Github user greghogan commented on the issue:
https://github.com/apache/flink/pull/3701
I had provided some examples in the JIRA, but yes, it allows delaying
evaluation of the java opts (with double quotes) until immediately before the
daemon is started. This allows creating additional log files such as for JFR or
JitWatch (the two use cases I have needed, I expect there are more). In
addition the log rotation, Flink may be running multiple TaskManagers on the
same instance so reusing Flink's log naming scheme prevents overwriting files.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
