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https://issues.apache.org/jira/browse/SPARK-26783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16756994#comment-16756994
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Gabor Somogyi edited comment on SPARK-26783 at 1/31/19 8:14 AM:
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cc [~joseph.torres] [~kabhwan]

[~LI,Xiao] AFAIK you're leading DSv2, can you make judgement in this area? 
Namely now sources receiving lowercase parameters but:
* APIs sometimes doesn't state that or state case-insensitive only
* Documentation writes parameters camel case

So the question is: Are the parameters accidentally or officially lowercase? 
It's required heavily by documentation.



was (Author: gsomogyi):
cc [~joseph.torres] [~kabhwan]

[~LI,Xiao] AFAIK you're leading DSv2, can you make judgement in this area? 
Namely now sources receiving lowercase parameters but:
* APIs sometimes doesn't state that or state case-insensitive only
* Documentation writes parameters camel case
So the question is: Are the parameters accidentally or officially lowercase? 
It's required heavily by documentation.


> Kafka parameter documentation doesn't match with the reality (upper/lowercase)
> ------------------------------------------------------------------------------
>
>                 Key: SPARK-26783
>                 URL: https://issues.apache.org/jira/browse/SPARK-26783
>             Project: Spark
>          Issue Type: Bug
>          Components: Structured Streaming
>    Affects Versions: 3.0.0
>            Reporter: Gabor Somogyi
>            Priority: Minor
>
> A good example for this is "failOnDataLoss" which is reported in SPARK-23685. 
> I've just checked and there are several other parameters which suffer from 
> the same issue.



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