[hadoop] branch branch-3.2 updated: YARN-10672. All testcases in TestReservations are flaky. Contributed by Szilard Nemeth.

[pbacsko]

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pbacsko pushed a commit to branch branch-3.2
in repository https://gitbox.apache.org/repos/asf/hadoop.git


The following commit(s) were added to refs/heads/branch-3.2 by this push:
     new 0b8bfc5  YARN-10672. All testcases in TestReservations are flaky. 
Contributed by Szilard Nemeth.
0b8bfc5 is described below

commit 0b8bfc50c6e759a5693c409cb760b6ad4b316f11
Author: Peter Bacsko <pbac...@cloudera.com>
AuthorDate: Mon Mar 8 14:32:13 2021 +0100

    YARN-10672. All testcases in TestReservations are flaky. Contributed by 
Szilard Nemeth.
---
 .../server/resourcemanager/scheduler/capacity/TestReservations.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java
 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java
index 625b1e7..53c2318 100644
--- 
a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java
+++ 
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestReservations.java
@@ -106,7 +106,6 @@ public class TestReservations {
     CapacityScheduler spyCs = new CapacityScheduler();
     cs = spy(spyCs);
     rmContext = TestUtils.getMockRMContext();
-
   }
 
   private void setup(CapacitySchedulerConfiguration csConf) throws Exception {
@@ -115,6 +114,9 @@ public class TestReservations {
 
   private void setup(CapacitySchedulerConfiguration csConf,
       boolean addUserLimits) throws Exception {
+    //All stub calls on the spy object of the 'cs' field should happen
+    //before cs.start() is invoked. See YARN-10672 for more details.
+    when(cs.getNumClusterNodes()).thenReturn(3);
 
     csConf.setBoolean(CapacitySchedulerConfiguration.ENABLE_USER_METRICS, 
true);
     final String newRoot = "root" + System.currentTimeMillis();
@@ -157,8 +159,6 @@ public class TestReservations {
     cs.setRMContext(spyRMContext);
     cs.init(csConf);
     cs.start();
-
-    when(cs.getNumClusterNodes()).thenReturn(3);
   }
 
   private static final String A = "a";


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