question Re: How do you add nodes to a Cloudbreak cluster? in Archives of Support Questions (Read Only)

How do you add nodes to a Cloudbreak cluster?

awatson — Wed, 30 Sep 2015 20:17:57 GMT

I have deployed a cluster in Azure using Cloudbreak and want to permanently add another two data nodes and, ideally, still have it managed through cloudbreak. How would I go about doing this?

Re: How do you add nodes to a Cloudbreak cluster?

rkovacs — Wed, 30 Sep 2015 20:22:02 GMT

The easiest way is to use our shell. Please read details on wiki page.

Re: How do you add nodes to a Cloudbreak cluster?

rdoktorics — Wed, 30 Sep 2015 20:22:25 GMT

The best and easiest way to add new nodes to a cluster is if you using our cloudbreak shell which is available on github https://github.com/sequenceiq/cloudbreak-shell.

https://github.com/sequenceiq/cloudbreak-shell#upscaling-and-downscaling-a-stack

The version which working with cloudbreak.sequenceiq.com is 0.5.1: http://maven.sequenceiq.com/releases/com/sequenceiq/cloudbreak-shell/0.5.1/cloudbreak-shell-0.5.1.jar

Re: How do you add nodes to a Cloudbreak cluster?

Krisz — Wed, 30 Sep 2015 20:25:08 GMT

On the cluster page you can enable autoscaling. From that point you have 2 options either set up time based or alert based scaling and you have to attach a scaling policy to it to know which host group you want to upscale.

The other option is the Cloudbreak cli/shell (helps you with TAB completion).

stack select --id <ID>

stack node ADD ..

(This feature is currently in Tech Preview).

Re: How do you add nodes to a Cloudbreak cluster?

gbraccialli3 — Sat, 31 Oct 2015 06:57:55 GMT

@khorvath@hortonworks.com

for those using https://cloudbreak.sequenceiq.com hosted version, I think only option is using a time based, right?

Would you have a simple example of "cron expression" usage to be executed only once and add few nodes to the cluster? I was showing cloudbreak to a partner and this was the first question: "how to add more nodes?"

Re: How do you add nodes to a Cloudbreak cluster?

Krisz — Sat, 31 Oct 2015 15:21:50 GMT

You can use metric based as well. We used to demo it to put RM WEB UI health to OK for 5 minutes, then add X nodes to slave_1 hostgroup. For cron: 0 54 10 ? * MON-FRI this would trigger at 10:54 Mon-Fri. Change the date according when you'd like to demo it.