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in what sequence and how much times should be syncronized more than 3 replicas RRS feed

  • Question

  • How much Sync sessions (in what PAIRS and in what SEQUENCE) should be done to say "EVERYTHING IS SYNCed"?

    Let's say I have 3 replicas: A, B and C. So, for me, 3 sessions (A<->B, B<->C and A<->C) does the full syncing cycle.

    And what if I have 5 or even more replica's. The optimal for me seems HUB scenario runned TWICE:

    1. Let's take replica A as HUB;
    2. Sync "A <-> B",  "A <-> C", "A <-> D" and finaly "A <-> E".
    3. Repeat the step 2 (cause B doesn't have some new items from C, D and E, but A has everything,  and so on). "A <-> E" could be skipped, because E received all possible changes from the first cycle.

    Am I right with such "HUB" scenario (4 + 3 sync sessions)? Or should i run EACH to EACH scenario (9 sessions) not to MISS SOMETHING?

    Thursday, December 27, 2012 12:19 PM

All replies

  • assuming no changes has occurred between two syncs, a two-pass hub-spoke configuration should result to data convergence... that is assuming no conflicts occur as well...
    • Edited by JuneT Friday, December 28, 2012 2:00 AM
    Friday, December 28, 2012 1:59 AM