Re:A year with Go
by sleepydog on Friday June 05, 2015 @11:25PM
(#9669507)
As someone else who has been deploying Java applications for years, I'm not saying it's hard, but you have to take care when upgrading the JRE on a server, because with most setups (such as the default Sun JDK RHEL packages) it's a shared resource. You can go ahead and bundle a JRE with your jars. With Go this specific problem doesn't exist.
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Fair point. I've always used the approach of dedicating a machine to one particular application (using virtual machines once those became available), so the impact of upgrading the a global JRE is limited.
I did once work on a system where we installed two JREs in parallel, and selected which one to use for the app based on an entry in the manifest file. That let us upgrade Java versions under application control, without requiring sysadmin intervention. Took a couple of lines of shell script.