Ethanlm opened a new pull request #3321: URL: https://github.com/apache/storm/pull/3321
## What is the purpose of the change Add a warning about possible issues on a mixed cluster if the StormCommon.systemTopology implementation is changed. For example https://issues.apache.org/jira/browse/STORM-3687 ## How was the change tested N/A Only changed comments ---------------------------------------------------------------- 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: us...@infra.apache.org