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https://issues.apache.org/jira/browse/IMPALA-12502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17799958#comment-17799958
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ASF subversion and git services commented on IMPALA-12502:
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Commit ec22a1e1cad9f2e0ab75a598eb75727c7a044172 in impala's branch
refs/heads/master from wzhou-code
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=ec22a1e1c ]
IMPALA-12502: Support Impala to Impala federation
This patch adds support to read Impala tables in the Impala cluster
through JDBC external data source. It also adds a new counter
NumExternalDataSourceGetNext in profile for the total number of calls
to ExternalDataSource::GetNext().
Setting query options for Impala will be supported in a following patch.
Testing:
- Added an end-to-end unit test to read Impala tables from Impala
cluster through JDBC external data source.
Manually ran the unit-test with Impala tables in Impala cluster on a
remote host by setting $INTERNAL_LISTEN_HOST in jdbc.url as the ip
address of the remote host on which an Impala cluster is running.
- Added LDAP test for reading table through JDBC external data source
with LDAP authentication.
Manually ran the unit-test with Impala tables in a remote Impala
cluster.
- Passed core tests.
Change-Id: I79ad3273932b658cb85c9c17cc834fa1b5fbd64f
Reviewed-on: http://gerrit.cloudera.org:8080/20731
Reviewed-by: Abhishek Rawat <[email protected]>
Tested-by: Wenzhe Zhou <[email protected]>
> Support Impala to Impala federation
> -----------------------------------
>
> Key: IMPALA-12502
> URL: https://issues.apache.org/jira/browse/IMPALA-12502
> Project: IMPALA
> Issue Type: Sub-task
> Components: Backend, Frontend
> Reporter: Wenzhe Zhou
> Assignee: Wenzhe Zhou
> Priority: Major
>
> Support to read Impala tables from another Impala cluster through JDBC
> external data source
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