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Mondi
Silver ⭐️⭐️⭐️
July 2, 2020
Solved

Upgrade OS before Upgrading Cloudera Version?

Hi, I'm planning to upgrade my CM and CDH 5.8 to CM, CDH 6.3 but my Rhel OS Version is just 7.2, planning also to upgrade it to 7.4. just want to know if, what steps need to made? do I need to upgrade the OS first then upgrade my cloudera? or I'll upgrade the OS then uninstall cloudera, then after the OS Upgrade, i'll reinstall cloudera?

akriti
akritiAnswer
Gold ⭐️
September 30, 2020

@Mondi You can choose any convenient path. Both CM/CDH 5.x and 6.x support RHEL7.2. 

So you can upgrade the CM/CDH first and then perform an OS upgrade. See the below docs for help. 

 

https://docs.cloudera.com/cdp-private-cloud/latest/upgrade-cdh/topics/ug_os_upgrade.html

https://docs.cloudera.com/documentation/enterprise/6/release-notes/topics/rg_os_requirements.html#c63_supported_os

 

6 replies

akriti
Gold ⭐️
Gold ⭐️
July 2, 2020

 First, check the OS compatibility by using a given doc link https://docs.cloudera.com/cdp/latest/upgrade-cdh/topics/ug_os_upgrade_before.html  then, if the OS version is fine then you can go ahead and upgrade your Cluster.

Also, I have checked the CM/CDH version 6.3.x  is supporting RHEL 7.2. So you can go ahead and upgrade your CDH cluster. Please find the below document to upgrade CDH cluster. 

https://docs.cloudera.com/cdp/latest/upgrade-cdh/topics/ug_overview.html

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Mondi
MondiAuthor
Silver ⭐️⭐️⭐️
July 2, 2020

Hi @akriti thanks for confirming, also we are planning to upgrade our cluster to 6.3 cdh version, then after that we will upgrade the OS from 7.2 to 7.4. Will there be any effect on the cloudera installed on the servers that we want to have an OS upgrade? May we know what is the best practice for this? Thanks!

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akriti
Gold ⭐️
Gold ⭐️
July 2, 2020

Hello Mondi, Please check the below given document link to upgrade the OS version.

https://docs.cloudera.com/cdp/latest/upgrade-cdh/topics/ug_os_upgrade_before.html

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akriti
Gold ⭐️
Gold ⭐️
September 20, 2020

@Mondi Yes, you need to upgrade the OS first then upgrade CM/CDH. 

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akriti
Gold ⭐️
akritiAnswer
Gold ⭐️
September 30, 2020

@Mondi You can choose any convenient path. Both CM/CDH 5.x and 6.x support RHEL7.2. 

So you can upgrade the CM/CDH first and then perform an OS upgrade. See the below docs for help. 

 

https://docs.cloudera.com/cdp-private-cloud/latest/upgrade-cdh/topics/ug_os_upgrade.html

https://docs.cloudera.com/documentation/enterprise/6/release-notes/topics/rg_os_requirements.html#c63_supported_os

 

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