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https://issues.apache.org/jira/browse/HIVE-5199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13758269#comment-13758269
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Brock Noland commented on HIVE-5199:
------------------------------------
Hari,
Thanks for the contribution! On small suggestion, in this JIRA project we
discuss the Apache Hive project, not a distribution, therefore it's useful to
discuss a regression in 0.9., 0.10, or 0.11 which caused this.
> Read Only Custom SerDe works with HDP 1.1 but not with HDP 1.3
> --------------------------------------------------------------
>
> Key: HIVE-5199
> URL: https://issues.apache.org/jira/browse/HIVE-5199
> Project: Hive
> Issue Type: Bug
> Reporter: Hari Sankar Sivarama Subramaniyan
> Assignee: Hari Sankar Sivarama Subramaniyan
> Priority: Critical
> Attachments: HIVE-5199.patch.txt
>
>
> Custom serdes which used to work in HDP 1.1 is no longer working with HDP 1.3.
> The issue happens when the partition serde is not of settable type in HDP
> 1.3. The below exception happens via FetchOperator as well as MapOperator.
> Inside FetchOperator consider the following call:
> getRecordReader()->ObjectInspectorConverters. getConverter()
> The output object inspector is of settable type(because it is generated via
> ObjectInspectorConverters.getConvertedOI()) where as the input object
> inspector that gets passed as serde.getObjectorInspector() and is
> non-settable. Inside getConverter(), the (inputOI.equals(outputOI)) check
> fails and the switch statement tries to cast the non-settable object
> inspector to a settable object inspector.
> 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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