haiyang1987 opened a new pull request #3651: URL: https://github.com/apache/hadoop/pull/3651
### Description of PR Consider that make dfs.namenode.block-placement-policy.exclude-slow-nodes.enabled reconfigurable and rapid rollback in case this feature HDFS-16076 unexpected things happen in production environment Details: [HDFS-16314](https://issues.apache.org/jira/browse/HDFS-16314) -- 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: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org