YARN-10597. CSMappingPlacementRule should not create new instance of Groups. Contributed by Gergely Pollak
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@ -132,11 +132,7 @@ public boolean initialize(ResourceScheduler scheduler) throws IOException {
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overrideWithQueueMappings = conf.getOverrideWithQueueMappings();
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if (groups == null) {
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//We cannot use Groups#getUserToGroupsMappingService here, because when
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//tests change the HADOOP_SECURITY_GROUP_MAPPING, Groups won't refresh its
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//cached instance of groups, so we might get a Group instance which
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//ignores the HADOOP_SECURITY_GROUP_MAPPING settings.
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groups = new Groups(conf);
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groups = Groups.getUserToGroupsMappingService(conf);
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}
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MappingRuleValidationContext validationContext = buildValidationContext();
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