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<h3>
<a href="/2022/07/06/apache-flink-1.15.1-release-announcement/">Apache Flink 1.15.1 Release Announcement</a>
</h3>
July 6, 2022 -
David Anderson
<a href="https://twitter.com/alpinegizmo">(@alpinegizmo)</a>
<p>The Apache Flink Community is pleased to announce the first bug fix release of the Flink 1.15 series.
This release includes 62 bug fixes, vulnerability fixes, and minor improvements for Flink 1.15. Below you will find a list of all bugfixes and improvements (excluding improvements to the build infrastructure and build stability). For a complete list of all changes see: JIRA.
We highly recommend all users upgrade to Flink 1.15.1.
<a href="/2022/07/06/apache-flink-1.15.1-release-announcement/">...</a>
</p>
<a href="/2022/07/06/apache-flink-1.15.1-release-announcement/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/06/22/apache-flink-1.14.5-release-announcement/">Apache Flink 1.14.5 Release Announcement</a>
</h3>
June 22, 2022 -
Xingbo Huang
<p>The Apache Flink Community is pleased to announce another bug fix release for Flink 1.14.
This release includes 67 bugs, vulnerability fixes and minor improvements for Flink 1.14. Below you will find a list of all bugfixes and improvements (excluding improvements to the build infrastructure and build stability). For a complete list of all changes see: JIRA.
We highly recommend all users to upgrade to Flink 1.14.5.
Release Artifacts # Maven Dependencies # &lt;dependency&gt; &lt;groupId&gt;org.
<a href="/2022/06/22/apache-flink-1.14.5-release-announcement/">...</a>
</p>
<a href="/2022/06/22/apache-flink-1.14.5-release-announcement/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/06/17/adaptive-batch-scheduler-automatically-decide-parallelism-of-flink-batch-jobs/">Adaptive Batch Scheduler: Automatically Decide Parallelism of Flink Batch Jobs</a>
</h3>
June 17, 2022 -
Lijie Wang
Zhu Zhu
<p>Introduction # Deciding proper parallelisms of operators is not an easy work for many users. For batch jobs, a small parallelism may result in long execution time and big failover regression. While an unnecessary large parallelism may result in resource waste and more overhead cost in task deployment and network shuffling.
To decide a proper parallelism, one needs to know how much data each operator needs to process. However, It can be hard to predict data volume to be processed by a job because it can be different everyday.
<a href="/2022/06/17/adaptive-batch-scheduler-automatically-decide-parallelism-of-flink-batch-jobs/">...</a>
</p>
<a href="/2022/06/17/adaptive-batch-scheduler-automatically-decide-parallelism-of-flink-batch-jobs/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/06/05/apache-flink-kubernetes-operator-1.0.0-release-announcement/">Apache Flink Kubernetes Operator 1.0.0 Release Announcement</a>
</h3>
June 5, 2022 -
Gyula Fora
<a href="https://twitter.com/GyulaFora">(@GyulaFora)</a>
Yang Wang
<p>In the last two months since our initial preview release the community has been hard at work to stabilize and improve the core Flink Kubernetes Operator logic. We are now proud to announce the first production ready release of the operator project.
Release Highlights # The Flink Kubernetes Operator 1.0.0 version brings numerous improvements and new features to almost every aspect of the operator.
New v1beta1 API version &amp; compatibility guarantees Session Job Management support Support for Flink 1.
<a href="/2022/06/05/apache-flink-kubernetes-operator-1.0.0-release-announcement/">...</a>
</p>
<a href="/2022/06/05/apache-flink-kubernetes-operator-1.0.0-release-announcement/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/05/30/improving-speed-and-stability-of-checkpointing-with-generic-log-based-incremental-checkpoints/">Improving speed and stability of checkpointing with generic log-based incremental checkpoints</a>
</h3>
May 30, 2022 -
Roman Khachatryan
Yuan Mei
<p>Introduction # One of the most important characteristics of stream processing systems is end-to-end latency, i.e. the time it takes for the results of processing an input record to reach the outputs. In the case of Flink, end-to-end latency mostly depends on the checkpointing mechanism, because processing results should only become visible after the state of the stream is persisted to non-volatile storage (this is assuming exactly-once mode; in other modes, results can be published immediately).
<a href="/2022/05/30/improving-speed-and-stability-of-checkpointing-with-generic-log-based-incremental-checkpoints/">...</a>
</p>
<a href="/2022/05/30/improving-speed-and-stability-of-checkpointing-with-generic-log-based-incremental-checkpoints/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/05/23/getting-into-low-latency-gears-with-apache-flink-part-two/">Getting into Low-Latency Gears with Apache Flink - Part Two</a>
</h3>
May 23, 2022 -
Jun Qin
Nico Kruber
<p>This series of blog posts present a collection of low-latency techniques in Flink. In part one, we discussed the types of latency in Flink and the way we measure end-to-end latency and presented a few techniques that optimize latency directly. In this post, we will continue with a few more direct latency optimization techniques. Just like in part one, for each optimization technique, we will clarify what it is, when to use it, and what to keep in mind when using it.
<a href="/2022/05/23/getting-into-low-latency-gears-with-apache-flink-part-two/">...</a>
</p>
<a href="/2022/05/23/getting-into-low-latency-gears-with-apache-flink-part-two/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/05/18/getting-into-low-latency-gears-with-apache-flink-part-one/">Getting into Low-Latency Gears with Apache Flink - Part One</a>
</h3>
May 18, 2022 -
Jun Qin
Nico Kruber
<p>Apache Flink is a stream processing framework well known for its low latency processing capabilities. It is generic and suitable for a wide range of use cases. As a Flink application developer or a cluster administrator, you need to find the right gear that is best for your application. In other words, you don&rsquo;t want to be driving a luxury sports car while only using the first gear.
In this multi-part series, we will present a collection of low-latency techniques in Flink.
<a href="/2022/05/18/getting-into-low-latency-gears-with-apache-flink-part-one/">...</a>
</p>
<a href="/2022/05/18/getting-into-low-latency-gears-with-apache-flink-part-one/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/05/11/apache-flink-table-store-0.1.0-release-announcement/">Apache Flink Table Store 0.1.0 Release Announcement</a>
</h3>
May 11, 2022 -
Jingsong Lee
Jiangjie (Becket) Qin
<p>The Apache Flink community is pleased to announce the preview release of the Apache Flink Table Store (0.1.0).
Please check out the full documentation for detailed information and user guides.
Note: Flink Table Store is still in beta status and undergoing rapid development. We do not recommend that you use it directly in a production environment.
What is Flink Table Store # In the past years, thanks to our numerous contributors and users, Apache Flink has established itself as one of the best distributed computing engines, especially for stateful stream processing at large scale.
<a href="/2022/05/11/apache-flink-table-store-0.1.0-release-announcement/">...</a>
</p>
<a href="/2022/05/11/apache-flink-table-store-0.1.0-release-announcement/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/05/06/exploring-the-thread-mode-in-pyflink/">Exploring the thread mode in PyFlink</a>
</h3>
May 6, 2022 -
Xingbo Huang
Dian Fu
<p>PyFlink was introduced in Flink 1.9 which purpose is to bring the power of Flink to Python users and allow Python users to develop Flink jobs in Python language. The functionality becomes more and more mature through the development in the past releases.
Before Flink 1.15, Python user-defined functions will be executed in separate Python processes (based on the Apache Beam Portability Framework). It will bring additional serialization/deserialization overhead and also communication overhead.
<a href="/2022/05/06/exploring-the-thread-mode-in-pyflink/">...</a>
</p>
<a href="/2022/05/06/exploring-the-thread-mode-in-pyflink/">Continue reading »</a>
</article>
<article class="markdown book-post">
<h3>
<a href="/2022/05/06/improvements-to-flink-operations-snapshots-ownership-and-savepoint-formats/">Improvements to Flink operations: Snapshots Ownership and Savepoint Formats</a>
</h3>
May 6, 2022 -
Dawid Wysakowicz
<a href="https://twitter.com/dwysakowicz">(@dwysakowicz)</a>
Daisy Tsang
<p>Flink has become a well established data streaming engine and a mature project requires some shifting of priorities from thinking purely about new features towards improving stability and operational simplicity. In the last couple of releases, the Flink community has tried to address some known friction points, which includes improvements to the snapshotting process. Snapshotting takes a global, consistent image of the state of a Flink job and is integral to fault-tolerance and exacty-once processing.
<a href="/2022/05/06/improvements-to-flink-operations-snapshots-ownership-and-savepoint-formats/">...</a>
</p>
<a href="/2022/05/06/improvements-to-flink-operations-snapshots-ownership-and-savepoint-formats/">Continue reading »</a>
</article>
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<a href="https://flink.apache.org/2024/03/21/apache-flink-kubernetes-operator-1.8.0-release-announcement/">Apache Flink Kubernetes Operator 1.8.0 Release Announcement</a>
</li>
<li>
<a href="https://flink.apache.org/2024/03/18/announcing-the-release-of-apache-flink-1.19/">Announcing the Release of Apache Flink 1.19</a>
</li>
<li>
<a href="https://flink.apache.org/2024/01/19/apache-flink-1.18.1-release-announcement/">Apache Flink 1.18.1 Release Announcement</a>
</li>
<li>
<a href="https://flink.apache.org/2023/11/29/apache-flink-1.16.3-release-announcement/">Apache Flink 1.16.3 Release Announcement</a>
</li>
<li>
<a href="https://flink.apache.org/2023/11/29/apache-flink-1.17.2-release-announcement/">Apache Flink 1.17.2 Release Announcement</a>
</li>
<li>
<a href="https://flink.apache.org/2023/11/22/apache-flink-kubernetes-operator-1.7.0-release-announcement/">Apache Flink Kubernetes Operator 1.7.0 Release Announcement</a>
</li>
<li>
<a href="https://flink.apache.org/2023/10/27/apache-flink-kubernetes-operator-1.6.1-release-announcement/">Apache Flink Kubernetes Operator 1.6.1 Release Announcement</a>
</li>
<li>
<a href="https://flink.apache.org/2023/10/24/announcing-the-release-of-apache-flink-1.18/">Announcing the Release of Apache Flink 1.18</a>
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<a href="https://flink.apache.org/2023/09/19/stateful-functions-3.3.0-release-announcement/">Stateful Functions 3.3.0 Release Announcement</a>
</li>
<li>
<a href="https://flink.apache.org/2023/08/15/apache-flink-kubernetes-operator-1.6.0-release-announcement/">Apache Flink Kubernetes Operator 1.6.0 Release Announcement</a>
</li>
<li>
<a href="https://flink.apache.org/2023/08/04/announcing-three-new-apache-flink-connectors-the-new-connector-versioning-strategy-and-externalization/">Announcing three new Apache Flink connectors, the new connector versioning strategy and externalization</a>
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<li>
<a href="https://flink.apache.org/2023/07/03/sigmod-systems-award-for-apache-flink/">SIGMOD Systems Award for Apache Flink</a>
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<a href="https://flink.apache.org/2023/05/25/apache-flink-1.16.2-release-announcement/">Apache Flink 1.16.2 Release Announcement</a>
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<a href="https://flink.apache.org/2023/05/25/apache-flink-1.17.1-release-announcement/">Apache Flink 1.17.1 Release Announcement</a>
</li>
<li>
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<a href="https://flink.apache.org/2023/04/19/apache-flink-ml-2.2.0-release-announcement/">Apache Flink ML 2.2.0 Release Announcement</a>
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<a href="https://flink.apache.org/2018/12/22/apache-flink-1.6.3-released/">Apache Flink 1.6.3 Released</a>
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<a href="https://flink.apache.org/2018/10/29/apache-flink-1.5.5-released/">Apache Flink 1.5.5 Released</a>
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<a href="https://flink.apache.org/2017/08/05/apache-flink-1.3.2-released/">Apache Flink 1.3.2 Released</a>
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<a href="https://flink.apache.org/2017/02/06/announcing-apache-flink-1.2.0/">Announcing Apache Flink 1.2.0</a>
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<a href="https://flink.apache.org/2016/12/19/apache-flink-in-2016-year-in-review/">Apache Flink in 2016: Year in Review</a>
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<a href="https://flink.apache.org/2016/10/12/apache-flink-1.1.3-released/">Apache Flink 1.1.3 Released</a>
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<a href="https://flink.apache.org/2016/09/05/apache-flink-1.1.2-released/">Apache Flink 1.1.2 Released</a>
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<a href="https://flink.apache.org/2016/08/04/announcing-apache-flink-1.1.0/">Announcing Apache Flink 1.1.0</a>
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<a href="https://flink.apache.org/2016/08/04/flink-1.1.1-released/">Flink 1.1.1 Released</a>
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<a href="https://flink.apache.org/2016/05/24/stream-processing-for-everyone-with-sql-and-apache-flink/">Stream Processing for Everyone with SQL and Apache Flink</a>
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<a href="https://flink.apache.org/2016/05/11/flink-1.0.3-released/">Flink 1.0.3 Released</a>
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<a href="https://flink.apache.org/2016/04/22/flink-1.0.2-released/">Flink 1.0.2 Released</a>
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<a href="https://flink.apache.org/2016/04/14/flink-forward-2016-call-for-submissions-is-now-open/">Flink Forward 2016 Call for Submissions Is Now Open</a>
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<a href="https://flink.apache.org/2016/04/06/flink-1.0.1-released/">Flink 1.0.1 Released</a>
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<li>
<a href="https://flink.apache.org/2016/03/08/announcing-apache-flink-1.0.0/">Announcing Apache Flink 1.0.0</a>
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<a href="https://flink.apache.org/2016/02/11/flink-0.10.2-released/">Flink 0.10.2 Released</a>
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<a href="https://flink.apache.org/2015/12/18/flink-2015-a-year-in-review-and-a-lookout-to-2016/">Flink 2015: A year in review, and a lookout to 2016</a>
</li>
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<a href="https://flink.apache.org/2015/12/11/storm-compatibility-in-apache-flink-how-to-run-existing-storm-topologies-on-flink/">Storm Compatibility in Apache Flink: How to run existing Storm topologies on Flink</a>
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<a href="https://flink.apache.org/2015/12/04/introducing-stream-windows-in-apache-flink/">Introducing Stream Windows in Apache Flink</a>
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<a href="https://flink.apache.org/2015/11/27/flink-0.10.1-released/">Flink 0.10.1 released</a>
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<a href="https://flink.apache.org/2015/11/16/announcing-apache-flink-0.10.0/">Announcing Apache Flink 0.10.0</a>
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<a href="https://flink.apache.org/2015/09/16/off-heap-memory-in-apache-flink-and-the-curious-jit-compiler/">Off-heap Memory in Apache Flink and the curious JIT compiler</a>
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<a href="https://flink.apache.org/2015/09/03/announcing-flink-forward-2015/">Announcing Flink Forward 2015</a>
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<a href="https://flink.apache.org/2015/09/01/apache-flink-0.9.1-available/">Apache Flink 0.9.1 available</a>
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<a href="https://flink.apache.org/2015/08/24/introducing-gelly-graph-processing-with-apache-flink/">Introducing Gelly: Graph Processing with Apache Flink</a>
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<a href="https://flink.apache.org/2015/06/24/announcing-apache-flink-0.9.0/">Announcing Apache Flink 0.9.0</a>
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<a href="https://flink.apache.org/2015/05/14/april-2015-in-the-flink-community/">April 2015 in the Flink community</a>
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<a href="https://flink.apache.org/2015/05/11/juggling-with-bits-and-bytes/">Juggling with Bits and Bytes</a>
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<a href="https://flink.apache.org/2015/04/13/announcing-flink-0.9.0-milestone1-preview-release/">Announcing Flink 0.9.0-milestone1 preview release</a>
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<a href="https://flink.apache.org/2015/04/07/march-2015-in-the-flink-community/">March 2015 in the Flink community</a>
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<a href="https://flink.apache.org/2015/03/13/peeking-into-apache-flinks-engine-room/">Peeking into Apache Flink&#39;s Engine Room</a>
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<a href="https://flink.apache.org/2015/03/02/february-2015-in-the-flink-community/">February 2015 in the Flink community</a>
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<a href="https://flink.apache.org/2015/02/09/introducing-flink-streaming/">Introducing Flink Streaming</a>
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<a href="https://flink.apache.org/2015/02/04/january-2015-in-the-flink-community/">January 2015 in the Flink community</a>
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<a href="https://flink.apache.org/2015/01/21/apache-flink-0.8.0-available/">Apache Flink 0.8.0 available</a>
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<a href="https://flink.apache.org/2015/01/06/december-2014-in-the-flink-community/">December 2014 in the Flink community</a>
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<a href="https://flink.apache.org/2014/11/18/hadoop-compatibility-in-flink/">Hadoop Compatibility in Flink</a>
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<a href="https://flink.apache.org/2014/11/04/apache-flink-0.7.0-available/">Apache Flink 0.7.0 available</a>
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<a href="https://flink.apache.org/2014/09/26/apache-flink-0.6.1-available/">Apache Flink 0.6.1 available</a>
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