Re: [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-13 Thread Jan Wieck
Bruce Momjian wrote: Hans-J?rgen Sch?nig wrote: Meanwhile we seem to be in a situation where PostgreSQL is rather competing against Oracle than against MySQL. In our case there are more people asking for Oracle -> Pg migration than for MySQL -> Pg. MySQL does not seem to be the great enemy beca

Re: [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-13 Thread Bruce Momjian
Jan Wieck wrote: > I would like to add that there is a good reason why they aren't in the > same league. As a rule of thumb one can say that the smaller a software > company, the faster some development must turn into revenue. That is why > Oracle and Microsoft have the "time" to do things right

Re: [GENERAL] [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-13 Thread Andrew Sullivan
On Wed, Nov 12, 2003 at 04:43:03PM -0500, Andrew Sullivan wrote: > People often like to say they need hot-fail-capable, five BTW, this was not a rant at the person posting -- he was just reporting what he has heard. I've heard it plenty, too, and the people whence I've heard it are the rant targ

Re: [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-12 Thread Bruce Momjian
Hans-Jürgen Schönig wrote: > Meanwhile we seem to be in a situation where PostgreSQL is rather > competing against Oracle than against MySQL. In our case there are more > people asking for Oracle -> Pg migration than for MySQL -> Pg. MySQL > does not seem to be the great enemy because most peopl

Re: [GENERAL] [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-12 Thread Andrew Sullivan
On Wed, Nov 12, 2003 at 02:08:23PM +0100, Hans-J?rgen Sch?nig wrote: > an inferior product anyway. What I want to point out is that some people > want an alternative Oracle's Real Application Cluster. They want load > balancing and hot failover. Even data centers asking for replication did > no

Re: [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-12 Thread Jan Wieck
Jordan Henderson wrote: Jan, I am wondering if you are familar with the work covered in 'Recovery in Parallel Database Systems' by Svein-Olaf Hvasshovd (Vieweg) ? The book is an excellent detailed description covering high availablility DB implementations. No, but it sounds like something I al

Re: [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-12 Thread Hans-Jürgen Schönig
Jan, This is EXACTLY what we have been waiting for (years) :) :) :). If you need somebody for testing or documentation just drop me a line. Cheers, Hans Jan Wieck wrote: Hans-Jürgen Schönig wrote: Jan, First of all we really appreciate that this is going to be an Open Source project. The

Re: [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-12 Thread Hans-Jürgen Schönig
Jan Wieck wrote: Dear community, for some reason the post I sent yesterday night still did not show up on the mailing lists. I have set up some links on the developers side under http://developer.postgresql.org/~wieck/slony1.html The concept will be the base for some of my work as a Software En

Re: [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-12 Thread Jordan Henderson
Jan, I am wondering if you are familar with the work covered in 'Recovery in Parallel Database Systems' by Svein-Olaf Hvasshovd (Vieweg) ? The book is an excellent detailed description covering high availablility DB implementations. I think your right on by not thinking smaller!! Jordan Hende

Re: [HACKERS] Proposal for a cascaded master-slave replication system

2003-11-12 Thread Jan Wieck
Hans-Jürgen Schönig wrote: Jan, First of all we really appreciate that this is going to be an Open Source project. There is something I wanted to add from a marketing point of view: I have done many public talks in the 2 years or so. There is one question people keep asking me: "How about the

[HACKERS] Proposal for a cascaded master-slave replication system

2003-11-11 Thread Jan Wieck
Dear community, for some reason the post I sent yesterday night still did not show up on the mailing lists. I have set up some links on the developers side under http://developer.postgresql.org/~wieck/slony1.html The concept will be the base for some of my work as a Software Engineer here at Af