See #21458. Currently, Tune keeps its own list of alive node IPs, but this information is only updated every 10 seconds and is usually stale when a new node is added. Because of this, the first trial scheduled on this node is usually marked as failed. This PR adds a test confirming this behavior and gets rid of the unneeded code path.
Co-authored-by: Xiaowei Jiang <xwjiang2010@gmail.com>
Co-authored-by: xwjiang2010 <87673679+xwjiang2010@users.noreply.github.com>
Currently we install OpenSSH on the fly in fake multinode docker testing. Instead we can speed testing up a fair bit by building a Docker image which includes OpenSSH first and then run tests with this image.