[jira] [Updated] (HIVE-5102) ORC getSplits should create splits based the stripes

[Phabricator (JIRA)]

     [ 
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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