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https://issues.apache.org/jira/browse/HIVE-2711?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HIVE-2711:
------------------------------
Attachment: HIVE-2711.D2115.3.patch
omalley updated the revision "HIVE-2711 [jira] Make the header of RCFile
unique".
Reviewers: JIRA
Fixed unit tests based on the new file sizes.
REVISION DETAIL
https://reviews.facebook.net/D2115
AFFECTED FILES
ql/src/java/org/apache/hadoop/hive/ql/io/RCFile.java
ql/src/test/data/rc-file-v0.rc
ql/src/test/org/apache/hadoop/hive/ql/io/TestRCFile.java
ql/src/test/results/clientpositive/alter_concatenate_indexed_table.q.out
ql/src/test/results/clientpositive/alter_merge.q.out
ql/src/test/results/clientpositive/alter_merge_stats.q.out
ql/src/test/results/clientpositive/create_merge_compressed.q.out
ql/src/test/results/clientpositive/ctas.q.out
ql/src/test/results/clientpositive/partition_wise_fileformat.q.out
ql/src/test/results/clientpositive/partition_wise_fileformat3.q.out
ql/src/test/results/clientpositive/sample10.q.out
> Make the header of RCFile unique
> --------------------------------
>
> Key: HIVE-2711
> URL: https://issues.apache.org/jira/browse/HIVE-2711
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Attachments: HIVE-2711.D2115.1.patch, HIVE-2711.D2115.2.patch,
> HIVE-2711.D2115.3.patch, HIVE-2711.D2571.1.patch
>
>
> The RCFile implementation was copied from Hadoop's SequenceFile and copied
> the 'magic' string in the header. This means that you can't use the header to
> distinguish between RCFiles and SequenceFiles.
> I'd propose that we create a new header for RCFiles (RCF?) to replace the
> current SEQ. To maintain compatibility, we'll need to continue to accept the
> current 'SEQ\06' and just make new files contain the new header.
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