Re: Advice to bring new servers into production

[Leo Pleiman]

My experience has been that the replicas and consumers have a unique id,
more than just an IP address which creates the trust relationship with the
master. If your goal is to simply maintain an IP so your clients don't have
to be repointed, I would build each new LDAP host and replication
agreement, and then as you decommission the old hosts use their IP address
as a virtual IP address on the replacement host. It would take a quick
restart od the LDAP service to start a listener on the virtual Ip address.

Leo Pleiman
Senior System Engineer
Direct 202-787-3622
Cell 410-688-3873

On Tue, May 26, 2020 at 3:57 PM Crocker, Deborah  wrote:
> We have a setup with 2 multi-masters and 3 consumers. We are now building
> new host and want to put them in place ultimately at the same IP address as
> the original ones. I need some advice on how to do this quickly and cleanly.
>
> To add a new consumer the idea now is to set it up and set up replications
> agreements from each master using consumer DNS name (don't start continuous
> replication yet). After initializing new consumer from one master - turn
> off old consumer, remove old consumer agreement from each master, and re-IP
> new consumer. Do we need to restart masters to re-read DNS or will it pick
> that up when it starts the next replication? Is this the best way to do
> this?
>
> Thanks
>
> Deborah Crocker, PhD
> Systems Engineer III
> Office of Information Technology
> The University of Alabama
> Box 870346
> Tuscaloosa, AL 36587
> Office 205-348-3758 | Fax [phone]
> [e-mail]
>
> 389-users mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
> Fedora Code of Conduct:
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
> List Archives:
> https://lists.fedoraproject.org/archives/list/[e-mail]....

[EXTERNAL] Re: Advice to bring new servers into production

[Crocker, Deborah]

I’d like not to take up two ip addresses per host indefinitely. We have re-IP’d our hosts before so I know we can to do this but it was during a downtime when everything was restarted. Just trying to get away with not restarting the masters.

Deborah Crocker, PhD
Systems Engineer III
Office of Information Technology
The University of Alabama
Box 870346
Tuscaloosa, AL 36587
Office 205-348-3758 | Fax [phone]
[e-mail]

From: Leo Pleiman 
Sent: Tuesday, May 26, 2020 3:08 PM
To: General discussion list for the 389 Directory server project. 
Subject: [EXTERNAL] [389-users] Re: Advice to bring new servers into production

My experience has been that the replicas and consumers have a unique id, more than just an IP address which creates the trust relationship with the master. If your goal is to simply maintain an IP so your clients don't have to be repointed, I would build each new LDAP host and replication agreement, and then as you decommission the old hosts use their IP address as a virtual IP address on the replacement host. It would take a quick restart od the LDAP service to start a listener on the virtual Ip address.

Leo Pleiman
Senior System Engineer
Direct 202-787-3622
Cell 410-688-3873
[https://docs.google.com/uc?export=download&id=0B5yMFvgldunoLUhna3pDUnVyb...]

On Tue, May 26, 2020 at 3:57 PM Crocker, Deborah <[e-mail]> wrote:
We have a setup with 2 multi-masters and 3 consumers. We are now building new host and want to put them in place ultimately at the same IP address as the original ones. I need some advice on how to do this quickly and cleanly.

To add a new consumer the idea now is to set it up and set up replications agreements from each master using consumer DNS name (don't start continuous replication yet). After initializing new consumer from one master - turn off old consumer, remove old consumer agreement from each master, and re-IP new consumer. Do we need to restart masters to re-read DNS or will it pick that up when it starts the next replication? Is this the best way to do this?

Thanks

Deborah Crocker, PhD
Systems Engineer III
Office of Information Technology
The University of Alabama
Box 870346
Tuscaloosa, AL 36587
Office 205-348-3758 | Fax [phone]
[e-mail]

_______________________________________________
389-users mailing list -- [e-mail]
To unsubscribe send an email to [e-mail]
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/[e-mail]....