On Tue, 2011-08-02 at 11:55 -0600, Scott Marlowe wrote: > > Is this likely that the disks are too slow on the replication > > servers, or is something else happening, such as the restoration of > logs is considerably slower than on the primary? > > Could be. Are the drives on the slaves much slower? I'd imagine a > slave with the same drive setup would be able to keep up. We have a customer who generates 150+ xlogs per minute under daily load, and our first HS installation failed just because of : * Network was slow (10 Mbit), so could not keep up with WAL files. * Disks were also slow on slave. So yeah, that could be it. Regards, -- Devrim GÜNDÜZ Principal Systems Engineer @ EnterpriseDB: http://www.enterprisedb.com PostgreSQL Danışmanı/Consultant, Red Hat Certified Engineer Community: devrim~PostgreSQL.org, devrim.gunduz~linux.org.tr http://www.gunduz.org Twitter: http://twitter.com/devrimgunduz
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