Re: Difference between UDR and BDR replication

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От Craig Ringer
Тема Re: Difference between UDR and BDR replication
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Msg-id CAMsr+YE2e_3bjLhfyoke0Scz5Lj4CWwL9Ggg4JnicsHbskxSCA@mail.gmail.com
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Ответ на Difference between UDR and BDR replication  (Kaushal Shriyan <kaushalshriyan@gmail.com>)
Ответы Re: Difference between UDR and BDR replication
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On 28 January 2016 at 19:16, Kaushal Shriyan <kaushalshriyan@gmail.com> wrote:
Hi,

Can somebody please help me understand the difference between UDR and BDR with examples?


BDR is for multiple masters that all replicate to each other.

UDR takes data from one server and copies it to another. One way. (By the way, I strongly advise you to now use pglogical instead of UDR).

BDR:

  A <==> B

UDR/pglogical:

  A ==> B


--
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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