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Posted to issues@spark.apache.org by "Josh Rosen (JIRA)" <ji...@apache.org> on 2014/09/04 19:54:51 UTC
[jira] [Resolved] (SPARK-1078) Replace lift-json with
json4s-jackson
[ https://issues.apache.org/jira/browse/SPARK-1078?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Josh Rosen resolved SPARK-1078.
-------------------------------
Resolution: Fixed
Fix Version/s: 1.0.0
It looks like this was fixed in SPARK-1132 / Spark 1.0.0, where we migrated to json4s.jackson.
> Replace lift-json with json4s-jackson
> -------------------------------------
>
> Key: SPARK-1078
> URL: https://issues.apache.org/jira/browse/SPARK-1078
> Project: Spark
> Issue Type: Task
> Components: Deploy, Web UI
> Affects Versions: 0.9.0
> Reporter: William Benton
> Priority: Minor
> Fix For: 1.0.0
>
>
> json4s-jackson is a Jackson-backed implementation of the Json4s common JSON API for Scala JSON libraries. (Evan Chan has a nice comparison of Scala JSON libraries here: http://engineering.ooyala.com/blog/comparing-scala-json-libraries) It is Apache-licensed, mostly API-compatible with lift-json, and easier for downstream operating system distributions to consume than lift-json.
> In terms of performance, json4s-jackson is slightly slower but comparable to lift-json on my machine when parsing very small JSON files (< 2kb and < ~30 objects), around 40% faster than lift-json on medium-sized files (~50kb), and significantly (~10x) faster on multi-megabyte files.
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