beam-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Eugene Kirpichov (JIRA)" <>
Subject [jira] [Commented] (BEAM-1323) Add parallelism/splitting in JdbcIO
Date Tue, 01 Aug 2017 19:59:00 GMT


Eugene Kirpichov commented on BEAM-1323:

Filed for the latter, and I suggest to close
the current JIRA unless we have a compelling use case for which generic built-in splitting
support in is both practical and easier to use.

> Add parallelism/splitting in JdbcIO
> -----------------------------------
>                 Key: BEAM-1323
>                 URL:
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-extensions
>            Reporter: Jean-Baptiste Onofré
>            Assignee: Jean-Baptiste Onofré
> Now, the JDBC IO is basically a {{DoFn}} executed with a {{ParDo}}. So, it means that
parallelism is "limited" and executed on one executor.
> We can imagine to create several JDBC {{BoundedSource}}s splitting the SQL query in 
subset (for instance using row id paging or any "splitting/limit" we can figure based on the
original SQL query) (something similar to what Sqoop is doing).

This message was sent by Atlassian JIRA

View raw message