wangxiaobaidu11 commented on issue #7582: [for 0.12.x] general exactly count distinct support in Druid URL: https://github.com/apache/incubator-druid/pull/7582#issuecomment-545820054 @pzhdfy hi，I use https://github.com/pzhdfy/incubator-druid/tree/0.12.3-count-distinct code to run a task of hadoop index, but it occurs an error that lead to the failure of importing data source `2019-10-24 16:37:18.641 INFO [task-runner-0-priority-0] org.apache.hadoop.mapreduce.Job - Task Id : attempt_1570502169946_3012_m_000000_0, Status : FAILED Error: io.druid.java.util.common.RE: Failure on row[{"time":"2015-09-12T01:35:41.418Z","channel":"#es.wikipedia","cityName":"Asunción","comment":"/* Puntaje acumulado */","countryIsoCode":"PY","countryName":"Paraguay","isAnonymous":true,"isMinor":false,"isNew":false,"isRobot":false,"isUnpatrolled":false,"metroCode":null,"namespace":"Main","page":"Torneo Clausura 2015 (Paraguay)","regionIsoCode":"ASU","regionName":"Asuncion","user":"190.23.68.121","delta":1,"added":1,"deleted":0}] at io.druid.indexer.HadoopDruidIndexerMapper.map(HadoopDruidIndexerMapper.java:93) at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1698) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by: java.lang.IllegalArgumentException: Value : Asunción not exists at org.apache.kylin.common.util.Dictionary.getIdFromValue(Dictionary.java:107) at org.apache.kylin.common.util.Dictionary.getIdFromValue(Dictionary.java:85) at io.druid.segment.incremental.IncrementalIndex$1InputRowDictWrap.getDimension(IncrementalIndex.java:180) at io.druid.query.aggregation.unique.RoaringBitmapComplexMetricSerde$1.extractValue(RoaringBitmapComplexMetricSerde.java:70) at io.druid.query.aggregation.unique.RoaringBitmapComplexMetricSerde$1.extractValue(RoaringBitmapComplexMetricSerde.java:52) at io.druid.segment.incremental.IncrementalIndex$1IncrementalIndexInputRowColumnSelectorFactory$1.getObject(IncrementalIndex.java:264) at io.druid.query.aggregation.unique.UniqueBuildAggregator.aggregate(UniqueBuildAggregator.java:53) at io.druid.indexer.InputRowSerde.toBytes(InputRowSerde.java:281) at io.druid.indexer.IndexGeneratorJob$IndexGeneratorMapper.innerMap(IndexGeneratorJob.java:371) at io.druid.indexer.HadoopDruidIndexerMapper.map(HadoopDruidIndexerMapper.java:88) ... 8 more`
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