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Posted to dev@hive.apache.org by "Tim Robertson (Commented) (JIRA)" <ji...@apache.org> on 2012/04/18 08:58:28 UTC
[jira] [Commented] (HIVE-2958) GROUP BY causing ClassCastException
[LazyDioInteger cannot be cast LazyInteger]
[ https://issues.apache.org/jira/browse/HIVE-2958?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13256250#comment-13256250 ]
Tim Robertson commented on HIVE-2958:
-------------------------------------
Thanks Navis for such a quick turnaround! I have applied the patch and confirm it works on our cluster (with HBase 0.90.4), but can't comment on the implications of the changes.
> GROUP BY causing ClassCastException [LazyDioInteger cannot be cast LazyInteger]
> -------------------------------------------------------------------------------
>
> Key: HIVE-2958
> URL: https://issues.apache.org/jira/browse/HIVE-2958
> Project: Hive
> Issue Type: Bug
> Components: HBase Handler
> Affects Versions: 0.9.0
> Environment: HBase 0.90.4, Hive 0.90 snapshot (trunk) built today
> Reporter: Tim Robertson
> Assignee: Navis
> Priority: Blocker
> Attachments: HIVE-2958.D2871.1.patch
>
>
> This relates to https://issues.apache.org/jira/browse/HIVE-1634.
> The following work fine:
> {code}
> CREATE EXTERNAL TABLE tim_hbase_occurrence (
> id int,
> scientific_name string,
> data_resource_id int
> ) STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' WITH SERDEPROPERTIES (
> "hbase.columns.mapping" = ":key#b,v:scientific_name#s,v:data_resource_id#b"
> ) TBLPROPERTIES(
> "hbase.table.name" = "mini_occurrences",
> "hbase.table.default.storage.type" = "binary"
> );
> SELECT * FROM tim_hbase_occurrence LIMIT 3;
> SELECT * FROM tim_hbase_occurrence WHERE data_resource_id=1081 LIMIT 3;
> {code}
> However, the following fails:
> {code}
> SELECT data_resource_id, count(*) FROM tim_hbase_occurrence GROUP BY data_resource_id;
> {code}
> The error given:
> {code}
> 0 TS
> 2012-04-17 16:58:45,693 INFO org.apache.hadoop.hive.ql.exec.MapOperator: Initialization Done 7 MAP
> 2012-04-17 16:58:45,714 INFO org.apache.hadoop.hive.ql.exec.MapOperator: Processing alias tim_hbase_occurrence for file hdfs://c1n2.gbif.org/user/hive/warehouse/tim_hbase_occurrence
> 2012-04-17 16:58:45,714 INFO org.apache.hadoop.hive.ql.exec.MapOperator: 7 forwarding 1 rows
> 2012-04-17 16:58:45,714 INFO org.apache.hadoop.hive.ql.exec.TableScanOperator: 0 forwarding 1 rows
> 2012-04-17 16:58:45,716 INFO org.apache.hadoop.hive.ql.exec.SelectOperator: 1 forwarding 1 rows
> 2012-04-17 16:58:45,723 FATAL ExecMapper: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row {"id":1444,"scientific_name":null,"data_resource_id":1081}
> at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:548)
> at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:143)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:391)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:325)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1157)
> at org.apache.hadoop.mapred.Child.main(Child.java:264)
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.ClassCastException: org.apache.hadoop.hive.serde2.lazydio.LazyDioInteger cannot be cast to org.apache.hadoop.hive.serde2.lazy.LazyInteger
> at org.apache.hadoop.hive.ql.exec.GroupByOperator.processOp(GroupByOperator.java:737)
> at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:471)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:762)
> at org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:84)
> at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:471)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:762)
> at org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:83)
> at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:471)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:762)
> at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:529)
> ... 9 more
> Caused by: java.lang.ClassCastException: org.apache.hadoop.hive.serde2.lazydio.LazyDioInteger cannot be cast to org.apache.hadoop.hive.serde2.lazy.LazyInteger
> at org.apache.hadoop.hive.serde2.lazy.objectinspector.primitive.LazyIntObjectInspector.copyObject(LazyIntObjectInspector.java:43)
> at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.copyToStandardObject(ObjectInspectorUtils.java:239)
> at org.apache.hadoop.hive.ql.exec.KeyWrapperFactory$ListKeyWrapper.deepCopyElements(KeyWrapperFactory.java:150)
> at org.apache.hadoop.hive.ql.exec.KeyWrapperFactory$ListKeyWrapper.deepCopyElements(KeyWrapperFactory.java:142)
> at org.apache.hadoop.hive.ql.exec.KeyWrapperFactory$ListKeyWrapper.copyKey(KeyWrapperFactory.java:119)
> at org.apache.hadoop.hive.ql.exec.GroupByOperator.processHashAggr(GroupByOperator.java:750)
> at org.apache.hadoop.hive.ql.exec.GroupByOperator.processOp(GroupByOperator.java:722)
> ... 18 more
> {code}
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