Was wondering how many metrics and dimensions does druid support.
see I am getting this error :
java.lang.Exception: java.lang.ArrayIndexOutOfBoundsException: 81
Although I only picked 2 records in my file for batch ingestion, and partition size is 500000. Still . . .
Any specific reasons to this ? I see the map phase is completing, but what is it in the reduce phase of ingestion that it fails ?