dear friends: After kylin 2.3.1 upgrade to 2.4.1 ,some problem had happened. (we took the the version of kylin binary : apache-kylin-2.4.1-bin-hbase1x.tar.gz <http://www.apache.org/dyn/closer.cgi/kylin/apache-kylin-2.4.1/apache-kylin-2.4.1-bin-hbase1x.tar.gz> ) During the cube buiding flow,at the 3 step,error happend.
#3 Step Name: Extract Fact Table Distinct Columns error like below: Error: java.io.IOException: wrong value class: org.apache.hadoop.io.ArrayPrimitiveWritable is not class org.apache.hadoop.io.BytesWritable at org.apache.hadoop.io.SequenceFile$Writer.append(SequenceFile.java:1311) at org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat$1.write(SequenceFileOutputFormat.java:83) at org.apache.hadoop.mapreduce.lib.output.MultipleOutputs.write(MultipleOutputs.java:432) at org.apache.kylin.engine.mr.steps.FactDistinctColumnsReducer.outputDict(FactDistinctColumnsReducer.java:243) at org.apache.kylin.engine.mr.steps.FactDistinctColumnsReducer.doCleanup(FactDistinctColumnsReducer.java:217) at org.apache.kylin.engine.mr.KylinReducer.cleanup(KylinReducer.java:103) at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:179) at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:627) at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:389) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168) 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:1709) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
