Github user aljoscha commented on the issue:
https://github.com/apache/flink/pull/2176
Re 1. I think this should be fine. There is some dynamic code generation
but this uses Janino as a library so that shouldn't be a problem.
Re 2. I'm not aware of any but it should be easy to add them if we find any
in the future.
Re 3. This is not easily possible since the `&` is hardcoded in
`flink-daemon.sh`:
```
$JAVA_RUN $JVM_ARGS ${FLINK_ENV_JAVA_OPTS} "${log_setting[@]}" -classpath
"`manglePathList "$FLINK_TM_CLASSPATH:$INTERNAL_HADOOP_CLASSPATHS"`"
${CLASS_TO_RUN} "${ARGS[@]}" > "$out" 2>&1 < /dev/null &
```
I'd be very happy if you'd like to work on adding a flag or setting to make
the daemons start non-daemonized. It should not be too hard to add that, IMHO.
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