Upgrading Hazelcast IMDG Without Downtime: A deep dive into Rolling Upgrades


Upgrading software without downtime is one of the most important factors in systems that are highly-available. Users do not tolerate downtime from maintenance windows and expect their applications to be online all the time. Hazelcast IMDG® 3.8 introduced the ability to do online upgrades without any maintenance downtime. It means that business transactions can be processed while the software is being upgraded—keeping business users happy.

Join Hazelcast® Core Team Lead, Tom Bujok, in a deep dive overview of the Hazelcast IMDG feature Rolling Upgrades to learn how you can keep your system running continuously while upgrading IMDG servers and clients.

Presented By:

Tom Bujok
Software Engineer

Software Engineer at Hazelcast®. For the last ten years Tom has been working on numerous assignments fulfilling a range of roles, particularly dealing with design and development of small to large scale systems, mostly on the JVM. Tom is an enthusiastic open source contributor and the founder of a couple of open-source projects (babun, p2-maven-plugin, soap-ws). Finally, he is very keen on tutoring, presenting and live coding, especially in a non-fluffy way.