On Fri, 2007-01-05 at 22:57 -0500, Tom Lane wrote: > Jim Nasby <[EMAIL PROTECTED]> writes: > > On Jan 5, 2007, at 6:30 AM, Zeugswetter Andreas ADI SD wrote: > >> Ok, so when you need CRC's on a replicate (but not on the master) you > > > Which sounds to me like a good reason to allow the option in > > recovery.conf as well... > > Actually, I'm not seeing the use-case for a slave having a different > setting from the master at all? > > "My backup server is less reliable than the primary." > > "My backup server is more reliable than the primary." > > Somehow, neither of these statements seem likely to be uttered by > a sane DBA ...
If I take a backup of a server and bring it up on a new system, the blocks in the backup will not have been CRC checked before they go to disk. If I take the same server and now stream log records across to it, why *must* that data be CRC checked, when the original data has not been? I'm proposing choice, with a safe default. That's all. -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 7: You can help support the PostgreSQL project by donating at http://www.postgresql.org/about/donate
