We were previously only clearing the cache in the catalog service
update loop so the impalad the drop was issued to was not doing the
right thing.
Change-Id: I6bee228e8c0d565cea4ea61cbf64240d83a45a7d
Reviewed-on: http://gerrit.ent.cloudera.com:8080/1511
Reviewed-by: Nong Li <nong@cloudera.com>
Tested-by: jenkins
