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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7049) Unable to deserialize AVRO data when file schema and record schema are different and nullable
Date Tue, 31 Mar 2015 05:48:56 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14388063#comment-14388063
] 

Hive QA commented on HIVE-7049:
-------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12708290/HIVE-7049.2.patch

{color:red}ERROR:{color} -1 due to 3 failed/errored test(s), 8693 tests executed
*Failed tests:*
{noformat}
TestMinimrCliDriver-smb_mapjoin_8.q - did not produce a TEST-*.xml file
org.apache.hadoop.hive.metastore.txn.TestCompactionTxnHandler.testRevokeTimedOutWorkers
org.apache.hive.hcatalog.streaming.TestStreaming.testMultipleTransactionBatchCommits
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/3213/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/3213/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-3213/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 3 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12708290 - PreCommit-HIVE-TRUNK-Build

> Unable to deserialize AVRO data when file schema and record schema are different and
nullable
> ---------------------------------------------------------------------------------------------
>
>                 Key: HIVE-7049
>                 URL: https://issues.apache.org/jira/browse/HIVE-7049
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Mohammad Kamrul Islam
>            Assignee: Mohammad Kamrul Islam
>         Attachments: HIVE-7049.1.patch, HIVE-7049.2.patch, Statistic, Statistics10Min.avsc
>
>
> It mainly happens when 
> 1 )file schema and record schema are not same
> 2 ) Record schema is nullable  but file schema is not.
> The potential code location is at class AvroDeserialize
>  
> {noformat}
>  if(AvroSerdeUtils.isNullableType(recordSchema)) {
>       return deserializeNullableUnion(datum, fileSchema, recordSchema, columnType);
>     }
> {noformat}
> In the above code snippet, recordSchema is verified if it is nullable. But the file schema
is not checked.
> I tested with these values:
> {noformat}
> recordSchema= ["null","string"]
> fielSchema= "string"
> {noformat}
> And i got the following exception <line numbers might not be the same due to mu debugged
code version>.
> {noformat}
> org.apache.avro.AvroRuntimeException: Not a union: "string" 
>         at org.apache.avro.Schema.getTypes(Schema.java:272)
>         at org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserializeNullableUnion(AvroDeserializer.java:275)
>         at org.apache.hadoop.hive.serde2.avro.AvroDeserializer.worker(AvroDeserializer.java:205)
>         at org.apache.hadoop.hive.serde2.avro.AvroDeserializer.workerBase(AvroDeserializer.java:188)
>         at org.apache.hadoop.hive.serde2.avro.AvroDeserializer.deserialize(AvroDeserializer.java:174)
>         at org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.verifyNullableType(TestAvroDeserializer.java:487)
>         at org.apache.hadoop.hive.serde2.avro.TestAvroDeserializer.canDeserializeNullableTypes(TestAvroDeserializer.java:407)
> {noformat}



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