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How to setup High Availability for Ambari server?

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@smohanty@hortonworks.com had answered this recently:

"At this point there is no plan to inherently support an active-passive deployment. There are some work-items to make it easier to have an external logic enable failover such as configuring Ambari Agents to take a list of hostnames for the servers and select the active one to auto-register"

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There is no inherent support. What I described is what some users have implemented.

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Super Collaborator

Instead of using an external monitoring tool such as Upstart or Supervisor, I would recommend using a cluster software solution.

In the past, I have used (not for Hadoop) with good success the Pacemaker software (http://clusterlabs.org). It not only detects some failure, but also automatically raises up the standby daemon, can handle dependencies (first recovering the database, then the application), define some fencing, do placement policies (avoiding having the database and the application on the same node for instance)...

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This may be done in Ambari 2.2 or 2.3, depending on when the community decides to work on it.

https://issues.apache.org/jira/browse/AMBARI-4016 https://issues.apache.org/jira/browse/AMBARI-7896

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Expert Contributor

@Alejandro Fernandez @smohanty

Has there been any development during the past 9 months? Is HA for Ambari (maybe also active-active) supported in Ambari 2.2.?

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New Contributor

This is kindof an important feature. it's been 2 years now and still nothing 😞