The Porcupine Spy v0.0.4 and Porcupine v0.0.4 Released

Version 0.0.4 of porcupine is available:


This version comes with minor bug fixes and improvements and a single major feature: the minQueueCapacity statistic. It is the "lowest watermark" of the queue capacity and an early indicator of thread pool overloading / upcoming rejections.

The new attribute is available from method Statistics#getMinQueueCapacity()

porcupine-spy was also released with the same version:


You can use the above dependency instead of the regular porcupine. The porcupine-spy extension injects automatically the statistics to the HTTP headers of all JAX-RS resources.

All requests are going to be extended with the x-porcupine-statistics-[THREADPOOL_NAME] HTTP header:

x-porcupine-statistics-light: {"pipelineName":"light","activeThreadCount":1,
Content-Type: text/plain
Date: Wed, 18 Mar 2015 07:50:20 GMT

Porcupine comes without any additional external dependencies and fully relies on Java EE 7 / Java 8 what makes it lean. Both JARs together are only 20kB.

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