apache ambari - what's new in 1.5.0

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Apache Ambari

1.5.0

April 2014

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What’s New in Ambari 1.5.0?

• Maintenance Mode• Rolling Restarts• Bulk Host Operations• Service and Component Restarts• Decommission TTs, NMs, RSs• Add Service• Customize ZooKeeper Configs• Refresh Client Configs• Default JDK 7

• For a complete list of changes:https://issues.apache.org/jira/browse/AMBARI/fixforversion/12325019

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Maintenance Mode

• Goal: silence alerts for services, hosts and components when performing maintenance

• Ability to put Service or Host “Out of Service”• Alerts will be suspended for that item• Item will not respond to bulk operations (such as restarts)

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Rolling Restarts

• Goal: minimize cluster downtime + service impact when making changes across many hosts

• Ability to initiate a "rolling restart" of components• Optionally include only hosts with configurations changes• Set host batch size + time to wait between batches• Set failure tolerance to halt restarts automatically

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Bulk Host Operations

• Perform host operations such as Stop, Start, Restart, Decommission, Maintenance Mode in “bulk” form

• Apply operations to all hosts, filtered hosts or a selected group of hosts

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Restarts

• Explicit “Restart” operation• For Components, Hosts and Services

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Components Hosts Services

Restart individual components at the host level.

Restart all components on a given host.

Restart all components of a given service.

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Decommission

• TaskTrackers (HDP 1.3)• NodeManagers (HDP 2.0 and 2.1)• RegionServers (HDP 1.3, 2.0 and 2.1)

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Customizable ZooKeeper Configs

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Custom Properties

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Refresh Client Configs

• Ability to refresh client configurations on a host• Useful for client-only hosts

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Default JDK 7

• Select JDK during setup–Will match JCE + JDK to selected JDK version

• Custom JDK option–You must match JCE to the custom JDK–Use Custom JDK if you want to use OpenJDK or in the case of a

local install (no internet access)

• Change JDK by re-running setup

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Other Changes

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Operation Log Locations “About Ambari” Dialog w/ Version

Operation Timing Info

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Learn More

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Resource Location

Apache Ambari Project Page http://ambari.apache.org

Ambari Project Wiki https://cwiki.apache.org/confluence/display/AMBARI

Ambari Project JIRA https://issues.apache.org/jira/browse/AMBARI