Re: Tracing down buildfarm "postmaster does not shut down" failures

On 02/09/2016 07:49 PM, Tom Lane wrote:
> Andrew Dunstan <andrew@dunslane.net> writes:
>> So running it's not running with fsync off or using the ramdisk for
>> stats_temp_directory. Of course, that doesn't explain why we're not
>> seeing it on branches earlier than 9.5, but it could explain why we're
>> only seeing it on the ecpg tests.
> BTW, the evidence we already have from axolotl's last run is that
> post-checkpoint shutdown in the ecpg test was pretty quick:
>
> LOG:  database system is shut down at 2016-02-09 16:31:14.784 EST
> LOG:  lock files all released at 2016-02-09 16:31:14.817 EST
>
> However, I'd already noted from some other digging in the buildfarm
> logs that axolotl's speed seems to vary tremendously.  I do not
> know what else you typically run on that hardware, but putting it
> under full load might help prove things.
>
>             

Almost nothing. It's a Raspberry Pi 2B that I got mainly to run a 
buildfarm animal. About the only other thing of note is a very lightly 
configured Nagios instance.

Of course, I could put it under continuous load running a compilation or 
something.

cheers

andrew