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Posted to issues@kylin.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/11/05 02:59:00 UTC
[jira] [Commented] (KYLIN-3552) Data Source SDK to ingest data from
different JDBC sources
[ https://issues.apache.org/jira/browse/KYLIN-3552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16674618#comment-16674618 ]
ASF GitHub Bot commented on KYLIN-3552:
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edouardzyc opened a new pull request #327: KYLIN-3552 add doc and blog
URL: https://github.com/apache/kylin/pull/327
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> Data Source SDK to ingest data from different JDBC sources
> ----------------------------------------------------------
>
> Key: KYLIN-3552
> URL: https://issues.apache.org/jira/browse/KYLIN-3552
> Project: Kylin
> Issue Type: New Feature
> Components: Query Engine, RDBMS Source
> Reporter: youcheng.zhang
> Assignee: youcheng.zhang
> Priority: Major
> Fix For: v2.6.0
>
> Attachments: test_evidence_datasource.docx
>
>
> Kylin already supports JDBC source, but it takes much efforts to develop an implementation to a new source engine, like supporting metadata sync, cube build and query pushdown. It’s mainly because the SQL dialects and jdbc implementations between source engines are quite different.
> We propose to develop a data source sdk, which provides APIs to help developers handle these dialect differences and easily implement an adaptor for one source engine. With this SDK, users can achieve followings from a JDBC source:
> # synchronize metadata and data from jdbc source.
> # Build cube from jdbc source.
> # query pushdown to jdbc source engine when cube is unmatched.
> The SDK will define some interfaces of adaptors. To implement a new source, developers only need to implement an adaptor for the source.
> To keep compatibly, we will keep the existing JDBC source module, and implement a new JDBC source module as the caller of the SDK. Besides, we will also provide a pushdown implementation class as the caller of SDK for pushdown scenarios.
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