[jira] [Assigned] (FLINK-33221) Add config options for administrator JVM options

["Fang Yong (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-33221?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fang Yong reassigned FLINK-33221:
---------------------------------

    Assignee: Zhanghao Chen

> 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
>            Assignee: Zhanghao Chen
>            Priority: Major
>
> 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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