YARN-10053. Use Shared Group Mapping Service in Placement Rules. Contributed by Wilfred Spiegelenburg.

(cherry Picked from commit 217b56ffdd5fa254f06734bc8cb6f04a02066f1a)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/UserGroupMappingPlacementRule.java

@@ -313,9 +313,9 @@ public class UserGroupMappingPlacementRule extends PlacementRule {
 
     // initialize groups if mappings are present
     if (newMappings.size() > 0) {
-      Groups groups = new Groups(conf);
       this.mappings = newMappings;
-      this.groups = groups;
+      this.groups = Groups.getUserToGroupsMappingService(
+          ((CapacityScheduler)scheduler).getConfig());
       this.overrideWithQueueMappings = overrideWithQueueMappings;
       return true;
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/QueuePlacementPolicy.java

@@ -72,7 +72,7 @@ public class QueuePlacementPolicy {
     }
     this.rules = rules;
     this.configuredQueues = configuredQueues;
-    groups = new Groups(conf);
+    this.groups = Groups.getUserToGroupsMappingService(conf);
   }
   
   /**

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacityScheduler.java

@@ -49,6 +49,7 @@ import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.net.NetworkTopology;
 import org.apache.hadoop.security.Credentials;
+import org.apache.hadoop.security.Groups;
 import org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
 import org.apache.hadoop.security.TestGroupsCaching;
 import org.apache.hadoop.security.UserGroupInformation;
@@ -4855,6 +4856,7 @@ public class TestCapacityScheduler extends CapacitySchedulerTestBase {
         "a1" +"=" + "agroup" + "");
     config.set(CapacitySchedulerConfiguration.QUEUE_MAPPING,
         "g:agroup:%user");
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(config);
 
     MockRM rm = new MockRM(config);
     rm.start();

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacitySchedulerAutoCreatedQueueBase.java

@@ -23,7 +23,7 @@ import org.apache.commons.lang3.RandomUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.apache.hadoop.fs.CommonConfigurationKeys;
-import org.apache.hadoop.security.GroupMappingServiceProvider;
+import org.apache.hadoop.security.Groups;
 import org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
 import org.apache.hadoop.security.TestGroupsCaching;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
@@ -63,8 +63,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event
     .AppAttemptAddedSchedulerEvent;
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.event
     .SchedulerEvent;
-import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair
-    .SimpleGroupsMapping;
 import org.apache.hadoop.yarn.server.utils.BuilderUtils;
 import org.apache.hadoop.yarn.util.Records;
 import org.apache.hadoop.yarn.util.YarnVersionInfo;
@@ -296,6 +294,7 @@ public class TestCapacitySchedulerAutoCreatedQueueBase {
         TestGroupsCaching.FakeunPrivilegedGroupMapping.class, ShellBasedUnixGroupsMapping.class);
     conf.set(CommonConfigurationKeys.HADOOP_USER_GROUP_STATIC_OVERRIDES,
         TEST_GROUPUSER +"=" + TEST_GROUP + ";invalid_user=invalid_group");
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(conf);
 
     UserGroupMappingPlacementRule.QueueMapping userQueueMapping =
         new UserGroupMappingPlacementRule.QueueMapping(

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

@@ -54,6 +54,8 @@ import org.apache.hadoop.metrics2.impl.MetricsCollectorImpl;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.net.NetworkTopology;
 import org.apache.hadoop.security.GroupMappingServiceProvider;
+import org.apache.hadoop.security.Groups;
+import org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback;
 import org.apache.hadoop.yarn.MockApps;
 import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
 import org.apache.hadoop.yarn.api.records.ApplicationId;
@@ -1916,6 +1918,7 @@ public class TestFairScheduler extends FairSchedulerTestBase {
   public void testQueuePlacementWithPolicy() throws Exception {
     conf.setClass(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
         SimpleGroupsMapping.class, GroupMappingServiceProvider.class);
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(conf);
     scheduler.init(conf);
     scheduler.start();
     scheduler.reinitialize(conf, resourceManager.getRMContext());
@@ -1961,6 +1964,12 @@ public class TestFairScheduler extends FairSchedulerTestBase {
     assertEquals("root.somequeue", scheduler.getSchedulerApp(appId).getQueueName());
     appId = createSchedulingRequest(1024, "default", "otheruser");
     assertEquals("root.default", scheduler.getSchedulerApp(appId).getQueueName());
+
+    // undo the group change
+    conf.setClass(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
+        JniBasedUnixGroupsMappingWithFallback.class,
+        GroupMappingServiceProvider.class);
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(conf);
   }
 
   @Test
@@ -2013,6 +2022,7 @@ public class TestFairScheduler extends FairSchedulerTestBase {
     conf.set(FairSchedulerConfiguration.ALLOCATION_FILE, ALLOC_FILE);
     conf.setClass(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
         SimpleGroupsMapping.class, GroupMappingServiceProvider.class);
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(conf);
     PrintWriter out = new PrintWriter(new FileWriter(ALLOC_FILE));
     out.println("<?xml version=\"1.0\"?>");
     out.println("<allocations>");
@@ -2038,6 +2048,11 @@ public class TestFairScheduler extends FairSchedulerTestBase {
         "user1");
 
     assertEquals("root.user1group.user1", user1Leaf.getName());
+    // undo the group change
+    conf.setClass(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
+        JniBasedUnixGroupsMappingWithFallback.class,
+        GroupMappingServiceProvider.class);
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(conf);
   }
 
   @Test

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fair/TestQueuePlacementPolicy.java

@@ -20,10 +20,8 @@ package org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair;
 import static org.junit.Assert.*;
 
 import java.io.IOException;
-import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
-import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
@@ -34,6 +32,7 @@ import org.apache.commons.io.IOUtils;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.fs.CommonConfigurationKeys;
 import org.apache.hadoop.security.GroupMappingServiceProvider;
+import org.apache.hadoop.security.Groups;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Test;
@@ -389,8 +388,10 @@ public class TestQueuePlacementPolicy {
     sb.append("  <rule name='default' />");
     sb.append("</queuePlacementPolicy>");
 
+    // change the group resolution
     conf.setClass(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
         PeriodGroupsMapping.class, GroupMappingServiceProvider.class);
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(conf);
     // User queue would be created under primary group queue, and the period
     // in the group name should be converted into _dot_
     QueuePlacementPolicy policy = parse(sb.toString());
@@ -399,6 +400,7 @@ public class TestQueuePlacementPolicy {
 
     conf.setClass(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
         SimpleGroupsMapping.class, GroupMappingServiceProvider.class);
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(conf);
   }
 
   @Test(expected=IOException.class)
@@ -412,6 +414,7 @@ public class TestQueuePlacementPolicy {
     // Add a static mapping that returns empty groups for users
     conf.setStrings(CommonConfigurationKeys
         .HADOOP_USER_GROUP_STATIC_OVERRIDES, "emptygroupuser=");
+    Groups.getUserToGroupsMappingServiceWithLoadedConfiguration(conf);
     QueuePlacementPolicy policy = parse(sb.toString());
     policy.assignAppToQueue(null, "emptygroupuser");
   }