Re: [Postgres-xc-general] Postgres '-X' invalid option

[Michael P. <mic...@gm...>]

On Wed, Nov 14, 2012 at 9:10 PM, Matteo Dessalvi <M.D...@gs...> wrote:

> Hi all.
>
> I am testing Postgres XC for a project I am starting at my work place .
> I apologize
> if the following is already a known issue.
>
> I was following the installation tutorial on the Postgres XC web site
> (on Sourceforge)
> and I have managed to install Postgresql XC 1.0.1 on a Debian Wheezy VM
> (creating a
> deb package from the sources), but when I am trying to start the
> postgres instances
> (using the postgres user) for the datanodes I'll get this error:
>
> postgres: invalid option -- 'X'
>
X option is valid for versions 1.0.X as specified on the docs:
http://postgres-xc.sourceforge.net/docs/1_0/app-postgres.html
X is used to start a node as a Datanode and C as a Coordinator

On current master branch, those have been changed into more generic options
--coordinator and --datanode to avoid any future conflicts with postgres
options.

On the other hand, pg_ctl uses -Z coordinator/datanode to start a node as a
Coordinator or a Datanode.
It is specified on the docs here:
http://postgres-xc.sourceforge.net/docs/1_0/app-pg-ctl.html
However this page looks to be outdated. I am going to fix that tomorrow.



> I was looking under postgresql-xc-1.0.1/src/backend/tcop/postgres.c and
> in fact this option
> is not listed on the function process_postgres_switches(...), nor it is
> mentioned in main.c,
> located under postgresql-xc-1.0.1/src/backend/main.
> I also tried to find this option on the main Postgresql versions
> (9.1/9.0/8.4) but it seems that
> there isn't any reference to a '-X' option.
>
> According to the short tutorial on
> http://postgres-xc.sourceforge.net/docs/1_0/install-short.html
> this is the required procedure to start the cluster. If I try to start
> the datanodes without the '-X'
> option I'll get another error:
>
> Postgres-XC: must start as either a Coordinator (--datanode) or Data
> Node (--datanode)
>
> which means, I guess, that this option has something to do with the
> roles of the instances.
>
>
> Thanks in advance.
>
>
> Best regards,
> Matteo
>
> --
> Matteo Dessalvi
> Abteilung: HPC
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-- 
Michael Paquier
http://michael.otacoo.com