Re: archive_timeout runtime change

2011/10/20 Birta Levente <blevi(dot)linux(at)gmail(dot)com>

> Hi
>
> I use postgrsql 9.1.1 and I want to change archive_timeout on a running
> server. My default archive_timeout is 1800s, and nightly I want to change to
> 3600s or more, but I get the following error message:
>
> set archive_timeout='3600';
> ERROR: parameter "archive_timeout" cannot be changed now
>
> and
>
> update pg_settings set setting='900' where name='archive_timeout';
> ERROR: parameter "archive_timeout" cannot be changed now
>
> I know is possible to change this parameter with pg_ctl reload, but I think
> if is possible without changing the conf file.
>
>

postgres=# select name,setting,context from pg_settings where name like
'%archive%';
name | setting |
context
---------------------------+----------------------------------------------+------------
archive_timeout | 0 |
sighup

You have to edit the configuration file and then reload the Database server
to affect these changes. You can't change the "archive_timeout" value
without editing the PostgreSQL.conf file.

Below link describes,changing the postgresql.conf from a script:

http://blog.endpoint.com/2011/08/changing-postgresqlconf-from-script.html

--Raghu