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https://issues.apache.org/jira/browse/HIVE-5199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13763112#comment-13763112
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Ashutosh Chauhan commented on HIVE-5199:
----------------------------------------
Fixed via HIVE-5249
> Custom SerDe containing a nonSettable complex data type row object inspector
> throws cast exception with HIVE 0.11
> -----------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-5199
> URL: https://issues.apache.org/jira/browse/HIVE-5199
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.11.0
> Reporter: Hari Sankar Sivarama Subramaniyan
> Assignee: Hari Sankar Sivarama Subramaniyan
> Priority: Critical
> Fix For: 0.13.0
>
> Attachments: HIVE-5199.2.patch.txt, HIVE-5199.3.patch.txt,
> HIVE-5199.patch.4.txt, HIVE-5199.patch.txt
>
>
> The issue happens because of the changes in HIVE-3833.
> Consider a partitioned table with different custom serdes for the partition
> and tables. The serde at table level, say, customSerDe1's object inspector is
> of settableDataType where as the serde at partition level, say,
> customSerDe2's object inspector is of nonSettableDataType. The current
> implementation introduced by HIVE-3833 does not convert nested Complex Data
> Types which extend nonSettableObjectInspector to a settableObjectInspector
> type inside ObjectInspectorConverters.getConvertedOI(). However, it tries to
> typecast the nonSettableObjectInspector to a settableObjectInspector inside
> ObjectInspectorConverters.getConverter(ObjectInspector inputOI,
> ObjectInspector outputOI).
> The attached patch HIVE-5199.2.patch.txt contains a stand-alone test case.
> The below exception can happen via FetchOperator as well as MapOperator.
> For example, consider the FetchOperator.
> Inside FetchOperator consider the following call:
> getRecordReader()->ObjectInspectorConverters. getConverter()
> The stack trace as follows:
> 2013-08-28 17:57:25,307 ERROR CliDriver (SessionState.java:printError(432)) -
> Failed with exception java.io.IOException:java.lang.ClassCastException:
> com.skype.data.whaleshark.hadoop.hive.proto.ProtoMapObjectInspector cannot be
> cast to
> org.apache.hadoop.hive.serde2.objectinspector.SettableMapObjectInspector
> java.io.IOException: java.lang.ClassCastException:
> com.skype.data.whaleshark.hadoop.hive.proto.ProtoMapObjectInspector cannot be
> cast to
> org.apache.hadoop.hive.serde2.objectinspector.SettableMapObjectInspector
> at
> org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:544)
> at
> org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:488)
> at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:136)
> at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:1412)
> at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:271)
> at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:216)
> at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:413)
> at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:756)
> at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:614)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:160)
> Caused by: java.lang.ClassCastException:
> com.skype.data.whaleshark.hadoop.hive.proto.ProtoMapObjectInspector cannot be
> cast to
> org.apache.hadoop.hive.serde2.objectinspector.SettableMapObjectInspector
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters.getConverter(ObjectInspectorConverters.java:144)
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters$StructConverter.<init>(ObjectInspectorConverters.java:307)
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorConverters.getConverter(ObjectInspectorConverters.java:138)
> at
> org.apache.hadoop.hive.ql.exec.FetchOperator.getRecordReader(FetchOperator.java:406)
> at
> org.apache.hadoop.hive.ql.exec.FetchOperator.getNextRow(FetchOperator.java:508)
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