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carmine-issue's Introduction

Info

Small project demonstrating a hanging issue with Carmine as of 2.19.0.

Behaviour

Java does not exit your program if you use carmine.

Demo

Run lein run and see the program hang.

Removing the carmine command in core.clj, or downgrading to 2.18.2 will make it work again.

Hypothesis

Something in the upgraded Apache Pool library is causing it to hang. (Introduced here: https://github.com/ptaoussanis/carmine/commit/b850ebb6b610de995d0885efbc067bfc18f0bae8)

Notes

  • So far tested on my local machine on Java 8, 9 and 10.
  • Have pin pointed it down to the connection pool. Using a :none pool makes it work again, as does downgrading commons-pool2.

carmine-issue's People

Watchers

James Cloos avatar

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