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new 6dbfb0e Rebuild website
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commit 6dbfb0e75b4baa93ccdee83ce6e6bd01c581fb5d
Author: Chesnay Schepler <[email protected]>
AuthorDate: Wed Nov 3 12:37:47 2021 +0100
Rebuild website
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content/index.html | 8 +-
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22 files changed, 873 insertions(+), 347 deletions(-)
diff --git a/content/2021/11/03/flink-backward.html
b/content/2021/11/03/flink-backward.html
new file mode 100644
index 0000000..79a1130
--- /dev/null
+++ b/content/2021/11/03/flink-backward.html
@@ -0,0 +1,357 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <meta charset="utf-8">
+ <meta http-equiv="X-UA-Compatible" content="IE=edge">
+ <meta name="viewport" content="width=device-width, initial-scale=1">
+ <!-- The above 3 meta tags *must* come first in the head; any other head
content must come *after* these tags -->
+ <title>Apache Flink: Flink Backward - The Apache Flink
Retrospective</title>
+ <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon">
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+
+ </div>
+ <div class="col-sm-9">
+ <div class="row-fluid">
+ <div class="col-sm-12">
+ <div class="row">
+ <h1>Flink Backward - The Apache Flink Retrospective</h1>
+ <p><i></i></p>
+
+ <article>
+ <p>03 Nov 2021 Johannes Moser </p>
+
+<p>It has now been a month since the community released <a
href="https://flink.apache.org/downloads.html#apache-flink-1140";>Apache Flink
1.14</a> into the wild. We had a comprehensive look at the enhancements,
additions, and fixups in the release announcement blog post, and now we will
look at the development cycle from a different angle. Based on feedback
collected from contributors involved in this release, we will explore the
experiences and processes behind it all.</p>
+
+<div class="page-toc">
+<ul id="markdown-toc">
+ <li><a href="#a-retrospective-on-the-release-cycle"
id="markdown-toc-a-retrospective-on-the-release-cycle">A retrospective on the
release cycle</a> <ul>
+ <li><a href="#problems-faced" id="markdown-toc-problems-faced">Problems
faced</a></li>
+ <li><a href="#things-enjoyed" id="markdown-toc-things-enjoyed">Things
enjoyed</a></li>
+ </ul>
+ </li>
+ <li><a href="#what-we-want-to-achieve-through-process-changes"
id="markdown-toc-what-we-want-to-achieve-through-process-changes">What we want
to achieve through process changes</a> <ul>
+ <li><a href="#transparency---let-the-community-participate"
id="markdown-toc-transparency---let-the-community-participate">Transparency -
let the community participate</a></li>
+ <li><a href="#stability---reduce-building-and-testing-pain"
id="markdown-toc-stability---reduce-building-and-testing-pain">Stability -
reduce building and testing pain</a></li>
+ <li><a href="#documentation---make-it-user-friendly"
id="markdown-toc-documentation---make-it-user-friendly">Documentation - make it
user-friendly</a></li>
+ <li><a href="#api-consistency---a-timeless-joyful-experience"
id="markdown-toc-api-consistency---a-timeless-joyful-experience">API
consistency - a timeless, joyful experience</a></li>
+ </ul>
+ </li>
+ <li><a href="#some-noteworthy-items"
id="markdown-toc-some-noteworthy-items">Some noteworthy items</a></li>
+</ul>
+
+</div>
+
+<h1 id="a-retrospective-on-the-release-cycle">A retrospective on the release
cycle</h1>
+
+<p>From the team, we collected emotions that have been attributed to points in
time of the 1.14 release cycle:</p>
+
+<center>
+<img src="/img/blog/2021-11-03-flink-backward/1.14-weather.png" width="70%" />
+</center>
+
+<p>The overall sentiment seems to be quite good. A ship crushed a robot two
times, someone felt sick towards the end, an octopus causing negative emotions
appeared in June…</p>
+
+<p>We looked at the origin of these emotions and analyzed what went well and
what could be improved. We also incorporated some feedback gathered from the
community.</p>
+
+<h2 id="problems-faced">Problems faced</h2>
+
+<p>No release is perfect, and the community is constantly looking to
improve.</p>
+
+<p>Apache Flink has active contributors from around the globe, many of whom do
not speak English as a first language. The community is still ironing out
processes for delivering high-quality documentation and blog posts from a
content perspective. It is a work in progress but we have contributors focusing
on this component.</p>
+
+<p>Each Flink release is built with the help of hundreds of contributors, each
working on different parts of the project. Changes to one module may affect
others in ways that are not always obvious. To maintain quality, the community
supports an expansive test suite. Invariably, some tests are found to be flaky.
Whenever we discover a test issue, the community opens a blocker issue that we
must resolve before the next release. In practice, this leads to contributors
triaging most test in [...]
+
+<p>Finally, the community pushed the planned feature freeze for 1.14 by two
weeks. Two weeks is an improvement from previous release cycles, but we hope to
continue improving this metric for 1.15.</p>
+
+<h2 id="things-enjoyed">Things enjoyed</h2>
+
+<p>The implementation of some features, such as <a
href="https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/deployment/memory/network_mem_tuning/#the-buffer-debloating-mechanism";>buffer
debloating</a> and <a
href="https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/deployment/finegrained_resource/";>fine-grained
resource management</a>, went smoothly. Though a few issues are now popping up
as people begin using them in production, it is satisfying to see an engine
[...]
+
+<p>We also said goodbye to some components, the old table planner and
integrated Mesos support. As any developer will tell you, there’s nothing
better than deleting old code and reducing complexity.</p>
+
+<h1 id="what-we-want-to-achieve-through-process-changes">What we want to
achieve through process changes</h1>
+
+<h2 id="transparency---let-the-community-participate">Transparency - let the
community participate</h2>
+
+<p>When approaching a release, usually a couple of weeks after the previous
release has been done, we set up bi-weekly meetings for the community to
discuss any issues regarding the release. The usefulness of those meetings
varied a lot, and so we started to <a
href="https://cwiki.apache.org/confluence/display/FLINK/1.14+Release";>track the
efforts</a> in the Apache Flink Confluence wiki.</p>
+
+<p>We came up with a system to label the current states of each feature:
“independent”, “won’t make it”, “very unlikely”, “will make it”, “done”, and
“done done”. We introduced the “done done” state since we lacked a shared
understanding of the definition of done. To qualify for “done done”, the
feature is manually tested by someone not involved in the implementation.
Additionally, there must exist comprehensive documentation that enables users
to use the feature.</p>
+
+<p>After each meeting, we provided updates on the mailing list and created a
corresponding burn-down chart. Those efforts have well been received by our
contributors, although they might still require some improvements.</p>
+
+<p>The meeting used to only be for those driving the primary efforts, but we
opened it up to the whole community for this release. While nobody ended up
joining, we will continue to make the meetings open to everyone.</p>
+
+<h2 id="stability---reduce-building-and-testing-pain">Stability - reduce
building and testing pain</h2>
+
+<p>At one point, as we were coming close to the feature freeze, the stability
of the master branch became quite unstable. Although we have encountered this
issue in the past, building and testing Flink under such conditions was not
ideal.</p>
+
+<p>As a result, we focused on reducing stability issues, and the release
managers have tried to organize and manage this effort. In future development
cycles, the whole community needs to focus on the stability of the master
branch. There are already improvements in the making, and they will hopefully
enhance the experience of contributing significantly.</p>
+
+<h2 id="documentation---make-it-user-friendly">Documentation - make it
user-friendly</h2>
+
+<p>Coming back to Apache traditions, most of the documentation (if any) was
still being pushed after the feature freeze. As mentioned before, documentation
is required to achieve the level of “done done”. Going forward, we will keep
more of an eye on pushing documentation earlier in the development process.
Apache Flink is an amazing piece of software that can solve so many problems,
but we can do so much more in improving the user experience and introducing it
to a wider audience.</p>
+
+<h2 id="api-consistency---a-timeless-joyful-experience">API consistency - a
timeless, joyful experience</h2>
+
+<p>The issue of API consistency was not caused by the 1.14 release, but popped
up during the development cycle nevertheless, including a bigger discussion on
the mailing list. While we tried to be transparent about the <a
href="https://cwiki.apache.org/confluence/display/FLINK/Stability+Annotations";>stability
guarantees of an API</a> (there are no guarantees across major versions), this
was not made very clear or easy to find. Since many users rely on
PublicEvolving APIs (due to a lack o [...]
+
+<p>Moving forward, we will document more clearly what the guarantees are and
introduce a process for promoting PublicEvolving APIs. This might involve
generating a report on any removed/modified PublicEvolving APIs during the
release cycle so that downstream projects can prepare for the changes.</p>
+
+<h1 id="some-noteworthy-items">Some noteworthy items</h1>
+
+<p>The first iteration for the buffer debloat feature was done in a
Hackathon.</p>
+
+<p>Our <a
href="https://cwiki.apache.org/confluence/display/FLINK/1.14+Release";>Apache
Flink 1.14 Release wiki page</a> has 167 historic versions. For comparison, <a
href="https://cwiki.apache.org/confluence/display/FLINK/FLIP-147%3A+Support+Checkpoints+After+Tasks+Finished";>FLIP
147</a> (one of the most active FLIPs) has just 76.</p>
+
+<p>With <a
href="https://issues.apache.org/jira/browse/FLINK-2491";>FLINK-2491</a>, we
closed the third most watched issue in the Apache Flink Jira. This makes sense
since FLINK-2491 was created 6 years ago (August 6, 2015). The second oldest
issue was created in 2017.</p>
+
+<p>:heart:</p>
+
+<p>An open source community is more than just working on software. Apache
Flink is the perfect example of software that is collaborated on in all parts
of the world. The active mailing list, the discussions on FLIPs, and the
interactions on Jira tickets all document how people work together to build
something great. We should never forget that.</p>
+
+<p>In the meantime, the community is already working towards Apache Flink
1.15. If you would like to become a contributor, please reach out via the <a
href="https://flink.apache.org/community.html#mailing-lists";>dev mailing
list</a>. We are happy to help you find a ticket to get started on.</p>
+
+ </article>
+ </div>
+
+ <div class="row">
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diff --git a/content/blog/feed.xml b/content/blog/feed.xml
index 469cafe..6934262 100644
--- a/content/blog/feed.xml
+++ b/content/blog/feed.xml
@@ -7,6 +7,104 @@
<atom:link href="https://flink.apache.org/blog/feed.xml"; rel="self"
type="application/rss+xml" />
<item>
+<title>Flink Backward - The Apache Flink Retrospective</title>
+<description><p>It has now been a month since the community released
<a
href="https://flink.apache.org/downloads.html#apache-flink-1140">Apache
Flink 1.14</a> into the wild. We had a comprehensive look at the
enhancements, additions, and fixups in the release announcement blog post, and
now we will look at the development cycle from a different angle. Based on
feedback collected from contributors involved in this release, we will explore
the experiences and pr [...]
+
+<div class="page-toc">
+<ul id="markdown-toc">
+ <li><a href="#a-retrospective-on-the-release-cycle"
id="markdown-toc-a-retrospective-on-the-release-cycle">A
retrospective on the release cycle</a> <ul>
+ <li><a href="#problems-faced"
id="markdown-toc-problems-faced">Problems
faced</a></li>
+ <li><a href="#things-enjoyed"
id="markdown-toc-things-enjoyed">Things
enjoyed</a></li>
+ </ul>
+ </li>
+ <li><a
href="#what-we-want-to-achieve-through-process-changes"
id="markdown-toc-what-we-want-to-achieve-through-process-changes">What
we want to achieve through process changes</a> <ul>
+ <li><a
href="#transparency---let-the-community-participate"
id="markdown-toc-transparency---let-the-community-participate">Transparency
- let the community participate</a></li>
+ <li><a
href="#stability---reduce-building-and-testing-pain"
id="markdown-toc-stability---reduce-building-and-testing-pain">Stability
- reduce building and testing pain</a></li>
+ <li><a href="#documentation---make-it-user-friendly"
id="markdown-toc-documentation---make-it-user-friendly">Documentation
- make it user-friendly</a></li>
+ <li><a
href="#api-consistency---a-timeless-joyful-experience"
id="markdown-toc-api-consistency---a-timeless-joyful-experience">API
consistency - a timeless, joyful experience</a></li>
+ </ul>
+ </li>
+ <li><a href="#some-noteworthy-items"
id="markdown-toc-some-noteworthy-items">Some noteworthy
items</a></li>
+</ul>
+
+</div>
+
+<h1 id="a-retrospective-on-the-release-cycle">A retrospective
on the release cycle</h1>
+
+<p>From the team, we collected emotions that have been attributed to
points in time of the 1.14 release cycle:</p>
+
+<center>
+<img src="/img/blog/2021-11-03-flink-backward/1.14-weather.png"
width="70%" />
+</center>
+
+<p>The overall sentiment seems to be quite good. A ship crushed a robot
two times, someone felt sick towards the end, an octopus causing negative
emotions appeared in June…</p>
+
+<p>We looked at the origin of these emotions and analyzed what went well
and what could be improved. We also incorporated some feedback gathered from
the community.</p>
+
+<h2 id="problems-faced">Problems faced</h2>
+
+<p>No release is perfect, and the community is constantly looking to
improve.</p>
+
+<p>Apache Flink has active contributors from around the globe, many of
whom do not speak English as a first language. The community is still ironing
out processes for delivering high-quality documentation and blog posts from a
content perspective. It is a work in progress but we have contributors focusing
on this component.</p>
+
+<p>Each Flink release is built with the help of hundreds of
contributors, each working on different parts of the project. Changes to one
module may affect others in ways that are not always obvious. To maintain
quality, the community supports an expansive test suite. Invariably, some tests
are found to be flaky. Whenever we discover a test issue, the community opens a
blocker issue that we must resolve before the next release. In practice, this
leads to contributors triaging most t [...]
+
+<p>Finally, the community pushed the planned feature freeze for 1.14 by
two weeks. Two weeks is an improvement from previous release cycles, but we
hope to continue improving this metric for 1.15.</p>
+
+<h2 id="things-enjoyed">Things enjoyed</h2>
+
+<p>The implementation of some features, such as <a
href="https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/deployment/memory/network_mem_tuning/#the-buffer-debloating-mechanism">buffer
debloating</a> and <a
href="https://nightlies.apache.org/flink/flink-docs-release-1.14/docs/deployment/finegrained_resource/">fine-grained
resource management</a>, went smoothly. Though a few issues are now
popping up as people begin using the [...]
+
+<p>We also said goodbye to some components, the old table planner and
integrated Mesos support. As any developer will tell you, there’s nothing
better than deleting old code and reducing complexity.</p>
+
+<h1 id="what-we-want-to-achieve-through-process-changes">What
we want to achieve through process changes</h1>
+
+<h2
id="transparency---let-the-community-participate">Transparency -
let the community participate</h2>
+
+<p>When approaching a release, usually a couple of weeks after the
previous release has been done, we set up bi-weekly meetings for the community
to discuss any issues regarding the release. The usefulness of those meetings
varied a lot, and so we started to <a
href="https://cwiki.apache.org/confluence/display/FLINK/1.14+Release">track
the efforts</a> in the Apache Flink Confluence wiki.</p>
+
+<p>We came up with a system to label the current states of each feature:
“independent”, “won’t make it”, “very unlikely”, “will make it”, “done”, and
“done done”. We introduced the “done done” state since we lacked a shared
understanding of the definition of done. To qualify for “done done”, the
feature is manually tested by someone not involved in the implementation.
Additionally, there must exist comprehensive documentation that enables users
to use the feature.</p>
+
+<p>After each meeting, we provided updates on the mailing list and
created a corresponding burn-down chart. Those efforts have well been received
by our contributors, although they might still require some
improvements.</p>
+
+<p>The meeting used to only be for those driving the primary efforts,
but we opened it up to the whole community for this release. While nobody ended
up joining, we will continue to make the meetings open to everyone.</p>
+
+<h2
id="stability---reduce-building-and-testing-pain">Stability -
reduce building and testing pain</h2>
+
+<p>At one point, as we were coming close to the feature freeze, the
stability of the master branch became quite unstable. Although we have
encountered this issue in the past, building and testing Flink under such
conditions was not ideal.</p>
+
+<p>As a result, we focused on reducing stability issues, and the release
managers have tried to organize and manage this effort. In future development
cycles, the whole community needs to focus on the stability of the master
branch. There are already improvements in the making, and they will hopefully
enhance the experience of contributing significantly.</p>
+
+<h2 id="documentation---make-it-user-friendly">Documentation -
make it user-friendly</h2>
+
+<p>Coming back to Apache traditions, most of the documentation (if any)
was still being pushed after the feature freeze. As mentioned before,
documentation is required to achieve the level of “done done”. Going forward,
we will keep more of an eye on pushing documentation earlier in the development
process. Apache Flink is an amazing piece of software that can solve so many
problems, but we can do so much more in improving the user experience and
introducing it to a wider audience. [...]
+
+<h2 id="api-consistency---a-timeless-joyful-experience">API
consistency - a timeless, joyful experience</h2>
+
+<p>The issue of API consistency was not caused by the 1.14 release, but
popped up during the development cycle nevertheless, including a bigger
discussion on the mailing list. While we tried to be transparent about the
<a
href="https://cwiki.apache.org/confluence/display/FLINK/Stability+Annotations">stability
guarantees of an API</a> (there are no guarantees across major
versions), this was not made very clear or easy to find. Since many users rely
on PublicEv [...]
+
+<p>Moving forward, we will document more clearly what the guarantees are
and introduce a process for promoting PublicEvolving APIs. This might involve
generating a report on any removed/modified PublicEvolving APIs during the
release cycle so that downstream projects can prepare for the changes.</p>
+
+<h1 id="some-noteworthy-items">Some noteworthy items</h1>
+
+<p>The first iteration for the buffer debloat feature was done in a
Hackathon.</p>
+
+<p>Our <a
href="https://cwiki.apache.org/confluence/display/FLINK/1.14+Release">Apache
Flink 1.14 Release wiki page</a> has 167 historic versions. For
comparison, <a
href="https://cwiki.apache.org/confluence/display/FLINK/FLIP-147%3A+Support+Checkpoints+After+Tasks+Finished">FLIP
147</a> (one of the most active FLIPs) has just 76.</p>
+
+<p>With <a
href="https://issues.apache.org/jira/browse/FLINK-2491">FLINK-2491</a>,
we closed the third most watched issue in the Apache Flink Jira. This makes
sense since FLINK-2491 was created 6 years ago (August 6, 2015). The second
oldest issue was created in 2017.</p>
+
+<p>:heart:</p>
+
+<p>An open source community is more than just working on software.
Apache Flink is the perfect example of software that is collaborated on in all
parts of the world. The active mailing list, the discussions on FLIPs, and the
interactions on Jira tickets all document how people work together to build
something great. We should never forget that.</p>
+
+<p>In the meantime, the community is already working towards Apache
Flink 1.15. If you would like to become a contributor, please reach out via the
<a
href="https://flink.apache.org/community.html#mailing-lists">dev
mailing list</a>. We are happy to help you find a ticket to get started
on.</p>
+</description>
+<pubDate>Wed, 03 Nov 2021 01:00:00 +0100</pubDate>
+<link>https://flink.apache.org/2021/11/03/flink-backward.html</link>
+<guid isPermaLink="true">/2021/11/03/flink-backward.html</guid>
+</item>
+
+<item>
<title>Sort-Based Blocking Shuffle Implementation in Flink - Part Two</title>
<description><p><a
href="/2021/10/26/sort-shuffle-part1">Part one</a> of this
blog post explained the motivation behind introducing sort-based blocking
shuffle, presented benchmark results, and provided guidelines on how to use
this new feature.</p>
@@ -20152,113 +20250,5 @@ Special credits go to the following members for
contributing to the 1.7.0 releas
<guid isPermaLink="true">/news/2018/10/29/release-1.6.2.html</guid>
</item>
-<item>
-<title>Apache Flink 1.5.5 Released</title>
-<description><p>The Apache Flink community released the fifth bugfix
version of the Apache Flink 1.5 series.</p>
-
-<p>This release includes more than 20 fixes and minor improvements for
Flink 1.5.4. The list below includes a detailed list of all fixes.</p>
-
-<p>We highly recommend all users to upgrade to Flink 1.5.5.</p>
-
-<p>Updated Maven dependencies:</p>
-
-<div class="highlight"><pre><code
class="language-xml"><span
class="nt">&lt;dependency&gt;</span>
- <span
class="nt">&lt;groupId&gt;</span>org.apache.flink<span
class="nt">&lt;/groupId&gt;</span>
- <span
class="nt">&lt;artifactId&gt;</span>flink-java<span
class="nt">&lt;/artifactId&gt;</span>
- <span
class="nt">&lt;version&gt;</span>1.5.5<span
class="nt">&lt;/version&gt;</span>
-<span class="nt">&lt;/dependency&gt;</span>
-<span class="nt">&lt;dependency&gt;</span>
- <span
class="nt">&lt;groupId&gt;</span>org.apache.flink<span
class="nt">&lt;/groupId&gt;</span>
- <span
class="nt">&lt;artifactId&gt;</span>flink-streaming-java_2.11<span
class="nt">&lt;/artifactId&gt;</span>
- <span
class="nt">&lt;version&gt;</span>1.5.5<span
class="nt">&lt;/version&gt;</span>
-<span class="nt">&lt;/dependency&gt;</span>
-<span class="nt">&lt;dependency&gt;</span>
- <span
class="nt">&lt;groupId&gt;</span>org.apache.flink<span
class="nt">&lt;/groupId&gt;</span>
- <span
class="nt">&lt;artifactId&gt;</span>flink-clients_2.11<span
class="nt">&lt;/artifactId&gt;</span>
- <span
class="nt">&lt;version&gt;</span>1.5.5<span
class="nt">&lt;/version&gt;</span>
-<span
class="nt">&lt;/dependency&gt;</span></code></pre></div>
-
-<p>You can find the binaries on the updated <a
href="http://flink.apache.org/downloads.html">Downloads
page</a>.</p>
-
-<p>List of resolved issues:</p>
-
-<h2> Sub-task
-</h2>
-<ul>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10242">FLINK-10242</a>]
- Latency marker interval should be configurable
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10243">FLINK-10243</a>]
- Add option to reduce latency metrics granularity
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10331">FLINK-10331</a>]
- Reduce number of flush requests to the network stack
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10332">FLINK-10332</a>]
- Move data available notification in PipelinedSubpartition out of the
synchronized block
-</li>
-</ul>
-
-<h2> Bug
-</h2>
-<ul>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-5542">FLINK-5542</a>]
- YARN client incorrectly uses local YARN config to check vcore
capacity
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-9567">FLINK-9567</a>]
- Flink does not release resource in Yarn Cluster mode
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-9788">FLINK-9788</a>]
- ExecutionGraph Inconsistency prevents Job from recovering
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-9884">FLINK-9884</a>]
- Slot request may not be removed when it has already be assigned in
slot manager
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-9891">FLINK-9891</a>]
- Flink cluster is not shutdown in YARN mode when Flink client is
stopped
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-9932">FLINK-9932</a>]
- Timed-out TaskExecutor slot-offers to JobMaster leak the slot
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10135">FLINK-10135</a>]
- Certain cluster-level metrics are no longer exposed
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10222">FLINK-10222</a>]
- Table scalar function expression parses error when function name
equals the exists keyword suffix
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10259">FLINK-10259</a>]
- Key validation for GroupWindowAggregate is broken
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10316">FLINK-10316</a>]
- Add check to KinesisProducer that aws.region is set
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10354">FLINK-10354</a>]
- Savepoints should be counted as retained checkpoints
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10400">FLINK-10400</a>]
- Return failed JobResult if job terminates in state FAILED or CANCELED
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10415">FLINK-10415</a>]
- RestClient does not react to lost connection
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10451">FLINK-10451</a>]
- TableFunctionCollector should handle the life cycle of ScalarFunction
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10469">FLINK-10469</a>]
- FileChannel may not write the whole buffer in a single call to
FileChannel.write(Buffer buffer)
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10487">FLINK-10487</a>]
- fix invalid Flink SQL example
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10516">FLINK-10516</a>]
- YarnApplicationMasterRunner does not initialize FileSystem with
correct Flink Configuration during setup
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10524">FLINK-10524</a>]
-
MemoryManagerConcurrentModReleaseTest.testConcurrentModificationWhileReleasing
failed on travis
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10544">FLINK-10544</a>]
- Remove custom settings.xml for snapshot deployments
-</li>
-</ul>
-
-<h2> Improvement
-</h2>
-<ul>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10075">FLINK-10075</a>]
- HTTP connections to a secured REST endpoint flood the log
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10260">FLINK-10260</a>]
- Confusing log messages during TaskManager registration
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10282">FLINK-10282</a>]
- Provide separate thread-pool for REST endpoint
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10312">FLINK-10312</a>]
- Wrong / missing exception when submitting job
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10375">FLINK-10375</a>]
- ExceptionInChainedStubException hides wrapped exception in cause
-</li>
-<li>[<a
href="https://issues.apache.org/jira/browse/FLINK-10582">FLINK-10582</a>]
- Make REST executor thread priority configurable
-</li>
-</ul>
-</description>
-<pubDate>Mon, 29 Oct 2018 13:00:00 +0100</pubDate>
-<link>https://flink.apache.org/news/2018/10/29/release-1.5.5.html</link>
-<guid isPermaLink="true">/news/2018/10/29/release-1.5.5.html</guid>
-</item>
-
</channel>
</rss>
diff --git a/content/blog/index.html b/content/blog/index.html
index 81a3025..5d94d64 100644
--- a/content/blog/index.html
+++ b/content/blog/index.html
@@ -201,6 +201,19 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a href="/2021/11/03/flink-backward.html">Flink
Backward - The Apache Flink Retrospective</a></h2>
+
+ <p>03 Nov 2021
+ Johannes Moser </p>
+
+ <p>A look back at the development cycle for Flink 1.14</p>
+
+ <p><a href="/2021/11/03/flink-backward.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking Shuffle
Implementation in Flink - Part Two</a></h2>
<p>26 Oct 2021
@@ -337,21 +350,6 @@ This new release brings various improvements to the
StateFun runtime, a leaner w
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2021/08/06/release-1.13.2.html">Apache Flink 1.13.2
Released</a></h2>
-
- <p>06 Aug 2021
- Yun Tang </p>
-
- <p><p>The Apache Flink community released the second bugfix version of
the Apache Flink 1.13 series.</p>
-
-</p>
-
- <p><a href="/news/2021/08/06/release-1.13.2.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -384,6 +382,16 @@ This new release brings various improvements to the
StateFun runtime, a leaner w
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page10/index.html b/content/blog/page10/index.html
index c495766..cef5742 100644
--- a/content/blog/page10/index.html
+++ b/content/blog/page10/index.html
@@ -201,6 +201,19 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a href="/news/2019/03/06/ffsf-preview.html">What
to expect from Flink Forward San Francisco 2019</a></h2>
+
+ <p>06 Mar 2019
+ Fabian Hueske (<a href="https://twitter.com/fhueske";>@fhueske</a>)</p>
+
+ <p>The third annual Flink Forward conference in San Francisco is just a
few weeks away. Let's see what Flink Forward SF 2019 has in store for the
Apache Flink and stream processing communities. This post covers some of its
highlights!</p>
+
+ <p><a href="/news/2019/03/06/ffsf-preview.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2019/02/25/monitoring-best-practices.html">Monitoring Apache Flink
Applications 101</a></h2>
<p>25 Feb 2019
@@ -333,21 +346,6 @@ Please check the <a
href="https://issues.apache.org/jira/secure/ReleaseNote.jspa
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2018/10/29/release-1.5.5.html">Apache Flink 1.5.5 Released</a></h2>
-
- <p>29 Oct 2018
- </p>
-
- <p><p>The Apache Flink community released the fifth bugfix version of
the Apache Flink 1.5 series.</p>
-
-</p>
-
- <p><a href="/news/2018/10/29/release-1.5.5.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -380,6 +378,16 @@ Please check the <a
href="https://issues.apache.org/jira/secure/ReleaseNote.jspa
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page11/index.html b/content/blog/page11/index.html
index 6126933..eb4b7c1 100644
--- a/content/blog/page11/index.html
+++ b/content/blog/page11/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2018/10/29/release-1.5.5.html">Apache Flink 1.5.5 Released</a></h2>
+
+ <p>29 Oct 2018
+ </p>
+
+ <p><p>The Apache Flink community released the fifth bugfix version of
the Apache Flink 1.5 series.</p>
+
+</p>
+
+ <p><a href="/news/2018/10/29/release-1.5.5.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2018/09/20/release-1.6.1.html">Apache Flink 1.6.1 Released</a></h2>
<p>20 Sep 2018
@@ -335,19 +350,6 @@
<hr>
- <article>
- <h2 class="blog-title"><a
href="/features/2018/03/01/end-to-end-exactly-once-apache-flink.html">An
Overview of End-to-End Exactly-Once Processing in Apache Flink (with Apache
Kafka, too!)</a></h2>
-
- <p>01 Mar 2018
- Piotr Nowojski (<a
href="https://twitter.com/PiotrNowojski";>@PiotrNowojski</a>) & Mike Winters
(<a href="https://twitter.com/wints";>@wints</a>)</p>
-
- <p>Flink 1.4.0 introduced a new feature that makes it possible to build
end-to-end exactly-once applications with Flink and data sources and sinks that
support transactions.</p>
-
- <p><a
href="/features/2018/03/01/end-to-end-exactly-once-apache-flink.html">Continue
reading »</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -380,6 +382,16 @@
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page12/index.html b/content/blog/page12/index.html
index 0083203..2084428 100644
--- a/content/blog/page12/index.html
+++ b/content/blog/page12/index.html
@@ -201,6 +201,19 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/features/2018/03/01/end-to-end-exactly-once-apache-flink.html">An
Overview of End-to-End Exactly-Once Processing in Apache Flink (with Apache
Kafka, too!)</a></h2>
+
+ <p>01 Mar 2018
+ Piotr Nowojski (<a
href="https://twitter.com/PiotrNowojski";>@PiotrNowojski</a>) & Mike Winters
(<a href="https://twitter.com/wints";>@wints</a>)</p>
+
+ <p>Flink 1.4.0 introduced a new feature that makes it possible to build
end-to-end exactly-once applications with Flink and data sources and sinks that
support transactions.</p>
+
+ <p><a
href="/features/2018/03/01/end-to-end-exactly-once-apache-flink.html">Continue
reading »</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2018/02/15/release-1.4.1.html">Apache Flink 1.4.1 Released</a></h2>
<p>15 Feb 2018
@@ -334,21 +347,6 @@ what’s coming in Flink 1.4.0 as well as a preview of what
the Flink community
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2017/05/16/official-docker-image.html">Introducing Docker Images
for Apache Flink</a></h2>
-
- <p>16 May 2017 by Patrick Lucas (Data Artisans) and Ismaël Mejía
(Talend) (<a href="https://twitter.com/";>@iemejia</a>)
- </p>
-
- <p><p>For some time, the Apache Flink community has provided scripts to
build a Docker image to run Flink. Now, starting with version 1.2.1, Flink will
have a <a href="https://hub.docker.com/r/_/flink/";>Docker image</a> on the
Docker Hub. This image is maintained by the Flink community and curated by the
<a href="https://github.com/docker-library/official-images";>Docker</a> team to
ensure it meets the quality standards for container images of the Docker
community.</p>
-
-</p>
-
- <p><a href="/news/2017/05/16/official-docker-image.html">Continue
reading »</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -381,6 +379,16 @@ what’s coming in Flink 1.4.0 as well as a preview of what
the Flink community
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page13/index.html b/content/blog/page13/index.html
index 8ac0709..8002476 100644
--- a/content/blog/page13/index.html
+++ b/content/blog/page13/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2017/05/16/official-docker-image.html">Introducing Docker Images
for Apache Flink</a></h2>
+
+ <p>16 May 2017 by Patrick Lucas (Data Artisans) and Ismaël Mejía
(Talend) (<a href="https://twitter.com/";>@iemejia</a>)
+ </p>
+
+ <p><p>For some time, the Apache Flink community has provided scripts to
build a Docker image to run Flink. Now, starting with version 1.2.1, Flink will
have a <a href="https://hub.docker.com/r/_/flink/";>Docker image</a> on the
Docker Hub. This image is maintained by the Flink community and curated by the
<a href="https://github.com/docker-library/official-images";>Docker</a> team to
ensure it meets the quality standards for container images of the Docker
community.</p>
+
+</p>
+
+ <p><a href="/news/2017/05/16/official-docker-image.html">Continue
reading »</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2017/04/26/release-1.2.1.html">Apache Flink 1.2.1 Released</a></h2>
<p>26 Apr 2017
@@ -328,21 +343,6 @@
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2016/08/24/ff16-keynotes-panels.html">Flink Forward 2016:
Announcing Schedule, Keynotes, and Panel Discussion</a></h2>
-
- <p>24 Aug 2016
- </p>
-
- <p><p>An update for the Flink community: the <a
href="http://flink-forward.org/kb_day/day-1/";>Flink Forward 2016 schedule</a>
is now available online. This year's event will include 2 days of talks from
stream processing experts at Google, MapR, Alibaba, Netflix, Cloudera, and
more. Following the talks is a full day of hands-on Flink training.</p>
-
-</p>
-
- <p><a href="/news/2016/08/24/ff16-keynotes-panels.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -375,6 +375,16 @@
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page14/index.html b/content/blog/page14/index.html
index 84ca9c2..53bc23b 100644
--- a/content/blog/page14/index.html
+++ b/content/blog/page14/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2016/08/24/ff16-keynotes-panels.html">Flink Forward 2016:
Announcing Schedule, Keynotes, and Panel Discussion</a></h2>
+
+ <p>24 Aug 2016
+ </p>
+
+ <p><p>An update for the Flink community: the <a
href="http://flink-forward.org/kb_day/day-1/";>Flink Forward 2016 schedule</a>
is now available online. This year's event will include 2 days of talks from
stream processing experts at Google, MapR, Alibaba, Netflix, Cloudera, and
more. Following the talks is a full day of hands-on Flink training.</p>
+
+</p>
+
+ <p><a href="/news/2016/08/24/ff16-keynotes-panels.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2016/08/11/release-1.1.1.html">Flink 1.1.1 Released</a></h2>
<p>11 Aug 2016
@@ -332,21 +347,6 @@
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2016/02/11/release-0.10.2.html">Flink 0.10.2 Released</a></h2>
-
- <p>11 Feb 2016
- </p>
-
- <p><p>Today, the Flink community released Flink version
<strong>0.10.2</strong>, the second bugfix release of the 0.10 series.</p>
-
-</p>
-
- <p><a href="/news/2016/02/11/release-0.10.2.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -379,6 +379,16 @@
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page15/index.html b/content/blog/page15/index.html
index 95be170..59e4508 100644
--- a/content/blog/page15/index.html
+++ b/content/blog/page15/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2016/02/11/release-0.10.2.html">Flink 0.10.2 Released</a></h2>
+
+ <p>11 Feb 2016
+ </p>
+
+ <p><p>Today, the Flink community released Flink version
<strong>0.10.2</strong>, the second bugfix release of the 0.10 series.</p>
+
+</p>
+
+ <p><a href="/news/2016/02/11/release-0.10.2.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2015/12/18/a-year-in-review.html">Flink 2015: A year in review, and
a lookout to 2016</a></h2>
<p>18 Dec 2015 by Robert Metzger (<a
href="https://twitter.com/";>@rmetzger_</a>)
@@ -336,21 +351,6 @@ vertex-centric or gather-sum-apply to Flink dataflows.</p>
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2015/06/24/announcing-apache-flink-0.9.0-release.html">Announcing
Apache Flink 0.9.0</a></h2>
-
- <p>24 Jun 2015
- </p>
-
- <p><p>The Apache Flink community is pleased to announce the availability
of the 0.9.0 release. The release is the result of many months of hard work
within the Flink community. It contains many new features and improvements
which were previewed in the 0.9.0-milestone1 release and have been polished
since then. This is the largest Flink release so far.</p>
-
-</p>
-
- <p><a
href="/news/2015/06/24/announcing-apache-flink-0.9.0-release.html">Continue
reading »</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -383,6 +383,16 @@ vertex-centric or gather-sum-apply to Flink dataflows.</p>
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page16/index.html b/content/blog/page16/index.html
index 25243f0..b239a0c 100644
--- a/content/blog/page16/index.html
+++ b/content/blog/page16/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2015/06/24/announcing-apache-flink-0.9.0-release.html">Announcing
Apache Flink 0.9.0</a></h2>
+
+ <p>24 Jun 2015
+ </p>
+
+ <p><p>The Apache Flink community is pleased to announce the availability
of the 0.9.0 release. The release is the result of many months of hard work
within the Flink community. It contains many new features and improvements
which were previewed in the 0.9.0-milestone1 release and have been polished
since then. This is the largest Flink release so far.</p>
+
+</p>
+
+ <p><a
href="/news/2015/06/24/announcing-apache-flink-0.9.0-release.html">Continue
reading »</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2015/05/14/Community-update-April.html">April 2015 in the Flink
community</a></h2>
<p>14 May 2015 by Kostas Tzoumas (<a
href="https://twitter.com/";>@kostas_tzoumas</a>)
@@ -342,21 +357,6 @@ and offers a new API including definition of flexible
windows.</p>
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2015/01/06/december-in-flink.html">December 2014 in the Flink
community</a></h2>
-
- <p>06 Jan 2015
- </p>
-
- <p><p>This is the first blog post of a “newsletter” like series where we
give a summary of the monthly activity in the Flink community. As the Flink
project grows, this can serve as a “tl;dr” for people that are not following
the Flink dev and user mailing lists, or those that are simply overwhelmed by
the traffic.</p>
-
-</p>
-
- <p><a href="/news/2015/01/06/december-in-flink.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -389,6 +389,16 @@ and offers a new API including definition of flexible
windows.</p>
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page17/index.html b/content/blog/page17/index.html
index 60796da..8781cb6 100644
--- a/content/blog/page17/index.html
+++ b/content/blog/page17/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2015/01/06/december-in-flink.html">December 2014 in the Flink
community</a></h2>
+
+ <p>06 Jan 2015
+ </p>
+
+ <p><p>This is the first blog post of a “newsletter” like series where we
give a summary of the monthly activity in the Flink community. As the Flink
project grows, this can serve as a “tl;dr” for people that are not following
the Flink dev and user mailing lists, or those that are simply overwhelmed by
the traffic.</p>
+
+</p>
+
+ <p><a href="/news/2015/01/06/december-in-flink.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2014/11/18/hadoop-compatibility.html">Hadoop Compatibility in
Flink</a></h2>
<p>18 Nov 2014 by Fabian Hüske (<a
href="https://twitter.com/";>@fhueske</a>)
@@ -310,6 +325,16 @@ academic and open source project that Flink originates
from.</p>
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page2/index.html b/content/blog/page2/index.html
index e028cef..367c1da 100644
--- a/content/blog/page2/index.html
+++ b/content/blog/page2/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2021/08/06/release-1.13.2.html">Apache Flink 1.13.2
Released</a></h2>
+
+ <p>06 Aug 2021
+ Yun Tang </p>
+
+ <p><p>The Apache Flink community released the second bugfix version of
the Apache Flink 1.13 series.</p>
+
+</p>
+
+ <p><a href="/news/2021/08/06/release-1.13.2.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2021/08/06/release-1.12.5.html">Apache Flink 1.12.5
Released</a></h2>
<p>06 Aug 2021
@@ -329,21 +344,6 @@ to develop scalable, consistent, and elastic distributed
applications.</p>
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2021/03/03/release-1.12.2.html">Apache Flink 1.12.2
Released</a></h2>
-
- <p>03 Mar 2021
- Yuan Mei & Roman Khachatryan </p>
-
- <p><p>The Apache Flink community released the next bugfix version of the
Apache Flink 1.12 series.</p>
-
-</p>
-
- <p><a href="/news/2021/03/03/release-1.12.2.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -376,6 +376,16 @@ to develop scalable, consistent, and elastic distributed
applications.</p>
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page3/index.html b/content/blog/page3/index.html
index 443fc28..978603b 100644
--- a/content/blog/page3/index.html
+++ b/content/blog/page3/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2021/03/03/release-1.12.2.html">Apache Flink 1.12.2
Released</a></h2>
+
+ <p>03 Mar 2021
+ Yuan Mei & Roman Khachatryan </p>
+
+ <p><p>The Apache Flink community released the next bugfix version of the
Apache Flink 1.12 series.</p>
+
+</p>
+
+ <p><a href="/news/2021/03/03/release-1.12.2.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a href="/2021/02/10/native-k8s-with-ha.html">How
to natively deploy Flink on Kubernetes with High-Availability (HA)</a></h2>
<p>10 Feb 2021
@@ -325,19 +340,6 @@
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2020/12/10/release-1.12.0.html">Apache Flink 1.12.0 Release
Announcement</a></h2>
-
- <p>10 Dec 2020
- Marta Paes (<a href="https://twitter.com/morsapaes";>@morsapaes</a>)
& Aljoscha Krettek (<a
href="https://twitter.com/aljoscha";>@aljoscha</a>)</p>
-
- <p>The Apache Flink community is excited to announce the release of
Flink 1.12.0! Close to 300 contributors worked on over 1k threads to bring
significant improvements to usability as well as new features to Flink users
across the whole API stack. We're particularly excited about adding efficient
batch execution to the DataStream API, Kubernetes HA as an alternative to
ZooKeeper, support for upsert mode in the Kafka SQL connector and the new
Python DataStream API! Read on for all m [...]
-
- <p><a href="/news/2020/12/10/release-1.12.0.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -370,6 +372,16 @@
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page4/index.html b/content/blog/page4/index.html
index 8285825..a531764 100644
--- a/content/blog/page4/index.html
+++ b/content/blog/page4/index.html
@@ -201,6 +201,19 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2020/12/10/release-1.12.0.html">Apache Flink 1.12.0 Release
Announcement</a></h2>
+
+ <p>10 Dec 2020
+ Marta Paes (<a href="https://twitter.com/morsapaes";>@morsapaes</a>)
& Aljoscha Krettek (<a
href="https://twitter.com/aljoscha";>@aljoscha</a>)</p>
+
+ <p>The Apache Flink community is excited to announce the release of
Flink 1.12.0! Close to 300 contributors worked on over 1k threads to bring
significant improvements to usability as well as new features to Flink users
across the whole API stack. We're particularly excited about adding efficient
batch execution to the DataStream API, Kubernetes HA as an alternative to
ZooKeeper, support for upsert mode in the Kafka SQL connector and the new
Python DataStream API! Read on for all m [...]
+
+ <p><a href="/news/2020/12/10/release-1.12.0.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2020/11/11/release-statefun-2.2.1.html">Stateful Functions 2.2.1
Release Announcement</a></h2>
<p>11 Nov 2020
@@ -329,21 +342,6 @@ as well as increased observability for operational
purposes.</p>
<hr>
- <article>
- <h2 class="blog-title"><a href="/2020/08/19/statefun.html">Monitoring
and Controlling Networks of IoT Devices with Flink Stateful Functions</a></h2>
-
- <p>19 Aug 2020
- Igal Shilman (<a
href="https://twitter.com/IgalShilman";>@IgalShilman</a>)</p>
-
- <p><p>In this blog post, we’ll take a look at a class of use cases that
is a natural fit for <a
href="https://flink.apache.org/stateful-functions.html";>Flink Stateful
Functions</a>: monitoring and controlling networks of connected devices (often
called the “Internet of Things” (IoT)).</p>
-
-</p>
-
- <p><a href="/2020/08/19/statefun.html">Continue reading »</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -376,6 +374,16 @@ as well as increased observability for operational
purposes.</p>
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page5/index.html b/content/blog/page5/index.html
index a67f18e..9df7508 100644
--- a/content/blog/page5/index.html
+++ b/content/blog/page5/index.html
@@ -201,6 +201,21 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a href="/2020/08/19/statefun.html">Monitoring
and Controlling Networks of IoT Devices with Flink Stateful Functions</a></h2>
+
+ <p>19 Aug 2020
+ Igal Shilman (<a
href="https://twitter.com/IgalShilman";>@IgalShilman</a>)</p>
+
+ <p><p>In this blog post, we’ll take a look at a class of use cases that
is a natural fit for <a
href="https://flink.apache.org/stateful-functions.html";>Flink Stateful
Functions</a>: monitoring and controlling networks of connected devices (often
called the “Internet of Things” (IoT)).</p>
+
+</p>
+
+ <p><a href="/2020/08/19/statefun.html">Continue reading »</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2020/08/06/external-resource.html">Accelerating your workload with
GPU and other external resources</a></h2>
<p>06 Aug 2020
@@ -328,22 +343,6 @@ illustrate this trend.</p>
<hr>
- <article>
- <h2 class="blog-title"><a
href="/ecosystem/2020/06/23/flink-on-zeppelin-part2.html">Flink on Zeppelin
Notebooks for Interactive Data Analysis - Part 2</a></h2>
-
- <p>23 Jun 2020
- Jeff Zhang (<a href="https://twitter.com/zjffdu";>@zjffdu</a>)</p>
-
- <p><p>In a previous post, we introduced the basics of Flink on Zeppelin
and how to do Streaming ETL. In this second part of the “Flink on Zeppelin”
series of posts, I will share how to
-perform streaming data visualization via Flink on Zeppelin and how to use
Apache Flink UDFs in Zeppelin.</p>
-
-</p>
-
- <p><a href="/ecosystem/2020/06/23/flink-on-zeppelin-part2.html">Continue
reading »</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -376,6 +375,16 @@ perform streaming data visualization via Flink on Zeppelin
and how to use Apache
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page6/index.html b/content/blog/page6/index.html
index fed1781..1b2694b 100644
--- a/content/blog/page6/index.html
+++ b/content/blog/page6/index.html
@@ -201,6 +201,22 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/ecosystem/2020/06/23/flink-on-zeppelin-part2.html">Flink on Zeppelin
Notebooks for Interactive Data Analysis - Part 2</a></h2>
+
+ <p>23 Jun 2020
+ Jeff Zhang (<a href="https://twitter.com/zjffdu";>@zjffdu</a>)</p>
+
+ <p><p>In a previous post, we introduced the basics of Flink on Zeppelin
and how to do Streaming ETL. In this second part of the “Flink on Zeppelin”
series of posts, I will share how to
+perform streaming data visualization via Flink on Zeppelin and how to use
Apache Flink UDFs in Zeppelin.</p>
+
+</p>
+
+ <p><a href="/ecosystem/2020/06/23/flink-on-zeppelin-part2.html">Continue
reading »</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2020/06/15/flink-on-zeppelin-part1.html">Flink on Zeppelin
Notebooks for Interactive Data Analysis - Part 1</a></h2>
<p>15 Jun 2020
@@ -327,19 +343,6 @@ and provide a tutorial for running Streaming ETL with
Flink on Zeppelin.</p>
<hr>
- <article>
- <h2 class="blog-title"><a
href="/2020/04/09/pyflink-udf-support-flink.html">PyFlink: Introducing Python
Support for UDFs in Flink's Table API</a></h2>
-
- <p>09 Apr 2020
- Jincheng Sun (<a
href="https://twitter.com/sunjincheng121";>@sunjincheng121</a>) & Markos
Sfikas (<a href="https://twitter.com/MarkSfik";>@MarkSfik</a>)</p>
-
- <p>Flink 1.10 extends its support for Python by adding Python UDFs in
PyFlink. This post explains how UDFs work in PyFlink and gives some practical
examples of how to use UDFs in PyFlink.</p>
-
- <p><a href="/2020/04/09/pyflink-udf-support-flink.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -372,6 +375,16 @@ and provide a tutorial for running Streaming ETL with
Flink on Zeppelin.</p>
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page7/index.html b/content/blog/page7/index.html
index 8ab5b1a..324c912 100644
--- a/content/blog/page7/index.html
+++ b/content/blog/page7/index.html
@@ -201,6 +201,19 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/2020/04/09/pyflink-udf-support-flink.html">PyFlink: Introducing Python
Support for UDFs in Flink's Table API</a></h2>
+
+ <p>09 Apr 2020
+ Jincheng Sun (<a
href="https://twitter.com/sunjincheng121";>@sunjincheng121</a>) & Markos
Sfikas (<a href="https://twitter.com/MarkSfik";>@MarkSfik</a>)</p>
+
+ <p>Flink 1.10 extends its support for Python by adding Python UDFs in
PyFlink. This post explains how UDFs work in PyFlink and gives some practical
examples of how to use UDFs in PyFlink.</p>
+
+ <p><a href="/2020/04/09/pyflink-udf-support-flink.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2020/04/07/release-statefun-2.0.0.html">Stateful Functions 2.0 - An
Event-driven Database on Apache Flink</a></h2>
<p>07 Apr 2020
@@ -326,19 +339,6 @@ This release marks a big milestone: Stateful Functions 2.0
is not only an API up
<hr>
- <article>
- <h2 class="blog-title"><a
href="/news/2020/01/29/state-unlocked-interacting-with-state-in-apache-flink.html">State
Unlocked: Interacting with State in Apache Flink</a></h2>
-
- <p>29 Jan 2020
- Seth Wiesman (<a
href="https://twitter.com/sjwiesman";>@sjwiesman</a>)</p>
-
- <p>This post discusses the efforts of the Flink community as they relate
to state management in Apache Flink. We showcase some practical examples of how
the different features and APIs can be utilized and cover some future ideas for
new and improved ways of managing state in Apache Flink.</p>
-
- <p><a
href="/news/2020/01/29/state-unlocked-interacting-with-state-in-apache-flink.html">Continue
reading »</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -371,6 +371,16 @@ This release marks a big milestone: Stateful Functions 2.0
is not only an API up
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page8/index.html b/content/blog/page8/index.html
index 51d0e3f..7fe203f 100644
--- a/content/blog/page8/index.html
+++ b/content/blog/page8/index.html
@@ -201,6 +201,19 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/news/2020/01/29/state-unlocked-interacting-with-state-in-apache-flink.html">State
Unlocked: Interacting with State in Apache Flink</a></h2>
+
+ <p>29 Jan 2020
+ Seth Wiesman (<a
href="https://twitter.com/sjwiesman";>@sjwiesman</a>)</p>
+
+ <p>This post discusses the efforts of the Flink community as they relate
to state management in Apache Flink. We showcase some practical examples of how
the different features and APIs can be utilized and cover some future ideas for
new and improved ways of managing state in Apache Flink.</p>
+
+ <p><a
href="/news/2020/01/29/state-unlocked-interacting-with-state-in-apache-flink.html">Continue
reading »</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2020/01/15/demo-fraud-detection.html">Advanced Flink Application
Patterns Vol.1: Case Study of a Fraud Detection System</a></h2>
<p>15 Jan 2020
@@ -326,19 +339,6 @@
<hr>
- <article>
- <h2 class="blog-title"><a
href="/2019/07/23/flink-network-stack-2.html">Flink Network Stack Vol. 2:
Monitoring, Metrics, and that Backpressure Thing</a></h2>
-
- <p>23 Jul 2019
- Nico Kruber & Piotr Nowojski </p>
-
- <p>In a previous blog post, we presented how Flink’s network stack works
from the high-level abstractions to the low-level details. This second post
discusses monitoring network-related metrics to identify backpressure or
bottlenecks in throughput and latency.</p>
-
- <p><a href="/2019/07/23/flink-network-stack-2.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -371,6 +371,16 @@
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/blog/page9/index.html b/content/blog/page9/index.html
index a2a6a96..8ae7f30 100644
--- a/content/blog/page9/index.html
+++ b/content/blog/page9/index.html
@@ -201,6 +201,19 @@
<!-- Blog posts -->
<article>
+ <h2 class="blog-title"><a
href="/2019/07/23/flink-network-stack-2.html">Flink Network Stack Vol. 2:
Monitoring, Metrics, and that Backpressure Thing</a></h2>
+
+ <p>23 Jul 2019
+ Nico Kruber & Piotr Nowojski </p>
+
+ <p>In a previous blog post, we presented how Flink’s network stack works
from the high-level abstractions to the low-level details. This second post
discusses monitoring network-related metrics to identify backpressure or
bottlenecks in throughput and latency.</p>
+
+ <p><a href="/2019/07/23/flink-network-stack-2.html">Continue reading
»</a></p>
+ </article>
+
+ <hr>
+
+ <article>
<h2 class="blog-title"><a
href="/news/2019/07/02/release-1.8.1.html">Apache Flink 1.8.1 Released</a></h2>
<p>02 Jul 2019
@@ -327,19 +340,6 @@ for more details.</p>
<hr>
- <article>
- <h2 class="blog-title"><a href="/news/2019/03/06/ffsf-preview.html">What
to expect from Flink Forward San Francisco 2019</a></h2>
-
- <p>06 Mar 2019
- Fabian Hueske (<a href="https://twitter.com/fhueske";>@fhueske</a>)</p>
-
- <p>The third annual Flink Forward conference in San Francisco is just a
few weeks away. Let's see what Flink Forward SF 2019 has in store for the
Apache Flink and stream processing communities. This post covers some of its
highlights!</p>
-
- <p><a href="/news/2019/03/06/ffsf-preview.html">Continue reading
»</a></p>
- </article>
-
- <hr>
-
<!-- Pagination links -->
@@ -372,6 +372,16 @@ for more details.</p>
<ul id="markdown-toc">
+ <li><a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></li>
+
+
+
+
+
+
+
+
+
<li><a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></li>
diff --git a/content/img/blog/2021-11-03-flink-backward/1.14-weather.png
b/content/img/blog/2021-11-03-flink-backward/1.14-weather.png
new file mode 100644
index 0000000..a6a9a6e
Binary files /dev/null and
b/content/img/blog/2021-11-03-flink-backward/1.14-weather.png differ
diff --git a/content/index.html b/content/index.html
index f4e1d3e..b169a83 100644
--- a/content/index.html
+++ b/content/index.html
@@ -365,6 +365,9 @@
<dl>
+ <dt> <a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></dt>
+ <dd>A look back at the development cycle for Flink 1.14</dd>
+
<dt> <a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></dt>
<dd>Flink has implemented the sort-based blocking shuffle (FLIP-148)
for batch data processing. In this blog post, we will take a close look at the
design & implementation details and see what we can gain from it.</dd>
@@ -378,11 +381,6 @@
<dt> <a href="/news/2021/09/29/release-1.14.0.html">Apache Flink
1.14.0 Release Announcement</a></dt>
<dd>The Apache Flink community is excited to announce the release of
Flink 1.14.0! More than 200 contributor worked on over 1,000 issues. The
release brings exciting new features like a more seamless streaming/batch
integration, automatic network memory tuning, a hybrid source to switch data
streams between storgage systems (e.g., Kafka/S3), Fine-grained resource
management, PyFlink performance and debugging enhancements, and a Pulsar
connector.</dd>
-
- <dt> <a
href="/2021/09/07/connector-table-sql-api-part2.html">Implementing a custom
source connector for Table API and SQL - Part Two </a></dt>
- <dd><p>In <a href="/2021/09/07/connector-table-sql-api-part1">part
one</a> of this tutorial, you learned how to build a custom source connector
for Flink. In part two, you will learn how to integrate the connector with a
test email inbox through the IMAP protocol and filter out emails using Flink
SQL.</p>
-
-</dd>
</dl>
diff --git a/content/zh/index.html b/content/zh/index.html
index a860a16..d01fa7b 100644
--- a/content/zh/index.html
+++ b/content/zh/index.html
@@ -362,6 +362,9 @@
<dl>
+ <dt> <a href="/2021/11/03/flink-backward.html">Flink Backward - The
Apache Flink Retrospective</a></dt>
+ <dd>A look back at the development cycle for Flink 1.14</dd>
+
<dt> <a href="/2021/10/26/sort-shuffle-part2.html">Sort-Based Blocking
Shuffle Implementation in Flink - Part Two</a></dt>
<dd>Flink has implemented the sort-based blocking shuffle (FLIP-148)
for batch data processing. In this blog post, we will take a close look at the
design & implementation details and see what we can gain from it.</dd>
@@ -375,11 +378,6 @@
<dt> <a href="/news/2021/09/29/release-1.14.0.html">Apache Flink
1.14.0 Release Announcement</a></dt>
<dd>The Apache Flink community is excited to announce the release of
Flink 1.14.0! More than 200 contributor worked on over 1,000 issues. The
release brings exciting new features like a more seamless streaming/batch
integration, automatic network memory tuning, a hybrid source to switch data
streams between storgage systems (e.g., Kafka/S3), Fine-grained resource
management, PyFlink performance and debugging enhancements, and a Pulsar
connector.</dd>
-
- <dt> <a
href="/2021/09/07/connector-table-sql-api-part2.html">Implementing a custom
source connector for Table API and SQL - Part Two </a></dt>
- <dd><p>In <a href="/2021/09/07/connector-table-sql-api-part1">part
one</a> of this tutorial, you learned how to build a custom source connector
for Flink. In part two, you will learn how to integrate the connector with a
test email inbox through the IMAP protocol and filter out emails using Flink
SQL.</p>
-
-</dd>
</dl>
