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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9605) Remove parquet nested objects from wrapper writable objects
Date Tue, 10 Feb 2015 03:01:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14313436#comment-14313436
] 

Hive QA commented on HIVE-9605:
-------------------------------



{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/12697518/HIVE-9605.2.patch

{color:red}ERROR:{color} -1 due to 14 failed/errored test(s), 7540 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testAmbiguousSingleFieldGroupInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testAvroPrimitiveInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testAvroSingleFieldGroupInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testHiveRequiredGroupInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testMultiFieldGroupInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testNewOptionalGroupInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testNewRequiredGroupInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testThriftPrimitiveInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testThriftSingleFieldGroupInList
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testUnannotatedListOfGroups
org.apache.hadoop.hive.ql.io.parquet.TestArrayCompatibility.testUnannotatedListOfPrimitives
org.apache.hadoop.hive.ql.io.parquet.TestParquetSerDe.testParquetHiveSerDe
org.apache.hadoop.hive.ql.io.parquet.serde.TestAbstractParquetMapInspector.testEmptyContainer
org.apache.hadoop.hive.ql.io.parquet.serde.TestParquetHiveArrayInspector.testEmptyContainer
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/2729/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/2729/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-2729/

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: 14 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12697518 - PreCommit-HIVE-TRUNK-Build

> Remove parquet nested objects from wrapper writable objects
> -----------------------------------------------------------
>
>                 Key: HIVE-9605
>                 URL: https://issues.apache.org/jira/browse/HIVE-9605
>             Project: Hive
>          Issue Type: Sub-task
>    Affects Versions: 0.14.0
>            Reporter: Sergio Peña
>            Assignee: Sergio Peña
>         Attachments: HIVE-9605.2.patch
>
>
> Parquet nested types are using an extra wrapper object (ArrayWritable) as a wrapper of
map and list elements. This extra object is not needed and causing unnecessary memory allocations.
> An example of code is on HiveCollectionConverter.java:
> {noformat}
> public void end() {
>     parent.set(index, wrapList(new ArrayWritable(
>         Writable.class, list.toArray(new Writable[list.size()]))));
> }
> {noformat}
> This object is later unwrapped on AbstractParquetMapInspector, i.e.:
> {noformat}
> final Writable[] mapContainer = ((ArrayWritable) data).get();
> final Writable[] mapArray = ((ArrayWritable) mapContainer[0]).get();
> for (final Writable obj : mapArray) {
>   ...
> }
> {noformat}
> We should get rid of this wrapper object to save time and memory.



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