[jira] [Created] (HIVE-5279) Kryo cannot instantiate GenericUDAFEvaluator in GroupByDesc

["Navis (JIRA)" <ji...@apache.org>]

Navis created HIVE-5279:
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             Summary: Kryo cannot instantiate GenericUDAFEvaluator in GroupByDesc
                 Key: HIVE-5279
                 URL: https://issues.apache.org/jira/browse/HIVE-5279
             Project: Hive
          Issue Type: Bug
          Components: Query Processor
            Reporter: Navis
            Priority: Critical


We didn't forced GenericUDAFEvaluator to be Serializable. I don't know how previous serialization mechanism solved this but, kryo complaints that it's not Serializable and fails the query.

The log below is the example, 
{noformat}
java.lang.RuntimeException: com.esotericsoftware.kryo.KryoException: Class cannot be created (missing no-arg constructor): org.apache.hadoop.hive.serde2.objectinspector.StandardListObjectInspector
Serialization trace:
inputOI (org.apache.hadoop.hive.ql.udf.generic.GenericUDAFGroupOn$VersionedFloatGroupOnEval)
genericUDAFEvaluator (org.apache.hadoop.hive.ql.plan.AggregationDesc)
aggregators (org.apache.hadoop.hive.ql.plan.GroupByDesc)
conf (org.apache.hadoop.hive.ql.exec.GroupByOperator)
childOperators (org.apache.hadoop.hive.ql.exec.SelectOperator)
childOperators (org.apache.hadoop.hive.ql.exec.TableScanOperator)
aliasToWork (org.apache.hadoop.hive.ql.plan.MapWork)
	at org.apache.hadoop.hive.ql.exec.Utilities.getBaseWork(Utilities.java:312)
	at org.apache.hadoop.hive.ql.exec.Utilities.getMapWork(Utilities.java:261)
	at org.apache.hadoop.hive.ql.io.HiveInputFormat.init(HiveInputFormat.java:256)
	at org.apache.hadoop.hive.ql.io.HiveInputFormat.pushProjectionsAndFilters(HiveInputFormat.java:383)
	at org.apache.h
{noformat}

If this cannot be fixed in somehow, some UDAFs should be modified to be run on hive-0.13.0

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