Hi guys! My name is Jevgeni Kabanov and I’m a computer scientist/hackerpreneur. Recently I’ve been trying to figure out what is happening in the world of Java EE production deployment and frankly it seems pretty scary. After speaking to over a 100 people these are my hypotheses:
- Nobody uses redeployment in production (as in the actual button that does in-server update). It just isn’t reliable enough due to OutOfMemoryError-s and other failures.
- The common way to update an application is to:
- Take all servers down at 2am and hope no one is using it.
- Take servers down one at a time, upgrade them and either drop or migrate the user sessions.
- Use weird hacks like copying one file at a time.
I'm also trying to find out how the update process happens, how hard it is and what does it cost in human measure (hours) and in soulless business measure (dollars).
I ask you to help me out and provide me with some semi-solid data I can use to better understand what’s going on in reality. Hopefully you’ll prove me wrong. Afterwards, I’ll make all the data I've collected publicly available.
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