200MB.
Why this behaviour? Why Spark is using practically all the available RAM if
I use only 1 worker with a 2.8GB limit in total?
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I have a machine with an 8GB total memory, on which there are other
applications installed.
The Spark application must run 1 driver and two jobs at a time. I have
configured 8 cores in total.
The machine (without Spark) has 4GB of free RAM (the other half RAM is
used by other applications).
