HDP upgrade from 2.6.3 to 3.0.1

Manjunath — Tue, 01 Jan 2019 01:00:58 GMT

Hello Everyone,

We are planning to upgrade our cluster from 2.6.3 to 3.0.1.

Can somebody suggest me what are the key areas and points to be considered before upgrade.

this is the 1st time I am working on upgrade so it would be really helpful if I get at least some basic things to be focused.

Many Thanks,

Manjunath P N

Re: HDP upgrade from 2.6.3 to 3.0.1

akhilsnaik — Tue, 01 Jan 2019 01:26:40 GMT

Hi @Manjunath P N

HDP-3.0.1 uses ambari-2.7.x versions and you should be aware of ambari-2.7.x behavioural changes here :

https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.0.0/bk_ambari-upgrade/content/bhvr_changes_upgrade_hdp3_amb27.html

Additionally, from HDP-3.x versions support for RHEL/CentOS/OEL 6, SLES 11, and Debian 7 have been removed, you must upgrade your underlying operating system before upgrade if it falls in unsupported version . referring to :

https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.0.0/bk_ambari-upgrade/content/upgrading_cluster_os.html

Support for Some of ambari views has been removed in HDP-3.0.1 , referring to :

https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.0.0/bk_ambari-upgrade/content/bhvr_changes_upgrade_hdp3_amb27.html

Also HDP-3.x upgrade only supports Express upgrade(no rolling upgrade ) , so you might plan for stopping the HDP services while upgrade.

if you are using Hive , you must be in HDP-2.6.5 for smooth conversion of your hive tables .referring to :

	https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.0.0/bk_ambari-upgrade-ppc/content/prepare_hive_for_upgrade.html

Its always better to take Apache Ambari database backup, backup of your HDP services table and data before upgrade.

If its a production cluster feel free to contact hortonworks support for limited upgrade program, details here : https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.0.0/bk_ambari-upgrade/content/ambari_upgrade_guide.html

Refer to : https://supportmatrix.hortonworks.com for any compatability related clarifications

And its always helpfull to perform a upgrade in development enviornment before upgrade in your production cluster

Please login and accept this answer if you found this helpful.

Re: HDP upgrade from 2.6.3 to 3.0.1

Manjunath — Wed, 02 Jan 2019 13:32:50 GMT

Thank you very much for the detailed suggestions.

I will keep you updated on the results, this is really useful.

question Re: HDP upgrade from 2.6.3 to 3.0.1 in Archives of Support Questions (Read Only)

HDP upgrade from 2.6.3 to 3.0.1

Re: HDP upgrade from 2.6.3 to 3.0.1

Re: HDP upgrade from 2.6.3 to 3.0.1