[jira] [Commented] (SPARK-12141) Use Jackson to serialize all events when writing event log

["Marcelo Vanzin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-12141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15133048#comment-15133048 ] 

Marcelo Vanzin commented on SPARK-12141:
----------------------------------------

https://github.com/FasterXML/jackson-module-scala/issues/87 is an interesting bug that might affect this.

> Use Jackson to serialize all events when writing event log
> ----------------------------------------------------------
>
>                 Key: SPARK-12141
>                 URL: https://issues.apache.org/jira/browse/SPARK-12141
>             Project: Spark
>          Issue Type: Task
>          Components: Spark Core
>            Reporter: Marcelo Vanzin
>
> SPARK-11206 added infrastructure to serialize events using Jackson, so that manual serialization code is not needed anymore.
> We should write all events using that support, and remove all the manual serialization code in {{JsonProtocol}}.
> Since the event log format is a semi-public API, I'm targeting this at 2.0. Also, we can't remove the manual deserialization code, since we need to be able to read old event logs.



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