brew install hadoop installing 2.8.1 version. But needed 2.7.4 version
(@bfontaine its not a duplicate question as that answer is 6 years ago and no longer works)
You can try running
brew list --versions hadoopto see if you have previous versions and you can switch to it by running
brew switch hadoop 2.7.4 There is
brew install <package_name>@<version>Unfortunately it seems hadoop and many other packages haven't set it up to be possible to download the older version and I haven't found out a way to do it.
As I am writing this, there is a version 2.7.7 of hadoop here: https://dist.apache.org/repos/dist/release/hadoop/common/
You can use 'brew edit hadoop' to refer to that version directly, and then run 'brew install hadoop'.