming platform with four core APIs: >> >> >> >> ** The Producer API allows an application to publish a stream records to >> >> one or more Kafka topics. >> >> >> >> ** The Consumer API allows an application to subscribe to one or more >> >> topics and process the stream of records produced to them. >> >> >> >> ** The Streams API allows an application to act as a stream processor, >> >> consuming an input stream from one or more topics and producing an >> >> output stream to one or more output topics, effectively transforming the >> >> input streams to output streams. >> >> >> >> ** The Connector API allows building and running reusable producers or >> >> consumers that connect Kafka topics to existing applications or data >> >> systems. For example, a connector to a relational database might >> >> capture every change to a table. >> >> >> >> >> >> With these APIs, Kafka can be used for two broad classes of application: >> >> >> >> ** Building real-time streaming data pipelines that reliably get data >> >> between systems or applications. >> >> >> >> ** Building real-time streaming applications that transform or react >> >> to the streams of data. >> >> >> >> >> >> >> >> Apache Kafka is in use at large and small companies worldwide, including >> >> Capital One, Goldman Sachs, ING, LinkedIn, Netflix, Pinterest, Rabobank, >> >> Target, The New York Times, Uber, Yelp, and Zalando, among others. >> >> >> >> >> >> >> >> A big thank you for the following 131 contributors to this release! >> >> >> >> Adem Efe Gencer, Alex D, Alex Dunayevsky, Allen Wang, Andras Beni, >> >> Andy Bryant, Andy Coates, Anna Povzner, Arjun Satish, asutosh936, >> >> Attila Sasvari, bartdevylder, Benedict Jin, Bill Bejeck, Blake Miller, >> >> Boyang Chen, cburroughs, Chia-Ping Tsai, Chris Egerton, Colin P. Mccabe, >> >> Colin Patrick McCabe, ConcurrencyPractitioner, Damian Guy, dan norwood, >> >> Daniel Shuy, Daniel Wojda, Dark, David Glasser, Debasish Ghosh, Detharon, >> >> Dhruvil Shah, Dmitry Minkovsky, Dong Lin, Edoardo Comar, emmanuel Harel, >> >> Eugene Sevastyanov, Ewen Cheslack-Postava, Fedor Bobin, fedosov-alexander, >> >> Filipe Agapito, Florian Hussonnois, fredfp, Gilles Degols, gitlw, Gitomain, >> >> Guangxian, Gunju Ko, Gunnar Morling, Guozhang Wang, hmcl, huxi, huxihx, >> >> Igor Kostiakov, Ismael Juma, Jacek Laskowski, Jagadesh Adireddi, >> >> Jarek Rudzinski, Jason Gustafson, Jeff Klukas, Jeremy Custenborder, >> >> Jiangjie (Becket) Qin, Jiangjie Qin, JieFang.He, Jimin Hsieh, Joan Goyeau, >> >> Joel Hamill, John Roesler, Jon Lee, Jorge Quilcate Otoya, Jun Rao, >> >> Kamal C, khairy, Koen De Groote, Konstantine Karantasis, Lee Dongjin, >> >> Liju John, Liquan Pei, lisa2lisa, Lucas Wang, Magesh Nandakumar, >> >> Magnus Edenhill, Magnus Reftel, Manikumar Reddy, Manikumar Reddy O, >> >> manjuapu, Mats Julian Olsen, Matthias J. Sax, Max Zheng, maytals, >> >> Michael Arndt, Michael G. Noll, Mickael Maison, nafshartous, Nick Travers, >> >> nixsticks, Paolo Patierno, parafiend, Patrik Erdes, Radai Rosenblatt, >> >> Rajini Sivaram, Randall Hauch, ro7m, Robert Yokota, Roman Khlebnov, >> >> Ron Dagostino, Sandor Murakozi, Sasaki Toru, Sean Glover, >> >> Sebastian Bauersfeld, Siva Santhalingam, Stanislav Kozlovski, Stephane >> Maarek, >> >> Stuart Perks, Surabhi Dixit, Sönke Liebau, taekyung, tedyu, Thomas Leplus, >> >> UVN, Vahid Hashemian, Valentino Proietti, Viktor Somogyi, Vitaly Pushkar, >> >> Wladimir Schmidt, wushujames, Xavier Léauté, xin, yaphet, >> >> Yaswanth Kumar, ying-zheng, Yu >> >> >> >> >> >> >> >> We welcome your help and feedback. For more information on how to >> >> report problems, and to get involved, visit the project website at >> >> https://kafka.apache.org/ >> >> >> >> >> >> Thank you! >> >> >> >> >> >> Regards, >> >> >> >> Rajini >>
