[
https://issues.apache.org/jira/browse/BEAM-2532?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16091542#comment-16091542
]
ASF GitHub Bot commented on BEAM-2532:
--------------------------------------
GitHub user nevillelyh opened a pull request:
https://github.com/apache/beam/pull/3584
[BEAM-2532] add a Serializable TableSchema Supplier in BigQuerySourceBase
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/nevillelyh/beam neville/BEAM-2532
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/beam/pull/3584.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3584
----
commit 8f884d31d949d8f62e787c3d6f67cd2c1b8bceab
Author: Neville Li <[email protected]>
Date: 2017-07-18T13:07:21Z
[BEAM-2532] add a Serializable TableSchema Supplier in BigQuerySourceBase
----
> BigQueryIO source should avoid expensive JSON schema parsing for every record
> -----------------------------------------------------------------------------
>
> Key: BEAM-2532
> URL: https://issues.apache.org/jira/browse/BEAM-2532
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-gcp
> Affects Versions: 2.0.0
> Reporter: Marian Dvorsky
> Assignee: Chamikara Jayalath
> Priority: Minor
>
> BigQueryIO source converts the schema from JSON for every input row, here:
> https://github.com/apache/beam/blob/master/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BigQuerySourceBase.java#L159
> This is the performance bottleneck in a simple pipeline with BigQueryIO
> source.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
