Hi List I am running a multimaster master fractional replication (M1, M2 host) with memberof plugin excluded from replication, I am looking to add 1/2 dozen DS's to replication system but ALL will be read only ( master -> slave replication cfg-one way replication) what will be my options for cfg replication -should I consider using M1 or M2 as master wich will replicate to each slave , so the master M2 will have 6 replcation agreements to each slave host -or -should I consider the cascading replication option one slave gets data from Master DS and from this slave next one replicates and so on ? which one of this designs cfg replication solution will give the best performance?
Thank you Isabella
On Fri, 2017-09-29 at 12:05 -0400, Ghiurea, Isabella wrote:
Hi List I am running a multimaster master fractional replication (M1, M2 host) with memberof plugin excluded from replication, I am looking to add 1/2 dozen DS's to replication system but ALL will be read only ( master -> slave replication cfg-one way replication) what will be my options for cfg replication
When you say "cfg replication", do you mean replication of the cn=config?
-should I consider using M1 or M2 as master wich will replicate to each slave , so the master M2 will have 6 replcation agreements to each slave host -or -should I consider the cascading replication option one slave gets data from Master DS and from this slave next one replicates and so on ?
I would approach this differently.
I would disable fractional replication. These days you *want* to replicate member-of attrs, it doesn't do any harm. Fractional replication does more harm tbh.
I would setup M1 <-> M2, and then have M1 and M2 connect to each slave. So that in the case say M1 is down, all slaves are still updated correctly.
The *only* reason to use fractional repl is referential integrity, and only with a delayed mode - which I don't advise (refint delay should always be 0).
which one of this designs cfg replication solution will give the best performance?
What do you mean by "performance"? As in latency between a write and appearing on a slave? Or parallel read performance?
Hope this helps,
Thank you Isabella _______________________________________________ 389-users mailing list -- 389-users@lists.fedoraproject.org To unsubscribe send an email to 389-users-leave@lists.fedoraproject.org
William , thank you for feedback , 2 years ago when I set up 389-DS multi-mater replication with Memberof plugin I was advised by people on this list to use fractional replication (we were seeing strange behavior) : to exclude Memberof plugin from replication, your reply here mentioned I do not need that anymore , is this correct ? I am a bit confuse , if I should reconsider my replication configuration and use full replication for multi -master ? Here is my present 389-DS version , your feedback much appreciate! 389-ds-base-libs-1.3.5.15-1.fc24.x86_64 389-ds-base-1.3.5.15-1.fc24.x86_64
On 10/04/2017 12:43 PM, isabella.ghiurea@nrc-cnrc.gc.ca wrote:
William , thank you for feedback , 2 years ago when I set up 389-DS multi-mater replication with Memberof plugin I was advised by people on this list to use fractional replication (we were seeing strange behavior)
Correct, you should use fractional replication if you are using memberOf in a MMR env:
https://access.redhat.com/documentation/en-us/red_hat_directory_server/10/ht...
: to exclude Memberof plugin from replication, your reply here mentioned I do not need that anymore , is this correct ? I am a bit confuse , if I should reconsider my replication configuration and use full replication for multi -master ? Here is my present 389-DS version , your feedback much appreciate! 389-ds-base-libs-1.3.5.15-1.fc24.x86_64 389-ds-base-1.3.5.15-1.fc24.x86_64 _______________________________________________ 389-users mailing list -- 389-users@lists.fedoraproject.org To unsubscribe send an email to 389-users-leave@lists.fedoraproject.org
We have 19 master servers and more than 150 slave servers replicating with each other and all replication agreements are full replication, but only one master server have the memberof plugin activated. We never have a problem with this.
Em 4 de out de 2017 2:17 PM, "Mark Reynolds" mareynol@redhat.com escreveu:
On 10/04/2017 12:43 PM, isabella.ghiurea@nrc-cnrc.gc.ca wrote:
William , thank you for feedback , 2 years ago when I set up 389-DS
multi-mater replication with Memberof plugin I was advised by people on this list to use fractional replication (we were seeing strange behavior)
Correct, you should use fractional replication if you are using memberOf in a MMR env:
https://access.redhat.com/documentation/en-us/red_hat_ directory_server/10/html/administration_guide/advanced_ entry_management#memberof-topology
: to exclude Memberof plugin from replication, your reply here
mentioned I do not need that anymore , is this correct ? I am a bit confuse , if I should reconsider my replication configuration and use full replication for multi -master ?
Here is my present 389-DS version , your feedback much appreciate! 389-ds-base-libs-1.3.5.15-1.fc24.x86_64 389-ds-base-1.3.5.15-1.fc24.x86_64 _______________________________________________ 389-users mailing list -- 389-users@lists.fedoraproject.org To unsubscribe send an email to 389-users-leave@lists.fedoraproject.org
_______________________________________________ 389-users mailing list -- 389-users@lists.fedoraproject.org To unsubscribe send an email to 389-users-leave@lists.fedoraproject.org
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Ghiurea, Isabella -
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William Brown