Github user vanzin commented on the pull request:
https://github.com/apache/spark/pull/4683#issuecomment-74977400
Hi @zhzhan ,
The reason why I haven't posted my code for review is because Yarn does not
provide all the needed public APIs to implement this. If you read the
discussion in SPARK-1537 you'll see what I mean. For example, this class is
used by my code (and yours too) when it actually shouldn't be:
@Singleton
@Provider
@Unstable
@Private
public class YarnJacksonJaxbJsonProvider extends
JacksonJaxbJsonProvider {
I strongly feel this code should not go in without Yarn providing the
needed, *public* APIs to properly implement this.
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