Thanks. I think what Sumit mentioned is what I'm looking for. I can't go into all the details but the basics is that we have a large number of nodes and other processes will be managing resources and determining what nodes something like yarn will be running on. Yarn could be running on node A one day and node B the next. We want to use Ambari to monitor our cluster health without it being a provisioning tool.
So, my thinking was that I could delete the cluster and recreate the cluster using the api and blueprints. I would have a script that would update the blueprint json data to reflect the new hostname. As long as we had node A and node B already setup with Yarn installed (not running, just installed and ready to be used), Ambari could setup the cluster pretty quickly. This might not work well or be very efficient. Just trying some different ideas. On Thu, Apr 30, 2015 at 4:00 PM, Ravi Mutyala <[email protected]> wrote: > I used ambari to take over an existing cluster long time back. The trick > then was to configure ambari to install all software to dummy locations. > Again, this installs all rpms, just wont disturb you data and > configurations. > > Once the install is complete, you can use Rest API, configs.sh and ambari > UI to reconfigure them to point to the right paths. > > This obviously takes some downtime and reinstall of packages but data > should be intact. > > Thanks > > On Thu, Apr 30, 2015 at 5:36 PM, Donald Hansen <[email protected]> > wrote: > > > I'm wondering if I could maybe do something to the Ambari Agent code to > > skip the actual install and setup process and make it think that finished > > and report back to the server that it completed. > > > > Any thoughts on this? A more elegant solution would be cool, just trying > to > > do a POC first. > > > > On Thu, Apr 30, 2015 at 10:54 AM, Donald Hansen <[email protected]> > > wrote: > > > > > I'm curious if anyone has done any work towards or any workaround to > > > bypass things getting installed on the hosts. Basically I want to > install > > > Ambari server and point it to some already setup hosts that have Ambari > > > Agent installed along with things like HDFS. I don't want Ambari to > > > reinstall or reset anything. > > > > > >
