beam-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jean-Baptiste Onofré (JIRA) <>
Subject [jira] [Created] (BEAM-1323) Add parallelism/splitting in JdbcIO
Date Thu, 26 Jan 2017 08:17:24 GMT
Jean-Baptiste Onofré created BEAM-1323:

             Summary: Add parallelism/splitting in JdbcIO
                 Key: BEAM-1323
             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