@Artem Ervits @Neeraj Sabharwal Can anyone of you guys help me ? ... View more

@Paula Morais I got the solution for this. After decommissioning the node, first you need to check /etc/hosts file whether decommissioned host is present or not on Name node host. I am sure, it will be there, try to delete that decommissioned host name and restart Namenodes, later check /etc/hosts file. You need to restart the HDFS and Mapreduce i believe, anyway it will show you on ambari dash board which services need to be restarted. Thank you and let me know it is worked for you or not. It worked for me. ... View more

@vpoornalingam We are having a small cluster with 30 nodes, in which 18 are data nodes. We assigned 15GB for ambari-server. we deployed our packages through slider in hadoop cluster as a long running jobs. We are not using any ecosystems. Thank you. For how many days, we need to store the AMS data? Is there any specific calculation for that? ... View more

@Terry Padgett Thank you.I am asking about ambari server backup, which is having metrics data from the last 2 months and captured most of the disk space. Let me know the process how to backup the metrics data and ambari server up and running without having downtime. Is there any downtime while doing the backup? ... View more

@Shivaji Thank you. ... View more

@Geoffrey Shelton Okot we are writing a multi-node application that "heals" itself when a node is lost. In order to test the "healing" process we need to kill one of the node containers. Is there a way to do this? Is there any application in the Hadoop ecosystem that does this? We are running our packages through slider in hadoop cluster as long running jobs. ... View more

@Geoffrey Shelton OkotI am asking to kill the container directly. I am aware of killing application. Thank you. ... View more