Hazelcast Blog

Hazelcast Blog


How Much Memory Do I Need for My Data … Part 2

Neil Stevenson
by Neil Stevenson | Mar 30, 2021

“How much memory do I need for my data?“. — continued! In an earlier post, the space needed to store basic data, such as numbers, was examined. However, we deferred the discussion related to more complex data structures, like the example below: Person { String firstName; String lastName; int age; } At the time, we […]

Hazelcast IMDG 4.2 GA is Released!

Jiri Holusa
by Jiri Holusa | Mar 24, 2021

It’s a pleasure to announce the general availability of Hazelcast IMDG 4.2! In this blog post, we highlight the most notable features and enhancements in this release. We resolved almost 150 GitHub issues and merged roughly 350 pull requests and you can find the complete list of changes in the release notes. Don’t hesitate to […]

Contract-First Development Using RestAssured and OpenAPI

Bence Eros
by Bence Eros | Mar 22, 2021

Contract-first development is a methodology where we first create a design document (or interface definition) that formally describes the REST API we are going to implement, before writing any actual prototype. This methodology is useful for clearly communicating the structure and capabilities of the upcoming API before we implement it. Given a formal description of […]


No posts were found matching that criteria.

Hazelcast Command Line is released!

Alparslan Avci
by Alparslan Avci | Feb 22, 2021

We are pleased to announce that Hazelcast Command Line 4.2020.12 is now available. It supports Hazelcast IMDG 4.1.1 and Hazelcast Management Center 4.2020.12. It took longer than anticipated to get a proper CLI for Hazelcast, however, we hope you will find it was worth the wait. In this blog post, we will go through what […]

How Much Memory Do I Need for My Data ?

Neil Stevenson
by Neil Stevenson | Feb 08, 2021

“How much memory do I need for my data?” This is a pretty common question at the start of Hazelcast projects. Load it and measure it is one answer, which is accurate but not exactly popular. So, let’s take a quick look at why capacity planning isn’t as simple as it seems, by stepping through […]

Hazelcast Jet 4.4 is Released!

Marko Topolnik
by Marko Topolnik | Feb 03, 2021

Today we’re releasing Hazelcast Jet 4.4 and we have some exciting new features! Jet SQL Hazelcast Jet 4.4 brings you the first beta version of our SQL interface. You can now log into Jet from the command line and issue queries against the data sources you specify. They can be both data at rest (batch sources) […]

Getting More from Your Mainframe by Integrating In-Memory Computing

Rahul Gupta
by Rahul Gupta | Feb 02, 2021

In the modern era of digital transformation, mainframe systems continue to stand out against the backdrop of the constantly changing ecosystem of global enterprise IT. More and more industries such as banking, retail, telecommunications, and healthcare rely on mainframe computing to manage processing of large volumes of data to serve thousands of users at any […]

Asynchronous C++ Client

by Ihsan Demir | Feb 01, 2021

Asynchronous C++ Client The latest release of the Hazelcast C++ client API features so many changes and there may be only a few APIs we didn’t touch. We kept the familiar structures and names as they were before, but we made numerous changes to take advantage of C++11 capabilities. Our new API fully supports asynchronous […]

Compile-time Non-Intrusive Serializer

by Ihsan Demir | Jan 28, 2021

I want to share an exciting new feature of Hazelcast C++ Client 4.0, the “Compile-time Non-Intrusive Serializer.” As you may already know, Hazelcast supports multiple ways of serialization. You can serialize an object into bytes and deserialize bytes into objects in one of the following ways using Hazelcast API: identified_serializer: This is by far one […]

A New Hero is Born: Lenny Primak

Nicolas Frankel
by Nicolas Frankel | Jan 27, 2021

Since we announced the nomination of Tomasz Gawęda, a new Hero has popped up. We are very happy to officially nominate Lenny Primak from the USA to be our latest Hero in the program. Lenny is a long-time contributor, but some of the Pull Requests he made couldn’t be merged by our teams in a […]

Hazelcast Python Client 4.0 is Released

Metin Dumandag
by Metin Dumandag | Jan 19, 2021

We are happy to announce that the Hazelcast Python Client 4.0 is released! You can install the latest version through PyPI by issuing the following command. pip install hazelcast-python-client Let’s dive into the highlights of this release! Hazelcast Client Protocol 2.0 Python client now uses Hazelcast Open Binary Protocol 2.0, which features numerous enhancements over […]

Hazelcast Discovery Auto Detection

Rafal Leszko
by Rafal Leszko | Jan 06, 2021

Hazelcast was always well integrated with all cloud environments thanks to discovery plugins like Hazelcast AWS Plugin or Hazelcast Kubernetes Plugin. With the IMDG 4.1 release, however, we went one step further in making Hazelcast as user friendly as possible. Hazelcast can now automatically discover the environment it is running in and find a suitable […]


Subscribe to the blog

Follow us on: