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From "Phabricator (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-5102) ORC getSplits should create splits based the stripes
Date Wed, 11 Sep 2013 18:34:58 GMT

     [ https://issues.apache.org/jira/browse/HIVE-5102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HIVE-5102:
------------------------------

    Attachment: HIVE-5102.D12849.2.patch

omalley updated the revision "HIVE-5102 [jira] ORC getSplits should create splits based the
stripes".

  Resubmit for jenkins

Reviewers: ashutoshc, JIRA

REVISION DETAIL
  https://reviews.facebook.net/D12849

CHANGE SINCE LAST DIFF
  https://reviews.facebook.net/D12849?vs=39849&id=39891#toc

BRANCH
  h-5102

ARCANIST PROJECT
  hive

AFFECTED FILES
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcInputFormat.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/ReaderImpl.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/StripeInformation.java
  ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestInputOutputFormat.java
  ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java
  shims/src/0.20/java/org/apache/hadoop/hive/shims/Hadoop20Shims.java
  shims/src/0.20S/java/org/apache/hadoop/hive/shims/Hadoop20SShims.java
  shims/src/0.23/java/org/apache/hadoop/hive/shims/Hadoop23Shims.java
  shims/src/common/java/org/apache/hadoop/hive/shims/HadoopShims.java

To: JIRA, ashutoshc, omalley

                
> ORC getSplits should create splits based the stripes 
> -----------------------------------------------------
>
>                 Key: HIVE-5102
>                 URL: https://issues.apache.org/jira/browse/HIVE-5102
>             Project: Hive
>          Issue Type: Bug
>          Components: File Formats
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: HIVE-5102.D12579.1.patch, HIVE-5102.D12579.2.patch, HIVE-5102.D12849.1.patch,
HIVE-5102.D12849.2.patch
>
>
> Currently ORC inherits getSplits from FileFormat, which basically makes a split per an
HDFS block. This can create too little parallelism and would be better done by having getSplits
look at the file footer and create splits based on the stripes.

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