jihoonson opened a new issue #6801: NoSuchMethodError when running Hadoop index tasks URL: https://github.com/apache/incubator-druid/issues/6801 Here's the stack trace. ``` 2019-01-01T03:50:07,093 ERROR [main] org.apache.hadoop.mapred.YarnChild - Error running child : java.lang.NoSuchMethodError: com.google.common.base.Splitter.splitToList(Ljava/lang/CharSequence;)Ljava/util/List; at io.druid.java.util.common.parsers.DelimitedParser.parseLine(DelimitedParser.java:83) at io.druid.java.util.common.parsers.AbstractFlatTextFormatParser.parseToMap(AbstractFlatTextFormatParser.java:138) at io.druid.data.input.impl.StringInputRowParser.parseString(StringInputRowParser.java:155) at io.druid.data.input.impl.StringInputRowParser.parse(StringInputRowParser.java:148) at io.druid.indexer.HadoopyStringInputRowParser.parseBatch(HadoopyStringInputRowParser.java:50) at io.druid.segment.transform.TransformingInputRowParser.parseBatch(TransformingInputRowParser.java:50) at io.druid.indexer.HadoopDruidIndexerMapper.parseInputRow(HadoopDruidIndexerMapper.java:146) at io.druid.indexer.HadoopDruidIndexerMapper.map(HadoopDruidIndexerMapper.java:69) 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:170) 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:1866) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:164) ``` This error happens because `splitToList` doesn't exist in Guava 11.0.2 which is used by latest Hadoop versions (including 2.7, 2.8, 2.9, and 3.0)
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