Major Description
If you crank up the s3guard directory inconsistency rate to stress test the directory listings, then the read failure rate can go up high enough that things read IO fails,.
Maybe that read injection should only happen for the first few seconds of a stream being created, to better model delayed consistency, or least limit the #of times it can surface in a stream. (This woluld imply some kind of stream-specific binding....)
Otherwise: provide a way to explicitly set it, including disable