On 24.11.2011 11:53, Naoya Anzai wrote:
Hi,
On
http://www.postgresql.org/docs/9.1/interactive/runtime-config-resource.html#RUNTIME-CONFIG-RESOURCE-MEMORY
max_stack_depth's default setting was wrote it is two megabytes. But,I think
that this explanation is not true.
In my environment, When "`ulimit -s` - 512KB" value is less than 2MB, this
value is set up as a default value.
And I also notice that If "ulimit -s" value is "unlimited", then "100KB" is set
up on the PostgreSQL 9.0 and less.
So,I think that you should write that max_stack_depth's default setting depends
on stack size when it is less than 2.5MB,
and "100KB" is set up on the PostgreSQL 9.0 and less when stack size is
unlimited.
Well, the doc section does say:
"On platforms where PostgreSQL can determine the kernel limit, the
server will not allow this variable to be set to an unsafe value. "
though I agree it's a bit vague. It doesn't explicitly say that on such
platforms, the default value will be chosen automatically. Want to
suggest how to phrase that section in the docs?
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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