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https://issues.apache.org/jira/browse/YARN-4363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15610897#comment-15610897
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Hudson commented on YARN-4363:
------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10695 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/10695/])
YARN-4363. In TestFairScheduler, testcase should not create (rohithsharmaks:
rev e29cba61a0bec0629de287f67ae6eed526295ffb)
* (edit)
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestFairScheduler.java
> 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
> Assignee: Tao Jie
> Priority: Trivial
> Fix For: 2.9.0, 3.0.0-alpha2
>
> Attachments: YARN-4363.0002.patch, YARN-4363.001.patch
>
>
> 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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