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From "Phabricator (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-4221) Stripe-level merge for ORC files
Date Wed, 01 May 2013 01:11:13 GMT

     [ https://issues.apache.org/jira/browse/HIVE-4221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HIVE-4221:
------------------------------

    Attachment: HIVE-4221.HIVE-4221.HIVE-4221.HIVE-4221.D9759.2.patch

sxyuan updated the revision "HIVE-4221 [jira] Stripe-level merge for ORC files
".

  Rebased and made updates based on comments. Confirmed that the merge is in fact happening
when running the orcfile_merge*.q files with TestMinimrCliDriver.

Reviewers: kevinwilfong, omalley

REVISION DETAIL
  https://reviews.facebook.net/D9759

CHANGE SINCE LAST DIFF
  https://reviews.facebook.net/D9759?vs=30621&id=33213#toc

AFFECTED FILES
  conf/hive-default.xml.template
  data/files/smbbucket_1.orc
  data/files/smbbucket_3.orc
  data/files/smbbucket_2.orc
  build-common.xml
  common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
  ql/src/test/results/clientpositive/orc_createas1.q.out
  ql/src/test/results/clientpositive/orcfile_merge3.q.out
  ql/src/test/results/clientpositive/orcfile_merge2.q.out
  ql/src/test/results/clientpositive/alter_merge_orc2.q.out
  ql/src/test/results/clientpositive/alter_merge_orc.q.out
  ql/src/test/results/clientpositive/orcfile_merge1.q.out
  ql/src/test/results/clientpositive/orcfile_merge4.q.out
  ql/src/test/results/clientpositive/alter_merge_orc_stats.q.out
  ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java
  ql/src/test/queries/clientpositive/orcfile_merge2.q
  ql/src/test/queries/clientpositive/orcfile_merge3.q
  ql/src/test/queries/clientpositive/alter_merge_orc.q
  ql/src/test/queries/clientpositive/orcfile_merge4.q
  ql/src/test/queries/clientpositive/alter_merge_orc_stats.q
  ql/src/test/queries/clientpositive/orcfile_merge1.q
  ql/src/test/queries/clientpositive/alter_merge_orc2.q
  ql/src/java/org/apache/hadoop/hive/ql/optimizer/GenMRFileSink1.java
  ql/src/java/org/apache/hadoop/hive/ql/exec/TaskFactory.java
  ql/src/java/org/apache/hadoop/hive/ql/exec/DDLTask.java
  ql/src/java/org/apache/hadoop/hive/ql/exec/MoveTask.java
  ql/src/java/org/apache/hadoop/hive/ql/plan/PlanUtils.java
  ql/src/java/org/apache/hadoop/hive/ql/parse/AlterTablePartMergeFilesDesc.java
  ql/src/java/org/apache/hadoop/hive/ql/parse/DDLSemanticAnalyzer.java
  ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java
  ql/src/java/org/apache/hadoop/hive/ql/io/rcfile/merge/MergeWork.java
  ql/src/java/org/apache/hadoop/hive/ql/io/rcfile/merge/RCFileBlockMergeOutputFormat.java
  ql/src/java/org/apache/hadoop/hive/ql/io/rcfile/merge/RCFileMergeMapper.java
  ql/src/java/org/apache/hadoop/hive/ql/io/rcfile/merge/BlockMergeTask.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcBlockMergeRecordReader.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/Reader.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcBlockMergeInputFormat.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcMergeMapper.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcFile.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/ReaderImpl.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/StripeReader.java
  ql/src/java/org/apache/hadoop/hive/ql/io/orc/WriterImpl.java
  ql/src/java/org/apache/hadoop/hive/ql/io/merge
  ql/src/java/org/apache/hadoop/hive/ql/io/merge/MergeWork.java
  ql/src/java/org/apache/hadoop/hive/ql/io/merge/MergeMapper.java
  ql/src/java/org/apache/hadoop/hive/ql/io/merge/BlockMergeOutputFormat.java
  ql/src/java/org/apache/hadoop/hive/ql/io/merge/BlockMergeTask.java

To: kevinwilfong, omalley, sxyuan
Cc: JIRA

                
> Stripe-level merge for ORC files
> --------------------------------
>
>                 Key: HIVE-4221
>                 URL: https://issues.apache.org/jira/browse/HIVE-4221
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Samuel Yuan
>            Assignee: Samuel Yuan
>         Attachments: HIVE-4221.HIVE-4221.HIVE-4221.HIVE-4221.D9759.1.patch, HIVE-4221.HIVE-4221.HIVE-4221.HIVE-4221.D9759.2.patch
>
>
> As with RC files, we would like to be able to merge ORC files efficiently by reading/writing
stripes without decompressing/recompressing them. This will be similar to the RC file merge,
except that footers will have to be updated with the stripe positions in the new file.

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