Re: WAL Restore process during recovery

On Tue, Jan 17, 2012 at 6:52 AM, Fujii Masao <masao.fujii@gmail.com> wrote:
> On Mon, Jan 16, 2012 at 2:06 AM, Simon Riggs <simon@2ndquadrant.com> wrote:
>> WALRestore process asynchronously executes restore_command while
>> recovery continues working.
>>
>> Overlaps downloading of next WAL file to reduce time delays in file
>> based archive recovery.
>>
>> Handles cases of file-only and streaming/file correctly.
>
> Though I've not reviewed the patch deeply yet, I observed the following
> two problems when I tested the patch.
>
> When I set up streaming replication + archive (i.e., restore_command is set)
> and started the standby, I got the following error:
>
>    FATAL:  all AuxiliaryProcs are in use
>    LOG:  walrestore process (PID 18839) exited with exit code 1
>
> When I started an archive recovery without setting restore_command,
> it successfully finished.

Oh, I did have NUM_AUXILIARY_PROCS increased at one point, but I
"realised" it wasn't needed and removed it. Will change that. Thanks.

--
 Simon Riggs                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services