Installing a Cassandra cluster with multiple Linux OSs (Ubuntu+CentOS)

[Eyal Bar <ey...@kenshoo.com>]

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.

Best,

-- 
Eyal Bar
Big Data Ops Team Lead | Data Platform and Monitoring  | Kenshoo
*Office* +972 (3) 746-6500 *473
*Mobile* +972 (52) 458-6100
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RE: [EXTERNAL] Re: Installing a Cassandra cluster with multiple Linux OSs (Ubuntu+CentOS)

["Durity, Sean R" <SE...@homedepot.com>]

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


Sean Durity
From: Jeff Jirsa <jj...@gmail.com>
Sent: Sunday, October 14, 2018 12:40 PM
To: user@cassandra.apache.org
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 <ey...@kenshoo.com>> 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.

Best,

--
Eyal Bar
Big Data Ops Team Lead | Data Platform and Monitoring  | Kenshoo
Office +972 (3) 746-6500 *473
Mobile +972 (52) 458-6100
www.Kenshoo.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.kenshoo.com_&d=DwMFaQ&c=MtgQEAMQGqekjTjiAhkudQ&r=aC_gxC6z_4f9GLlbWiKzHm1vucZTtVYWDDvyLkh8IaQ&m=LbNYh8vEDD6qnxjJDxsBOv5EaJnW5bqtZeReAlulx4I&s=lFwzDeR4pSFDOmSKAM7fi5ROvX5HIKEejdTZFSkqMmk&e=>
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Re: Installing a Cassandra cluster with multiple Linux OSs (Ubuntu+CentOS)

[Jeff Jirsa <jj...@gmail.com>]

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 <ey...@kenshoo.com> 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.
> 
> Best,
> 
> -- 
> Eyal Bar
> Big Data Ops Team Lead | Data Platform and Monitoring  | Kenshoo
> Office +972 (3) 746-6500 *473
> Mobile +972 (52) 458-6100
> www.Kenshoo.com
> 
> 
> This e-mail, as well as any attached document, may contain material which is confidential and privileged and may include trademark, copyright and other intellectual property rights that are proprietary to Kenshoo Ltd,  its subsidiaries or affiliates ("Kenshoo"). This e-mail and its attachments may be read, copied and used only by the addressee for the purpose(s) for which it was disclosed herein. If you have received it in error, please destroy the message and any attachment, and contact us immediately. If you are not the intended recipient, be aware that any review, reliance, disclosure, copying, distribution or use of the contents of this message without Kenshoo's express permission is strictly prohibited.