Once I finished configuring all placement of the services during install, i click deploy and it failed. Couldn't catch the failure.
Now when log into ambari i see this:
I click on launch install wizard and it takes me to home page of ambari:
Clearly none of the services got installed and it won't let me start over. it is very confused. I called the rest service to determine what cluster it thinks i have running:
curl -user admin:xxxx http://xxxxx.cloud.hortonworks.com/api/v1/clusters
curl: (52) Empty reply from server
Basically how do I start over?
If nothing installed to the cluster you can do an ambari-server reset and start over effectively.
1. Stop Ambari Server
2. Reset Ambari Server
3. Start Start Ambari server
I would verify that nothing got deployed to any of the hosts in the cluster prior to re-installing.
View solution in original post
Even if something did get deployed, you can reset and rerun the install. Once nodes register with ambari server, Ambari will report that it found binaries for hadoop and advise to run cleanup script. Additionally you could yum erase anything hdp.
We ran into a similar issue with a customer. To clean up you need to do the followin
Stop all services and run the cleanup script
You have elected to remove all users as well. If it is not intended then use option --skip "users". Do you want to continue [y/n] (n)
You have elected to remove all users as well. If it is not intended then use option --skip
. Do you want to
Run the above on each hosts.
Next you would want to do a ambari reset and follow the steps that Scott mentioned.