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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-7685) Parquet memory manager
Date Tue, 09 Dec 2014 12:57:13 GMT


Hive QA commented on HIVE-7685:

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

Here are the results of testing the latest attachment:

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 6699 tests executed
*Failed tests:*

Test results:
Console output:
Test logs:

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: 2 tests failed

This message is automatically generated.

ATTACHMENT ID: 12685972 - PreCommit-HIVE-TRUNK-Build

> Parquet memory manager
> ----------------------
>                 Key: HIVE-7685
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Serializers/Deserializers
>            Reporter: Brock Noland
>            Assignee: Dong Chen
>         Attachments: HIVE-7685.1.patch.ready, HIVE-7685.patch, HIVE-7685.patch.ready
> Similar to HIVE-4248, Parquet tries to write large very large "row groups". This causes
Hive to run out of memory during dynamic partitions when a reducer may have many Parquet files
open at a given time.
> As such, we should implement a memory manager which ensures that we don't run out of
memory due to writing too many row groups within a single JVM.

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