Re: pg_basebackup - odd performance

Thanks for your reply. Adding '-c fast' does seem to improve the initial
delay. I'm still seeing delays of several minutes between write bursts.
The server has light OLTP loading.

__________________________________________________________________________________
*Mike Blackwell | Technical Analyst, Distribution Services/Rollout
Management | RR Donnelley*
1750 Wallace Ave | St Charles, IL 60174-3401
Office: 630.313.7818
Mike(dot)Blackwell(at)rrd(dot)com
http://www.rrdonnelley.com

<http://www.rrdonnelley.com/>
* <Mike(dot)Blackwell(at)rrd(dot)com>*

On Mon, Oct 6, 2014 at 9:59 PM, Jov <amutu(at)amutu(dot)com> wrote:

> what is the cmd？the default checkpoint method is spread,so pg_basebackup
> will wait the checkpoint complete on the master.you can set the checkpoint
> method to fast to avoid the waiting.
> 2014年10月7日 2:54 AM于 "Mike Blackwell" <mike(dot)blackwell(at)rrd(dot)com>写道：
>
> I'm seeing some strange behavior running pg_basebackup on 9.3.5. It
>> appears that there are long pauses - up to a couple of minutes - between
>> relatively short bursts of disk activity.
>>
>> I'm not noticing any lock requests outstanding. What might I be missing?
>>
>>
>> __________________________________________________________________________________
>> *Mike Blackwell | Technical Analyst, Distribution Services/Rollout
>> Management | RR Donnelley*
>> 1750 Wallace Ave | St Charles, IL 60174-3401
>> Office: 630.313.7818
>> Mike(dot)Blackwell(at)rrd(dot)com
>> http://www.rrdonnelley.com
>>
>>
>> <http://www.rrdonnelley.com/>
>> * <Mike(dot)Blackwell(at)rrd(dot)com>*
>>
>