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What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

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What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Expert Contributor

We are using puppet, i would like to know the best process to do o.s updates on individual nodes? Can anyone suggest process?

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Re: What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Mentor

take individual nodes into maintenance mode, stop services and run patch updates. @Ram D

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Re: What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Mentor

take individual nodes into maintenance mode, stop services and run patch updates. @Ram D

Re: What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Expert Contributor

Is it the same for name nodes also? IS there any special care has to be taken? Can you provide the hortonworks documentation link for patch updates?

Re: What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Expert Contributor

I am asking about o.s level updates on machine not service level patches.

Re: What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Mentor
@Ram D

you have seen this before. https://community.hortonworks.com/questions/4940/hdp-os-upgradepatching-best-practices.html. Same with namenodes, make sure you have HA. when you failover everything to standby node, take services down on the active (now standby) namenode and patch it.

Re: What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Re: What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Re: What is the best process to do o.s updates on Name nodes and data nodes when our cluster built by using ec2 instances?

Steps to update OS patches.

1) Stop all application on cluster

2) Apply the OS patches.

3) Reboot the system if required.

4) start all application on cluster

5) Validate all services.