YARN-11128. Fix comments in TestProportionalCapacityPreemptionPolicy* (#4271)

Co-authored-by: Ashutosh Gupta <ashugpt@amazon.com>
Reviewed-by: Hemanth Boyina <hemanthboyina@apache.org>
Signed-off-by: Akira Ajisaka <aajisaka@apache.org>
(cherry picked from commit e3e9369c1d7c3045f910a7c320970b643a73c862)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/capacity/TestProportionalCapacityPreemptionPolicyInterQueueWithDRF.java

@@ -18,6 +18,11 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity;
 
+import java.io.IOException;
+
+import org.junit.Before;
+import org.junit.Test;
+
 import org.apache.hadoop.yarn.api.protocolrecords.ResourceTypes;
 import org.apache.hadoop.yarn.api.records.Resource;
 import org.apache.hadoop.yarn.api.records.ResourceInformation;
@@ -26,10 +31,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.Capacity
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue;
 import org.apache.hadoop.yarn.util.resource.DominantResourceCalculator;
 import org.apache.hadoop.yarn.util.resource.ResourceUtils;
-import org.junit.Before;
-import org.junit.Test;
-
-import java.io.IOException;
 
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.argThat;
@@ -210,7 +211,7 @@ public class TestProportionalCapacityPreemptionPolicyInterQueueWithDRF
             "-b(=[20480:200 61440:600 0:0 20480:20 0]);" + // a
             "-c(=[20480:200 61440:600 0:0 0:0 0])"; // c
     String appsConfig =
-        //queueName\t(priority,resource,host,expression,#repeat,reserved)
+        // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" + "(1,1024:1,n1,,60,false,0:0,user1);" + // app1 in a
         "b\t" + "(1,0:0,n1,,0,false,20480:20,user2);"; // app2 in b
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/capacity/TestProportionalCapacityPreemptionPolicyIntraQueue.java

@@ -18,13 +18,14 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity;
 
-import org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.TestProportionalCapacityPreemptionPolicy.IsPreemptionRequestFor;
-import org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.mockframework.ProportionalCapacityPreemptionPolicyMockFramework;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
+import java.io.IOException;
+
 import org.junit.Before;
 import org.junit.Test;
 
-import java.io.IOException;
+import org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.TestProportionalCapacityPreemptionPolicy.IsPreemptionRequestFor;
+import org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.mockframework.ProportionalCapacityPreemptionPolicyMockFramework;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
 
 import static org.mockito.ArgumentMatchers.argThat;
 import static org.mockito.Mockito.never;
@@ -845,7 +846,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueue
             "-b(=[40 100 40 120 0])"; // b
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user(optional))
         "a\t" // app1 in a
             + "(1,1,n1,,5,false,25);" + // app1 a
             "a\t" // app2 in a

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/capacity/TestProportionalCapacityPreemptionPolicyIntraQueueFairOrdering.java

@@ -74,7 +74,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueFairOrdering
     // With FairOrderingPolicy enabled on queue a, all 20 resources should be
     // preempted from app1
     String appsConfig =
-    // queueName\t(prio,resource,host,expression,#repeat,reserved,pending,user)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1, user1 in a
             + "(1,1,n1,,60,false,0,user1);" +
             "a\t" // app2, user2 in a
@@ -122,7 +122,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueFairOrdering
     // With FifoOrderingPolicy enabled on queue a, the first 5 should come from
     // the youngest app, app2, until app2 is reduced to the user limit of 35.
     String appsConfig =
-    // queueName\t(prio,resource,host,expression,#repeat,reserved,pending,user)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1, user1 in a
             + "(1,1,n1,,60,false,0,user1);" +
             "a\t" // app2, user2 in a
@@ -145,7 +145,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueFairOrdering
     // The next 15 should come from app1 even though app2 is younger since app2
     // has already been reduced to its user limit.
     appsConfig =
-    // queueName\t(prio,resource,host,expression,#repeat,reserved,pending,user)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1, user1 in a
             + "(1,1,n1,,60,false,0,user1);" +
             "a\t" // app2, user2 in a
@@ -195,7 +195,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueFairOrdering
     // preempted from app1 since it's the most over served app from the most
     // over served user
     String appsConfig =
-    // queueName\t(prio,resource,host,expression,#repeat,reserved,pending,user)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 and app2, user1 in a
             + "(1,1,n1,,35,false,0,user1);" +
             "a\t"
@@ -243,7 +243,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueFairOrdering
     // user4/app4 is requesting 20 resources in queue a
     // With 3 users, preemptable user limit should be around 35 resources each.
     String appsConfig =
-    // queueName\t(prio,resource,host,expression,#repeat,reserved,pending,user)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1, user1 in a
             + "(1,1,n1,,40,false,0,user1);" +
         "a\t" // app2, user1 in a

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/monitor/capacity/TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit.java

@@ -18,12 +18,13 @@
 
 package org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity;
 
-import org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.mockframework.ProportionalCapacityPreemptionPolicyMockFramework;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
+import java.io.IOException;
+
 import org.junit.Before;
 import org.junit.Test;
 
-import java.io.IOException;
+import org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.mockframework.ProportionalCapacityPreemptionPolicyMockFramework;
+import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerConfiguration;
 
 import static org.mockito.ArgumentMatchers.argThat;
 import static org.mockito.Mockito.times;
@@ -84,7 +85,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 100 30 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,1,n1,,100,false,0,user1);" + // app1 a
             "a\t" // app2 in a
@@ -139,7 +140,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 100 30 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,1,n1,,100,false,0,user1);" + // app1 a
             "a\t" // app2 in a
@@ -196,7 +197,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 80 30 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,1,n1,,50,false,0,user1);" + // app1 a
             "a\t" // app2 in a
@@ -252,7 +253,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 100 30 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(2,1,n1,,100,false,0,user1);" + // app1 a
             "a\t" // app2 in a
@@ -309,7 +310,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 80 90 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,1,n1,,30,false,30,user1);" + // app1 a
             "a\t" // app2 in a
@@ -370,7 +371,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 80 90 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,1,n1,,30,false,20,user1);" + // app1 a
             "a\t" // app2 in a
@@ -439,7 +440,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 80 60 0])"; // b
 
     String appsConfig =
-        // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(3,1,n1,,30,false,30,user1);" + // app1 a
             "a\t" // app2 in a
@@ -490,7 +491,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-b(=[40 100 35 20 0])"; // b
 
     String appsConfig =
-        // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(3,1,n1,,20,false,30,user1);" + // app1 a
             "a\t" // app2 in a
@@ -556,7 +557,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 100 20 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,1,n1,,60,false,10,user1);" + // app1 a
             "a\t" // app2 in a
@@ -795,7 +796,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 100 20 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,3,n1,,20,false,10,user1);" + // app1 a
             "a\t" // app2 in a
@@ -855,7 +856,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 100 20 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,3,n1,,20,false,10,user1);" + // app1 a
             "a\t" // app2 in a
@@ -879,7 +880,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
     // After first round, 3 containers were preempted from app1 and resource
     // distribution will be like below.
     appsConfig =
-        // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,3,n1,,17,false,10,user1);" + // app1 a
             "a\t" // app2 in a
@@ -914,7 +915,7 @@ public class TestProportionalCapacityPreemptionPolicyIntraQueueUserLimit
             "-a(=[100 100 100 1 0])"; // a
 
     String appsConfig =
-    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending)
+    // queueName\t(priority,resource,host,expression,#repeat,reserved,pending,user)
         "a\t" // app1 in a
             + "(1,1,n1,,65,false,0,user1);" +
             "a\t" // app2 in a