Multiple instance with multiple JVMs?

[Carl Emmoth]

Hello,

I've always wondered how the infrastructure works with Java App Engine. At multiple requests there can be several instances with a web server each. If there are too many instances for a single JVM, are new instances created on a different JVM? I wonder if this could affect static fields (singletons) which might not be shared between the instances.

Correct me if I'm wrong!

Thanks,

Carl 

[Stefano Ciccarelli]

Every instance *is* a different JVM! Don't even think to share data using static fields.

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[Carl Emmoth]

Thanks! Could you reference to documentation about this? I don't think I've seen it explicitly...

[Stefano Ciccarelli]

https://cloud.google.com/appengine/docs/standard/java/how-instances-are-managed

I think it's pretty clear.

Il giorno ven 3 ago 2018 alle ore 17:13 Carl Emmoth <carl....@gmail.com> ha scritto:

Thanks! Could you reference to documentation about this? I don't think I've seen it explicitly...

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