Re: Keeping separate WAL segments for each database
От | Simon Riggs |
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Тема | Re: Keeping separate WAL segments for each database |
Дата | |
Msg-id | 1278168390.4151.7979.camel@ebony обсуждение исходный текст |
Ответ на | Re: Keeping separate WAL segments for each database (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: Keeping separate WAL segments for each database
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Список | pgsql-hackers |
On Wed, 2010-06-30 at 22:21 -0400, Tom Lane wrote: > What about having a single WAL stream for all commit records (thereby > avoiding any possible xact-serialization funnies) and other WAL > records > divided up among multiple streams in some fashion or other? A commit > record would bear minimum-LSN pointers for all the streams that its > transaction had written to. Things like HEAP_CLEAN records would bear > minimum-LSN pointers for the commit stream. Workable? I'm interested in the idea of putting full page writes into one stream and all other WAL records into another. That would allow us to stream less data for log shipping. -- Simon Riggs www.2ndQuadrant.comPostgreSQL Development, 24x7 Support, Training and Services
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