Tao Jie created YARN-4363:
-----------------------------
Summary: In TestFairScheduler, testcase should not create
FairScheduler redundantly
Key: YARN-4363
URL: https://issues.apache.org/jira/browse/YARN-4363
Project: Hadoop YARN
Issue Type: Test
Components: fairscheduler
Affects Versions: 2.6.0
Reporter: Tao Jie
Priority: Trivial
I am trying to make some improvement on fairscheduler, but get some test
failure on TestFairScheduler, due to redundant FairScheduler creation:
In TestFairScheduler, FairScheduler and RM is created, then set RMContext of RM
to scheduler.
{code}
@Before
public void setUp() throws IOException {
scheduler = new FairScheduler();
conf = createConfiguration();
resourceManager = new MockRM(conf);
scheduler.setRMContext(resourceManager.getRMContext());
}
{code}
However in several case, scheduler is renewed, as a result RMcontext in
scheduler is null.
{code}
@Test
public void testMinZeroResourcesSettings() throws IOException {
scheduler = new FairScheduler();
YarnConfiguration conf = new YarnConfiguration();
...
scheduler.init(conf);
{code}
Then do scheduler.init(conf), I get a NPE(I try to get something from RMContext
in scheduler initialization).
So FairScheduler should not be renewed in test block.
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