The Hortonworks Community Connection is now live. A completely rebuilt Q&A forum, Knowledge Base, Code Hub and more, backed by the experts in the industry.

You will be redirected here in 10 seconds. If your are not redirected, click here to visit the new site.

The legacy Hortonworks Forum is now closed. You can view a read-only version of the former site by clicking here. The site will be taken offline on January 31,2016

HDP on Linux – Installation Forum

Ambari server host registration after VM clone

  • #48968
    K. Eric Harper

    Gentlemen, thank you in advance for your assistance. I am cloning a virtual machine with Ambari server installed, and the clone has a new hostname. When ambari-server is restarted the log file /var/log/ambari-server/ambari-server.log contains references to the old hostname. I find if I uninstall and reinstall and setup ambari-server fresh, the log file has references to both the old and new hostnames (heartbeat lost). Is it possible to edit the Ambari configuration instead of uninstalling and reinstalling ambari-server to register the correct hostname? I am guessing that the hostname is going into the database, maybe the edit is required there. What do you think?

  • Author
  • #49042
    Jeff Sposetti

    If you do not need to preserve any of the ambari information (the info about the cluster layout, configs, etc), you can run “ambari-server reset” to clear the ambari database. You are prompted to confirm the reset (twice), so please be sure that is what you want to do, as it will erase the ambari-server database.

    K. Eric Harper

    That was exactly the guidance I needed, thanks!

The forum ‘HDP on Linux – Installation’ is closed to new topics and replies.

Support from the Experts

A HDP Support Subscription connects you experts with deep experience running Apache Hadoop in production, at-scale on the most demanding workloads.

Enterprise Support »

Become HDP Certified

Real world training designed by the core architects of Hadoop. Scenario-based training courses are available in-classroom or online from anywhere in the world

Training »

Hortonworks Data Platform
The Hortonworks Data Platform is a 100% open source distribution of Apache Hadoop that is truly enterprise grade having been built, tested and hardened with enterprise rigor.
Get started with Sandbox
Hortonworks Sandbox is a self-contained virtual machine with Apache Hadoop pre-configured alongside a set of hands-on, step-by-step Hadoop tutorials.
Modern Data Architecture
Tackle the challenges of big data. Hadoop integrates with existing EDW, RDBMS and MPP systems to deliver lower cost, higher capacity infrastructure.