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Namit Jain commented on HIVE-1830: ---------------------------------- if (groupByOp.getConf() == null) { 91 System.out.println("Group by desc is null"); 92 return null; 93 } This should never happen GroupByOperator: memoryThreshold = HiveConf.getFloatVar(hconf, HiveConf.ConfVars.HIVEMAPAGGRM⬅ EMORYTHRESHOLD); This should also be in groupByDesc > mappers in group followed by joins may die OOM > ---------------------------------------------- > > Key: HIVE-1830 > URL: https://issues.apache.org/jira/browse/HIVE-1830 > Project: Hive > Issue Type: Bug > Reporter: Namit Jain > Assignee: Liyin Tang > Attachments: hive-1830-1.patch, hive-1830-2.patch, hive-1830-3.patch, > hive-1830-4.patch > > -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.