Re: Restarting standby database have to reaply WAL (redo logs)

On Tue, 2007-09-25 at 12:41 -0300, Cesar Otero wrote:

> Then shutdown standby
>
> ##############################################
> WAL file not present yet. Checking for trigger file...2007-09-25
> 12:31:47 ARTLOG: received fast shutdown request
> 2007-09-25 12:31:47 ARTFATAL: could not restore file
> "0000000100000018000000A6" from archive: return code 15
> 2007-09-25 12:31:47 ARTLOG: startup process (PID 29654) exited with exit code 1
> 2007-09-25 12:31:47 ARTLOG: aborting startup due to startup process failure
> 2007-09-25 12:31:47 ARTLOG: logger shutting down

The shutdown takes down all processes, so the current restore fails in
mid-flight. That's how it works, currently.

> And start standby again

> Trigger file : /var/lib/postgres/procuracion/standby.trigger
> Waiting for WAL file :
> /var/lib/postgres/archive/procuracion/00000001000000180000009D
> WAL file path : 00000001000000180000009D
> Restoring to... : pg_xlog/RECOVERYXLOG
> Sleep interval : 5 seconds
> Max wait interval : 0 forever
> Command for restore : cp
> "/var/lib/postgres/archive/procuracion/00000001000000180000009D"
> "pg_xlog/RECOVERYXLOG"

Then we restart recovery from the last restartpoint.

Is that what you meant?

--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com