How one can Set Up Excessive Availability for Useful resource Supervisor – Half 6

YARN is the Processing Layer of Hadoop, which consists of the Grasp (Useful resource Supervisor) and Slave (Node Supervisor) providers to course of the info. Useful resource Supervisor (RM) is the crucial element that’s chargeable for useful resource allocation and administration amongst all the roles working in Hadoop Cluster.

It’s at all times advisable and greatest observe to have the Cluster Excessive Availability (HA) enabled on Important providers like Namenode and Useful resource Supervisor.


On this article, we’ll see the steps to allow Excessive Availability on Useful resource Supervisor.

Enabling Excessive Availability on Useful resource Supervisor

1. Go to Cloudera Supervisor on the following addresses and navigate to YARN –> Actions –> Allow Excessive Availability.

Cloudera Manager DashboardCloudera Supervisor Dashboard
Enable High AvailabilityAllow Excessive Availability

2. Choose a server the place you’re going to have a second Useful resource Supervisor. Often, we will likely be having a second grasp server to deploy Excessive Availability. Right here, we’re deciding on master2 for enabling HA.

Add Resource Manager HostAdd Useful resource Supervisor Host
Select Resource Manager HostsChoose Useful resource Supervisor Hosts

3. As soon as chosen the master2, click on ‘Proceed’ to proceed.

Resource Manager HostsUseful resource Supervisor Hosts

4. Enabling HA course of will likely be began. You possibly can view the background operations by clicking every steps.

Enable High Availability ProcessAllow Excessive Availability Course of

5. As soon as all of the processes accomplished, you can be getting ‘Completed’ standing. Click on ‘End’.

Finish High Availability ProcessEnd Excessive Availability Course of

6. Confirm the Useful resource Supervisor Excessive availability by viewing the Yarn situations at Cloudera Supervisor –> YARN –> Cases.

Verify High AvailabilityConfirm Excessive Availability

You possibly can see two Useful resource Supervisor, one will likely be within the state ‘Lively’, one other will likely be in ‘Standby’.

Check Resource Manager High AvailabilityTest Useful resource Supervisor Excessive Availability


On this article, we’ve gone via the step-by-step process to allow Excessive Availability on Useful resource Supervisor. Every time the Lively Useful resource Supervisor goes down, the Standby Useful resource supervisor will change into Lively in order that manufacturing is not going to be having an outage.

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