We weren't waiting for export dir to complete (the asok
just starts the process). This wasn't noticeable when running
remotely due to latency between the test runner and the MDS,
but it shows up when running against a local vstart cluster.
Signed-off-by: John Spray <john.spray@redhat.com>
This tests the new purge file/ops throttling
in the MDS, via the new perf counters for
strays/purging.
Fixes: #10390
Signed-off-by: John Spray <john.spray@redhat.com>
