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From "Hive QA (Jira)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21492) VectorizedParquetRecordReader can't to read parquet file generated using thrift/custom tool
Date Wed, 01 Apr 2020 02:51:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17072322#comment-17072322
] 

Hive QA commented on HIVE-21492:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12963424/HIVE-21492.patch

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 1 failed/errored test(s), 18163 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[topnkey_grouping_sets] (batchId=1)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/21362/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/21362/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-21362/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 1 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12963424 - PreCommit-HIVE-Build

> VectorizedParquetRecordReader can't to read parquet file generated using thrift/custom
tool
> -------------------------------------------------------------------------------------------
>
>                 Key: HIVE-21492
>                 URL: https://issues.apache.org/jira/browse/HIVE-21492
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Ganesha Shreedhara
>            Assignee: Ganesha Shreedhara
>            Priority: Major
>         Attachments: HIVE-21492.patch
>
>
> Taking an example of a parquet table having array of integers as below. 
> {code:java}
> CREATE EXTERNAL TABLE ( list_of_ints` array<int>)
> STORED AS PARQUET 
> LOCATION '{location}';
> {code}
> Parquet file generated using hive will have schema for Type as below:
> {code:java}
> group list_of_ints (LIST) { repeated group bag { optional int32 array;\n};\n} {code}
> Parquet file generated using thrift or any custom tool (using org.apache.parquet.io.api.RecordConsumer)
> may have schema for Type as below:
> {code:java}
> required group list_of_ints (LIST) { repeated int32 list_of_tuple} {code}
> VectorizedParquetRecordReader handles only parquet file generated using hive. It throws
the following exception when parquet file generated using thrift is read because of the changes
done as part of HIVE-18553 .
> {code:java}
> Caused by: java.lang.ClassCastException: repeated int32 list_of_ints_tuple is not a group
>  at org.apache.parquet.schema.Type.asGroupType(Type.java:207)
>  at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.getElementType(VectorizedParquetRecordReader.java:479)
>  at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.buildVectorizedParquetReader(VectorizedParquetRecordReader.java:532)
>  at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.checkEndOfRowGroup(VectorizedParquetRecordReader.java:440)
>  at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.nextBatch(VectorizedParquetRecordReader.java:401)
>  at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.next(VectorizedParquetRecordReader.java:353)
>  at org.apache.hadoop.hive.ql.io.parquet.vector.VectorizedParquetRecordReader.next(VectorizedParquetRecordReader.java:92)
>  at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:365){code}
>  
>  I have done a small change to handle the case where the child type of group type can
be PrimitiveType.



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