You may want to read about the JVM and have some degree of understanding what you're talking about, and then you'd know that those options have different meanings. You can view both at the same time, for example.
On Thu, Apr 16, 2020, 2:13 AM jane thorpe <janethor...@aol.com.invalid> wrote: > https://spark.apache.org/docs/3.0.0-preview/web-ui.html#storage-tab > > On the link in one of the screen shot there are two checkboxes. > ON HEAP MEMORY > OFF HEAP MEMORY. > > That is as useful as a pussy on as Barry Humphries wearing a gold dress > as Dame Edna average. > > Which monkey came up with that ? > None of the moneys here noticed that ? > > Ever heard of a toggle switch. > look behind you. > Look at the light switch. > That is a Toggle switch ON/OFF. > > > Jane thorpe > janethor...@aol.com >
