warrenzhu25 opened a new pull request, #41076: URL: https://github.com/apache/spark/pull/41076
### What changes were proposed in this pull request? Add config `spark.decommission.maxRatio` to control max ratio of decommissioning executors of running ones ### Why are the changes needed? Decommission too many executors at the same time with shuffle or rdd migration could severely hurt performance of shuffle fetch. Block manager decommissioner try to migrate shuffle or rdd as soon as possible, this will compete network and disk IO with shuffle fetch in the target executor. ### Does this PR introduce _any_ user-facing change? Yes, added new config `spark.decommission.maxRatio` ### How was this patch tested? Added test in `ExecutorMonitorSuite` -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
