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From "Sathish (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-7850) Hive Query failed if the data type is array<string> with parquet files
Date Fri, 22 Aug 2014 10:13:12 GMT

     [ https://issues.apache.org/jira/browse/HIVE-7850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sathish updated HIVE-7850:
--------------------------

    Fix Version/s: 0.14.0
           Status: Patch Available  (was: Open)

> Hive Query failed if the data type is array<string> with parquet files
> ----------------------------------------------------------------------
>
>                 Key: HIVE-7850
>                 URL: https://issues.apache.org/jira/browse/HIVE-7850
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>    Affects Versions: 0.13.1, 0.14.0
>            Reporter: Sathish
>              Labels: parquet, serde
>             Fix For: 0.14.0
>
>
> * Created a parquet file from the Avro file which have 1 array data type and rest are
primitive types. Avro Schema of the array data type. Eg: 
> {code}
> { "name" : "action", "type" : [ { "type" : "array", "items" : "string" }, "null" ] }
> {code}
> * Created External Hive table with the Array type as below, 
> {code}
> create external table paraArray (action Array) partitioned by (partitionid int) row format
serde 'parquet.hive.serde.ParquetHiveSerDe' stored as inputformat 'parquet.hive.MapredParquetInputFormat'
outputformat 'parquet.hive.MapredParquetOutputFormat' location '/testPara'; 
> alter table paraArray add partition(partitionid=1) location '/testPara';
> {code}
> * Run the following query(select action from paraArray limit 10) and the Map reduce jobs
are failing with the following exception.
> {code}
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
processing row [Error getting row data with exception java.lang.ClassCastException: parquet.hive.writable.BinaryWritable$DicBinaryWritable
cannot be cast to org.apache.hadoop.io.ArrayWritable
> at parquet.hive.serde.ParquetHiveArrayInspector.getList(ParquetHiveArrayInspector.java:125)
> at org.apache.hadoop.hive.serde2.SerDeUtils.buildJSONString(SerDeUtils.java:315)
> at org.apache.hadoop.hive.serde2.SerDeUtils.buildJSONString(SerDeUtils.java:371)
> at org.apache.hadoop.hive.serde2.SerDeUtils.getJSONString(SerDeUtils.java:236)
> at org.apache.hadoop.hive.serde2.SerDeUtils.getJSONString(SerDeUtils.java:222)
> at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:665)
> at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:144)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:405)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:336)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1126)
> at org.apache.hadoop.mapred.Child.main(Child.java:264)
> ]
> at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:671)
> at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:144)
> ... 8 more
> {code}
> This issue has long back posted on Parquet issues list and Since this is related to Parquet
Hive serde, I have created the Hive issue here, The details and history of this information
are as shown in the link here https://github.com/Parquet/parquet-mr/issues/281.



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