assertThat(searchResponse.getHits().getTotalHits(), equalTo(1l));
super.deleteRiver();
Thread.sleep(wait);
Status status = MongoDBRiverHelper.getRiverStatus(getNode().client(), getRiver());
Assert.assertTrue(status == Status.UNKNOWN);
} catch (Throwable t) {
logger.error("simpleRiver failed.", t);
t.printStackTrace();
throw t;