1. Apache Ambari
1.4.1
October 2013
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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
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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
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4. YARN and MapReduce 2
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5. YARN Alerts
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6. YARN Dashboard Widgets + Heatmaps
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7. YARN Configuration
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8. Enable NameNode HA
• Post-cluster install, wizard driven experience
• Combination of manual and automated steps
• For Hadoop 2 Stack ONLY
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9. NameNode HA Alerts
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10. Add ZooKeeper Servers
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11. Core Improvements
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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
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13. Host Cleanup Script
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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
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15. Removed EPEL Requirement
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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
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17. Nagios Group Customization
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18. Hosts List UI Improvements
longer names
component listing
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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
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