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YARN-10597. CSMappingPlacementRule should not create new instance of Groups. Contributed by Gergely Pollak

This commit is contained in:
Szilard Nemeth 2021-03-31 16:14:03 +02:00
parent ff6ec20d84
commit 6fd0c661b6
1 changed files with 1 additions and 5 deletions
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6
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/placement/CSMappingPlacementRule.java
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@ -132,11 +132,7 @@ public class CSMappingPlacementRule extends PlacementRule {
overrideWithQueueMappings = conf.getOverrideWithQueueMappings();
if (groups == null) {
//We cannot use Groups#getUserToGroupsMappingService here, because when
//tests change the HADOOP_SECURITY_GROUP_MAPPING, Groups won't refresh its
//cached instance of groups, so we might get a Group instance which
//ignores the HADOOP_SECURITY_GROUP_MAPPING settings.
groups = new Groups(conf);
groups = Groups.getUserToGroupsMappingService(conf);
}
MappingRuleValidationContext validationContext = buildValidationContext();