| From: | Takahiro Itagaki <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp> |
|---|---|
| To: | Jaime Casanova <jcasanov(at)systemguards(dot)com(dot)ec> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Dimitri Fontaine <dfontaine(at)hi-media(dot)com>, Dave Page <dpage(at)pgadmin(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: tie user processes to postmaster |
| Date: | 2010-02-23 05:48:53 |
| Message-ID: | 20100223144853.A184.52131E4D@oss.ntt.co.jp |
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| Lists: | pgsql-hackers |
Jaime Casanova <jcasanov(at)systemguards(dot)com(dot)ec> wrote:
> integrated_user_processes = 'x, y, z'
> API would be user_process_startup(), user_process_shutdown().
FYI, pg_statsinfo version 2 emulates the same behavior with
shared_preload_libraries and spawn an user process in _PG_init().
But it's still ugly and not so reliable. Official APIs would be better.
http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgstatsinfo/pg_statsinfo/lib/libstatsinfo.c
It came from voices from end users that an extension should behave as
a postgres internal daemon rather than a wrapper of postgres.
Regards,
---
Takahiro Itagaki
NTT Open Source Software Center
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