LantaoJin opened a new pull request #29123: URL: https://github.com/apache/spark/pull/29123
### What changes were proposed in this pull request? `spark.kryo.registrator` in 3.0 has a regression problem. From [SPARK-12080](https://issues.apache.org/jira/browse/SPARK-12080), it supports multiple user registrators by ```scala private val userRegistrators = conf.get("spark.kryo.registrator", "") .split(',').map(_.trim) .filter(!_.isEmpty) ``` But it donsn't work in 3.0. Fix it by `toSequence` in `Kryo.scala` ### Why are the changes needed? In previous Spark version (2.x), it supported multiple user registrators by ```scala private val userRegistrators = conf.get("spark.kryo.registrator", "") .split(',').map(_.trim) .filter(!_.isEmpty) ``` But it doesn't work in 3.0. It's should be a regression. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Existed unit tests. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
