Yarn: Yarn install checks the version of yarn installation!

[htondkar]

Do you want to request a feature or report a bug?
BUG

What is the current behavior?
When I run yarn it both installs packages and checks for updates for yarn itself. The machine that is running this command is using a private registry and does not have any access to the internet. The problem is that yarn's request to "yarn.pkg/latest-version" fails and is retried for 3 times which blocks my pipeline for 6 minutes or more which is unacceptable.

If the current behavior is a bug, please provide the steps to reproduce.
Just run yarn install --verbose and observe the network requests made by yarn.

What is the expected behavior?
Checking for updates for yarn has nothing to do with installing packages. It's wrong to mix concerns and do both thing under one command. There should be a separate command or flag to control this behavior. It can cause a lot of problems in isolated environments.

Please mention your node.js, yarn and operating system version.
Node: v10.16.0
Yarn: 1.15.2
OS: Ubuntu 18.04.2

[aladdin-add]

+1 , hit the same issue!

[zhixiaoqiang]

+1 , hit the same issue!