How to increase the degree of parallelism when reindexing a space

[spotlesscoder]

I wanted to reindex my space with the apache tika full docker image so set up tika on a powerful server with lots of CPU cores and pointed opencloud to use it.

I also set POSTPROCESSING_WORKERS to 10 and recreated the opencloud docker image but still only two tesseract processes are visible on the tika server while reindexing the space

How do I increase the degree of parallelism?

Also, can I change the values of configuration variables I set via env at runtime - like for example with the opencloud CLI?