“too many open files”

[AlexDaniel]

This happened a couple of times with committable (after running for a couple of days):

Unhandled exception in code scheduled on thread 22
Unhandled exception in code scheduled on thread 29
too many open files

too many open files

[zoffixznet]

Note that Proc, Proc::Async, and IO::Path.dir are some of the non-obvious places where you could be exhausting the open file limit.

[AlexDaniel]

To add a test for this we probably want to have another test in the end set. The test could just look at the process with lsof or something, and test that this number is less than some amount.