server CPU cores max out after about a dozen hours. The server has a light load (5 requests per seconds). There is plenty of memory available.

When doing a jstack, 2 of the executor threads never change, many other executor threads are added and removed as expected but these 2 RUNNABLE threads seem to be blocked in an infinite loop in AbstractInputBuffer.nextRequest(AbstractInputBuffer.java:298)

http://svn.apache.org/viewvc?view=revision&revision=1655135
https://bz.apache.org/bugzilla/show_bug.cgi?id=57544