JiaLiangC opened a new pull request, #3779: URL: https://github.com/apache/ambari/pull/3779
## What changes were proposed in this pull request? In day-to-day operations, 99% of changes usually occur under the Ambari Stack rather than the Ambari Server itself. In such circumstances, using MPack to solely update the stack's content becomes highly essential. For instance, when updating the Ambari service code in an already existing environment, like the management code for the HDFS service, there's no need for manual distribution or synchronization, just package it into an MPack for the update. While MPacks are convenient, manually packaging an MPack can be cumbersome, hence a tool is proposed to automate the packaging of existing services into an MPack. ## How was this patch tested? manual test  after install the stack mpack ,all service linked to the installed mpack  (Please explain how this patch was tested. Ex: unit tests, manual tests) (If this patch involves UI changes, please attach a screen-shot; otherwise, remove this) Please review [Ambari Contributing Guide](https://cwiki.apache.org/confluence/display/AMBARI/How+to+Contribute) before opening a pull request. -- 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: dev-unsubscr...@ambari.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@ambari.apache.org For additional commands, e-mail: dev-h...@ambari.apache.org
