[pgpool-general: 3302] Re: Weight

[James Sewell]

Hello,

This method works well, but doesn't really play nicely with our use of
Puppet (which manages the config files).

Would anyone support looking into a pcp command to change this? I may have
some time early in the new year to have a go at an implementation.

I was thinking a very simple:

pcp_node_weight timeout hostname port# username password nodeID newweight

Maybe there is a reason this won't work / isn't a good idea though?

Cheers,






James Sewell,
PostgreSQL Team Lead / Solutions Architect
______________________________________


 Level 2, 50 Queen St, Melbourne VIC 3000

*P *(+61) 3 8370 8000  *W* www.lisasoft.com  *F *(+61) 3 8370 8099


On Tue, Jul 15, 2014 at 5:38 PM, Tatsuo Ishii <ishii at postgresql.org> wrote:

> > Hey All,
> >
> > I have two nodes setup like so:
> >
> >    - Node 1: Master, weight 0
> >    - Node 2: Slave, weight 1
> >
> > This allows me to send all writes to the master and all reads to the
> slave.
> >
> > At some stage I promote the slave to be the new master (pcp_promote with
> > DISALLOW_TO_FAILOVER), then at some stage later re-provision the master
> as
> > a new slave and re-connect it (pcp_enable)
> >
> > I now have the following setup:
> >
> >    - Node 1: Slave, weight 0
> >    - Node 2: Master, weight 1
> >
> > This means that all write and read queries are serviced by the new
> master,
> > and none by the new slave.
> >
> > Is there a way around this? If there isn't currently could a pcp command
> be
> > implemented which would allow me to manage my own weights?
>
> You could change weight parameters in pgpool.conf then reload it.
>
> Best regards,
> --
> Tatsuo Ishii
> SRA OSS, Inc. Japan
> English: http://www.sraoss.co.jp/index_en.php
> Japanese:http://www.sraoss.co.jp
>
> > Cheers,
> >
> >
> >
> > James Sewell,
> > PostgreSQL Team Lead / Solutions Architect
> > ______________________________________
> >
> >
> >  Level 2, 50 Queen St, Melbourne VIC 3000
> >
> > *P *(+61) 3 8370 8000  *W* www.lisasoft.com  *F *(+61) 3 8370 8099
> >
> > --
> >
> >
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-- 


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