Zhanghao Chen created FLINK-33221:
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Summary: Add config options for administrator JVM options
Key: FLINK-33221
URL: https://issues.apache.org/jira/browse/FLINK-33221
Project: Flink
Issue Type: Improvement
Components: Runtime / Configuration
Reporter: Zhanghao Chen
We encounter similar issues described in SPARK-23472. Users may need to add JVM
options to their Flink applications (e.g. to tune GC options). They typically
use {{env.java.opts.x}} series of options to do so. We also have a set of
administrator JVM options to apply by default, e.g. to enable GC log, tune GC
options, etc. Both use cases will need to set the same series of options and
will clobber one another.
In the past, we generated and pretended to the administrator JVM options in the
Java code for generating the starting command for JM/TM. However, this has been
proven to be difficult to maintain.
Therefore, I propose to also add a set of default JVM options for administrator
use that prepends the user-set extra JVM options. We can mark the existing
{{env.java.opts.x}} series as user-set extra JVM options and add a set of new
{{env.java.opts.x.default}} options for administrator use.
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