Re: [HACKERS] Will switchover still need a checkpoint in 9.1 SR Hot Standby

2011-08-07 Thread PostgreSQL - Hans-Jürgen Schönig
On Aug 7, 2011, at 11:01 AM, Simon Riggs wrote: > On Sun, Aug 7, 2011 at 8:57 AM, Hannu Krosing wrote: >> In 9.0 (as in earlier versions) a former standby host has to do a full >> checkpoint before becoming available as an independent database instance >> in either switchover or failover scenari

Re: [HACKERS] Will switchover still need a checkpoint in 9.1 SR Hot Standby

2011-08-07 Thread Simon Riggs
On Sun, Aug 7, 2011 at 8:57 AM, Hannu Krosing wrote: > In 9.0 (as in earlier versions) a former standby host has to do a full > checkpoint before becoming available as an independent database instance > in either switchover or failover scenarios. > > For most combinations of of bigger than minimal

[HACKERS] Will switchover still need a checkpoint in 9.1 SR Hot Standby

2011-08-07 Thread Hannu Krosing
In 9.0 (as in earlier versions) a former standby host has to do a full checkpoint before becoming available as an independent database instance in either switchover or failover scenarios. For most combinations of of bigger than minimal shared buffers and non-memory-speed disks this can take from