Re: [HACKERS] Conflict resolution in Multimaster replication(Postgres-R)

2008-09-04 Thread Markus Wanner
Hello Srinivas, M2Y wrote: Markus: It looks like the hybrid approach used by Postgres-R(as described in that paper) is good. Well, yeah. That's why am working on it ;-) You are very welcome to download the patch and dig into the sources. See www.postgres-r.org for more information. To answ

Re: [HACKERS] Conflict resolution in Multimaster replication(Postgres-R)

2008-09-04 Thread M2Y
Thank you very much Robert and Markus. > What kind of replication are you interested in? > Markus: It looks like the hybrid approach used by Postgres-R(as described in that paper) is good. Thanks, Srinivas -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to

Re: [HACKERS] Conflict resolution in Multimaster replication(Postgres-R)

2008-09-04 Thread Markus Wanner
Hello Srinivas, M2Y wrote: My basic question is: in multimaster replication, if each site goes ahead and does the modifications issued by the transaction and then sends the writeset to others in the group, how the ACID properties be maintained? Well, there are different approaches. With regard

Re: [HACKERS] Conflict resolution in Multimaster replication(Postgres-R)

2008-09-03 Thread Robert Hodges
Hi Srinivas, Multi-master replication in Postgres-R is handled using a process called certification that ensures there are no serializability violations. Look at the paper by Kemme and Alonzo entitled "Don't be Lazy, Be Consistent..." (http://www.cs.mcgill.ca/~kemme/papers/vldb00.html). In th