I am following these instructions http://hortonworks.com/blog/building-hadoop-vm-quickly-ambari-vagrant/ for setting up a cluster using vagrant. When I try to SSH to the VM, I get prompted for password. The default vagrant password
"vagrant" doesn't work. What can I do to bypass the password requirement?
Try ssh with vagrant ssh <vm>.
This setup uses key based authentication and it should never prompt you for password once you use vagrant ssh <vm>
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Also if you use vagrant to provision VMs please avoid using VM GUI as you can accidentally disassociate your VMs from vagrant keys and also cause vagrant lose ssh permission. I had that happen to me and restoring access is not intuitive.
Thanks @Ravi Mutyala and @Artem Ervits. After getting stuck I ended up starting over using instructions on Apache wiki. I'm not sure what exactly was different but no password-related problems.