Thread: pgsql: Add archive_mode='always' option.

pgsql: Add archive_mode='always' option.

From
Heikki Linnakangas
Date:
Add archive_mode='always' option.

In 'always' mode, the standby independently archives all files it receives
from the primary.

Original patch by Fujii Masao, docs and review by me.

Branch
------
master

Details
-------
http://git.postgresql.org/pg/commitdiff/ffd37740ee6fcd434416ec0c5461f7040e0a11de

Modified Files
--------------
doc/src/sgml/config.sgml                      |   13 +++++++--
doc/src/sgml/high-availability.sgml           |   39 +++++++++++++++++++++++++
src/backend/access/transam/xlog.c             |   22 ++++++++++++--
src/backend/access/transam/xlogarchive.c      |    5 +++-
src/backend/postmaster/postmaster.c           |   37 +++++++++++++++++------
src/backend/replication/walreceiver.c         |   10 +++++--
src/backend/utils/misc/guc.c                  |   21 ++++++-------
src/backend/utils/misc/postgresql.conf.sample |    2 +-
src/include/access/xlog.h                     |   13 +++++++--
9 files changed, 133 insertions(+), 29 deletions(-)


Re: pgsql: Add archive_mode='always' option.

From
Stefan Kaltenbrunner
Date:
On 05/15/2015 05:55 PM, Heikki Linnakangas wrote:
> Add archive_mode='always' option.
>
> In 'always' mode, the standby independently archives all files it receives
> from the primary.
>
> Original patch by Fujii Masao, docs and review by me.
>
> Branch
> ------
> master
>
> Details
> -------
> http://git.postgresql.org/pg/commitdiff/ffd37740ee6fcd434416ec0c5461f7040e0a11de
>
> Modified Files
> --------------
> doc/src/sgml/config.sgml                      |   13 +++++++--
> doc/src/sgml/high-availability.sgml           |   39 +++++++++++++++++++++++++
> src/backend/access/transam/xlog.c             |   22 ++++++++++++--
> src/backend/access/transam/xlogarchive.c      |    5 +++-
> src/backend/postmaster/postmaster.c           |   37 +++++++++++++++++------
> src/backend/replication/walreceiver.c         |   10 +++++--
> src/backend/utils/misc/guc.c                  |   21 ++++++-------
> src/backend/utils/misc/postgresql.conf.sample |    2 +-
> src/include/access/xlog.h                     |   13 +++++++--
> 9 files changed, 133 insertions(+), 29 deletions(-)



this broke the docs build:


http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=guaibasaurus&dt=2015-05-15%2016%3A17%3A01



Stefan


Re: pgsql: Add archive_mode='always' option.

From
Heikki Linnakangas
Date:
On 05/15/2015 07:39 PM, Stefan Kaltenbrunner wrote:
> this broke the docs build:
>
> http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=guaibasaurus&dt=2015-05-15%2016%3A17%3A01

Fixed, thanks.

- Heikki



Re: pgsql: Add archive_mode='always' option.

From
Fujii Masao
Date:
On Sat, May 16, 2015 at 12:55 AM, Heikki Linnakangas
<heikki.linnakangas@iki.fi> wrote:
> Add archive_mode='always' option.
>
> In 'always' mode, the standby independently archives all files it receives
> from the primary.

Thanks a lot!!

-        /* If we have lost the stats collector, try to start a new one */
-        if (PgStatPID == 0 && pmState == PM_RUN)
-            PgStatPID = pgstat_start();

Seems the above code which should exist was removed accidentally.

+     be handled similarly, but the archive_command must test if the file
+     being archived exists already, and if the existing file has identical
+     contents. This requires more care in the archive_command, as it must

Isn't it better to enclose archive_command with <varname> tags?

Regards,

--
Fujii Masao


Re: pgsql: Add archive_mode='always' option.

From
Heikki Linnakangas
Date:
On 05/18/2015 09:46 AM, Fujii Masao wrote:
> On Sat, May 16, 2015 at 12:55 AM, Heikki Linnakangas
> <heikki.linnakangas@iki.fi> wrote:
> -        /* If we have lost the stats collector, try to start a new one */
> -        if (PgStatPID == 0 && pmState == PM_RUN)
> -            PgStatPID = pgstat_start();
>
> Seems the above code which should exist was removed accidentally.

Good catch!

> +     be handled similarly, but the archive_command must test if the file
> +     being archived exists already, and if the existing file has identical
> +     contents. This requires more care in the archive_command, as it must
>
> Isn't it better to enclose archive_command with <varname> tags?

Fixed, thanks.

- Heikki