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Apache Ambari - What's New in 1.4.1
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Apache Ambari - What's New in 1.4.1

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  • 1. Apache Ambari 1.4.1 October 2013 © Hortonworks Inc. 2013 Page
  • 2. What’s New in Ambari 1.4.1 • Install & Management – Support for Hadoop 2 Stack (YARN and MapReduce 2) – YARN Configuration (including Capacity Scheduler) – Enable NameNode HA (Hadoop 2 Stack only) – Add ZooKeeper Servers • Monitoring – YARN Service and Host Alerts – YARN Dashboard Widgets and Heatmaps © Hortonworks Inc. 2013 Page 2
  • 3. What’s New in Ambari 1.4.1 • Core Improvements – Support for Hadoop 1 to Hadoop 2 upgrade – JDK 7 Support – Oracle JDK 1.7 and Open JDK 7 – More Host Checks and Host Cleanup Script – Host Registration List – Nagios Group Customization – Simplified Local Install – Easier JDK Path setup – Remove EPEL requirement © Hortonworks Inc. 2013 Page 3
  • 4. YARN and MapReduce 2 © Hortonworks Inc. 2013 Page 4
  • 5. YARN Alerts © Hortonworks Inc. 2013 Page 5
  • 6. YARN Dashboard Widgets + Heatmaps © Hortonworks Inc. 2013 Page 6
  • 7. YARN Configuration © Hortonworks Inc. 2013 Page 7
  • 8. Enable NameNode HA • Post-cluster install, wizard driven experience • Combination of manual and automated steps • For Hadoop 2 Stack ONLY © Hortonworks Inc. 2013 Page 8
  • 9. NameNode HA Alerts © Hortonworks Inc. 2013 Page 9
  • 10. Add ZooKeeper Servers © Hortonworks Inc. 2013 Page 10
  • 11. Core Improvements © Hortonworks Inc. 2013 Page 11
  • 12. Host Registration List • During Host Registration, if Ambari Agent hosts register that are NOT in your registration list, you will see a warning • Useful in troubleshooting scenarios where a Host registers with a different hostname than the hostname you specified – Possibly due to DNS and network misconfiguration © Hortonworks Inc. 2013 Page 12
  • 13. Host Cleanup Script © Hortonworks Inc. 2013 Page 13
  • 14. JDK Path Setup • Removed JDK Path field from Install Wizard UI • Ambari will use JDK Path option set during setup ambari-server setup –j /my/jdk/path © Hortonworks Inc. 2013 Page 14
  • 15. Removed EPEL Requirement © Hortonworks Inc. 2013 Page 15
  • 16. Version and iptables • Host Checks for iptables – Ambari Server and Ambari Agent start no longer stop iptables – Be sure to check your network configuration and ports! • Ambari versions accessible from CLI $ ambari-server --version 1.4.1.25 $ ambari-agent --version 1.4.1.25 © Hortonworks Inc. 2013 Page 16
  • 17. Nagios Group Customization © Hortonworks Inc. 2013 Page 17
  • 18. Hosts List UI Improvements longer names component listing © Hortonworks Inc. 2013 Page 18
  • 19. Learn More Resource Location Apache Ambari Project Page http://incubator.apache.org/ambari/ Mailing Lists http://incubator.apache.org/ambari/mail-lists.html Ambari Wiki https://cwiki.apache.org/confluence/display/AMBARI Ambari JIRA https://issues.apache.org/jira/browse/AMBARI © Hortonworks Inc. 2013 Page 19

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