xuanyuanking opened a new pull request #28965: URL: https://github.com/apache/spark/pull/28965
### What changes were proposed in this pull request? Use the invalid value -2 to fill the map index when the event logs from the old Spark version. ### Why are the changes needed? Follow up PR for #28941. ### Does this PR introduce _any_ user-facing change? When we use the Spark version 3.0 history server reading the event log written by the old Spark version, we use the invalid value -2 to fill the map index. ### How was this patch tested? Existing UT. ---------------------------------------------------------------- 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]
