[jira] [Commented] (SPARK-24154) AccumulatorV2 loses type information during serialization
[ https://issues.apache.org/jira/browse/SPARK-24154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16462630#comment-16462630 ] Sergey Zhemzhitsky commented on SPARK-24154: > If users have to support mixin traits, they
[jira] [Commented] (SPARK-24154) AccumulatorV2 loses type information during serialization
[ https://issues.apache.org/jira/browse/SPARK-24154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16462413#comment-16462413 ] Wenchen Fan commented on SPARK-24154: - I think this is a trade-off: In accumulator v1, we have