}
// dump for debugging
logFSTree(FSUtils.getRootDir(UTIL.getConfiguration()));
List<SnapshotDescription> taken = admin.listSnapshots();
int takenSize = taken.size();
LOG.info("Taken " + takenSize + " snapshots: " + taken);
assertTrue("We expect at least 1 request to be rejected because of we concurrently" +
" issued many requests", takenSize < ssNum && takenSize > 0);