Navis created HIVE-5279:
---------------------------
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
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
