Testing:
Previously I needed ~20 iterations to get the test to fail on my local
machine. After these changes I haven't been able to reproduce the
failure
Change-Id: I2bea7b0f770dec362a6df075da4e340402bd1d5d
Reviewed-on: http://gerrit.cloudera.org:8080/8562
Reviewed-by: Jim Apple <jbapple-impala@apache.org>
Tested-by: Impala Public Jenkins