I should say this is during the last reduction step that occures in
this query
Josh
On Dec 10, 2008, at 1:06 AM, Josh Ferguson wrote:
This Query
INSERT OVERWRITE TABLE aggregations PARTITION ( account='80c27664-
b047-4c0a-86f3-342c0cdf36c7', application='myproduct',
dataset='purchase', hour=341165, aggregation='count',
aggregated_by='all' ) SELECT COUNT(actor_id) AS value FROM
activities WHERE ( account='80c27664-b047-4c0a-86f3-342c0cdf36c7'
AND application='myproduct' AND dataset='purchase' AND hour=341165 )
Generates this message
java.lang.RuntimeException: Error while closing operators:
org.apache.hadoop.hive.ql.metadata.HiveException:
org.apache.hadoop.hive.serde2.SerDeException:
org.apache.hadoop.hive.serde2.SerDeException: Trying to serialize 0
fields into a struct with 1
at
org.apache.hadoop.hive.ql.exec.ExecReducer.close(ExecReducer.java:202)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:440)
at org.apache.hadoop.mapred.Child.main(Child.java:155)
Josh Ferguson
