The test works by submitting a number of queries (parameterized) with
some delay between submissions (parameterized) and the ability to
submit to one impalad or many. The queries are set with the WAIT debug
action so that we have more control over the state that the admission
controller uses to make decisions. Each query is submitted on a
separate thread. Depending on the test parameters a varying number of
queries will be admitted, queued, and rejected. Once queries are
admitted, the query execution blocks and we can cancel the query in
order to allow another queued query to be admitted. The test tracks
the state of the admission controller using metric counters on each
impalad.
Change-Id: I455484a7f899032890b22c38592fcea1875f5399
Reviewed-on: http://gerrit.ent.cloudera.com:8080/1413
Reviewed-by: Ishaan Joshi <ishaan@cloudera.com>
Tested-by: jenkins
(cherry picked from commit bc2a74d6da622de877422f926ff1892bed867bb1)
Reviewed-on: http://gerrit.ent.cloudera.com:8080/1624
Reviewed-by: Matthew Jacobs <mj@cloudera.com>
Tested-by: Matthew Jacobs <mj@cloudera.com>
Test suites that derive from common.CustomClusterTestSuite have a brand
new cluster for every tests case, which they can configure as they wish
with custom arguments using the @with_args() decorator.
A future improvement is to optionally only have one cluster per test
suite, to allow multiple tests to run more quickly if they share
configuration options.
Change-Id: I6abd5740e644996d7ca2800edf4ff11b839d1bc4
Reviewed-on: http://gerrit.ent.cloudera.com:8080/882
Reviewed-by: Henry Robinson <henry@cloudera.com>
Tested-by: jenkins
