Janelle wrote: > Hi again, > > A lot of this information has been very useful. I did have a question I > could not answer. I noticed in the Deployment Recommendations docs, it > says not to have any more than 4 replication agreements. Perhaps I am > missing something, but I don't see how to get a replica to be a master > to be able to create another replicate? Am I missing something obvious > here?
Every IPA install is a master. The only distinction between servers are the optional services of DNS and a CA. So don't get confused by replica vs master. Once an IPA server is up it is a master. We don't recommend any one master to have more than 4 agreements. Each agreement adds a bit more load on the server to calculate the differences to send to each one, so you want to keep it reasonable. I'd recommend making a map of your topology to ensure that no master ends up alone, or one ends up being overloaded. You can use ipa-replica-manage to control the replication topology. By default a single agreement is set up between a new master and the one that created it. Any master can create a new master. As you do your installations be sure to have at least 2 masters with a CA on it to avoid a single point of failure. rob > > Thank you, > ~Janelle > > On 10/13/14 3:18 PM, Dmitri Pal wrote: >> On 10/12/2014 08:07 PM, James wrote: >>> On 12 October 2014 19:55, Janelle <janellenicol...@gmail.com> wrote: >>>> Hi again, >>>> >>>> I was wondering if there were any suggestions for performance of IPA >>>> and >>>> settings to sysctl and maybe limits.conf? I tried the website, but >>>> did not >>>> see anything. Have about 3000 servers that will be talking to 3-4 >>>> masters/replicas. Are there any formulas to follow? >>>> >>>> thanks >>> >>> If you get an answer to this, or if you know of any other performance >>> tuning params, let me know and I'll build it in to puppet-ipa. >>> >>> Thanks, >>> James >>> >> I do not think it is easy automatable. >> Please see http://www.freeipa.org/page/Deployment_Recommendations and >> part about replicas. >> If 3000 in one datacenter then 3 is good enough or 4 if you are very >> LDAP heavy (some applications are like Jira for example). >> If you have 2 data center I would go for 2+2. >> > -- Manage your subscription for the Freeipa-users mailing list: https://www.redhat.com/mailman/listinfo/freeipa-users Go To http://freeipa.org for more info on the project