how to set JVM parameter when submit topology?

[happy li]

the code needs to connect mysql to store data, in develop environment
it connects to mysql A, in live environment it connects to mysql B.
Distinguish between the two environments is by setting a JVM parameter
"-Dconfig.product=true".

Does storm support setting JVM parameter when submitting topology? and
how?

[songhe yang]

You can set the configure in storm.yaml.

# to nimbus
nimbus.childopts: "-Xmx1024m"

# to supervisor
supervisor.childopts: "-Xmx1024m"

# to worker
worker.childopts: "-Xmx768m"

[happy li]

so, in my case, I should write:
worker.childopts:"-Dconfig.product=true"

right?

[happy li]

I search topic about JVM in this group, and I get the answer,
something like this:

worker.childopts: "-Dworker=worker -Xmx768m -Xdebug -Xnoagent -
Djava.compiler=NONE -
Xrunjdwp:transport=dt_socket,address=8111,suspend=y,server=y "

Hope this can also help others.