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@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to 389-users-leave@xxxxxxxxxxxxxxxxxxxxxxx -- Sincerely, William Brown Software Engineer Red Hat, Australia/Brisbane
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