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Simon Baslé

Simon Baslé

Project Reactor Lead

Nantes, France

Blog Posts by Simon Baslé

First milestone of Reactor 2020.0 (Codename Europium)

Earlier this month, we released a first milestone of Reactor 2020.0.
This cycle, codename Europium, follows the Dysprosium one (which included reactor-core 3.3.x and reactor-netty 0.9.x).

It includes reactor-core 3.4.0 and reactor-netty 1.0.0.

In this blog post, we’ll cover a few highlights of the reactor-core milestone, and briefly mention what’s in store for M2.

For reactor-netty, we’ll link to a separate blog post here as soon as it is out.

Note also that there is a new versioning scheme in place, which has been adopted accross the Spring portfolio: see the reference guide and this blog post.

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Flight of the Flux 3 - Hopping Threads and Schedulers

This blog post is the third in a series of posts that aim at providing a deeper look into Reactor’s more advanced concepts and inner workings.

In this post, we explore the threading model, how some (most) operators are concurrent agnostic, the Scheduler abstraction and how to hop from one thread to another mid-sequence with operators like publishOn.

This series is derived from the Flight of the Flux talk, which content I found to be more adapted to a blog post format.

The table below will be updated with links when the other posts are published, but here is the planned content:

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Flight of the Flux 2 - Debugging Caveats

This blog post is the second in a series of posts that aim at providing a deeper look into Reactor’s more advanced concepts and inner workings.

It is derived from my Flight of the Flux talk, which content I found to be more adapted to a blog post format.

I’ll update the table below with links when the other posts are published, but here is the planned content:

  1. Assembly vs Subscription
  2. Debugging caveats (this post)
  3. Hopping Threads and Schedulers
  4. Inner workings: work stealing
  5. Inner workings: operator fusion
Read more...

Flight of the Flux 1 - Assembly vs Subscription

This blog post is the first in a series of posts that aim at providing a deeper look into Reactor’s more advanced concepts and inner workings.

It is derived from my Flight of the Flux talk, which content I found to be more adapted to a blog post format.

I’ll update the table below with links when the other posts are published, but here is the planned content:

  1. Assembly vs Subscription (this post)
  2. Debugging caveats
  3. Hopping Threads and Schedulers
  4. Inner workings: work stealing
  5. Inner workings: operator fusion
Read more...

Reactor Californium-M1, this summer's Milestone release train

On behalf of the Reactor team, I have the pleasure of announcing the newest Reactor milestone, Californium-M1 🚢 🚂

The team has been busy working on Californium, the third major installment of Reactor 3. We are now ready for your feedback on a few select issues, and we have a lot of enhancements and bug fixes ready for your consumption as well.

Californium-M1 BOM

For its third release train, we continue on the theme of alphabetically increasing names on the periodic table of elements. Californium is an element first synthesized in California.

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Announcing Reactor Bismuth-SR10

On behalf of the Reactor team, I have the pleasure of announcing a first shipment of Reactor goodness this week: Reactor Bismuth-SR10 is out 🚢

Stay tuned for a Reactor Californium milestone later this week 🕵🏻‍♂️

Reactor Bismuth-SR10

The latest maintenance BOM of the 3.1.x line, Bismuth-SR10, is out. It includes two new artifacts (click on the version numbers to see the release notes on GitHub):

One update considerations though: Flux.last() used to skip throwing a NoSuchElementException on some category of empty sources (Flux or Mono that are Callable, like Flux.empty()). This is a bug and it correctly does throw now.

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Reactor BISMUTH-SR7 is out!

On behalf of the whole Reactor Team, it is my pleasure to announce that the Reactor BISMUTH-SR7 release train is now available. As always, we recommend using the reactor-bom Bill Of Material.

In time for Spring Boot 2, this release train comes with improvements and bugfixes to core, extras, and reactor-netty.

This blog post highlights the most significant changes in both SR7 and last week’s SR6 release trains.

Reactor-Core 3.1.5

What’s new since 3.1.3? See the full release notes of the 3.1.4.RELEASE and the 3.1.5.RELEASE. Core changes include more than 15 improvements and bugfixes.

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Sneak peek at Reactor-Core 3.2 with Milestone 1

Greetings Reactive Spring community!

While the team is still working heavily on the 3.1 line, we also wanted to give the community a chance to get a sneak peek at what’s coming for the future 3.2 line.

In particular, the big goodie slated for 3.2.0.RELEASE is the addition of what we’ve been calling "error mode", "continue mode" or lately more officially "error strategy".

The idea

It is simple, really: what if exceptions in user code that get executed within operators could be recovered from, allowing the sequence to continue?

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Reactor Bismuth is out

It is my great pleasure to announce the GA release of Reactor Bismuth, which notably encompasses reactor-core 3.1.0.RELEASE and reactor-netty 0.7.0.RELEASE 🎉

With the release of Spring Framework 5.0 now just happening, you can imagine this is a giant step for Project Reactor :)

bismuth crystal
Like the bismuth crystal this release is intricate

 
The release contains a lot of changes and API polishing. For reactor-core you can find the exhaustive list in the release notes.

Important
There is a known (minor) issue with the reactor-core and reactor-test sources jars: They contain duplicate java source entries. See issue #887 for more details.
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Announcing First Release Candidate of Reactor Core 3.1

On behalf of the Reactor team, it is my pleasure to announce that reactor-core 3.1.0.RC1 has been released 🎉. This is a big last step towards GA release of 3.1 at the end of the month, the long term support version that will back Spring 5!

It is also complemented by various releases, all tied together in the Bismuth-M4 Release Train and BOM:

  • reactor-test, reactor-extra, reactor-adapter and reactor-logback all made the cut to 3.1.0.RC1
  • reactor-netty has seen significant updates and bug fixes in the new 0.7.0.M2 milestone
  • reactor-kafka has been released in its 1.0.0.M4 milestone
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