2016-12-05 14:46:54,248 [Etalons-Calculation-Thread-1] [5e125bfd-4e1f-47df-bf77-5da84ef0c741] [-]              WARN  c.u.m.b.s.data.etalon.EtalonRecordsComponent.upsertEtalons:617 - Upsert etalon period caught throwable!
java.lang.IllegalStateException: Duplicate key com.unidata.mdm.classifier.SimpleAttributeWithOptionalValueDef@208b14cb
    at java.util.stream.Collectors.lambda$throwingMerger$0(Collectors.java:133) ~[na:1.8.0_111]
    at java.util.HashMap.merge(HashMap.java:1253) ~[na:1.8.0_111]
    at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1320) ~[na:1.8.0_111]
    at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) ~[na:1.8.0_111]
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_111]
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374) ~[na:1.8.0_111]
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_111]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_111]
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[na:1.8.0_111]
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_111]
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[na:1.8.0_111]
    at com.unidata.mdm.backend.service.search.impl.AdminAgentComponent.buildClassifiers(AdminAgentComponent.java:586) ~[backend-r4.3.jar:r4.3.14306/2016-12-01 18:19:14]
    at com.unidata.mdm.backend.service.search.impl.AdminAgentComponent.buildObject(AdminAgentComponent.java:551) ~[backend-r4.3.jar:r4.3.14306/2016-12-01 18:19:14]
    at com.unidata.mdm.backend.service.search.impl.AdminAgentComponent.index(AdminAgentComponent.java:271) ~[backend-r4.3.jar:r4.3.14306/2016-12-01 18:19:14]
    at com.unidata.mdm.backend.service.search.SearchService.index(SearchService.java:302) ~[backend-r4.3.jar:r4.3.14306/2016-12-01 18:19:14]
    at com.unidata.mdm.backend.service.data.etalon.EtalonRecordsComponent.indexPeriods(EtalonRecordsComponent.java:429) ~[backend-r4.3.jar:r4.3.14306/2016-12-01 18:19:14]
    at com.unidata.mdm.backend.service.data.etalon.EtalonRecordsComponent.upsertEtalons(EtalonRecordsComponent.java:611) ~[backend-r4.3.jar:r4.3.14306/2016-12-01 18:19:14]
    at com.unidata.mdm.backend.service.data.etalon.EtalonRecordsComponent$$FastClassBySpringCGLIB$$cd1fa7f1.invoke(<generated>) [spring-core-4.1.8.RELEASE.jar:r4.3.14306/2016-12-01 18:19:14]
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) [spring-core-4.1.8.RELEASE.jar:4.1.8.RELEASE]
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:649) [spring-aop-4.1.8.RELEASE.jar:4.1.8.RELEASE]
    at com.unidata.mdm.backend.service.data.etalon.EtalonRecordsComponent$$EnhancerBySpringCGLIB$$59996611.upsertEtalons(<generated>) [spring-core-4.1.8.RELEASE.jar:r4.3.14306/2016-12-01 18:19:14]
    at com.unidata.mdm.backend.service.data.etalon.EtalonsUpsertRunnable.run(EtalonsUpsertRunnable.java:69) [backend-r4.3.jar:r4.3.14306/2016-12-01 18:19:14]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_111]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_111]