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https://issues.apache.org/jira/browse/HIVE-1918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12984981#action_12984981
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Carl Steinbach commented on HIVE-1918:
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@Krishna: I tried applying the patch to trunk and running the tests. Noticed a
couple things upfront that need to be fixed:
* The patch doesn't apply cleanly with 'patch -p0'. To satisfy this using a Git
repo you need to generate the patch using 'git diff --no-prefix ...'
* Most of the new exim* tests fail with diffs. Can you please fix this and
update the patch?
* 'hive.test.exim' needs to be added to HiveConf and hive-default.xml. There is
already a 'hive.test.mode.*' namespace defined in HiveConf, so you should
probably follow this convention and change the name to 'hive.test.mode.exim'. I
think an even better solution would be to instead define a new conf property
called 'hive.exim.uri.scheme.whitelist' and make it a comma separated list of
acceptable URI schemes for import and export.
> Add export/import facilities to the hive system
> -----------------------------------------------
>
> Key: HIVE-1918
> URL: https://issues.apache.org/jira/browse/HIVE-1918
> Project: Hive
> Issue Type: New Feature
> Components: Query Processor
> Reporter: Krishna Kumar
> Attachments: HIVE-1918.patch.txt
>
>
> This is an enhancement request to add export/import features to hive.
> With this language extension, the user can export the data of the table -
> which may be located in different hdfs locations in case of a partitioned
> table - as well as the metadata of the table into a specified output
> location. This output location can then be moved over to another different
> hadoop/hive instance and imported there.
> This should work independent of the source and target metastore dbms used;
> for instance, between derby and mysql.
> For partitioned tables, the ability to export/import a subset of the
> partition must be supported.
> Howl will add more features on top of this: The ability to create/use the
> exported data even in the absence of hive, using MR or Pig. Please see
> http://wiki.apache.org/pig/Howl/HowlImportExport for these details.
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