question Re: How to configure HA for Knox gateway using any load balancer? in Support Questions

How to configure HA for Knox gateway using any load balancer?

narasimha_muvva — Tue, 29 Mar 2016 20:41:19 GMT

Re: How to configure HA for Knox gateway using any load balancer?

emizell — Tue, 29 Mar 2016 21:11:33 GMT

You can use any load balancer in front of Knox and typically a round robin pattern works well. You will need at least 2 Knox instances to ensure HA, but I would look at your expected load and make sure the servers that are up during a failure can handle the load. For example, if you have 2 instances of Knox and one fails, can the one left active handle the load. If not, you may need 3 or more Knox instance.

I hope this helps.

Re: How to configure HA for Knox gateway using any load balancer?

narasimha_muvva — Tue, 29 Mar 2016 21:14:53 GMT

Hi Eric thanks for your reply,is there any proper document you could suggest to follow.

Re: How to configure HA for Knox gateway using any load balancer?

kevin_minder — Tue, 29 Mar 2016 22:02:45 GMT

The Apache Knox User's Guide contains a section (http://knox.apache.org/books/knox-0-6-0/user-guide.html#High+Availability) on using the Apache HTTP server as a load balancer for Knox. Someone familiar with another load balancer should be able to extrapolate the information provided in the Apache Knox User's Guide to setup that product.

Re: How to configure HA for Knox gateway using any load balancer?

amiller — Wed, 30 Mar 2016 01:36:15 GMT

You may also need to add or modify some gateway properties, such as gateway.frontend.url (undefined by default), to accommodate the load balancer.

Re: How to configure HA for Knox gateway using any load balancer?

emizell — Thu, 31 Mar 2016 01:16:25 GMT

Narasimha,

Here are some great docs on Knox, http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.4.0/bk_Knox_Gateway_Admin_Guide/content/ch01.html. Also notice the guides posted by others here to help you with the setup.

Eric