Re: WAL to RAW devices ?
От | Alex Vinogradovs |
---|---|
Тема | Re: WAL to RAW devices ? |
Дата | |
Msg-id | 1188605893.6082.51.camel@localhost обсуждение исходный текст |
Ответ на | Re: WAL to RAW devices ? (Tom Lane <tgl@sss.pgh.pa.us>) |
Список | pgsql-general |
But would it be a problem to have only 1 active segment at all times ? My inspiration pretty much comes from Oracle, where redo logs are pre-configured and can be switched by a command issued to the instance. > Just because you'd like that to be true doesn't make it true. We have > to manage a variable number of active segments; track whether a given > segment is waiting for future use, active, waiting to be archived, etc; > manage status signaling to the archiver process; and so on. Now I'll > freely admit that using a filesystem is only one of the ways that those > problems could be attacked, but that's how they've been attacked in > Postgres. If you want to not have that functionality present then > you'd need to rewrite all that code and provide some other > infrastructure for it to use. > > regards, tom lane
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