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https://issues.apache.org/jira/browse/BAHIR-110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16082927#comment-16082927
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ASF GitHub Bot commented on BAHIR-110:
--------------------------------------
Github user emlaver commented on a diff in the pull request:
https://github.com/apache/bahir/pull/45#discussion_r126801128
--- Diff: sql-cloudant/README.md ---
@@ -52,39 +51,71 @@ Here each subsequent configuration overrides the
previous one. Thus, configurati
### Configuration in application.conf
-Default values are defined in
[here](cloudant-spark-sql/src/main/resources/application.conf).
+Default values are defined in [here](src/main/resources/application.conf).
### Configuration on SparkConf
Name | Default | Meaning
--- |:---:| ---
+cloudant.apiReceiver|"_all_docs"| API endpoint for RelationProvider when
loading or saving data from Cloudant to DataFrames or SQL temporary tables.
Select between "_all_docs" or "_changes" endpoint.
--- End diff --
Fixed in 5588c87.
> Replace use of _all_docs API with _changes API in all receivers
> ---------------------------------------------------------------
>
> Key: BAHIR-110
> URL: https://issues.apache.org/jira/browse/BAHIR-110
> Project: Bahir
> Issue Type: Improvement
> Reporter: Esteban Laver
> Original Estimate: 216h
> Remaining Estimate: 216h
>
> Today we use the _changes API for Spark streaming receiver and _all_docs API
> for non-streaming receiver. _all_docs API supports parallel reads (using
> offset and range) but performance of _changes API is still better in most
> cases (even with single threaded support).
> With this ticket we want to:
> a) re-implement all receivers using _changes API
> b) compare performance between the two implementations based on _changes and
> _all_docs
> Based on the results in b) we could decide to either
> - replace _all_docs implementation with _changes based implementation OR
> - allow customers to pick one (with a solid documentation about pros and
> cons)
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