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RE: [EXTERNAL] Re: Installing a Cassandra cluster with multiple Linux OSs (Ubuntu+CentOS)

Agreed. I have run clusters with both RHEL5 and RHEL6 nodes.



Sean Durity

From: Jeff Jirsa <jjirsa@xxxxxxxxx>
Sent: Sunday, October 14, 2018 12:40 PM
To: user@xxxxxxxxxxxxxxxxxxxx
Subject: [EXTERNAL] Re: Installing a Cassandra cluster with multiple Linux OSs (Ubuntu+CentOS)


Should be fine, just get the java and kernel versions and kernel tuning params as close as possible





Jeff Jirsa


On Oct 14, 2018, at 5:09 PM, Eyal Bar <eyal.bar@xxxxxxxxxxx> wrote:

Hi all,


Did anyone installed a Cassandra cluster with mixed Linux OSs where some of the nodes were ubuntu 12\14\16 and some of the nodes where CentOS7?


Will it work without issues?


Rational: We have a 40 servers cluster which was originally installed only with Ubuntu servers. Now we want to move to CentOS 7 but the effort of reinstalling the entire cluster + migration to CentOS 7 is not simple. So we thought about adding new CentOS 7 nodes to the existing cluster and gradually remove the Ubuntu ones. 


Would love to read your thoughts.





Eyal Bar
Big Data Ops Team Lead | Data Platform and Monitoring  | Kenshoo
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